/// <summary>IDisposable::Dispose - clean up GP if possible</summary>
        public void Dispose()
        {
            if (_gp != null)
            {
                IGPUtilities3 gpUtil = new GPUtilitiesClass();
                gpUtil.ClearInMemoryWorkspace();
                gpUtil.ReleaseInternals();
                gpUtil.RemoveInternalData();
                gpUtil.RemoveInternalValues();

                _gp.ResetEnvironments();
                ComReleaser.ReleaseCOMObject(_gp);
                _gp = null;
            }
        }
        /// <summary>IDisposable::Dispose - clean up GP if possible</summary>
        public void Dispose()
        {
            if (_gp != null)
            {
                IGPUtilities3 gpUtil = new GPUtilitiesClass();
                gpUtil.ClearInMemoryWorkspace();
                gpUtil.ReleaseInternals();
                gpUtil.RemoveInternalData();
                gpUtil.RemoveInternalValues();

                _gp.ResetEnvironments();
                ComReleaser.ReleaseCOMObject(_gp);
                _gp = null;
            }
        }
        public void Execute(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.esriSystem.ITrackCancel TrackCancel, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager envMgr, ESRI.ArcGIS.Geodatabase.IGPMessages message)
        {
            _message = message;

            IFeatureClass osmPointFeatureClass = null;
            IFeatureClass osmLineFeatureClass = null;
            IFeatureClass osmPolygonFeatureClass = null;

            try
            {
                DateTime syncTime = DateTime.Now;

                IGPUtilities3 gpUtilities3 = new GPUtilitiesClass();

                if (TrackCancel == null)
                {
                    TrackCancel = new CancelTrackerClass();
                }

                IGPParameter baseURLParameter = paramvalues.get_Element(in_downloadURLNumber) as IGPParameter;
                IGPString baseURLString = gpUtilities3.UnpackGPValue(baseURLParameter) as IGPString;

                if (baseURLString == null)
                {
                    message.AddError(120048, string.Format(resourceManager.GetString("GPTools_NullPointerParameterType"), baseURLParameter.Name));
                }

                IGPParameter downloadExtentParameter = paramvalues.get_Element(in_downloadExtentNumber) as IGPParameter;
                IGPValue downloadExtentGPValue = gpUtilities3.UnpackGPValue(downloadExtentParameter);

                esriGPExtentEnum gpExtent;
                IEnvelope downloadEnvelope = gpUtilities3.GetExtent(downloadExtentGPValue, out gpExtent);

                IGPParameter includeAllReferences = paramvalues.get_Element(in_includeReferencesNumber) as IGPParameter;
                IGPBoolean includeAllReferencesGPValue = gpUtilities3.UnpackGPValue(includeAllReferences) as IGPBoolean;

                if (includeAllReferencesGPValue == null)
                {
                    message.AddError(120048, string.Format(resourceManager.GetString("GPTools_NullPointerParameterType"), includeAllReferences.Name));
                }

                IEnvelope newExtent = null;

                ISpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceEnvironmentClass() as ISpatialReferenceFactory;
                ISpatialReference wgs84 = spatialReferenceFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984) as ISpatialReference;

                // this determines the spatial reference as defined from the gp environment settings and the initial wgs84 SR
                ISpatialReference downloadSpatialReference = gpUtilities3.GetGPSpRefEnv(envMgr, wgs84, newExtent, 0, 0, 0, 0, null);

                downloadEnvelope.Project(wgs84);

                Marshal.ReleaseComObject(wgs84);
                Marshal.ReleaseComObject(spatialReferenceFactory);

                HttpWebRequest httpClient;
                System.Xml.Serialization.XmlSerializer serializer = null;
                serializer = new XmlSerializer(typeof(osm));

                // get the capabilities from the server
                HttpWebResponse httpResponse = null;

                api apiCapabilities = null;
                CultureInfo enUSCultureInfo = new CultureInfo("en-US");

#if DEBUG
                Console.WriteLine("Debbuging");
                message.AddMessage("Debugging...");
#endif

                message.AddMessage(resourceManager.GetString("GPTools_OSMGPDownload_startingDownloadRequest"));

                try
                {
                    httpClient = HttpWebRequest.Create(baseURLString.Value + "/api/capabilities") as HttpWebRequest;
                    httpClient = AssignProxyandCredentials(httpClient);

                    httpResponse = httpClient.GetResponse() as HttpWebResponse;

                    osm osmCapabilities = null;

                    Stream stream = httpResponse.GetResponseStream();

                    XmlTextReader xmlReader = new XmlTextReader(stream);
                    osmCapabilities = serializer.Deserialize(xmlReader) as osm;
                    xmlReader.Close();

                    apiCapabilities = osmCapabilities.Items[0] as api;

                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine(ex.Message);
                    message.AddError(120009, ex.Message);

                    if (ex is WebException)
                    {
                        WebException webException = ex as WebException;
                        string serverErrorMessage = webException.Response.Headers["Error"];
                        if (!String.IsNullOrEmpty(serverErrorMessage))
                        {
                            message.AddError(120009, serverErrorMessage);
                        }
                    }

                }
                finally
                {
                    if (httpResponse != null)
                    {
                        httpResponse.Close();
                    }
                    httpClient = null;
                }

                if (apiCapabilities != null)
                {
                    // check for the extent
                    double roiArea = ((IArea)downloadEnvelope).Area;
                    double capabilitiyArea = Convert.ToDouble(apiCapabilities.area.maximum, new CultureInfo("en-US"));

                    if (roiArea > capabilitiyArea)
                    {
                        message.AddAbort(resourceManager.GetString("GPTools_OSMGPDownload_exceedDownloadROI"));
                        return;
                    }
                }

                // check for user interruption
                if (TrackCancel.Continue() == false)
                {
                    return;
                }

                // list containing either only one document for a single bbox request or multiple if relation references need to be resolved
                List<string> downloadedOSMDocuments = new List<string>();

                string requestURL = baseURLString.Value + "/api/0.6/map?bbox=" + downloadEnvelope.XMin.ToString("f5", enUSCultureInfo) + "," + downloadEnvelope.YMin.ToString("f5", enUSCultureInfo) + "," + downloadEnvelope.XMax.ToString("f5", enUSCultureInfo) + "," + downloadEnvelope.YMax.ToString("f5", enUSCultureInfo);
                string osmMasterDocument = downloadOSMDocument(ref message, requestURL, apiCapabilities);

                // check if the initial request was successfull
                // it might have failed at this point because too many nodes were requested or because of something else
                if (String.IsNullOrEmpty(osmMasterDocument))
                {
                    message.AddAbort(resourceManager.GetString("GPTools_OSMGPDownload_noValidOSMResponse"));
                    return;
                }

                // add the "master document" ) original bbox request to the list
                downloadedOSMDocuments.Add(osmMasterDocument);

                if (includeAllReferencesGPValue.Value)
                {
                    List<string> nodeList = new List<string>();
                    List<string> wayList = new List<string>();
                    List<string> relationList = new List<string>();
                    // check for user interruption
                    if (TrackCancel.Continue() == false)
                    {
                        return;
                    }

                    parseOSMDocument(osmMasterDocument, ref message, ref nodeList, ref wayList, ref relationList, ref downloadedOSMDocuments, baseURLString.Value, apiCapabilities);
                }

                string metadataAbstract = resourceManager.GetString("GPTools_OSMGPDownload_metadata_abstract");
                string metadataPurpose = resourceManager.GetString("GPTools_OSMGPDownload_metadata_purpose");

                IGPParameter targetDatasetParameter = paramvalues.get_Element(out_targetDatasetNumber) as IGPParameter;
                IDEDataset2 targetDEDataset2 = gpUtilities3.UnpackGPValue(targetDatasetParameter) as IDEDataset2;
                IGPValue targetDatasetGPValue = gpUtilities3.UnpackGPValue(targetDatasetParameter);
                string targetDatasetName = ((IGPValue)targetDEDataset2).GetAsText();

                IDataElement targetDataElement = targetDEDataset2 as IDataElement;
                IDataset targetDataset = gpUtilities3.OpenDatasetFromLocation(targetDataElement.CatalogPath);

                IName parentName = null;

                try
                {
                    parentName = gpUtilities3.CreateParentFromCatalogPath(targetDataElement.CatalogPath);
                }
                catch
                {
                    message.AddError(120033, resourceManager.GetString("GPTools_OSMGPFileReader_unable_to_create_fd"));
                    return;
                }

                // test if the feature classes already exists, 
                // if they do and the environments settings are such that an overwrite is not allowed we need to abort at this point
                IGeoProcessorSettings gpSettings = (IGeoProcessorSettings)envMgr;
                if (gpSettings.OverwriteOutput == true)
                {
                }

                else
                {
                    if (gpUtilities3.Exists((IGPValue)targetDEDataset2) == true)
                    {
                        message.AddError(120010, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_basenamealreadyexists"), targetDataElement.Name));
                        return;
                    }
                }

                string Container = "";
                IDEUtilities deUtilities = new DEUtilitiesClass();
                deUtilities.ParseContainer(targetDataElement.CatalogPath, ref Container);

                IFeatureWorkspace featureWorkspace = gpUtilities3.OpenFromString(Container) as IFeatureWorkspace;

                if (featureWorkspace == null)
                {
                    message.AddError(120011, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nofeatureworkspace"), Container));
                    return;
                }

                // load the descriptions from which to derive the domain values
                OSMDomains availableDomains = null;

                System.Xml.XmlTextReader reader = null;
                try
                {
                    if (File.Exists(m_editorConfigurationSettings["osmdomainsfilepath"]))
                    {
                        reader = new System.Xml.XmlTextReader(m_editorConfigurationSettings["osmdomainsfilepath"]);
                    }
                }
                // If is in the server and hasn't been install all the configuration files
                catch
                {
                    if (File.Exists(System.IO.Path.Combine(System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetAssembly(typeof(OSMGPDownload)).Location), "osm_domains.xml")))
                    {
                        reader = new System.Xml.XmlTextReader(System.IO.Path.Combine(System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetAssembly(typeof(OSMGPDownload)).Location), "osm_domains.xml"));
                    }
                }

                if (reader == null)
                {
                    message.AddError(120012, resourceManager.GetString("GPTools_OSMGPDownload_NoDomainConfigFile"));
                    return;
                }

                try
                {
                    serializer = new XmlSerializer(typeof(OSMDomains));
                    availableDomains = serializer.Deserialize(reader) as OSMDomains;
                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine(ex.Message);
                    System.Diagnostics.Debug.WriteLine(ex.StackTrace);
                    message.AddError(120013, ex.Message);
                    return;
                }

                #region define and add domains to the workspace
                // we are using domains to guide the edit templates in the editor for ArcGIS desktop
                Dictionary<string, IDomain> codedValueDomains = new Dictionary<string, IDomain>();

                foreach (var domain in availableDomains.domain)
                {
                    ICodedValueDomain pointCodedValueDomain = new CodedValueDomainClass();
                    ((IDomain)pointCodedValueDomain).Name = domain.name + "_pt";
                    ((IDomain)pointCodedValueDomain).FieldType = esriFieldType.esriFieldTypeString;

                    ICodedValueDomain lineCodedValueDomain = new CodedValueDomainClass();
                    ((IDomain)lineCodedValueDomain).Name = domain.name + "_ln";
                    ((IDomain)lineCodedValueDomain).FieldType = esriFieldType.esriFieldTypeString;

                    ICodedValueDomain polygonCodedValueDomain = new CodedValueDomainClass();
                    ((IDomain)polygonCodedValueDomain).Name = domain.name + "_ply";
                    ((IDomain)polygonCodedValueDomain).FieldType = esriFieldType.esriFieldTypeString;

                    for (int i = 0; i < domain.domainvalue.Length; i++)
                    {
                        for (int domainGeometryIndex = 0; domainGeometryIndex < domain.domainvalue[i].geometrytype.Length; domainGeometryIndex++)
                        {
                            switch (domain.domainvalue[i].geometrytype[domainGeometryIndex])
                            {
                                case geometrytype.point:
                                    pointCodedValueDomain.AddCode(domain.domainvalue[i].value, domain.domainvalue[i].value);
                                    break;
                                case geometrytype.line:
                                    lineCodedValueDomain.AddCode(domain.domainvalue[i].value, domain.domainvalue[i].value);
                                    break;
                                case geometrytype.polygon:
                                    polygonCodedValueDomain.AddCode(domain.domainvalue[i].value, domain.domainvalue[i].value);
                                    break;
                                default:
                                    break;
                            }
                        }
                    }

                    // add the domain tables to the domains collection
                    codedValueDomains.Add(((IDomain)pointCodedValueDomain).Name, (IDomain)pointCodedValueDomain);
                    codedValueDomains.Add(((IDomain)lineCodedValueDomain).Name, (IDomain)lineCodedValueDomain);
                    codedValueDomains.Add(((IDomain)polygonCodedValueDomain).Name, (IDomain)polygonCodedValueDomain);
                }

                IWorkspaceDomains workspaceDomain = featureWorkspace as IWorkspaceDomains;
                foreach (var domain in codedValueDomains.Values)
                {
                    IDomain testDomain = null;
                    try
                    {
                        testDomain = workspaceDomain.get_DomainByName(domain.Name);
                    }
                    catch (Exception ex)
                    {
                        System.Diagnostics.Debug.WriteLine(ex.Message);
                        System.Diagnostics.Debug.WriteLine(ex.StackTrace);
                    }

                    if (testDomain == null)
                    {
                        workspaceDomain.AddDomain(domain);
                    }
                }
                #endregion

                IGPEnvironment configKeyword = getEnvironment(envMgr, "configKeyword");
                IGPString gpString = null;
                if (configKeyword != null)
                    gpString = configKeyword.Value as IGPString;

                string storageKeyword = String.Empty;

                if (gpString != null)
                {
                    storageKeyword = gpString.Value;
                }

                IFeatureDataset targetFeatureDataset = null;
                if (gpUtilities3.Exists((IGPValue)targetDEDataset2))
                {
                    targetFeatureDataset = gpUtilities3.OpenDataset((IGPValue)targetDEDataset2) as IFeatureDataset;
                }
                else
                {
                    targetFeatureDataset = featureWorkspace.CreateFeatureDataset(targetDataElement.Name, downloadSpatialReference);
                }


                ESRI.ArcGIS.esriSystem.UID osmClassExtensionUID = new ESRI.ArcGIS.esriSystem.UIDClass();
                //GUID for the OSM feature class extension
                osmClassExtensionUID.Value = "{65CA4847-8661-45eb-8E1E-B2985CA17C78}";


                downloadSpatialReference = ((IGeoDataset)targetFeatureDataset).SpatialReference;
                OSMToolHelper osmToolHelper = new OSMToolHelper();

                #region create point/line/polygon feature classes and tables
                // points
                try
                {
                    osmPointFeatureClass = osmToolHelper.CreatePointFeatureClass((IWorkspace2)featureWorkspace, targetFeatureDataset, targetDataElement.Name + "_osm_pt", null, null, osmClassExtensionUID, storageKeyword, availableDomains, metadataAbstract, metadataPurpose);
                }
                catch (Exception ex)
                {
                    message.AddError(120014, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullpointfeatureclass"), ex.Message));
                    return;
                }

                if (osmPointFeatureClass == null)
                {
                    return;
                }

                // change the property set of the osm class extension to skip any change detection during the initial data load
                osmPointFeatureClass.RemoveOSMClassExtension();

                // lines
                try
                {
                    osmLineFeatureClass = osmToolHelper.CreateLineFeatureClass((IWorkspace2)featureWorkspace, targetFeatureDataset, targetDataElement.Name + "_osm_ln", null, null, osmClassExtensionUID, storageKeyword, availableDomains, metadataAbstract, metadataPurpose);
                }
                catch (Exception ex)
                {
                    message.AddError(120015, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nulllinefeatureclass"), ex.Message));
                    return;
                }

                if (osmLineFeatureClass == null)
                {
                    return;
                }

                // change the property set of the osm class extension to skip any change detection during the initial data load
                osmLineFeatureClass.RemoveOSMClassExtension();

                // polygons
                try
                {
                    osmPolygonFeatureClass = osmToolHelper.CreatePolygonFeatureClass((IWorkspace2)featureWorkspace, targetFeatureDataset, targetDataElement.Name + "_osm_ply", null, null, osmClassExtensionUID, storageKeyword, availableDomains, metadataAbstract, metadataPurpose);
                }
                catch (Exception ex)
                {
                    message.AddError(120016, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullpolygonfeatureclass"), ex.Message));
                    return;
                }

                if (osmPolygonFeatureClass == null)
                {
                    return;
                }

                // change the property set of the osm class extension to skip any change detection during the initial data load
                osmPolygonFeatureClass.RemoveOSMClassExtension();

                // relation table
                ITable relationTable = null;

                try
                {
                    relationTable = osmToolHelper.CreateRelationTable((IWorkspace2)featureWorkspace, targetDataElement.Name + "_osm_relation", null, storageKeyword, metadataAbstract, metadataPurpose);
                }
                catch (Exception ex)
                {
                    message.AddError(120017, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullrelationtable"), ex.Message));
                    return;
                }

                if (relationTable == null)
                {
                    return;
                }

                // revision table 
                ITable revisionTable = null;

                try
                {
                    revisionTable = osmToolHelper.CreateRevisionTable((IWorkspace2)featureWorkspace, targetDataElement.Name + "_osm_revision", null, storageKeyword);
                }
                catch (Exception ex)
                {
                    message.AddError(120018, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullrelationtable"), ex.Message));
                    return;
                }

                if (revisionTable == null)
                {
                    return;
                }

                // check for user interruption
                if (TrackCancel.Continue() == false)
                {
                    return;
                }
                #endregion

                #region clean any existing data from loading targets
                ESRI.ArcGIS.Geoprocessing.IGeoProcessor2 gp = new ESRI.ArcGIS.Geoprocessing.GeoProcessorClass();
                IGeoProcessorResult gpResult = new GeoProcessorResultClass();

                try
                {
                    IVariantArray truncateParameters = new VarArrayClass();
                    truncateParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "\\" + targetDataElement.Name + "_osm_pt");
                    gpResult = gp.Execute("TruncateTable_management", truncateParameters, TrackCancel);

                    truncateParameters = new VarArrayClass();
                    truncateParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "\\" + targetDataElement.Name + "_osm_ln");
                    gpResult = gp.Execute("TruncateTable_management", truncateParameters, TrackCancel);

                    truncateParameters = new VarArrayClass();
                    truncateParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "\\" + targetDataElement.Name + "_osm_ply");
                    gpResult = gp.Execute("TruncateTable_management", truncateParameters, TrackCancel);

                    truncateParameters = new VarArrayClass();
                    truncateParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "_osm_relation");
                    gpResult = gp.Execute("TruncateTable_management", truncateParameters, TrackCancel);

                    truncateParameters = new VarArrayClass();
                    truncateParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "_osm_revision");
                    gpResult = gp.Execute("TruncateTable_management", truncateParameters, TrackCancel);
                }
                catch (Exception ex)
                {
                    message.AddWarning(ex.Message);
                }
                #endregion

                Dictionary<string, OSMToolHelper.simplePointRef> osmNodeDictionary = null;

                foreach (string osmDownloadDocument in downloadedOSMDocuments.Reverse<string>())
                {
                    long nodeCapacity = 0;
                    long wayCapacity = 0;
                    long relationCapacity = 0;

                    message.AddMessage(resourceManager.GetString("GPTools_OSMGPFileReader_countingNodes"));

                    osmToolHelper.countOSMStuff(osmDownloadDocument, ref nodeCapacity, ref wayCapacity, ref relationCapacity, ref TrackCancel);
                    message.AddMessage(String.Format(resourceManager.GetString("GPTools_OSMGPFileReader_countedElements"), nodeCapacity, wayCapacity, relationCapacity));

                    if (osmNodeDictionary == null)
                        osmNodeDictionary = new Dictionary<string, OSMToolHelper.simplePointRef>(Convert.ToInt32(nodeCapacity));

                    #region load points
                    osmToolHelper.loadOSMNodes(osmDownloadDocument, ref TrackCancel, ref message, targetDatasetGPValue, osmPointFeatureClass, false, false, Convert.ToInt32(nodeCapacity), ref osmNodeDictionary, featureWorkspace, downloadSpatialReference, availableDomains, false);
                    #endregion

                    if (TrackCancel.Continue() == false)
                    {
                        return;
                    }

                    #region load ways
                    if (wayCapacity > 0)
                    {
                        List<string> missingWays = null;
                        missingWays = osmToolHelper.loadOSMWays(osmDownloadDocument, ref TrackCancel, ref message, targetDatasetGPValue, osmPointFeatureClass, osmLineFeatureClass, osmPolygonFeatureClass, false, false, Convert.ToInt32(wayCapacity), ref osmNodeDictionary, featureWorkspace, downloadSpatialReference, availableDomains, false);
                    }
                    #endregion

                    if (TrackCancel.Continue() == false)
                    {
                        return;
                    }

                    # region for conserve memory condition, update refcount
                    int refCounterFieldIndex = osmPointFeatureClass.Fields.FindField("wayRefCount");
                    if (refCounterFieldIndex > -1)
                    {
                        foreach (var refNode in osmNodeDictionary)
                        {
                            try
                            {
                                IFeature updateFeature = osmPointFeatureClass.GetFeature(refNode.Value.pointObjectID);

                                int refCount = refNode.Value.RefCounter;
                                if (refCount == 0)
                                {
                                    refCount = 1;
                                }

                                updateFeature.set_Value(refCounterFieldIndex, refCount);
                                updateFeature.Store();
                            }
                            catch { }
                        }
                    }

                    #endregion

                    // check for user interruption
                    if (TrackCancel.Continue() == false)
                    {
                        return;
                    }
                    ESRI.ArcGIS.Geoprocessor.Geoprocessor geoProcessor = new ESRI.ArcGIS.Geoprocessor.Geoprocessor();

                    #region for local geodatabases enforce spatial integrity
                    bool storedOriginal = geoProcessor.AddOutputsToMap;
                    geoProcessor.AddOutputsToMap = false;

                    try
                    {
                        if (osmLineFeatureClass != null)
                        {
                            if (((IDataset)osmLineFeatureClass).Workspace.Type == esriWorkspaceType.esriLocalDatabaseWorkspace)
                            {
                                IVariantArray lineRepairParameters = new VarArrayClass();
                                lineRepairParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "\\" + targetDataElement.Name + "_osm_ln");
                                lineRepairParameters.Add("DELETE_NULL");

                                IGeoProcessorResult2 gpResults = gp.Execute("RepairGeometry_management", lineRepairParameters, TrackCancel) as IGeoProcessorResult2;
                                message.AddMessages(gpResults.GetResultMessages());
                            }
                        }

                        if (osmPolygonFeatureClass != null)
                        {
                            if (((IDataset)osmPolygonFeatureClass).Workspace.Type == esriWorkspaceType.esriLocalDatabaseWorkspace)
                            {
                                IVariantArray polygonRepairParameters = new VarArrayClass();
                                polygonRepairParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "\\" + targetDataElement.Name + "_osm_ply");
                                polygonRepairParameters.Add("DELETE_NULL");

                                IGeoProcessorResult2 gpResults = gp.Execute("RepairGeometry_management", polygonRepairParameters, TrackCancel) as IGeoProcessorResult2;
                                message.AddMessages(gpResults.GetResultMessages());
                            }
                        }
                    }
                    catch
                    {
                        message.AddWarning(resourceManager.GetString("GPTools_OSMGPDownload_repairgeometryfailure"));
                    }
                    geoProcessor.AddOutputsToMap = storedOriginal;
                    #endregion



                    #region load relations
                    if (relationCapacity > 0)
                    {
                        List<string> missingRelations = null;
                        missingRelations = osmToolHelper.loadOSMRelations(osmDownloadDocument, ref TrackCancel, ref message, targetDatasetGPValue, osmPointFeatureClass, osmLineFeatureClass, osmPolygonFeatureClass, Convert.ToInt32(relationCapacity), relationTable, availableDomains, false, false);
                    }
                    #endregion
                }

                #region update the references counts and member lists for nodes
                message.AddMessage(resourceManager.GetString("GPTools_OSMGPFileReader_updatereferences"));
                IFeatureCursor pointUpdateCursor = null;

                using (SchemaLockManager ptLockManager = new SchemaLockManager(osmPointFeatureClass as ITable))
                {
                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        int updateCount = 0;
                        pointUpdateCursor = osmPointFeatureClass.Update(null, false);
                        updateCount = ((ITable)osmPointFeatureClass).RowCount(null);

                        IStepProgressor stepProgressor = TrackCancel as IStepProgressor;

                        if (stepProgressor != null)
                        {
                            stepProgressor.MinRange = 0;
                            stepProgressor.MaxRange = updateCount;
                            stepProgressor.Position = 0;
                            stepProgressor.Message = resourceManager.GetString("GPTools_OSMGPFileReader_updatepointrefcount");
                            stepProgressor.StepValue = 1;
                            stepProgressor.Show();
                        }

                        comReleaser.ManageLifetime(pointUpdateCursor);

                        IFeature pointFeature = pointUpdateCursor.NextFeature();

                        int osmPointIDFieldIndex = osmPointFeatureClass.FindField("OSMID");
                        int osmWayRefCountFieldIndex = osmPointFeatureClass.FindField("wayRefCount");
                        int positionCounter = 0;
                        while (pointFeature != null)
                        {
                            positionCounter++;
                            string nodeID = Convert.ToString(pointFeature.get_Value(osmPointIDFieldIndex));

                            // let get the reference counter from the internal node dictionary
                            if (osmNodeDictionary[nodeID].RefCounter == 0)
                            {
                                pointFeature.set_Value(osmWayRefCountFieldIndex, 1);
                            }
                            else
                            {
                                pointFeature.set_Value(osmWayRefCountFieldIndex, osmNodeDictionary[nodeID].RefCounter);
                            }

                            pointUpdateCursor.UpdateFeature(pointFeature);

                            if (pointFeature != null)
                                Marshal.ReleaseComObject(pointFeature);

                            pointFeature = pointUpdateCursor.NextFeature();

                            if (stepProgressor != null)
                            {
                                stepProgressor.Position = positionCounter;
                            }
                        }

                        if (stepProgressor != null)
                        {
                            stepProgressor.Hide();
                        }
                    }
                }
                #endregion

                // clean all the downloaded OSM files
                foreach (string osmFile in downloadedOSMDocuments)
                {
                    if (File.Exists(osmFile))
                    {
                        try
                        {
                            File.Delete(osmFile);
                        }
                        catch { }
                    }
                }

                SyncState.StoreLastSyncTime(targetDatasetName, syncTime);

                gpUtilities3 = new GPUtilitiesClass() as IGPUtilities3;

                // repackage the feature class into their respective gp values
                IGPParameter pointFeatureClassParameter = paramvalues.get_Element(out_osmPointsNumber) as IGPParameter;
                IGPValue pointFeatureClassPackGPValue = gpUtilities3.UnpackGPValue(pointFeatureClassParameter);
                gpUtilities3.PackGPValue(pointFeatureClassPackGPValue, pointFeatureClassParameter);

                IGPParameter lineFeatureClassParameter = paramvalues.get_Element(out_osmLinesNumber) as IGPParameter;
                IGPValue lineFeatureClassPackGPValue = gpUtilities3.UnpackGPValue(lineFeatureClassParameter);
                gpUtilities3.PackGPValue(lineFeatureClassPackGPValue, lineFeatureClassParameter);

                IGPParameter polygonFeatureClassParameter = paramvalues.get_Element(out_osmPolygonsNumber) as IGPParameter;
                IGPValue polygon1FeatureClassPackGPValue = gpUtilities3.UnpackGPValue(polygonFeatureClassParameter);
                gpUtilities3.PackGPValue(polygon1FeatureClassPackGPValue, polygonFeatureClassParameter);

                gpUtilities3.ReleaseInternals();
                Marshal.ReleaseComObject(gpUtilities3);

                Marshal.ReleaseComObject(baseURLString);
                Marshal.ReleaseComObject(downloadExtentGPValue);
                Marshal.ReleaseComObject(downloadEnvelope);
                Marshal.ReleaseComObject(includeAllReferences);
                Marshal.ReleaseComObject(downloadSpatialReference);

                if (osmToolHelper != null)
                    osmToolHelper = null;
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine(ex.Message);
                System.Diagnostics.Debug.WriteLine(ex.StackTrace);
                message.AddError(120019, ex.Message);
            }
            finally
            {
                try
                {
                    if (osmPointFeatureClass != null)
                    {
                        osmPointFeatureClass.ApplyOSMClassExtension();
                        Marshal.ReleaseComObject(osmPointFeatureClass);
                    }

                    if (osmLineFeatureClass != null)
                    {
                        osmLineFeatureClass.ApplyOSMClassExtension();
                        Marshal.ReleaseComObject(osmLineFeatureClass);
                    }

                    if (osmPolygonFeatureClass != null)
                    {
                        osmPolygonFeatureClass.ApplyOSMClassExtension();
                        Marshal.ReleaseComObject(osmPolygonFeatureClass);
                    }
                }
                catch (Exception ex)
                {
                    message.AddError(120020, ex.ToString());
                }
            }
        }
        public void Execute(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.esriSystem.ITrackCancel TrackCancel, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager envMgr, ESRI.ArcGIS.Geodatabase.IGPMessages message)
        {
            IFeatureClass osmPointFeatureClass = null;
            IFeatureClass osmLineFeatureClass = null;
            IFeatureClass osmPolygonFeatureClass = null;
            OSMToolHelper osmToolHelper = null;

            try
            {
                DateTime syncTime = DateTime.Now;

                IGPUtilities3 gpUtilities3 = new GPUtilitiesClass();
                osmToolHelper = new OSMToolHelper();

                if (TrackCancel == null)
                {
                    TrackCancel = new CancelTrackerClass();
                }

                IGPParameter osmFileParameter = paramvalues.get_Element(in_osmFileNumber) as IGPParameter;
                IGPValue osmFileLocationString = gpUtilities3.UnpackGPValue(osmFileParameter) as IGPValue;

                // ensure that the specified file does exist
                bool osmFileExists = false;

                try
                {
                    osmFileExists = System.IO.File.Exists(osmFileLocationString.GetAsText());
                }
                catch (Exception ex)
                {
                    message.AddError(120029, String.Format(resourceManager.GetString("GPTools_OSMGPMultiLoader_problemaccessingfile"), ex.Message));
                    return;
                }

                if (osmFileExists == false)
                {
                    message.AddError(120030, String.Format(resourceManager.GetString("GPTools_OSMGPFileReader_osmfiledoesnotexist"), osmFileLocationString.GetAsText()));
                    return;
                }

                long nodeCapacity = 0;
                long wayCapacity = 0;
                long relationCapacity = 0;

                // this assume a clean, tidy XML file - if this is not the case, there will by sync issues later on
                osmToolHelper.countOSMStuffFast(osmFileLocationString.GetAsText(), ref nodeCapacity, ref wayCapacity, ref relationCapacity, ref TrackCancel);

                if (nodeCapacity == 0 && wayCapacity == 0 && relationCapacity == 0)
                {
                    return;
                }

                message.AddMessage(String.Format(resourceManager.GetString("GPTools_OSMGPMultiLoader_countedElements"), nodeCapacity, wayCapacity, relationCapacity));

                // determine the number of threads to be used
                IGPEnvironment parallelProcessingFactorEnvironment = OSMToolHelper.getEnvironment(envMgr, "parallelProcessingFactor");
                IGPString parallelProcessingFactorString = parallelProcessingFactorEnvironment.Value as IGPString;

                // the default value is to use half the cores for additional threads - I am aware that we are comparing apples and oranges but I need a number
                int numberOfThreads = Convert.ToInt32(System.Environment.ProcessorCount / 2);

                if (!(parallelProcessingFactorEnvironment.Value.IsEmpty()))
                {
                    if (!Int32.TryParse(parallelProcessingFactorString.Value, out numberOfThreads))
                    {
                        // this case we have a percent string
                        string resultString = Regex.Match(parallelProcessingFactorString.Value, @"\d+").Value;
                        numberOfThreads = Convert.ToInt32(Int32.Parse(resultString) / 100 * System.Environment.ProcessorCount);
                    }
                }

                // tread the special case of 0
                if (numberOfThreads <= 0)
                    numberOfThreads = 1;

                IGPEnvironment configKeyword = OSMToolHelper.getEnvironment(envMgr, "configKeyword");
                IGPString gpString = configKeyword.Value as IGPString;

                string storageKeyword = String.Empty;

                if (gpString != null)
                {
                    storageKeyword = gpString.Value;
                }

                // determine the temp folder to be use for the intermediate files
                IGPEnvironment scratchWorkspaceEnvironment = OSMToolHelper.getEnvironment(envMgr, "scratchWorkspace");
                IDEWorkspace deWorkspace = scratchWorkspaceEnvironment.Value as IDEWorkspace;
                String scratchWorkspaceFolder = String.Empty;

                if (deWorkspace != null)
                {
                    if (scratchWorkspaceEnvironment.Value.IsEmpty())
                    {
                        scratchWorkspaceFolder = (new System.IO.FileInfo(osmFileLocationString.GetAsText())).DirectoryName;
                    }
                    else
                    {
                        if (deWorkspace.WorkspaceType == esriWorkspaceType.esriRemoteDatabaseWorkspace)
                        {
                            scratchWorkspaceFolder = System.IO.Path.GetTempPath();
                        }
                        else if (deWorkspace.WorkspaceType == esriWorkspaceType.esriFileSystemWorkspace)
                        {
                            scratchWorkspaceFolder = ((IDataElement)deWorkspace).CatalogPath;
                        }
                        else
                        {
                            scratchWorkspaceFolder = (new System.IO.FileInfo(((IDataElement)deWorkspace).CatalogPath)).DirectoryName;
                        }
                    }
                }
                else
                {
                    scratchWorkspaceFolder = (new System.IO.FileInfo(osmFileLocationString.GetAsText())).DirectoryName;
                }

                string metadataAbstract = resourceManager.GetString("GPTools_OSMGPFileReader_metadata_abstract");
                string metadataPurpose = resourceManager.GetString("GPTools_OSMGPFileReader_metadata_purpose");

                IGPParameter osmPointsFeatureClassParameter = paramvalues.get_Element(out_osmPointsNumber) as IGPParameter;
                IGPValue osmPointsFeatureClassGPValue = gpUtilities3.UnpackGPValue(osmPointsFeatureClassParameter) as IGPValue;

                IName workspaceName = gpUtilities3.CreateParentFromCatalogPath(osmPointsFeatureClassGPValue.GetAsText());
                IWorkspace2 pointFeatureWorkspace = workspaceName.Open() as IWorkspace2;

                string[] pointFCNameElements = osmPointsFeatureClassGPValue.GetAsText().Split(System.IO.Path.DirectorySeparatorChar);

                IGPParameter tagPointCollectionParameter = paramvalues.get_Element(in_pointFieldNamesNumber) as IGPParameter;
                IGPMultiValue tagPointCollectionGPValue = gpUtilities3.UnpackGPValue(tagPointCollectionParameter) as IGPMultiValue;

                List<String> pointTagstoExtract = null;

                if (tagPointCollectionGPValue.Count > 0)
                {
                    pointTagstoExtract = new List<string>();

                    for (int valueIndex = 0; valueIndex < tagPointCollectionGPValue.Count; valueIndex++)
                    {
                        string nameOfTag = tagPointCollectionGPValue.get_Value(valueIndex).GetAsText();

                        pointTagstoExtract.Add(nameOfTag);
                    }
                }
                else
                {
                    pointTagstoExtract = OSMToolHelper.OSMSmallFeatureClassFields();
                }

                // points
                try
                {
                    osmPointFeatureClass = osmToolHelper.CreateSmallPointFeatureClass(pointFeatureWorkspace,
                        pointFCNameElements[pointFCNameElements.Length - 1], storageKeyword, metadataAbstract,
                        metadataPurpose, pointTagstoExtract);
                }
                catch (Exception ex)
                {
                    message.AddError(120035, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullpointfeatureclass"), ex.Message));
                    return;
                }

                if (osmPointFeatureClass == null)
                {
                    return;
                }

                int osmPointIDFieldIndex = osmPointFeatureClass.FindField("OSMID");
                Dictionary<string, int> mainPointAttributeFieldIndices = new Dictionary<string, int>();

                foreach (string fieldName in OSMToolHelper.OSMSmallFeatureClassFields())
                {
                    int currentFieldIndex = osmPointFeatureClass.FindField(fieldName);

                    if (currentFieldIndex != -1)
                    {
                        mainPointAttributeFieldIndices.Add(fieldName, currentFieldIndex);
                    }
                }

                int tagCollectionPointFieldIndex = osmPointFeatureClass.FindField("osmTags");
                int osmSupportingElementPointFieldIndex = osmPointFeatureClass.FindField("osmSupportingElement");

                IGPParameter osmLineFeatureClassParameter = paramvalues.get_Element(out_osmLinesNumber) as IGPParameter;
                IGPValue osmLineFeatureClassGPValue = gpUtilities3.UnpackGPValue(osmLineFeatureClassParameter) as IGPValue;

                IName lineWorkspaceName = gpUtilities3.CreateParentFromCatalogPath(osmLineFeatureClassGPValue.GetAsText());
                IWorkspace2 lineFeatureWorkspace = lineWorkspaceName.Open() as IWorkspace2;

                string[] lineFCNameElements = osmLineFeatureClassGPValue.GetAsText().Split(System.IO.Path.DirectorySeparatorChar);

                IGPParameter tagLineCollectionParameter = paramvalues.get_Element(in_lineFieldNamesNumber) as IGPParameter;
                IGPMultiValue tagLineCollectionGPValue = gpUtilities3.UnpackGPValue(tagLineCollectionParameter) as IGPMultiValue;

                List<String> lineTagstoExtract = null;

                if (tagLineCollectionGPValue.Count > 0)
                {
                    lineTagstoExtract = new List<string>();

                    for (int valueIndex = 0; valueIndex < tagLineCollectionGPValue.Count; valueIndex++)
                    {
                        string nameOfTag = tagLineCollectionGPValue.get_Value(valueIndex).GetAsText();

                        lineTagstoExtract.Add(nameOfTag);
                    }
                }
                else
                {
                    lineTagstoExtract = OSMToolHelper.OSMSmallFeatureClassFields();
                }

                // lines
                try
                {
                    osmLineFeatureClass = osmToolHelper.CreateSmallLineFeatureClass(lineFeatureWorkspace, lineFCNameElements[lineFCNameElements.Length -1],
                        storageKeyword, metadataAbstract, metadataPurpose, lineTagstoExtract);
                }
                catch (Exception ex)
                {
                    message.AddError(120036, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nulllinefeatureclass"), ex.Message));
                    return;
                }

                if (osmLineFeatureClass == null)
                {
                    return;
                }

                int osmLineIDFieldIndex = osmLineFeatureClass.FindField("OSMID");

                Dictionary<string, int> mainLineAttributeFieldIndices = new Dictionary<string, int>();
                foreach (string fieldName in OSMToolHelper.OSMSmallFeatureClassFields())
                {
                    int currentFieldIndex = osmLineFeatureClass.FindField(fieldName);

                    if (currentFieldIndex != -1)
                    {
                        mainLineAttributeFieldIndices.Add(fieldName, currentFieldIndex);
                    }
                }

                int tagCollectionPolylineFieldIndex = osmLineFeatureClass.FindField("osmTags");
                int osmSupportingElementPolylineFieldIndex = osmLineFeatureClass.FindField("osmSupportingElement");

                IGPParameter osmPolygonFeatureClassParameter = paramvalues.get_Element(out_osmPolygonsNumber) as IGPParameter;
                IGPValue osmPolygonFeatureClassGPValue = gpUtilities3.UnpackGPValue(osmPolygonFeatureClassParameter) as IGPValue;

                IName polygonWorkspaceName = gpUtilities3.CreateParentFromCatalogPath(osmPolygonFeatureClassGPValue.GetAsText());
                IWorkspace2 polygonFeatureWorkspace = polygonWorkspaceName.Open() as IWorkspace2;

                string[] polygonFCNameElements = osmPolygonFeatureClassGPValue.GetAsText().Split(System.IO.Path.DirectorySeparatorChar);

                IGPParameter tagPolygonCollectionParameter = paramvalues.get_Element(in_polygonFieldNamesNumber) as IGPParameter;
                IGPMultiValue tagPolygonCollectionGPValue = gpUtilities3.UnpackGPValue(tagPolygonCollectionParameter) as IGPMultiValue;

                List<String> polygonTagstoExtract = null;

                if (tagPolygonCollectionGPValue.Count > 0)
                {
                    polygonTagstoExtract = new List<string>();

                    for (int valueIndex = 0; valueIndex < tagPolygonCollectionGPValue.Count; valueIndex++)
                    {
                        string nameOfTag = tagPolygonCollectionGPValue.get_Value(valueIndex).GetAsText();

                        polygonTagstoExtract.Add(nameOfTag);
                    }
                }
                else
                {
                    polygonTagstoExtract = OSMToolHelper.OSMSmallFeatureClassFields();
                }

                // polygons
                try
                {
                    osmPolygonFeatureClass = osmToolHelper.CreateSmallPolygonFeatureClass(polygonFeatureWorkspace,
                        polygonFCNameElements[polygonFCNameElements.Length -1], storageKeyword, metadataAbstract,
                        metadataPurpose, polygonTagstoExtract);
                }
                catch (Exception ex)
                {
                    message.AddError(120037, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullpolygonfeatureclass"), ex.Message));
                    return;
                }

                if (osmPolygonFeatureClass == null)
                {
                    return;
                }

                int osmPolygonIDFieldIndex = osmPolygonFeatureClass.FindField("OSMID");

                Dictionary<string, int> mainPolygonAttributeFieldIndices = new Dictionary<string, int>();
                foreach (var fieldName in OSMToolHelper.OSMSmallFeatureClassFields())
                {
                    int currentFieldIndex = osmPolygonFeatureClass.FindField(fieldName);

                    if (currentFieldIndex != -1)
                    {
                        mainPolygonAttributeFieldIndices.Add(fieldName, currentFieldIndex);
                    }
                }

                int tagCollectionPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmTags");
                int osmSupportingElementPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmSupportingElement");

                ComReleaser.ReleaseCOMObject(osmPointFeatureClass);
                osmPointFeatureClass = null;

                ComReleaser.ReleaseCOMObject(osmLineFeatureClass);
                osmLineFeatureClass = null;

                ComReleaser.ReleaseCOMObject(osmPolygonFeatureClass);
                osmPolygonFeatureClass = null;

                List<string> nodeOSMFileNames = new List<string>(numberOfThreads);
                List<string> nodeGDBFileNames = new List<string>(numberOfThreads);

                List<string> wayOSMFileNames = new List<string>(numberOfThreads);
                List<string> wayGDBFileNames = new List<string>(numberOfThreads);

                List<string> relationOSMFileNames = new List<string>(numberOfThreads);
                List<string> relationGDBFileNames = new List<string>(numberOfThreads);

                if (TrackCancel.Continue() == false)
                {
                    return;
                }

                // split the original OSM xml file into smaller pieces for the python processes
                osmToolHelper.splitOSMFile(osmFileLocationString.GetAsText(), scratchWorkspaceFolder, nodeCapacity, wayCapacity, relationCapacity, numberOfThreads,
                    out nodeOSMFileNames, out nodeGDBFileNames, out wayOSMFileNames, out wayGDBFileNames, out relationOSMFileNames, out relationGDBFileNames);

                IGPParameter deleteSourceOSMFileParameter = paramvalues.get_Element(in_deleteOSMSourceFileNumber) as IGPParameter;
                IGPBoolean deleteSourceOSMFileGPValue = gpUtilities3.UnpackGPValue(deleteSourceOSMFileParameter) as IGPBoolean;

                if (deleteSourceOSMFileGPValue.Value)
                {
                    try
                    {
                        System.IO.File.Delete(osmFileLocationString.GetAsText());
                    }
                    catch (Exception ex)
                    {
                        message.AddWarning(ex.Message);
                    }
                }

                if (TrackCancel.Continue() == false)
                {
                    return;
                }

                if (nodeOSMFileNames.Count == 0)
                {
                    nodeOSMFileNames.Add(osmFileLocationString.GetAsText());
                    nodeGDBFileNames.Add(osmPointsFeatureClassGPValue.GetAsText());

                    wayOSMFileNames.Add(osmFileLocationString.GetAsText());
                    wayGDBFileNames.Add(osmLineFeatureClassGPValue.GetAsText());

                    relationOSMFileNames.Add(osmFileLocationString.GetAsText());
                    relationGDBFileNames.Add(osmPolygonFeatureClassGPValue.GetAsText());
                }
                else
                {
                    // for the nodes let's load one of the parts directly into the target file geodatabase
                    nodeGDBFileNames[0] = ((IWorkspace)pointFeatureWorkspace).PathName;
                }

                // define variables helping to invoke core tools for data management
                IGeoProcessorResult2 gpResults2 = null;
                IGeoProcessor2 geoProcessor = new GeoProcessorClass();

                IGPParameter deleteSupportingNodesParameter = paramvalues.get_Element(in_deleteSupportNodesNumber) as IGPParameter;
                IGPBoolean deleteSupportingNodesGPValue = gpUtilities3.UnpackGPValue(deleteSupportingNodesParameter) as IGPBoolean;

                #region load points
                osmToolHelper.loadOSMNodes(nodeOSMFileNames, nodeGDBFileNames, pointFCNameElements[pointFCNameElements.Length - 1], osmPointsFeatureClassGPValue.GetAsText(), pointTagstoExtract, deleteSupportingNodesGPValue.Value, ref message, ref TrackCancel);
                #endregion

                if (TrackCancel.Continue() == false)
                {
                    return;
                }

                #region load ways
                osmToolHelper.loadOSMWays(wayOSMFileNames, osmPointsFeatureClassGPValue.GetAsText(), wayGDBFileNames, lineFCNameElements[lineFCNameElements.Length - 1], polygonFCNameElements[polygonFCNameElements.Length - 1], lineTagstoExtract, polygonTagstoExtract, ref message,  ref TrackCancel);
                #endregion

                #region for local geodatabases enforce spatial integrity

                bool storedOriginalLocal = geoProcessor.AddOutputsToMap;
                geoProcessor.AddOutputsToMap = false;

                try
                {
                    osmLineFeatureClass = ((IFeatureWorkspace)lineFeatureWorkspace).OpenFeatureClass(lineFCNameElements[lineFCNameElements.Length - 1]);

                    if (osmLineFeatureClass != null)
                    {

                        if (((IDataset)osmLineFeatureClass).Workspace.Type == esriWorkspaceType.esriLocalDatabaseWorkspace)
                        {
                            gpUtilities3 = new GPUtilitiesClass() as IGPUtilities3;

                            IGPParameter outLinesParameter = paramvalues.get_Element(out_osmLinesNumber) as IGPParameter;
                            IGPValue lineFeatureClass = gpUtilities3.UnpackGPValue(outLinesParameter);

                            DataManagementTools.RepairGeometry repairlineGeometry = new DataManagementTools.RepairGeometry(osmLineFeatureClass);

                            IVariantArray repairGeometryParameterArray = new VarArrayClass();
                            repairGeometryParameterArray.Add(lineFeatureClass.GetAsText());
                            repairGeometryParameterArray.Add("DELETE_NULL");

                            gpResults2 = geoProcessor.Execute(repairlineGeometry.ToolName, repairGeometryParameterArray, TrackCancel) as IGeoProcessorResult2;
                            message.AddMessages(gpResults2.GetResultMessages());

                            ComReleaser.ReleaseCOMObject(gpUtilities3);
                        }
                    }
                }
                catch { }
                finally
                {
                    ComReleaser.ReleaseCOMObject(osmLineFeatureClass);
                }

                try
                {
                    osmPolygonFeatureClass = ((IFeatureWorkspace)polygonFeatureWorkspace).OpenFeatureClass(polygonFCNameElements[polygonFCNameElements.Length - 1]);

                    if (osmPolygonFeatureClass != null)
                    {
                        if (((IDataset)osmPolygonFeatureClass).Workspace.Type == esriWorkspaceType.esriLocalDatabaseWorkspace)
                        {
                            gpUtilities3 = new GPUtilitiesClass() as IGPUtilities3;

                            IGPParameter outPolygonParameter = paramvalues.get_Element(out_osmPolygonsNumber) as IGPParameter;
                            IGPValue polygonFeatureClass = gpUtilities3.UnpackGPValue(outPolygonParameter);

                            DataManagementTools.RepairGeometry repairpolygonGeometry = new DataManagementTools.RepairGeometry(osmPolygonFeatureClass);

                            IVariantArray repairGeometryParameterArray = new VarArrayClass();
                            repairGeometryParameterArray.Add(polygonFeatureClass.GetAsText());
                            repairGeometryParameterArray.Add("DELETE_NULL");

                            gpResults2 = geoProcessor.Execute(repairpolygonGeometry.ToolName, repairGeometryParameterArray, TrackCancel) as IGeoProcessorResult2;
                            message.AddMessages(gpResults2.GetResultMessages());

                            ComReleaser.ReleaseCOMObject(gpUtilities3);
                        }
                    }
                }
                catch { }
                finally
                {
                    ComReleaser.ReleaseCOMObject(osmPolygonFeatureClass);
                }

                geoProcessor.AddOutputsToMap = storedOriginalLocal;

                #endregion

                if (TrackCancel.Continue() == false)
                {
                    return;
                }

                #region load relations
                osmToolHelper.loadOSMRelations(relationOSMFileNames, osmLineFeatureClassGPValue.GetAsText(), osmPolygonFeatureClassGPValue.GetAsText(), relationGDBFileNames, lineTagstoExtract, polygonTagstoExtract, ref TrackCancel, ref message);
                #endregion

                // check for user interruption
                if (TrackCancel.Continue() == false)
                {
                    return;
                }

                #region for local geodatabases enforce spatial integrity
                //storedOriginalLocal = geoProcessor.AddOutputsToMap;
                //geoProcessor.AddOutputsToMap = false;

                //try
                //{
                //    osmLineFeatureClass = ((IFeatureWorkspace)lineFeatureWorkspace).OpenFeatureClass(lineFCNameElements[lineFCNameElements.Length - 1]);

                //    if (osmLineFeatureClass != null)
                //    {

                //        if (((IDataset)osmLineFeatureClass).Workspace.Type == esriWorkspaceType.esriLocalDatabaseWorkspace)
                //        {
                //            gpUtilities3 = new GPUtilitiesClass() as IGPUtilities3;

                //            IGPParameter outLinesParameter = paramvalues.get_Element(out_osmLinesNumber) as IGPParameter;
                //            IGPValue lineFeatureClass = gpUtilities3.UnpackGPValue(outLinesParameter);

                //            DataManagementTools.RepairGeometry repairlineGeometry = new DataManagementTools.RepairGeometry(osmLineFeatureClass);

                //            IVariantArray repairGeometryParameterArray = new VarArrayClass();
                //            repairGeometryParameterArray.Add(lineFeatureClass.GetAsText());
                //            repairGeometryParameterArray.Add("DELETE_NULL");

                //            gpResults2 = geoProcessor.Execute(repairlineGeometry.ToolName, repairGeometryParameterArray, TrackCancel) as IGeoProcessorResult2;
                //            message.AddMessages(gpResults2.GetResultMessages());

                //            ComReleaser.ReleaseCOMObject(gpUtilities3);
                //        }
                //    }
                //}
                //catch { }
                //finally
                //{
                //    ComReleaser.ReleaseCOMObject(osmLineFeatureClass);
                //}

                //try
                //{
                //    osmPolygonFeatureClass = ((IFeatureWorkspace)polygonFeatureWorkspace).OpenFeatureClass(polygonFCNameElements[polygonFCNameElements.Length - 1]);

                //    if (osmPolygonFeatureClass != null)
                //    {
                //        if (((IDataset)osmPolygonFeatureClass).Workspace.Type == esriWorkspaceType.esriLocalDatabaseWorkspace)
                //        {
                //            gpUtilities3 = new GPUtilitiesClass() as IGPUtilities3;

                //            IGPParameter outPolygonParameter = paramvalues.get_Element(out_osmPolygonsNumber) as IGPParameter;
                //            IGPValue polygonFeatureClass = gpUtilities3.UnpackGPValue(outPolygonParameter);

                //            DataManagementTools.RepairGeometry repairpolygonGeometry = new DataManagementTools.RepairGeometry(osmPolygonFeatureClass);

                //            IVariantArray repairGeometryParameterArray = new VarArrayClass();
                //            repairGeometryParameterArray.Add(polygonFeatureClass.GetAsText());
                //            repairGeometryParameterArray.Add("DELETE_NULL");

                //            gpResults2 = geoProcessor.Execute(repairpolygonGeometry.ToolName, repairGeometryParameterArray, TrackCancel) as IGeoProcessorResult2;
                //            message.AddMessages(gpResults2.GetResultMessages());

                //            ComReleaser.ReleaseCOMObject(gpUtilities3);
                //        }
                //    }
                //}
                //catch { }
                //finally
                //{
                //    ComReleaser.ReleaseCOMObject(osmPolygonFeatureClass);
                //}

                //geoProcessor.AddOutputsToMap = storedOriginalLocal;

                #endregion

                if (TrackCancel.Continue() == false)
                {
                    return;
                }

                if (deleteSupportingNodesGPValue.Value)
                {
                    message.AddMessage(String.Format(resourceManager.GetString("GPTools_OSMGPMultiLoader_remove_supportNodes")));

                    storedOriginalLocal = geoProcessor.AddOutputsToMap;
                    geoProcessor.AddOutputsToMap = false;

                    // create a layer file to select the points that have attributes
                    osmPointFeatureClass = ((IFeatureWorkspace)pointFeatureWorkspace).OpenFeatureClass(pointFCNameElements[pointFCNameElements.Length - 1]);

                    IVariantArray makeFeatureLayerParameterArray = new VarArrayClass();
                    makeFeatureLayerParameterArray.Add(osmPointsFeatureClassGPValue.GetAsText());

                    string tempLayerFile = System.IO.Path.GetTempFileName();
                    makeFeatureLayerParameterArray.Add(tempLayerFile);
                    makeFeatureLayerParameterArray.Add(String.Format("{0} = 'no'", osmPointFeatureClass.SqlIdentifier("osmSupportingElement")));

                    geoProcessor.Execute("MakeFeatureLayer_management", makeFeatureLayerParameterArray, TrackCancel);

                    // copy the features into its own feature class
                    IVariantArray copyFeatureParametersArray = new VarArrayClass();
                    copyFeatureParametersArray.Add(tempLayerFile);

                    string tempFeatureClass = String.Join("\\", new string[] {
                        ((IWorkspace)pointFeatureWorkspace).PathName, "t_" + pointFCNameElements[pointFCNameElements.Length - 1] });
                    copyFeatureParametersArray.Add(tempFeatureClass);

                    geoProcessor.Execute("CopyFeatures_management", copyFeatureParametersArray, TrackCancel);

                    // delete the temp file
                    System.IO.File.Delete(tempLayerFile);

                    // delete the original feature class
                    IVariantArray deleteParameterArray = new VarArrayClass();
                    deleteParameterArray.Add(osmPointsFeatureClassGPValue.GetAsText());

                    geoProcessor.Execute("Delete_management", deleteParameterArray, TrackCancel);

                    // rename the temp feature class back to the original
                    IVariantArray renameParameterArray = new VarArrayClass();
                    renameParameterArray.Add(tempFeatureClass);
                    renameParameterArray.Add(osmPointsFeatureClassGPValue.GetAsText());

                    geoProcessor.Execute("Rename_management", renameParameterArray, TrackCancel);

                    geoProcessor.AddOutputsToMap = storedOriginalLocal;

                    ComReleaser.ReleaseCOMObject(osmPointFeatureClass);
                    ComReleaser.ReleaseCOMObject(geoProcessor);
                }

                gpUtilities3 = new GPUtilitiesClass() as IGPUtilities3;

                // repackage the feature class into their respective gp values
                IGPParameter pointFeatureClassParameter = paramvalues.get_Element(out_osmPointsNumber) as IGPParameter;
                IGPValue pointFeatureClassGPValue = gpUtilities3.UnpackGPValue(pointFeatureClassParameter);
                gpUtilities3.PackGPValue(pointFeatureClassGPValue, pointFeatureClassParameter);

                IGPParameter lineFeatureClassParameter = paramvalues.get_Element(out_osmLinesNumber) as IGPParameter;
                IGPValue line1FeatureClassGPValue = gpUtilities3.UnpackGPValue(lineFeatureClassParameter);
                gpUtilities3.PackGPValue(line1FeatureClassGPValue, lineFeatureClassParameter);

                IGPParameter polygonFeatureClassParameter = paramvalues.get_Element(out_osmPolygonsNumber) as IGPParameter;
                IGPValue polygon1FeatureClassGPValue = gpUtilities3.UnpackGPValue(polygonFeatureClassParameter);
                gpUtilities3.PackGPValue(polygon1FeatureClassGPValue, polygonFeatureClassParameter);

                ComReleaser.ReleaseCOMObject(osmFileLocationString);

                gpUtilities3.ReleaseInternals();
                ComReleaser.ReleaseCOMObject(gpUtilities3);
            }
            catch (Exception ex)
            {
                message.AddError(120055, ex.Message);
                message.AddError(120055, ex.StackTrace);
            }
            finally
            {
                try
                {
                    osmToolHelper = null;

                    System.GC.Collect();
                    System.GC.WaitForPendingFinalizers();
                }
                catch (Exception ex)
                {
                    message.AddError(120056, ex.ToString());
                }
            }
        }
        public void Execute(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.esriSystem.ITrackCancel TrackCancel, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager envMgr, ESRI.ArcGIS.Geodatabase.IGPMessages message)
        {
            _message = message;

            // classes to carry out the basic client/server communication
            HttpWebResponse httpResponse = null;
            string changeSetID = "-1";
            IGPString baseURLGPString = new GPStringClass();
            ICursor searchCursor = null;

            IGPUtilities3 gpUtilities3 = new GPUtilitiesClass();

            if (TrackCancel == null)
            {
                TrackCancel = new CancelTrackerClass();
            }

            IGPParameter userNameParameter = paramvalues.get_Element(in_userNameNumber) as IGPParameter;
            IGPString userNameGPValue = gpUtilities3.UnpackGPValue(userNameParameter) as IGPString;

            IHttpBasicGPValue userCredentialGPValue = new HttpBasicGPValue();

            if (userNameGPValue != null)
            {
                userCredentialGPValue.UserName = userNameGPValue.Value;
            }
            else
            {
                return;
            }

            IGPParameter passwordParameter = paramvalues.get_Element(in_passwordNumber) as IGPParameter;
            IGPStringHidden passwordGPValue = gpUtilities3.UnpackGPValue(passwordParameter) as IGPStringHidden;

            if (passwordGPValue != null)
            {
                userCredentialGPValue.PassWord = passwordGPValue.Value;
            }
            else
            {
                return;
            }

            ITable revisionTable = null;
            int secondsToTimeout = 10;

            try
            {
                UpdateMessages(paramvalues, envMgr, message);

                if ((message.MaxSeverity == esriGPMessageSeverity.esriGPMessageSeverityAbort) ||
                    (message.MaxSeverity == esriGPMessageSeverity.esriGPMessageSeverityError))
                {
                    message.AddMessages(message);
                    return;
                }

                IGPParameter baseURLParameter = paramvalues.get_Element(in_uploadURLNumber) as IGPParameter;
                baseURLGPString = gpUtilities3.UnpackGPValue(baseURLParameter) as IGPString;

                IGPParameter commentParameter = paramvalues.get_Element(in_uploadCommentNumber) as IGPParameter;
                IGPString uploadCommentGPString = gpUtilities3.UnpackGPValue(commentParameter) as IGPString;

                ISpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceEnvironmentClass() as ISpatialReferenceFactory;
                m_wgs84 = spatialReferenceFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984) as ISpatialReference;

                System.Xml.Serialization.XmlSerializer serializer = null;
                serializer = new XmlSerializer(typeof(osm));

                osm createChangeSetOSM = new osm();
                string user_displayname = "";
                int userID = -1;

                // set the "default" value of the OSM server
                int maxElementsinChangeSet = 50000;

                HttpWebRequest httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/capabilities") as HttpWebRequest;
                httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
                SetBasicAuthHeader(httpClient, userCredentialGPValue.EncodedUserNamePassWord);
                httpClient.Timeout = secondsToTimeout * 1000;

                createChangeSetOSM.generator = m_Generator;
                createChangeSetOSM.version = "0.6";

                changeset createChangeSet = new changeset();
                createChangeSet.id = "0";
                createChangeSet.open = changesetOpen.@false;

                List<tag> changeSetTags = new List<tag>();

                tag createdByTag = new tag();
                createdByTag.k = "created_by";
                createdByTag.v = "ArcGIS Editor for OpenStreetMap";
                changeSetTags.Add(createdByTag);

                tag commentTag = new tag();
                commentTag.k = "comment";
                commentTag.v = uploadCommentGPString.Value;
                changeSetTags.Add(commentTag);

                createChangeSet.tag = changeSetTags.ToArray();
                createChangeSetOSM.Items = new object[] { createChangeSet };

                api apiCapabilities = null;

                // retrieve some server settings

                try
                {
                    httpResponse = httpClient.GetResponse() as HttpWebResponse;

                    osm osmCapabilities = null;

                    Stream stream = httpResponse.GetResponseStream();

                    XmlTextReader xmlReader = new XmlTextReader(stream);
                    osmCapabilities = serializer.Deserialize(xmlReader) as osm;
                    xmlReader.Close();

                    apiCapabilities = osmCapabilities.Items[0] as api;
                    httpResponse.Close();
                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine(ex.Message);
                    message.AddWarning(ex.Message);
                }

                if (apiCapabilities != null)
                {
                    // read the timeout parameter
                    secondsToTimeout = Convert.ToInt32(apiCapabilities.timeout.seconds);
                    httpClient.Timeout = secondsToTimeout * 1000;

                    // update the setting of allowed features per changeset from the actual capabilities response
                    maxElementsinChangeSet = Convert.ToInt32(apiCapabilities.changesets.maximum_elements);
                }

                // retrieve some information about the user
                try
                {
                    httpClient = null;
                    httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/user/details") as HttpWebRequest;
                    httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
                    SetBasicAuthHeader(httpClient, userCredentialGPValue.EncodedUserNamePassWord);

                    httpResponse = httpClient.GetResponse() as HttpWebResponse;

                    osm osmCapabilities = null;

                    Stream stream = httpResponse.GetResponseStream();

                    XmlTextReader xmlReader = new XmlTextReader(stream);
                    osmCapabilities = serializer.Deserialize(xmlReader) as osm;
                    xmlReader.Close();
                    user userInformation = osmCapabilities.Items[0] as user;

                    if (userInformation != null)
                    {
                        user_displayname = userInformation.display_name;
                        userID = Convert.ToInt32(userInformation.id);
                    }
                }

                catch (ArgumentOutOfRangeException ex)
                {
                    message.AddError(120044, ex.Message);
                    return;
                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine(ex.Message);
                    message.AddWarning(ex.Message);
                }

                IGPParameter revisionTableParameter = paramvalues.get_Element(in_changesTablesNumber) as IGPParameter;
                int featureUpdateCounter = 0;

                IQueryFilter revisionTableQueryFilter = null;

                try
                {
                    gpUtilities3.DecodeTableView(gpUtilities3.UnpackGPValue(revisionTableParameter), out revisionTable, out revisionTableQueryFilter);
                }
                catch
                {
                    message.AddError(120045,resourceManager.GetString("GPTools_OSMGPUpload_missingRevisionTable"));
                    return;
                }

                int revChangeSetIDFieldIndex = revisionTable.Fields.FindField("osmchangeset");
                int revActionFieldIndex = revisionTable.Fields.FindField("osmaction");
                int revElementTypeFieldIndex = revisionTable.Fields.FindField("osmelementtype");
                int revVersionFieldIndex = revisionTable.Fields.FindField("osmversion");
                int revFCNameFieldIndex = revisionTable.Fields.FindField("sourcefcname");
                int revOldIDFieldIndex = revisionTable.Fields.FindField("osmoldid");
                int revNewIDFieldIndex = revisionTable.Fields.FindField("osmnewid");
                int revStatusFieldIndex = revisionTable.Fields.FindField("osmstatus");
                int revStatusCodeFieldIndex = revisionTable.Fields.FindField("osmstatuscode");
                int revErrorMessageFieldIndex = revisionTable.Fields.FindField("osmerrormessage");
                int revLongitudeFieldIndex = revisionTable.Fields.FindField("osmlon");
                int revLatitudeFieldIndex = revisionTable.Fields.FindField("osmlat");

                // let's find all the rows that have a different status than OK - meaning success
                IQueryFilter queryFilter = new QueryFilterClass();

                searchCursor = revisionTable.Search(queryFilter, false);
                IRow searchRowToUpdate = null;

                // lookup table to adjust all osm ID references if there are know entities
                Dictionary<long, long> nodeosmIDLookup = new Dictionary<long, long>();
                Dictionary<long, long> wayosmIDLookup = new Dictionary<long, long>();
                Dictionary<long, long> relationosmIDLookup = new Dictionary<long, long>();

                // let's pre-populate the lookup IDs with already know entities
                // it is necessary if the revision table is used more than once and in different sessions
                queryFilter.WhereClause = "NOT " + revisionTable.SqlIdentifier("osmnewid") + " IS NULL";

                using (ComReleaser comReleaser = new ComReleaser())
                {
                    ICursor searchIDCursor = revisionTable.Search(queryFilter, false);
                    comReleaser.ManageLifetime(searchIDCursor);

                    IRow searchRow = searchIDCursor.NextRow();
                    comReleaser.ManageLifetime(searchRow);

                    while (searchRow != null)
                    {
                        if (revOldIDFieldIndex > -1 && revNewIDFieldIndex > -1)
                        {
                            string elementType = Convert.ToString(searchRow.get_Value(revElementTypeFieldIndex));

                            switch (elementType)
                            {
                                case "node":
                                    if (nodeosmIDLookup.ContainsKey(Convert.ToInt64(searchRow.get_Value(revOldIDFieldIndex))) == false)
                                    {
                                        nodeosmIDLookup.Add(Convert.ToInt64(searchRow.get_Value(revOldIDFieldIndex)), Convert.ToInt64(searchRow.get_Value(revNewIDFieldIndex)));
                                    }
                                    break;
                                case "way":
                                    if (wayosmIDLookup.ContainsKey(Convert.ToInt64(searchRow.get_Value(revOldIDFieldIndex))) == false)
                                    {
                                        wayosmIDLookup.Add(Convert.ToInt64(searchRow.get_Value(revOldIDFieldIndex)), Convert.ToInt64(searchRow.get_Value(revNewIDFieldIndex)));
                                    }
                                    break;
                                case "relation":
                                    if (relationosmIDLookup.ContainsKey(Convert.ToInt64(searchRow.get_Value(revOldIDFieldIndex))) == false)
                                    {
                                        relationosmIDLookup.Add(Convert.ToInt64(searchRow.get_Value(revOldIDFieldIndex)), Convert.ToInt64(searchRow.get_Value(revNewIDFieldIndex)));
                                    }
                                    break;
                                default:
                                    break;
                            }
                        }
                        searchRow = searchIDCursor.NextRow();
                    }
                }

                IFeatureClass pointFeatureClass = null;
                int pointOSMIDFieldIndex = -1;
                IFeatureClass lineFeatureClass = null;
                IFeatureClass polygonFeatureClass = null;
                ITable relationTable = null;

                int osmDelimiterPosition = ((IDataset)revisionTable).Name.IndexOf("_osm_");
                string osmBaseName = ((IDataset)revisionTable).Name.Substring(0, osmDelimiterPosition);

                IFeatureWorkspace osmFeatureWorkspace = ((IDataset)revisionTable).Workspace as IFeatureWorkspace;

                if (osmFeatureWorkspace != null)
                {
                    pointFeatureClass = osmFeatureWorkspace.OpenFeatureClass(osmBaseName + "_osm_pt");
                    pointOSMIDFieldIndex = pointFeatureClass.FindField("OSMID");
                    lineFeatureClass = osmFeatureWorkspace.OpenFeatureClass(osmBaseName + "_osm_ln");
                    polygonFeatureClass = osmFeatureWorkspace.OpenFeatureClass(osmBaseName + "_osm_ply");
                    relationTable = osmFeatureWorkspace.OpenTable(osmBaseName + "_osm_relation");
                }

                // determine version of extension
                int internalExtensionVersion = pointFeatureClass.OSMExtensionVersion();

                string sData = OsmRest.SerializeUtils.CreateXmlSerializable(createChangeSetOSM, serializer, Encoding.ASCII, "text/xml");
                HttpWebRequest httpClient2 = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/changeset/create") as HttpWebRequest;
                httpClient2.Method = "PUT";
                httpClient2 = OSMGPDownload.AssignProxyandCredentials(httpClient2);
                SetBasicAuthHeader(httpClient2, userCredentialGPValue.EncodedUserNamePassWord);
                httpClient2.Timeout = secondsToTimeout * 1000;

                try
                {
                    Stream requestStream = httpClient2.GetRequestStream();
                    StreamWriter mywriter = new StreamWriter(requestStream);

                    mywriter.Write(sData);
                    mywriter.Close();

                    WebResponse clientResponse = httpClient2.GetResponse();
                    Stream readStream = clientResponse.GetResponseStream();
                    StreamReader streamReader = new StreamReader(readStream);
                    changeSetID = streamReader.ReadToEnd();
                    streamReader.Close();

                    message.AddMessage(String.Format(resourceManager.GetString("GPTools_OSMGPUpload_openChangeSet"), changeSetID));

                }
                catch (Exception ex)
                {
                    if (httpResponse != null)
                    {
                        if (httpResponse.StatusCode != System.Net.HttpStatusCode.OK)
                        {
                            foreach (var errorItem in httpResponse.Headers.GetValues("Error"))
                            {
                                message.AddError(120009, errorItem);
                            }

                            message.AddError(120009, httpResponse.StatusCode.ToString());
                            message.AddError(120009, ex.Message);
                        }
                    }
                    else
                    {
                        message.AddError(120047, ex.Message);
                    }

                    return;
                }

                IGPParameter uploadFormatParameter = paramvalues.get_Element(in_uploadFormatNumber) as IGPParameter;
                IGPBoolean useOSMChangeFormatGPValue = gpUtilities3.UnpackGPValue(uploadFormatParameter) as IGPBoolean;

                // Al Hack
                if (useOSMChangeFormatGPValue == null)
                {
                    useOSMChangeFormatGPValue = new GPBoolean();
                    useOSMChangeFormatGPValue.Value = false;
                }

                SQLFormatter sqlFormatter = new SQLFormatter(revisionTable);

                if (useOSMChangeFormatGPValue.Value == true)
                {
                    #region osmchange upload format

                    osmChange osmChangeDocument = new osmChange();
                    osmChangeDocument.generator = m_Generator;
                    osmChangeDocument.version = "0.6";

                    // xml elements to describe the changeset
                    create uploadCreates = null;
                    modify uploadModify = null;
                    delete uploadDelete = null;

                    // helper classes to keep track of elements entered into a changeset
                    List<object> listOfCreates = null;
                    List<object> listOfModifies = null;
                    List<object> listOfDeletes = null;

                    List<object> changeSetItems = new List<object>();

                    #region upload create actions
                    // loop through creates
                    queryFilter.WhereClause = "(" + sqlFormatter.SqlIdentifier("osmstatuscode") + " <> 200 OR "
                        + sqlFormatter.SqlIdentifier("osmstatus") + " IS NULL) AND "
                        + sqlFormatter.SqlIdentifier("osmaction") + " = 'create'";

                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        searchCursor = revisionTable.Search(queryFilter, false);
                        comReleaser.ManageLifetime(searchCursor);

                        searchRowToUpdate = searchCursor.NextRow();
                        comReleaser.ManageLifetime(searchRowToUpdate);

                        // if we have at least one entry with a create action, then add the 'create' element to the changeset representation
                        if (searchRowToUpdate != null)
                        {
                            uploadCreates = new create();
                            listOfCreates = new List<object>();
                        }

                        while (searchRowToUpdate != null)
                        {
                            try
                            {
                                if (TrackCancel.Continue() == false)
                                {
                                    closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                    return;
                                }

                                string action = String.Empty;
                                if (revActionFieldIndex != -1)
                                {
                                    action = searchRowToUpdate.get_Value(revActionFieldIndex) as string;
                                }
                                string elementType = String.Empty;
                                if (revElementTypeFieldIndex != -1)
                                {
                                    elementType = searchRowToUpdate.get_Value(revElementTypeFieldIndex) as string;
                                }

                                string sourceFCName = String.Empty;
                                if (revFCNameFieldIndex != -1)
                                {
                                    sourceFCName = searchRowToUpdate.get_Value(revFCNameFieldIndex) as string;
                                }

                                long osmOldID = -1;
                                if (revOldIDFieldIndex != -1)
                                {
                                    osmOldID = Convert.ToInt64(searchRowToUpdate.get_Value(revOldIDFieldIndex));
                                }

                                // if the overall number of uploaded elements is too big for a single changeset we do need to split it up
                                // into multiple sets
                                if (featureUpdateCounter > 0 & (featureUpdateCounter % maxElementsinChangeSet) == 0)
                                {
                                    // add any outstanding creations to the changeset items
                                    if (listOfCreates != null && uploadCreates != null)
                                    {
                                        uploadCreates.Items = listOfCreates.ToArray();
                                        // in case there are any creates let's add them to the changeset document
                                        changeSetItems.Add(uploadCreates);
                                    }

                                    // add all the changeset items to the changeset document
                                    osmChangeDocument.Items = changeSetItems.ToArray();

                                    // submit changeset
                                    try
                                    {
                                        httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/changeset/" + changeSetID + "/upload") as HttpWebRequest;
                                        httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
                                        httpClient.Method = "POST";
                                        SetBasicAuthHeader(httpClient, userCredentialGPValue.EncodedUserNamePassWord);
                                        httpClient.Timeout = secondsToTimeout * 1000;

                                        string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(osmChangeDocument, null, Encoding.UTF8, "text/xml");

                                        message.AddMessage(String.Format(resourceManager.GetString("GPTools_OSMGPUpload_featureSubmit"), featureUpdateCounter));

                                        OsmRest.HttpUtils.Post(httpClient, sContent);

                                        httpResponse = httpClient.GetResponse() as HttpWebResponse;
                                        diffResult diffResultResonse = OsmRest.HttpUtils.GetResponse(httpResponse);

                                        // parse changes locally and update local data sources
                                        if (diffResultResonse != null)
                                        {
                                            ParseResultDiff(diffResultResonse, revisionTable, pointFeatureClass, lineFeatureClass, polygonFeatureClass, relationTable, user_displayname, userID, changeSetID, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                        }

                                    }
                                    catch (Exception ex)
                                    {
                                        closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                        message.AddError(120009, ex.Message);

                                        if (ex is WebException)
                                        {
                                            WebException webException = ex as WebException;
                                            string serverErrorMessage = webException.Response.Headers["Error"];
                                            if (!String.IsNullOrEmpty(serverErrorMessage))
                                            {
                                                message.AddError(120009, serverErrorMessage);
                                            }
                                        }

                                        if (httpResponse != null)
                                        {
                                            httpResponse.Close();
                                        }
                                        return;
                                    }
                                    finally
                                    {
                                        // reset the list and containers of modifications for the next batch
                                        listOfCreates.Clear();
                                        changeSetItems.Clear();

                                        if (httpResponse != null)
                                        {
                                            httpResponse.Close();
                                        }
                                    }

                                    if (TrackCancel.Continue() == false)
                                    {
                                        closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                        return;
                                    }

                                    CreateNextChangeSet(message, createChangeSetOSM, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, ref changeSetID, baseURLGPString, ref featureUpdateCounter);
                                }

                                switch (elementType)
                                {
                                    case "node":
                                        node createNode = CreateNodeRepresentation(pointFeatureClass, action, osmOldID, changeSetID, 1, null, internalExtensionVersion);
                                        listOfCreates.Add(createNode);
                                        break;
                                    case "way":
                                        way createWay = null;
                                        if (sourceFCName.Contains("_osm_ln"))
                                        {
                                            createWay = CreateWayRepresentation(lineFeatureClass, action, osmOldID, changeSetID, 1, nodeosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);
                                        }
                                        else if (sourceFCName.Contains("_osm_ply"))
                                        {
                                            createWay = CreateWayRepresentation(polygonFeatureClass, action, osmOldID, changeSetID, 1, nodeosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);
                                        }
                                        listOfCreates.Add(createWay);
                                        break;
                                    case "relation":
                                        relation createRelation = null;
                                        if (sourceFCName.Contains("_osm_ln"))
                                        {
                                            createRelation = CreateRelationRepresentation((ITable)lineFeatureClass, action, osmOldID, changeSetID, 1, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                        }
                                        else if (sourceFCName.Contains("_osm_ply"))
                                        {
                                            createRelation = CreateRelationRepresentation((ITable)polygonFeatureClass, action, osmOldID, changeSetID, 1, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                        }
                                        else if (sourceFCName.Contains("_osm_relation"))
                                        {
                                            createRelation = CreateRelationRepresentation(relationTable, action, osmOldID, changeSetID, 1, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                        }
                                        listOfCreates.Add(createRelation);
                                        break;
                                    default:
                                        break;
                                }
                                // increment the counter keeping track of the submitted changes
                                featureUpdateCounter = featureUpdateCounter + 1;
                            }
                            catch
                            {
                            }
                            searchRowToUpdate = searchCursor.NextRow();
                        }

                        if (listOfCreates != null && uploadCreates != null)
                        {
                            // sort the list of created elements in the order of nodes, ways, relations
                            listOfCreates.Sort(new OSMElementComparer());

                            uploadCreates.Items = listOfCreates.ToArray();
                            // in case there are any creates let's add them to the changeset document
                            changeSetItems.Add(uploadCreates);
                        }
                    }
                    #endregion

                    #region upload modify actions
                    // loop through modifies
                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        queryFilter.WhereClause = "(" +
                            sqlFormatter.SqlIdentifier("osmstatuscode") + " <> 200 OR "
                            + sqlFormatter.SqlIdentifier("osmstatus") + " IS NULL) AND "
                            + sqlFormatter.SqlIdentifier("osmaction") + " = 'modify'";

                        searchCursor = revisionTable.Search(queryFilter, false);
                        comReleaser.ManageLifetime(searchCursor);

                        searchRowToUpdate = searchCursor.NextRow();

                        if (searchRowToUpdate != null)
                        {
                            uploadModify = new modify();
                            listOfModifies = new List<object>();
                        }

                        while (searchRowToUpdate != null)
                        {
                            if (TrackCancel.Continue() == false)
                            {
                                closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                return;
                            }

                            try
                            {
                                string action = String.Empty;
                                if (revActionFieldIndex != -1)
                                {
                                    action = searchRowToUpdate.get_Value(revActionFieldIndex) as string;
                                }

                                string elementType = String.Empty;
                                if (revElementTypeFieldIndex != -1)
                                {
                                    elementType = searchRowToUpdate.get_Value(revElementTypeFieldIndex) as string;
                                }

                                string sourceFCName = String.Empty;
                                if (revFCNameFieldIndex != -1)
                                {
                                    sourceFCName = searchRowToUpdate.get_Value(revFCNameFieldIndex) as string;
                                }

                                long osmOldID = -1;
                                if (revOldIDFieldIndex != -1)
                                {
                                    osmOldID = Convert.ToInt64(searchRowToUpdate.get_Value(revOldIDFieldIndex));
                                }

                                // if the overall number of uploaded elements is too big for a single changeset we do need to split it up
                                long modifyID = -1;
                                if (revNewIDFieldIndex != -1)
                                {
                                    object osmIDValue = searchRowToUpdate.get_Value(revNewIDFieldIndex);

                                    if (osmIDValue == DBNull.Value)
                                    {
                                        osmIDValue = osmOldID;
                                    }

                                    try
                                    {
                                        modifyID = Convert.ToInt64(osmIDValue);
                                    }
                                    catch { }

                                    // modifies should only happen to osm IDs > 0
                                    // if that condition is not met let's skip this feature as something is not right
                                    if (modifyID < 0)
                                    {
                                        searchRowToUpdate = searchCursor.NextRow();
                                        continue;
                                    }
                                }

                                int osmVersion = -1;
                                if (revVersionFieldIndex != -1)
                                {
                                    osmVersion = Convert.ToInt32(searchRowToUpdate.get_Value(revVersionFieldIndex));
                                }

                                // into multiple sets
                                if ((featureUpdateCounter % maxElementsinChangeSet) == 0)
                                {
                                    // add any outstanding modifications to the changeset items
                                    if (listOfModifies != null && uploadModify != null)
                                    {
                                        uploadModify.Items = listOfModifies.ToArray();
                                        // in case there are any creates let's add them to the changeset document
                                        changeSetItems.Add(uploadModify);
                                    }

                                    // add all the changeset items to the changeset document
                                    osmChangeDocument.Items = changeSetItems.ToArray();

                                    // submit changeset
                                    try
                                    {
                                        httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/changeset/" + changeSetID + "/upload") as HttpWebRequest;
                                        httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
                                        httpClient.Method = "POST";
                                        SetBasicAuthHeader(httpClient, userCredentialGPValue.EncodedUserNamePassWord);
                                        httpClient.Timeout = secondsToTimeout * 1000;

                                        string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(osmChangeDocument, null, Encoding.UTF8, "text/xml");
                                        OsmRest.HttpUtils.Post(httpClient, sContent);

                                        httpResponse = httpClient.GetResponse() as HttpWebResponse;
                                        diffResult diffResultResonse = OsmRest.HttpUtils.GetResponse(httpResponse);

                                        // parse changes locally and update local data sources
                                        if (diffResultResonse != null)
                                        {
                                            ParseResultDiff(diffResultResonse, revisionTable, pointFeatureClass, lineFeatureClass, polygonFeatureClass, relationTable, user_displayname, userID, changeSetID, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                        }

                                    }
                                    catch (Exception ex)
                                    {
                                        closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                        message.AddError(120009, ex.Message);

                                        if (ex is WebException)
                                        {
                                            WebException webException = ex as WebException;
                                            string serverErrorMessage = webException.Response.Headers["Error"];
                                            if (!String.IsNullOrEmpty(serverErrorMessage))
                                            {
                                                message.AddError(120009, serverErrorMessage);
                                            }

                                            if (httpResponse != null)
                                            {
                                                httpResponse.Close();
                                            }
                                        }
                                        return;
                                    }
                                    finally
                                    {
                                        // reset the list and containers of modifications for the next batch
                                        listOfModifies.Clear();
                                        changeSetItems.Clear();

                                        if (httpResponse != null)
                                        {
                                            httpResponse.Close();
                                        }
                                    }

                                    if (TrackCancel.Continue() == false)
                                    {
                                        closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                        return;
                                    }

                                    CreateNextChangeSet(message, createChangeSetOSM, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, ref changeSetID, baseURLGPString, ref featureUpdateCounter);
                                }

                                switch (elementType)
                                {
                                    case "node":
                                        node updateNode = CreateNodeRepresentation(pointFeatureClass, action, modifyID, changeSetID, osmVersion, null, internalExtensionVersion);
                                        listOfModifies.Add(updateNode);
                                        break;
                                    case "way":
                                        way updateWay = null;
                                        if (sourceFCName.Contains("_osm_ln"))
                                        {
                                            updateWay = CreateWayRepresentation(lineFeatureClass, action, modifyID, changeSetID, osmVersion, nodeosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);
                                        }
                                        else if (sourceFCName.Contains("_osm_ply"))
                                        {
                                            updateWay = CreateWayRepresentation(polygonFeatureClass, action, modifyID, changeSetID, osmVersion, nodeosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);
                                        }
                                        listOfModifies.Add(updateWay);
                                        break;
                                    case "relation":
                                        relation updateRelation = null;
                                        if (sourceFCName.Contains("_osm_ln"))
                                        {
                                            updateRelation = CreateRelationRepresentation((ITable)lineFeatureClass, action, modifyID, changeSetID, osmVersion, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                        }
                                        else if (sourceFCName.Contains("_osm_ply"))
                                        {
                                            updateRelation = CreateRelationRepresentation((ITable)polygonFeatureClass, action, modifyID, changeSetID, osmVersion, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                        }
                                        else if (sourceFCName.Contains("_osm_relation"))
                                        {
                                            updateRelation = CreateRelationRepresentation(relationTable, action, modifyID, changeSetID, osmVersion, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                        }
                                        listOfModifies.Add(updateRelation);
                                        break;
                                    default:
                                        break;
                                }

                                // track the update/sync requests against the server
                                featureUpdateCounter = featureUpdateCounter + 1;
                            }
                            catch
                            {
                            }

                            searchRowToUpdate = searchCursor.NextRow();
                        }

                        if (listOfModifies != null && uploadModify != null)
                        {
                            uploadModify.Items = listOfModifies.ToArray();
                            // in case there are any creates let's add them to the changeset document
                            changeSetItems.Add(uploadModify);
                        }

                    }
                    #endregion

                    #region upload delete actions
                    // loop through deletes in "reverse" - relation, then way, then node
                    string[] elementTypes = new string[] { "relation", "way", "node" };

                    foreach (string osmElementType in elementTypes)
                    {
                        using (ComReleaser comReleaser = new ComReleaser())
                        {
                            queryFilter.WhereClause = "(" +  sqlFormatter.SqlIdentifier("osmstatuscode") + " <> 200 OR "
                                + sqlFormatter.SqlIdentifier("osmstatus") + " IS NULL) AND "
                                + sqlFormatter.SqlIdentifier("osmaction") + " = 'delete' AND "
                                + sqlFormatter.SqlIdentifier("osmelementtype") + " = '" + osmElementType + "'";

                            searchCursor = revisionTable.Search(queryFilter, false);
                            comReleaser.ManageLifetime(searchCursor);

                            searchRowToUpdate = searchCursor.NextRow();

                            if (searchRowToUpdate != null)
                            {
                                if (TrackCancel.Continue() == false)
                                {
                                    closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                    return;
                                }

                                if (uploadDelete == null)
                                {
                                    uploadDelete = new delete();
                                    listOfDeletes = new List<object>();
                                }
                            }

                            while (searchRowToUpdate != null)
                            {
                                try
                                {
                                    string action = String.Empty;
                                    if (revActionFieldIndex != -1)
                                    {
                                        action = searchRowToUpdate.get_Value(revActionFieldIndex) as string;
                                    }

                                    string elementType = String.Empty;
                                    if (revElementTypeFieldIndex != -1)
                                    {
                                        elementType = searchRowToUpdate.get_Value(revElementTypeFieldIndex) as string;
                                    }

                                    string sourceFCName = String.Empty;
                                    if (revFCNameFieldIndex != -1)
                                    {
                                        sourceFCName = searchRowToUpdate.get_Value(revFCNameFieldIndex) as string;
                                    }

                                    long osmOldID = -1;
                                    if (revOldIDFieldIndex != -1)
                                    {
                                        osmOldID = Convert.ToInt64(searchRowToUpdate.get_Value(revOldIDFieldIndex));
                                    }

                                    int osmVersion = -1;
                                    if (revVersionFieldIndex != -1)
                                    {
                                        osmVersion = Convert.ToInt32(searchRowToUpdate.get_Value(revVersionFieldIndex));
                                    }

                                    // into multiple sets
                                    if ((featureUpdateCounter % maxElementsinChangeSet) == 0)
                                    {
                                        // add any outstanding creations to the changeset items
                                        if (listOfDeletes != null && uploadDelete != null)
                                        {
                                            uploadDelete.Items = listOfDeletes.ToArray();
                                            // in case there are any creates let's add them to the changeset document
                                            changeSetItems.Add(uploadDelete);
                                        }

                                        // add all the changeset items to the changeset document
                                        osmChangeDocument.Items = changeSetItems.ToArray();

                                        // submit changeset
                                        try
                                        {
                                            httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/changeset/" + changeSetID + "/upload") as HttpWebRequest;
                                            httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
                                            httpClient.Method = "POST";
                                            SetBasicAuthHeader(httpClient, userCredentialGPValue.EncodedUserNamePassWord);
                                            httpClient.Timeout = secondsToTimeout * 1000;

                                            string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(osmChangeDocument, null, Encoding.UTF8, "text/xml");
                                            OsmRest.HttpUtils.Post(httpClient, sContent);

                                            httpResponse = httpClient.GetResponse() as HttpWebResponse;
                                            diffResult diffResultResonse = OsmRest.HttpUtils.GetResponse(httpResponse);

                                            // parse changes locally and update local data sources
                                            if (diffResultResonse != null)
                                            {
                                                ParseResultDiff(diffResultResonse, revisionTable, pointFeatureClass, lineFeatureClass, polygonFeatureClass, relationTable, user_displayname, userID, changeSetID, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                            }

                                        }
                                        catch (Exception ex)
                                        {
                                            closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                            message.AddError(120009, ex.Message);

                                            if (ex is WebException)
                                            {
                                                WebException webException = ex as WebException;
                                                string serverErrorMessage = webException.Response.Headers["Error"];
                                                if (!String.IsNullOrEmpty(serverErrorMessage))
                                                {
                                                    message.AddError(120009, serverErrorMessage);
                                                }
                                            }

                                            if (httpResponse != null)
                                            {
                                                httpResponse.Close();
                                            }

                                            return;
                                        }
                                        finally
                                        {
                                            // reset the list and containers of modifications for the next batch
                                            listOfDeletes.Clear();
                                            changeSetItems.Clear();

                                            if (httpResponse != null)
                                            {
                                                httpResponse.Close();
                                            }
                                        }

                                        if (TrackCancel.Continue() == false)
                                        {
                                            closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                            return;
                                        }

                                        CreateNextChangeSet(message, createChangeSetOSM, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, ref changeSetID, baseURLGPString, ref featureUpdateCounter);
                                    }

                                    switch (elementType)
                                    {
                                        case "node":
                                            IPoint deletePoint = null;
                                            if (revLongitudeFieldIndex != -1 && revLatitudeFieldIndex != -1)
                                            {
                                                try
                                                {
                                                    // let's reconstruct the delete point
                                                    deletePoint = new PointClass();
                                                    deletePoint.X = Convert.ToDouble(searchRowToUpdate.get_Value(revLongitudeFieldIndex));
                                                    deletePoint.Y = Convert.ToDouble(searchRowToUpdate.get_Value(revLatitudeFieldIndex));
                                                    deletePoint.SpatialReference = m_wgs84;
                                                }
                                                catch (Exception ex)
                                                {
                                                    message.AddWarning(ex.Message);
                                                }

                                                if (deletePoint == null)
                                                {
                                                    // inform the about the issue - no successful creation of point and continue on to the next delete instruction
                                                    // in the revision table
                                                    message.AddWarning(resourceManager.GetString("GPTools_OSMGPUpload_invalidPoint"));
                                                    searchRowToUpdate = searchCursor.NextRow();
                                                    continue;
                                                }
                                            }

                                            node deleteNode = CreateNodeRepresentation(pointFeatureClass, action, osmOldID, changeSetID, osmVersion, deletePoint, internalExtensionVersion);
                                            listOfDeletes.Add(deleteNode);
                                            break;
                                        case "way":
                                            way deleteWay = null;
                                            if (sourceFCName.Contains("_osm_ln"))
                                            {
                                                deleteWay = CreateWayRepresentation(lineFeatureClass, action, osmOldID, changeSetID, osmVersion, nodeosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);
                                            }
                                            else if (sourceFCName.Contains("_osm_ply"))
                                            {
                                                deleteWay = CreateWayRepresentation(polygonFeatureClass, action, osmOldID, changeSetID, osmVersion, nodeosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);
                                            }
                                            listOfDeletes.Add(deleteWay);
                                            break;
                                        case "relation":
                                            relation deleteRelation = null;
                                            if (sourceFCName.Contains("_osm_ln"))
                                            {
                                                deleteRelation = CreateRelationRepresentation((ITable)lineFeatureClass, action, osmOldID, changeSetID, osmVersion, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                            }
                                            else if (sourceFCName.Contains("_osm_ply"))
                                            {
                                                deleteRelation = CreateRelationRepresentation((ITable)polygonFeatureClass, action, osmOldID, changeSetID, osmVersion, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                            }
                                            else if (sourceFCName.Contains("_osm_relation"))
                                            {
                                                deleteRelation = CreateRelationRepresentation(relationTable, action, osmOldID, changeSetID, osmVersion, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                            }
                                            listOfDeletes.Add(deleteRelation);
                                            break;
                                        default:
                                            break;
                                    }

                                    // track the update/sync requests against the server
                                    featureUpdateCounter = featureUpdateCounter + 1;
                                }
                                catch
                                {
                                }

                                searchRowToUpdate = searchCursor.NextRow();
                            }

                        }
                    }

                    if (listOfDeletes != null && uploadDelete != null)
                    {
                        uploadDelete.Items = listOfDeletes.ToArray();
                        // in case there are any creates let's add them to the changeset document
                        changeSetItems.Add(uploadDelete);
                    }
                    #endregion

                    if (TrackCancel.Continue() == false)
                    {
                        closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                        return;
                    }

                    // add all the changeset items to the changeset document
                    osmChangeDocument.Items = changeSetItems.ToArray();

                    // submit changeset
                    try
                    {
                        httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/changeset/" + changeSetID + "/upload") as HttpWebRequest;
                        httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
                        httpClient.Method = "POST";
                        SetBasicAuthHeader(httpClient, userCredentialGPValue.EncodedUserNamePassWord);
                        httpClient.Timeout = secondsToTimeout * 1000;

                        message.AddMessage(String.Format(resourceManager.GetString("GPTools_OSMGPUpload_featureSubmit"), featureUpdateCounter));

                        string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(osmChangeDocument, null, Encoding.UTF8, "text/xml");
                        OsmRest.HttpUtils.Post(httpClient, sContent);

                        httpResponse = httpClient.GetResponse() as HttpWebResponse;

                        //Exception with an error HTTP 400
                        diffResult diffResultResonse = OsmRest.HttpUtils.GetResponse(httpResponse);

                        message.AddMessage(resourceManager.GetString("GPTools_OSMGPUpload_updatelocalData"));

                        // parse changes locally and update local data sources
                        if (diffResultResonse != null)
                        {
                            ParseResultDiff(diffResultResonse, revisionTable, pointFeatureClass, lineFeatureClass, polygonFeatureClass, relationTable, user_displayname, userID, changeSetID, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                        }
                    }
                    catch (Exception ex)
                    {
                        message.AddError(120009, ex.Message);

                        try
                        {
                            if (ex is WebException)
                            {
                                WebException webException = ex as WebException;
                                string serverErrorMessage = webException.Response.Headers["Error"];
                                if (!String.IsNullOrEmpty(serverErrorMessage))
                                {
                                    message.AddError(120009, serverErrorMessage);
                                }
                            }
                        }
                        catch (Exception innerexception)
                        {
                            message.AddError(120009, innerexception.Message);
                        }
                    }
                    finally
                    {
                        if (httpResponse != null)
                        {
                            httpResponse.Close();
                        }
                    }
                    #endregion
                }
                else
                {
                    #region single upload format
                    #region submit the create nodes first
                    queryFilter.WhereClause = "(" +
                        sqlFormatter.SqlIdentifier("osmstatuscode") + " <> 200 OR "
                        + sqlFormatter.SqlIdentifier("osmstatus") + " IS NULL) AND "
                        + sqlFormatter.SqlIdentifier("osmaction") + " = 'create'  AND "
                        + sqlFormatter.SqlIdentifier("osmelementtype") + " = 'node'";

                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        searchCursor = revisionTable.Search(queryFilter, false);
                        comReleaser.ManageLifetime(searchCursor);

                        while ((searchRowToUpdate = searchCursor.NextRow()) != null)
                        {
                            try
                            {
                                string action = String.Empty;
                                if (revActionFieldIndex != -1)
                                {
                                    action = searchRowToUpdate.get_Value(revActionFieldIndex) as string;
                                }
                                string elementType = String.Empty;
                                if (revElementTypeFieldIndex != -1)
                                {
                                    elementType = searchRowToUpdate.get_Value(revElementTypeFieldIndex) as string;
                                }

                                string sourceFCName = String.Empty;
                                if (revFCNameFieldIndex != -1)
                                {
                                    sourceFCName = searchRowToUpdate.get_Value(revFCNameFieldIndex) as string;
                                }

                                long osmOldID = -1;
                                if (revOldIDFieldIndex != -1)
                                {
                                    osmOldID = Convert.ToInt64(searchRowToUpdate.get_Value(revOldIDFieldIndex));
                                }

                                // if the overall number of uploaded elements is too big for a single changeset we do need to split it up
                                // into multiple sets
                                if ((featureUpdateCounter % maxElementsinChangeSet) == 0)
                                {
                                    CreateNextChangeSet(message, createChangeSetOSM, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, ref changeSetID, baseURLGPString, ref featureUpdateCounter);
                                }

                                osm createNode = CreateOSMNodeRepresentation(pointFeatureClass, action, osmOldID, changeSetID, -1, null, internalExtensionVersion);

                                httpClient = null;
                                httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/" + elementType + "/create") as HttpWebRequest;
                                httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
                                httpClient.Method = "PUT";
                                SetBasicAuthHeader(httpClient, userCredentialGPValue.EncodedUserNamePassWord);
                                httpClient.Timeout = secondsToTimeout * 1000;

                                httpResponse = null;

                                string nodeContent = OsmRest.SerializeUtils.CreateXmlSerializable(createNode, serializer, Encoding.UTF8, "text/xml");

                                if (String.IsNullOrEmpty(nodeContent))
                                {
                                    continue;
                                }

                                OsmRest.HttpUtils.Put(httpClient, nodeContent);

                                httpResponse = httpClient.GetResponse() as HttpWebResponse;

                                createNode = null;

                                // track the update/sync requests against the server
                                featureUpdateCounter = featureUpdateCounter + 1;

                                if (httpResponse != null)
                                {
                                    string newIDString = OsmRest.HttpUtils.GetResponseContent(httpResponse);

                                    nodeosmIDLookup.Add(osmOldID, Convert.ToInt64(newIDString));

                                    // update the revision table
                                    if (revNewIDFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revNewIDFieldIndex, Convert.ToString(newIDString));
                                    }
                                    if (revVersionFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revVersionFieldIndex, 1);
                                    }
                                    if (revStatusFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revStatusFieldIndex, httpResponse.StatusCode.ToString());
                                    }
                                    if (revStatusCodeFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revStatusCodeFieldIndex, (int)httpResponse.StatusCode);
                                    }
                                    if (revChangeSetIDFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revChangeSetIDFieldIndex, Convert.ToString(changeSetID));
                                    }

                                    // update the source point feature class as well
                                    updateSource((ITable)pointFeatureClass, action, osmOldID, Convert.ToInt64(newIDString), user_displayname, userID, 1, Convert.ToInt32(changeSetID), nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup,internalExtensionVersion);
                                }
                            }
                            catch (Exception ex)
                            {

                                message.AddError(120009, ex.Message);

                                if (ex is WebException)
                                {
                                    updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                }
                            }
                            finally
                            {
                                try
                                {
                                    searchRowToUpdate.Store();
                                }
                                catch (Exception ex)
                                {
                                    System.Diagnostics.Debug.WriteLine(ex.Message);
                                }

                                if (httpResponse != null)
                                {
                                    httpResponse.Close();
                                }
                            }

                            if (TrackCancel.Continue() == false)
                            {
                                closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                return;
                            }
                        }
                    }
                    #endregion

                    #region next the create ways
                    queryFilter.WhereClause = "(" +
                        sqlFormatter.SqlIdentifier("osmstatuscode") + " <> 200 OR "
                        + sqlFormatter.SqlIdentifier("osmstatus") + " IS NULL) AND "
                        + sqlFormatter.SqlIdentifier("osmaction") + " = 'create'  AND "
                        + sqlFormatter.SqlIdentifier("osmelementtype") + " = 'way'";

                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        searchCursor = revisionTable.Search(queryFilter, false);
                        comReleaser.ManageLifetime(searchCursor);

                        while ((searchRowToUpdate = searchCursor.NextRow()) != null)
                        {
                            try
                            {
                                string action = String.Empty;
                                if (revActionFieldIndex != -1)
                                {
                                    action = searchRowToUpdate.get_Value(revActionFieldIndex) as string;
                                }
                                string elementType = String.Empty;
                                if (revElementTypeFieldIndex != -1)
                                {
                                    elementType = searchRowToUpdate.get_Value(revElementTypeFieldIndex) as string;
                                }

                                string sourceFCName = String.Empty;
                                if (revFCNameFieldIndex != -1)
                                {
                                    sourceFCName = searchRowToUpdate.get_Value(revFCNameFieldIndex) as string;
                                }

                                long osmOldID = -1;
                                if (revOldIDFieldIndex != -1)
                                {
                                    osmOldID = Convert.ToInt64(searchRowToUpdate.get_Value(revOldIDFieldIndex));
                                }

                                bool isPolygon = false;
                                if (sourceFCName.IndexOf("_osm_ply") > -1)
                                {
                                    isPolygon = true;
                                }

                                // if the overall number of uploaded elements is too big for a single changeset we do need to split it up
                                // into multiple sets
                                if ((featureUpdateCounter % maxElementsinChangeSet) == 0)
                                {
                                    CreateNextChangeSet(message, createChangeSetOSM, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, ref changeSetID, baseURLGPString, ref featureUpdateCounter);
                                }

                                osm createWay = new osm();
                                if (isPolygon == false)
                                {
                                    createWay = CreateOSMWayRepresentation(lineFeatureClass, action, osmOldID, changeSetID, -1, nodeosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);
                                }
                                else
                                {
                                    createWay = CreateOSMWayRepresentation(polygonFeatureClass, action, osmOldID, changeSetID, -1, nodeosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);
                                }

                                try
                                {
                                    HttpWebRequest httpClient3 = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/" + elementType + "/create") as HttpWebRequest;
                                    httpClient3 = OSMGPDownload.AssignProxyandCredentials(httpClient3);
                                    httpClient3.Method = "PUT";
                                    SetBasicAuthHeader(httpClient3, userCredentialGPValue.EncodedUserNamePassWord);
                                    httpClient.Timeout = secondsToTimeout * 1000;

                                    string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(createWay, serializer, Encoding.UTF8, "text/xml");
                                    OsmRest.HttpUtils.Put(httpClient3, sContent);
                                    createWay = null;

                                    httpResponse = null;
                                    httpResponse = httpClient3.GetResponse() as HttpWebResponse;

                                    // track the update/sync requests against the server
                                    featureUpdateCounter = featureUpdateCounter + 1;
                                }
                                catch (Exception ex)
                                {
                                    message.AddError(120009, ex.Message);

                                    if (ex is WebException)
                                    {
                                        updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                    }
                                }

                                if (httpResponse != null)
                                {
                                    string newIDString = OsmRest.HttpUtils.GetResponseContent(httpResponse);

                                    wayosmIDLookup.Add(osmOldID, Convert.ToInt64(newIDString));

                                    // update the revision table
                                    if (revNewIDFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revNewIDFieldIndex, Convert.ToString(newIDString));
                                    }
                                    if (revVersionFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revVersionFieldIndex, 1);
                                    }
                                    if (revStatusFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revStatusFieldIndex, httpResponse.StatusCode.ToString());
                                    }
                                    if (revStatusCodeFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revStatusCodeFieldIndex, (int)httpResponse.StatusCode);
                                    }
                                    if (revChangeSetIDFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revChangeSetIDFieldIndex, Convert.ToString(changeSetID));
                                    }

                                    // update the source line/polygon feature class as well
                                    if (isPolygon == false)
                                    {
                                        updateSource((ITable)lineFeatureClass, action, osmOldID, Convert.ToInt64(newIDString), user_displayname, userID, 1, Convert.ToInt32(changeSetID), nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                    }
                                    else
                                    {
                                        updateSource((ITable)polygonFeatureClass, action, osmOldID, Convert.ToInt64(newIDString), user_displayname, userID, 1, Convert.ToInt32(changeSetID), nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                    }
                                }
                            }

                            catch (Exception ex)
                            {
                                message.AddError(120009, ex.Message);

                                if (ex is WebException)
                                {
                                    updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                }
                            }
                            finally
                            {
                                try
                                {
                                    searchRowToUpdate.Store();
                                }
                                catch (Exception ex)
                                {
                                    System.Diagnostics.Debug.WriteLine(ex.Message);
                                }

                                if (httpResponse != null)
                                {
                                    httpResponse.Close();
                                }
                            }

                            if (TrackCancel.Continue() == false)
                            {
                                closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);

                                return;
                            }
                        }
                    }
                    #endregion

                    #region and then create relations
                    queryFilter.WhereClause = "(" +
                        sqlFormatter.SqlIdentifier("osmstatuscode") + " <> 200 OR "
                        + sqlFormatter.SqlIdentifier("osmstatus") + " IS NULL) AND "
                        + sqlFormatter.SqlIdentifier("osmaction") + " = 'create'  AND "
                        + sqlFormatter.SqlIdentifier("osmelementtype") + " = 'relation'";

                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        searchCursor = revisionTable.Search(queryFilter, false);
                        comReleaser.ManageLifetime(searchCursor);

                        while ((searchRowToUpdate = searchCursor.NextRow()) != null)
                        {
                            try
                            {

                                string action = String.Empty;
                                if (revActionFieldIndex != -1)
                                {
                                    action = searchRowToUpdate.get_Value(revActionFieldIndex) as string;
                                }
                                string elementType = String.Empty;
                                if (revElementTypeFieldIndex != -1)
                                {
                                    elementType = searchRowToUpdate.get_Value(revElementTypeFieldIndex) as string;
                                }

                                string sourceFCName = String.Empty;
                                if (revFCNameFieldIndex != -1)
                                {
                                    sourceFCName = searchRowToUpdate.get_Value(revFCNameFieldIndex) as string;
                                }

                                long osmOldID = -1;
                                if (revOldIDFieldIndex != -1)
                                {
                                    osmOldID = Convert.ToInt64(searchRowToUpdate.get_Value(revOldIDFieldIndex));
                                }

                                bool isPolygon = false;
                                if (sourceFCName.IndexOf("_osm_ply") > -1)
                                {
                                    isPolygon = true;
                                }

                                // if the overall number of uploaded elements is too big for a single changeset we do need to split it up
                                // into multiple sets
                                if ((featureUpdateCounter % maxElementsinChangeSet) == 0)
                                {
                                    CreateNextChangeSet(message, createChangeSetOSM, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, ref changeSetID, baseURLGPString, ref featureUpdateCounter);
                                }

                                osm createRelation = null;
                                // the relation is acutally multi-part line
                                if (sourceFCName.Contains("_osm_ln"))
                                {
                                    createRelation = CreateOSMRelationRepresentation((ITable)lineFeatureClass, action, osmOldID, changeSetID, -1, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                }
                                else if (sourceFCName.Contains("_osm_ply"))
                                {
                                    createRelation = CreateOSMRelationRepresentation((ITable)polygonFeatureClass, action, osmOldID, changeSetID, -1, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                }
                                else
                                {
                                    createRelation = CreateOSMRelationRepresentation(relationTable, action, osmOldID, changeSetID, -1, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                }
                                try
                                {
                                    HttpWebRequest httpClient4 = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/" + elementType + "/create") as HttpWebRequest;
                                    httpClient4 = OSMGPDownload.AssignProxyandCredentials(httpClient4);
                                    SetBasicAuthHeader(httpClient4, userCredentialGPValue.EncodedUserNamePassWord);
                                    httpClient4.Timeout = secondsToTimeout * 1000;
                                    string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(createRelation, serializer, Encoding.UTF8, "text/xml");

                                    OsmRest.HttpUtils.Put(httpClient4, sContent);

                                    httpResponse = null;
                                    httpResponse = httpClient4.GetResponse() as HttpWebResponse;
                                    // track the update/sync requests against the server
                                    featureUpdateCounter = featureUpdateCounter + 1;
                                }
                                catch (Exception ex)
                                {
                                    message.AddError(120009, ex.Message);

                                    if (ex is WebException)
                                    {
                                        updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                    }
                                }

                                if (httpResponse != null)
                                {
                                    string newIDString = OsmRest.HttpUtils.GetResponseContent(httpResponse);

                                    relationosmIDLookup.Add(osmOldID, Convert.ToInt64(newIDString));

                                    // update the revision table
                                    if (revNewIDFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revNewIDFieldIndex, Convert.ToString(newIDString));
                                    }
                                    if (revVersionFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revVersionFieldIndex, 1);
                                    }
                                    if (revStatusFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revStatusFieldIndex, httpResponse.StatusCode.ToString());
                                    }
                                    if (revStatusCodeFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revStatusCodeFieldIndex, (int)httpResponse.StatusCode);
                                    }
                                    if (revChangeSetIDFieldIndex != -1)
                                    {
                                        searchRowToUpdate.set_Value(revChangeSetIDFieldIndex, Convert.ToInt32(changeSetID));
                                    }

                                    if (sourceFCName.Contains("_osm_ln"))
                                    {
                                        updateSource((ITable)lineFeatureClass, action, osmOldID, Convert.ToInt64(newIDString), user_displayname, userID, 1, Convert.ToInt32(changeSetID), nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                    }
                                    else if (sourceFCName.Contains("_osm_ply"))
                                    {
                                        updateSource((ITable)polygonFeatureClass, action, osmOldID, Convert.ToInt64(newIDString), user_displayname, userID, 1, Convert.ToInt32(changeSetID), nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                    }
                                    else
                                    {
                                        // update the source table holding the relation information class as well
                                        updateSource(relationTable, action, osmOldID, Convert.ToInt64(newIDString), user_displayname, userID, 1, Convert.ToInt32(changeSetID), nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                    }
                                }
                            }

                            catch (Exception ex)
                            {
                                message.AddError(120009, ex.Message);

                                if (ex is WebException)
                                {
                                    updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                }
                            }
                            finally
                            {
                                try
                                {
                                    searchRowToUpdate.Store();
                                }
                                catch (Exception ex)
                                {
                                    System.Diagnostics.Debug.WriteLine(ex.Message);
                                }
                            }

                            if (TrackCancel.Continue() == false)
                            {
                                closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                return;
                            }
                        }
                    }
                    #endregion

                    #region after that submit the modify node, way, relation
                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        queryFilter.WhereClause = "(" +
                            sqlFormatter.SqlIdentifier("osmstatuscode") + " <> 200 OR "
                            + sqlFormatter.SqlIdentifier("osmstatus") + " IS NULL) AND "
                            + sqlFormatter.SqlIdentifier("osmaction") + " = 'modify'";

                        searchCursor = revisionTable.Search(queryFilter, false);
                        comReleaser.ManageLifetime(searchCursor);

                        while ((searchRowToUpdate = searchCursor.NextRow()) != null)
                        {
                            try
                            {

                                string action = String.Empty;
                                if (revActionFieldIndex != -1)
                                {
                                    action = searchRowToUpdate.get_Value(revActionFieldIndex) as string;
                                }
                                string elementType = String.Empty;
                                if (revElementTypeFieldIndex != -1)
                                {
                                    elementType = searchRowToUpdate.get_Value(revElementTypeFieldIndex) as string;
                                }

                                string sourceFCName = String.Empty;
                                if (revFCNameFieldIndex != -1)
                                {
                                    sourceFCName = searchRowToUpdate.get_Value(revFCNameFieldIndex) as string;
                                }

                                long osmOldID = -1;
                                if (revOldIDFieldIndex != -1)
                                {
                                    osmOldID = Convert.ToInt64(searchRowToUpdate.get_Value(revOldIDFieldIndex));
                                }

                                // if the overall number of uploaded elements is too big for a single changeset we do need to split it up
                                // into multiple sets
                                if ((featureUpdateCounter % maxElementsinChangeSet) == 0)
                                {
                                    CreateNextChangeSet(message, createChangeSetOSM, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, ref changeSetID, baseURLGPString, ref featureUpdateCounter);
                                }

                                switch (elementType)
                                {
                                    case "node":
                                        #region submit nodes to OSM server
                                        switch (action)
                                        {
                                            case "modify":
                                                long modifyID = -1;

                                                if (revNewIDFieldIndex != -1)
                                                {
                                                    object osmIDValue = searchRowToUpdate.get_Value(revNewIDFieldIndex);

                                                    if (osmIDValue == DBNull.Value)
                                                    {
                                                        osmIDValue = osmOldID;
                                                    }

                                                    try
                                                    {
                                                        modifyID = Convert.ToInt64(osmIDValue);
                                                    }
                                                    catch { }

                                                    // modifies should only happen to osm IDs > 0
                                                    // if that condition is not met let's skip this feature as something is not right
                                                    if (modifyID < 0)
                                                    {
                                                        continue;
                                                    }
                                                }

                                                int osmVersion = -1;
                                                if (revVersionFieldIndex != -1)
                                                {
                                                    osmVersion = Convert.ToInt32(searchRowToUpdate.get_Value(revVersionFieldIndex));
                                                }

                                                try
                                                {
                                                    HttpWebRequest httpClient5 = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/" + elementType + "/" + modifyID.ToString()) as HttpWebRequest;
                                                    httpClient5 = OSMGPDownload.AssignProxyandCredentials(httpClient5);
                                                    SetBasicAuthHeader(httpClient5, userCredentialGPValue.EncodedUserNamePassWord);

                                                    osm updateNode = CreateOSMNodeRepresentation(pointFeatureClass, action, modifyID, changeSetID, osmVersion, null, internalExtensionVersion);

                                                    string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(updateNode, serializer, Encoding.UTF8, "text/xml");

                                                    // if the serialized node at this time is a null or an empty string let's continue to the next point
                                                    if (String.IsNullOrEmpty(sContent))
                                                    {
                                                        continue;
                                                    }

                                                    OsmRest.HttpUtils.Put(httpClient5, sContent);

                                                    httpResponse = httpClient5.GetResponse() as HttpWebResponse;

                                                    // track the update/sync requests against the server
                                                    featureUpdateCounter = featureUpdateCounter + 1;

                                                    if (httpResponse != null)
                                                    {
                                                        string newVersionString = OsmRest.HttpUtils.GetResponseContent(httpResponse);

                                                        // update the revision table
                                                        if (revVersionFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revVersionFieldIndex, Convert.ToString(newVersionString));
                                                        }
                                                        if (revStatusFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revStatusFieldIndex, httpResponse.StatusCode.ToString());
                                                        }
                                                        if (revStatusCodeFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revStatusCodeFieldIndex, (int)httpResponse.StatusCode);
                                                        }
                                                        if (revChangeSetIDFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revChangeSetIDFieldIndex, Convert.ToInt32(changeSetID));
                                                        }

                                                        // for a modify the old id is still the new id
                                                        if (revNewIDFieldIndex != -1 && revOldIDFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revNewIDFieldIndex, searchRowToUpdate.get_Value(revOldIDFieldIndex));
                                                        }

                                                        // update the source point feature class as well
                                                        updateSource((ITable)pointFeatureClass, action, modifyID, modifyID, user_displayname, userID, Convert.ToInt32(newVersionString), Convert.ToInt32(changeSetID), null, null, null, internalExtensionVersion);

                                                        httpResponse.Close();
                                                    }
                                                }
                                                catch (Exception ex)
                                                {
                                                    message.AddError(120009, ex.Message);

                                                    if (ex is WebException)
                                                    {
                                                        updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                                    }
                                                }

                                                break;
                                            case "delete":
                                                // the delete operations are handled separately
                                                break;
                                            default:
                                                break;
                                        }
                                        break;
                                        #endregion
                                    case "way":
                                        #region submit ways to the OSM server
                                        // determine if we have a polygon or a polyline feature class
                                        bool isPolygon = false;
                                        if (sourceFCName.IndexOf("_osm_ply") > -1)
                                        {
                                            isPolygon = true;
                                        }

                                        switch (action)
                                        {
                                            case "modify":

                                                long modifyID = -1;

                                                if (revNewIDFieldIndex != -1)
                                                {
                                                    object osmIDValue = searchRowToUpdate.get_Value(revNewIDFieldIndex);

                                                    if (osmIDValue == DBNull.Value)
                                                    {
                                                        osmIDValue = osmOldID;
                                                    }

                                                    try
                                                    {
                                                        modifyID = Convert.ToInt64(osmIDValue);
                                                    }
                                                    catch { }

                                                    // modifies should only happen to osm IDs > 0
                                                    // if that condition is not met let's skip this feature as something is not right
                                                    if (modifyID < 0)
                                                    {
                                                        continue;
                                                    }
                                                }

                                                int osmVersion = -1;
                                                if (revVersionFieldIndex != -1)
                                                {
                                                    osmVersion = Convert.ToInt32(searchRowToUpdate.get_Value(revVersionFieldIndex));
                                                }

                                                osm updateWay = new osm();
                                                if (isPolygon == false)
                                                {
                                                    updateWay = CreateOSMWayRepresentation(lineFeatureClass, action, modifyID, changeSetID, osmVersion, nodeosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);
                                                }
                                                else
                                                {
                                                    updateWay = CreateOSMWayRepresentation(polygonFeatureClass, action, modifyID, changeSetID, osmVersion, nodeosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);
                                                }
                                                try
                                                {
                                                    string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(updateWay, serializer, Encoding.UTF8, "text/xml");
                                                    httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/" + elementType + "/" + modifyID.ToString()) as HttpWebRequest;
                                                    httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
                                                    SetBasicAuthHeader(httpClient, userCredentialGPValue.EncodedUserNamePassWord);
                                                    OsmRest.HttpUtils.Put(httpClient, sContent);

                                                    httpResponse = httpClient.GetResponse() as HttpWebResponse;

                                                    // track the update/sync requests against the server
                                                    featureUpdateCounter = featureUpdateCounter + 1;

                                                    if (httpResponse != null)
                                                    {
                                                        string newVersionString = OsmRest.HttpUtils.GetResponseContent(httpResponse);

                                                        // update the revision table
                                                        if (revVersionFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revVersionFieldIndex, Convert.ToString(newVersionString));
                                                        }
                                                        if (revStatusFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revStatusFieldIndex, httpResponse.StatusCode.ToString());
                                                        }
                                                        if (revStatusCodeFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revStatusCodeFieldIndex, (int)httpResponse.StatusCode);
                                                        }
                                                        if (revChangeSetIDFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revChangeSetIDFieldIndex, Convert.ToInt32(changeSetID));
                                                        }

                                                        // for a modify the old id is still the new id
                                                        if (revNewIDFieldIndex != -1 && revOldIDFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revNewIDFieldIndex, searchRowToUpdate.get_Value(revOldIDFieldIndex));
                                                        }

                                                        // update the source line/polygon feature class as well
                                                        if (isPolygon == false)
                                                        {
                                                            updateSource((ITable)lineFeatureClass, action, modifyID, modifyID, user_displayname, userID, Convert.ToInt32(newVersionString), Convert.ToInt32(changeSetID), nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                                        }
                                                        else
                                                        {
                                                            updateSource((ITable)polygonFeatureClass, action, modifyID, modifyID, user_displayname, userID, Convert.ToInt32(newVersionString), Convert.ToInt32(changeSetID), nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);
                                                        }

                                                        httpResponse.Close();
                                                    }
                                                }
                                                catch (Exception ex)
                                                {
                                                    message.AddError(120009, ex.Message);

                                                    if (ex is WebException)
                                                    {
                                                        updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                                    }
                                                }
                                                break;
                                            case "delete":
                                                // the delete operations are handled separately
                                                break;
                                            default:
                                                break;
                                        }
                                        break;
                                        #endregion
                                    case "relation":
                                        #region submit relations to the OSM server
                                        switch (action)
                                        {
                                            case "create":
                                                break;
                                            case "modify":

                                                long modifyID = -1;

                                                if (revNewIDFieldIndex != -1)
                                                {
                                                    object osmIDValue = searchRowToUpdate.get_Value(revNewIDFieldIndex);

                                                    if (osmIDValue == DBNull.Value)
                                                    {
                                                        osmIDValue = osmOldID;
                                                    }

                                                    try
                                                    {
                                                        modifyID = Convert.ToInt64(osmIDValue);
                                                    }
                                                    catch { }

                                                    // modifies should only happen to osm IDs > 0
                                                    // if that condition is not met let's skip this feature as something is not right
                                                    if (modifyID < 0)
                                                    {
                                                        continue;
                                                    }
                                                }

                                                int osmVersion = -1;
                                                if (revVersionFieldIndex != -1)
                                                {
                                                    osmVersion = Convert.ToInt32(searchRowToUpdate.get_Value(revVersionFieldIndex));
                                                }

                                                osm updateRelation = CreateOSMRelationRepresentation(relationTable, action, modifyID, changeSetID, osmVersion, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);

                                                try
                                                {
                                                    string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(updateRelation, serializer, Encoding.UTF8, "text/xml");
                                                    httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/" + elementType + "/" + modifyID.ToString()) as HttpWebRequest;
                                                    httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
                                                    SetBasicAuthHeader(httpClient, userCredentialGPValue.EncodedUserNamePassWord);
                                                    OsmRest.HttpUtils.Put(httpClient, sContent);

                                                    httpResponse = httpClient.GetResponse() as HttpWebResponse;

                                                    // track the update/sync requests against the server
                                                    featureUpdateCounter = featureUpdateCounter + 1;

                                                    if (httpResponse != null)
                                                    {
                                                        string newVersionString = OsmRest.HttpUtils.GetResponseContent(httpResponse);

                                                        // update the revision table
                                                        if (revVersionFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revVersionFieldIndex, Convert.ToInt32(newVersionString));
                                                        }
                                                        if (revStatusFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revStatusFieldIndex, httpResponse.StatusCode.ToString());
                                                        }
                                                        if (revStatusCodeFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revStatusCodeFieldIndex, (int)httpResponse.StatusCode);
                                                        }
                                                        if (revChangeSetIDFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revChangeSetIDFieldIndex, Convert.ToInt32(changeSetID));
                                                        }

                                                        // for a modify the old id is still the new id
                                                        if (revNewIDFieldIndex != -1 && revOldIDFieldIndex != -1)
                                                        {
                                                            searchRowToUpdate.set_Value(revNewIDFieldIndex, searchRowToUpdate.get_Value(revOldIDFieldIndex));
                                                        }

                                                        // update the source table holding the relation information class as well
                                                        updateSource(relationTable, action, modifyID, modifyID, user_displayname, userID, Convert.ToInt32(newVersionString), Convert.ToInt32(changeSetID), nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);

                                                        httpResponse.Close();
                                                    }
                                                }
                                                catch (Exception ex)
                                                {
                                                    message.AddError(120009, ex.Message);

                                                    if (ex is WebException)
                                                    {
                                                        updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                                    }
                                                }
                                                break;
                                            case "delete":
                                                // the delete operations are handled separately

                                                break;
                                            default:
                                                break;
                                        }
                                        break;
                                        #endregion
                                    default:
                                        break;
                                }
                            }

                            catch (Exception ex)
                            {
                                message.AddAbort(ex.Message);

                                if (ex is WebException)
                                {
                                    updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                }
                            }
                            finally
                            {
                                try
                                {
                                    searchRowToUpdate.Store();
                                }
                                catch (Exception ex)
                                {
                                    System.Diagnostics.Debug.WriteLine(ex.Message);
                                }

                                if (httpResponse != null)
                                {
                                    httpResponse.Close();
                                }
                            }

                            if (TrackCancel.Continue() == false)
                            {
                                closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);

                                return;
                            }

                        }
                    }
                    #endregion

                    #region now let's handle the delete in the reverse order - relation first, then ways, and then nodes as the last entity
                    #region delete relations
                    // now let's handle the delete in the reverse order - relation first, then ways, and then nodes as the last entity
                    queryFilter.WhereClause = "("
                        + sqlFormatter.SqlIdentifier("osmstatuscode") + " <> 200 OR "
                        + sqlFormatter.SqlIdentifier("osmstatus") + " IS NULL) AND "
                        + sqlFormatter.SqlIdentifier("osmaction") + " = 'delete' AND "
                        + sqlFormatter.SqlIdentifier("osmelementtype") + " = 'relation'";

                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        searchCursor = revisionTable.Search(queryFilter, false);
                        comReleaser.ManageLifetime(searchCursor);

                        while ((searchRowToUpdate = searchCursor.NextRow()) != null)
                        {

                            // if the overall number of uploaded elements is too big for a single changeset we do need to split it up
                            // into multiple sets
                            if ((featureUpdateCounter % maxElementsinChangeSet) == 0)
                            {
                                CreateNextChangeSet(message, createChangeSetOSM, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, ref changeSetID, baseURLGPString, ref featureUpdateCounter);
                            }

                            long osmID = -1;
                            if (revOldIDFieldIndex != -1)
                            {
                                osmID = Convert.ToInt64(searchRowToUpdate.get_Value(revOldIDFieldIndex));
                            }
                            int osmVersion = -1;
                            if (revVersionFieldIndex != -1)
                            {
                                osmVersion = Convert.ToInt32(searchRowToUpdate.get_Value(revVersionFieldIndex));
                            }

                            osm deleteRelation = CreateOSMRelationRepresentation(relationTable, "delete", osmID, changeSetID, osmVersion, nodeosmIDLookup, wayosmIDLookup, relationosmIDLookup, internalExtensionVersion);

                            string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(deleteRelation, serializer, Encoding.UTF8, "text/xml");

                            string errorMessage = String.Empty;
                            try
                            {
                                httpResponse = OsmRest.HttpUtils.Delete(baseURLGPString.Value + "/api/0.6/relation/" + Convert.ToString(osmID), sContent, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout) as HttpWebResponse;

                                // track the update/sync requests against the server
                                featureUpdateCounter = featureUpdateCounter + 1;

                                if (revStatusFieldIndex != -1)
                                {
                                    searchRowToUpdate.set_Value(revStatusFieldIndex, (int)httpResponse.StatusCode);
                                }
                                if (revStatusCodeFieldIndex != -1)
                                {
                                    searchRowToUpdate.set_Value(revStatusCodeFieldIndex, (int)httpResponse.StatusCode);
                                }

                                if (httpResponse != null)
                                {
                                    httpResponse.Close();
                                }
                            }
                            catch (Exception ex)
                            {
                                message.AddError(120009, ex.Message);

                                if (ex is WebException)
                                {
                                    updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                }

                                if (httpResponse != null)
                                {
                                    httpResponse.Close();
                                }
                            }

                            try
                            {
                                searchRowToUpdate.Store();
                            }
                            catch { }

                            if (TrackCancel.Continue() == false)
                            {
                                closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                return;
                            }

                        }
                    }

                    #endregion

                    #region handle delete ways
                    queryFilter.WhereClause = "("
                        + sqlFormatter.SqlIdentifier("osmstatuscode") + " <> 200 OR "
                        + sqlFormatter.SqlIdentifier("osmstatus") + " IS NULL) AND "
                        + sqlFormatter.SqlIdentifier("osmaction") + " = 'delete' AND "
                        + sqlFormatter.SqlIdentifier("osmelementtype") + " = 'way'";

                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        searchCursor = revisionTable.Search(queryFilter, false);
                        comReleaser.ManageLifetime(searchCursor);

                        while ((searchRowToUpdate = searchCursor.NextRow()) != null)
                        {

                            // if the overall number of uploaded elements is too big for a single changeset we do need to split it up
                            // into multiple sets
                            if ((featureUpdateCounter % maxElementsinChangeSet) == 0)
                            {
                                CreateNextChangeSet(message, createChangeSetOSM, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, ref changeSetID, baseURLGPString, ref featureUpdateCounter);
                            }

                            long osmID = -1;
                            if (revOldIDFieldIndex != -1)
                            {
                                osmID = Convert.ToInt64(searchRowToUpdate.get_Value(revOldIDFieldIndex));
                            }
                            int osmVersion = -1;
                            if (revVersionFieldIndex != -1)
                            {
                                osmVersion = Convert.ToInt32(searchRowToUpdate.get_Value(revVersionFieldIndex));
                            }

                            osm deleteWay = CreateOSMWayRepresentation(lineFeatureClass, "delete", osmID, changeSetID, osmVersion, wayosmIDLookup, pointFeatureClass, pointOSMIDFieldIndex, internalExtensionVersion);

                            string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(deleteWay, serializer, Encoding.UTF8, "text/xml");

                            try
                            {
                                httpResponse = null;
                                httpResponse = OsmRest.HttpUtils.Delete(baseURLGPString.Value + "/api/0.6/way/" + Convert.ToString(osmID), sContent, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout) as HttpWebResponse;

                                // track the update/sync requests against the server
                                featureUpdateCounter = featureUpdateCounter + 1;

                                string errorMessage = String.Empty;
                                // just grab the response and set it on the database
                                if (revStatusFieldIndex != -1)
                                {
                                    searchRowToUpdate.set_Value(revStatusFieldIndex, (int)httpResponse.StatusCode);
                                }
                                if (revStatusCodeFieldIndex != -1)
                                {
                                    searchRowToUpdate.set_Value(revStatusCodeFieldIndex, (int)httpResponse.StatusCode);
                                }

                                if (httpResponse != null)
                                {
                                    httpResponse.Close();
                                }
                            }

                            catch (Exception ex)
                            {
                                message.AddError(1200009, ex.Message);

                                if (ex is WebException)
                                {
                                    updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                }

                                if (httpResponse != null)
                                {
                                    httpResponse.Close();
                                }
                            }

                            try
                            {
                                searchRowToUpdate.Store();
                            }
                            catch { }

                            if (TrackCancel.Continue() == false)
                            {
                                closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                return;
                            }
                        }
                    }

                    #endregion

                    #region handle delete points
                    queryFilter.WhereClause = "("
                        + sqlFormatter.SqlIdentifier("osmstatuscode") + " <> 200 OR "
                        + sqlFormatter.SqlIdentifier("osmstatus") + " IS NULL) AND "
                        + sqlFormatter.SqlIdentifier("osmaction") + " = 'delete' AND "
                        + sqlFormatter.SqlIdentifier("osmelementtype") + " = 'node'";

                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        searchCursor = revisionTable.Search(queryFilter, false);
                        comReleaser.ManageLifetime(searchCursor);

                        while ((searchRowToUpdate = searchCursor.NextRow()) != null)
                        {
                            // if the overall number of uploaded elements is too big for a single changeset we do need to split it up
                            // into multiple sets
                            if ((featureUpdateCounter % maxElementsinChangeSet) == 0)
                            {
                                CreateNextChangeSet(message, createChangeSetOSM, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, ref changeSetID, baseURLGPString, ref featureUpdateCounter);
                            }

                            long osmID = -1;
                            if (revOldIDFieldIndex != -1)
                            {
                                osmID = Convert.ToInt64(searchRowToUpdate.get_Value(revOldIDFieldIndex));
                            }
                            int osmVersion = -1;
                            if (revVersionFieldIndex != -1)
                            {
                                osmVersion = Convert.ToInt32(searchRowToUpdate.get_Value(revVersionFieldIndex));
                            }

                            IPoint deletePoint = null;
                            if (revLongitudeFieldIndex != -1 && revLatitudeFieldIndex != -1)
                            {
                                try
                                {
                                    // let's reconstruct the delete point
                                    deletePoint = new PointClass();
                                    deletePoint.X = Convert.ToDouble(searchRowToUpdate.get_Value(revLongitudeFieldIndex));
                                    deletePoint.Y = Convert.ToDouble(searchRowToUpdate.get_Value(revLatitudeFieldIndex));
                                    deletePoint.SpatialReference = m_wgs84;
                                }
                                catch (Exception ex)
                                {
                                    message.AddWarning(ex.Message);
                                }

                                if (deletePoint == null)
                                {
                                    // inform the about the issue - no successful creation of point and continue on to the next delete instruction
                                    // in the revision table
                                    message.AddWarning(resourceManager.GetString("GPTools_OSMGPUpload_invalidPoint"));
                                    continue;
                                }
                            }

                            osm deleteNode = CreateOSMNodeRepresentation(pointFeatureClass, "delete", osmID, changeSetID, osmVersion, deletePoint, internalExtensionVersion);

                            string sContent = OsmRest.SerializeUtils.CreateXmlSerializable(deleteNode, serializer, Encoding.UTF8, "text/xml");

                            if (String.IsNullOrEmpty(sContent))
                            {
                                continue;
                            }

                            string errorMessage = String.Empty;

                            try
                            {
                                httpResponse = OsmRest.HttpUtils.Delete(baseURLGPString.Value + "/api/0.6/node/" + Convert.ToString(osmID), sContent, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout) as HttpWebResponse;

                                if (revStatusFieldIndex != -1)
                                {
                                    searchRowToUpdate.set_Value(revStatusFieldIndex, (int)httpResponse.StatusCode);
                                }

                                if (revStatusCodeFieldIndex != -1)
                                {
                                    searchRowToUpdate.set_Value(revStatusCodeFieldIndex, (int)httpResponse.StatusCode);
                                }

                                if (httpResponse != null)
                                {
                                    httpResponse.Close();
                                }
                            }
                            catch (Exception ex)
                            {
                                message.AddError(120009, ex.Message);

                                if (ex is WebException)
                                {
                                    updateErrorStatus(message, revStatusFieldIndex, revStatusCodeFieldIndex, revErrorMessageFieldIndex, ref searchRowToUpdate, ex);
                                }

                                if (httpResponse != null)
                                {
                                    httpResponse.Close();
                                }

                            }

                            // track the update/sync requests against the server
                            featureUpdateCounter = featureUpdateCounter + 1;

                            try
                            {
                                searchRowToUpdate.Store();
                            }
                            catch { }

                            if (TrackCancel.Continue() == false)
                            {
                                closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);
                                return;
                            }
                        }
                    }

                    #endregion
                    #endregion
                    #endregion
                }
            }
            catch (Exception ex)
            {
                message.AddError(120058, ex.Message);
                message.AddError(120058, ex.StackTrace);
            }
            finally
            {
                closeChangeSet(message, userCredentialGPValue.EncodedUserNamePassWord, secondsToTimeout, changeSetID, baseURLGPString);

                if (revisionTable != null)
                {
                    try
                    {
                        ISchemaLock tableSchemaLock = revisionTable as ISchemaLock;

                        if (tableSchemaLock != null)
                        {
                            tableSchemaLock.ChangeSchemaLock(esriSchemaLock.esriSharedSchemaLock);
                        }
                    }
                    catch (Exception eLock)
                    {
                        message.AddError(120059, resourceManager.GetString("GPTools_OSMGPUpload_LockErrorTitle") + eLock.Message);
                    }
                }

                if (revisionTable != null)
                {
                    Marshal.FinalReleaseComObject(revisionTable);
                }

                // if the searchCursor still has a reference somewhere do release it now - and as a result release any remaining table locks
                if (searchCursor != null)
                {
                    Marshal.FinalReleaseComObject(searchCursor);
                }

                gpUtilities3.RemoveInternalData();
                gpUtilities3.ReleaseInternals();

                //Marshal.ReleaseComObject(gpUtilities3);
            }
        }
        public void UpdateParameters(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager pEnvMgr)
        {
            IGPUtilities3 gpUtilities3 = new GPUtilitiesClass();

            IGPParameter revisionTableParameter = paramvalues.get_Element(in_changesTablesNumber) as IGPParameter;
            IGPValue revisionTableGPValue = gpUtilities3.UnpackGPValue(revisionTableParameter);

            if (revisionTableGPValue.IsEmpty() == false)
            {
                if (gpUtilities3.Exists(revisionTableGPValue) == false)
                {
                    IGPEnvironment workspaceEnvironment = gpUtilities3.GetEnvironment(pEnvMgr.GetEnvironments(), "workspace");
                    IGPValue workspace = workspaceEnvironment.Value;

                    if (workspace.IsEmpty() == false)
                    {
                        string old_locationValue = workspace.GetAsText() + System.IO.Path.DirectorySeparatorChar + revisionTableGPValue.GetAsText();
                        try
                        {
                            string location = gpUtilities3.QualifyOutputCatalogPath(old_locationValue);

                            if (location.Length != old_locationValue.Length)
                            {
                                revisionTableGPValue.SetAsText(location);
                                gpUtilities3.PackGPValue(revisionTableGPValue, revisionTableParameter);
                            }
                        }
                        catch { }
                    }
                }
            }

            gpUtilities3.ReleaseInternals();
        }
        public void UpdateMessages(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager pEnvMgr, ESRI.ArcGIS.Geodatabase.IGPMessages Messages)
        {
            IGPUtilities3 gpUtilities3 = new GPUtilitiesClass();

            // check for a valid download url
            IGPParameter uploadURLParameter = paramvalues.get_Element(in_uploadURLNumber) as IGPParameter;
            IGPString uploadURLGPString = uploadURLParameter.Value as IGPString;

            if (uploadURLGPString == null)
            {
                Messages.ReplaceError(in_uploadURLNumber, -198, String.Format(resourceManager.GetString("GPTools_NullPointerParameterType"), uploadURLParameter.Value.GetAsText()));
            }
            else
            {
                try
                {
                    if (uploadURLParameter.HasBeenValidated == false)
                    {
                        Uri downloadURI = new Uri(uploadURLGPString.Value);

                        // check base url
                        api osmAPICapabilities = OSMGPDownload.CheckValidServerURL(uploadURLGPString.Value);

                        // if we can construct a valid URI  class then we are accepting the value and store it in the user settings as well
                        if (m_editorConfigurationSettings != null)
                        {
                            if (m_editorConfigurationSettings.ContainsKey("osmbaseurl"))
                            {
                                m_editorConfigurationSettings["osmbaseurl"] = uploadURLGPString.Value;
                            }
                            else
                            {
                                m_editorConfigurationSettings.Add("osmbaseurl", uploadURLGPString.Value);
                            }

                            OSMGPFactory.StoreOSMEditorSettings(m_editorConfigurationSettings);
                        }
                    }
                }
                catch (Exception ex)
                {
                    StringBuilder errorMessage = new StringBuilder();
                    errorMessage.AppendLine(resourceManager.GetString("GPTools_OSMGPUpload_invaliduploadurl"));
                    errorMessage.AppendLine(ex.Message);
                    Messages.ReplaceError(in_uploadURLNumber, -3, errorMessage.ToString());
                }
            }

            IGPParameter revisionTableParameter = paramvalues.get_Element(in_changesTablesNumber) as IGPParameter;
            IGPValue revisionTableGPValue = gpUtilities3.UnpackGPValue(revisionTableParameter);

            if (revisionTableGPValue.IsEmpty())
                return;

            ITable revisionTable = null;
            IQueryFilter revisionTableQueryFilter = null;

            try
            {
                using (ComReleaser comReleaser = new ComReleaser())
                {
                    gpUtilities3.DecodeTableView(revisionTableGPValue, out revisionTable, out revisionTableQueryFilter);
                    comReleaser.ManageLifetime(revisionTable);

                    if (revisionTable is IFeatureClass)
                    {
                        Messages.ReplaceError(in_changesTablesNumber, -4, resourceManager.GetString("GPTools_OSMGPUpload_notarevisiontable"));
                        return;
                    }

                    IDatasetEdit datasetEdit = revisionTable as IDatasetEdit;
                    comReleaser.ManageLifetime(datasetEdit);

                    if (datasetEdit == null)
                    {
                        return;
                    }

                    if (datasetEdit.IsBeingEdited())
                    {
                        Messages.ReplaceError(in_changesTablesNumber, -4, resourceManager.GetString("GPTools_OSMGPUpload_inputnotvalidduringedit"));
                    }
                }

                gpUtilities3.ReleaseInternals();
            }
            catch
            {
                // check if we are dealing with a variable -- if we do then leave this string alone
                string tableName = revisionTableGPValue.GetAsText();
                string tableNameModified = tableName.Replace("%", String.Empty);

                if (((tableName.Length - tableNameModified.Length) % 2) == 0)
                {
                    Messages.Replace(in_changesTablesNumber, new GPMessageClass());
                }
            }
        }
Beispiel #8
0
        public void Execute(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.esriSystem.ITrackCancel TrackCancel, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager envMgr, ESRI.ArcGIS.Geodatabase.IGPMessages message)
        {
            try
            {
                IGPUtilities3 execute_Utilities = new GPUtilitiesClass();

                if (TrackCancel == null)
                {
                    TrackCancel = new CancelTrackerClass();
                }

                IGPParameter inputOSMParameter = paramvalues.get_Element(in_osmFeatureClass) as IGPParameter;
                IGPValue     inputOSMGPValue   = execute_Utilities.UnpackGPValue(inputOSMParameter);

                IGPParameter  tagCollectionParameter = paramvalues.get_Element(in_attributeSelector) as IGPParameter;
                IGPMultiValue tagCollectionGPValue   = execute_Utilities.UnpackGPValue(tagCollectionParameter) as IGPMultiValue;

                if (tagCollectionGPValue == null)
                {
                    message.AddError(120048, string.Format(resourceManager.GetString("GPTools_NullPointerParameterType"), tagCollectionParameter.Name));
                    return;
                }

                bool useUpdateCursor = false;

                IFeatureClass osmFeatureClass = null;
                ITable        osmInputTable   = null;
                IQueryFilter  osmQueryFilter  = null;

                try
                {
                    execute_Utilities.DecodeFeatureLayer(inputOSMGPValue, out osmFeatureClass, out osmQueryFilter);
                    if (osmFeatureClass != null)
                    {
                        if (osmFeatureClass.Extension is IOSMClassExtension)
                        {
                            useUpdateCursor = false;
                        }
                        else
                        {
                            useUpdateCursor = true;
                        }
                    }

                    osmInputTable = osmFeatureClass as ITable;
                }
                catch { }

                try
                {
                    if (osmInputTable == null)
                    {
                        execute_Utilities.DecodeTableView(inputOSMGPValue, out osmInputTable, out osmQueryFilter);
                    }
                }
                catch { }

                if (osmInputTable == null)
                {
                    string errorMessage = String.Format(resourceManager.GetString("GPTools_OSMGPAttributeSelecto_unableopentable"), inputOSMGPValue.GetAsText());
                    message.AddError(120053, errorMessage);
                    return;
                }

                // find the field that holds tag binary/xml field
                int osmTagCollectionFieldIndex = osmInputTable.FindField("osmTags");


                // if the Field doesn't exist - wasn't found (index = -1) get out
                if (osmTagCollectionFieldIndex == -1)
                {
                    message.AddError(120005, resourceManager.GetString("GPTools_OSMGPAttributeSelector_notagfieldfound"));
                    return;
                }

                // check if the tag collection includes the keyword "ALL", if does then we'll need to extract all tags
                bool extractAll = false;
                for (int valueIndex = 0; valueIndex < tagCollectionGPValue.Count; valueIndex++)
                {
                    if (tagCollectionGPValue.get_Value(valueIndex).GetAsText().Equals("ALL"))
                    {
                        extractAll = true;
                        break;
                    }
                }
                //if (extractAll)
                //{
                //    if (osmTagKeyCodedValues == null)
                //        extractAllTags(ref osmTagKeyCodedValues, osmInputTable, osmQueryFilter, osmTagCollectionFieldIndex, false);

                //    if (osmTagKeyCodedValues == null)
                //    {
                //        message.AddAbort(resourceManager.GetString("GPTools_OSMGPAttributeSelector_Unable2RetrieveTags"));
                //        return;
                //    }

                //    // empty the existing gp multivalue object
                //    tagCollectionGPValue = new GPMultiValueClass();

                //    // fill the coded domain in gp multivalue object
                //    for (int valueIndex = 0; valueIndex < osmTagKeyCodedValues.CodeCount; valueIndex++)
                //    {
                //        tagCollectionGPValue.AddValue(osmTagKeyCodedValues.get_Value(valueIndex));
                //    }
                //}

                // get an overall feature count as that determines the progress indicator
                int featureCount = osmInputTable.RowCount(osmQueryFilter);

                // set up the progress indicator
                IStepProgressor stepProgressor = TrackCancel as IStepProgressor;

                if (stepProgressor != null)
                {
                    stepProgressor.MinRange  = 0;
                    stepProgressor.MaxRange  = featureCount;
                    stepProgressor.Position  = 0;
                    stepProgressor.Message   = resourceManager.GetString("GPTools_OSMGPAttributeSelector_progressMessage");
                    stepProgressor.StepValue = 1;
                    stepProgressor.Show();
                }

                // let's get all the indices of the desired fields
                // if the field already exists get the index and if it doesn't exist create it
                Dictionary <string, int> tagsAttributesIndices = new Dictionary <string, int>();
                Dictionary <int, int>    attributeFieldLength  = new Dictionary <int, int>();

                IFeatureWorkspaceManage featureWorkspaceManage = ((IDataset)osmInputTable).Workspace as IFeatureWorkspaceManage;

                String illegalCharacters = String.Empty;

                ISQLSyntax sqlSyntax = ((IDataset)osmInputTable).Workspace as ISQLSyntax;
                if (sqlSyntax != null)
                {
                    illegalCharacters = sqlSyntax.GetInvalidCharacters();
                }

                IFieldsEdit fieldsEdit = osmInputTable.Fields as IFieldsEdit;


                using (SchemaLockManager lockMgr = new SchemaLockManager(osmInputTable))
                {
                    try
                    {
                        string tagKey = String.Empty;
                        ESRI.ArcGIS.Geoprocessing.IGeoProcessor2 gp = new ESRI.ArcGIS.Geoprocessing.GeoProcessorClass();

                        // if we have explicitly defined tags to extract then go through the list of values now
                        if (extractAll == false)
                        {
                            for (int valueIndex = 0; valueIndex < tagCollectionGPValue.Count; valueIndex++)
                            {
                                if (TrackCancel.Continue() == false)
                                {
                                    return;
                                }

                                try
                                {
                                    // Check if the input field already exists.
                                    string nameofTag = tagCollectionGPValue.get_Value(valueIndex).GetAsText();
                                    tagKey = convert2AttributeFieldName(nameofTag, illegalCharacters);

                                    int fieldIndex = osmInputTable.FindField(tagKey);

                                    if (fieldIndex < 0)
                                    {
                                        // generate a new attribute field
                                        IFieldEdit fieldEdit = new FieldClass();
                                        fieldEdit.Name_2      = tagKey;
                                        fieldEdit.AliasName_2 = nameofTag + resourceManager.GetString("GPTools_OSMGPAttributeSelector_aliasaddition");
                                        fieldEdit.Type_2      = esriFieldType.esriFieldTypeString;
                                        fieldEdit.Length_2    = 100;

                                        osmInputTable.AddField(fieldEdit);

                                        message.AddMessage(string.Format(resourceManager.GetString("GPTools_OSMGPAttributeSelector_addField"), tagKey, nameofTag));

                                        // re-generate the attribute index
                                        fieldIndex = osmInputTable.FindField(tagKey);
                                    }

                                    if (fieldIndex > 0)
                                    {
                                        tagsAttributesIndices.Add(nameofTag, fieldIndex);
                                        attributeFieldLength.Add(fieldIndex, osmInputTable.Fields.get_Field(fieldIndex).Length);
                                    }
                                }
                                catch (Exception ex)
                                {
                                    // the key is already there, this might result because from multiple upper and lower-case combinations of the same key
                                    message.AddWarning(ex.Message + " (" + convert2OSMKey(tagKey, illegalCharacters) + ")");
                                }
                            }
                        }
                        else
                        {
                            List <string> listofAllTags = extractAllTags(osmInputTable, osmQueryFilter, osmTagCollectionFieldIndex);

                            foreach (string nameOfTag in listofAllTags)
                            {
                                if (TrackCancel.Continue() == false)
                                {
                                    return;
                                }

                                try
                                {
                                    // Check if the input field already exists.
                                    tagKey = convert2AttributeFieldName(nameOfTag, illegalCharacters);

                                    int fieldIndex = osmInputTable.FindField(tagKey);

                                    if (fieldIndex < 0)
                                    {
                                        // generate a new attribute field
                                        IFieldEdit fieldEdit = new FieldClass();
                                        fieldEdit.Name_2      = tagKey;
                                        fieldEdit.AliasName_2 = nameOfTag + resourceManager.GetString("GPTools_OSMGPAttributeSelector_aliasaddition");
                                        fieldEdit.Type_2      = esriFieldType.esriFieldTypeString;
                                        fieldEdit.Length_2    = 100;

                                        osmInputTable.AddField(fieldEdit);

                                        message.AddMessage(string.Format(resourceManager.GetString("GPTools_OSMGPAttributeSelector_addField"), tagKey, nameOfTag));

                                        // re-generate the attribute index
                                        fieldIndex = osmInputTable.FindField(tagKey);
                                    }

                                    if (fieldIndex > 0)
                                    {
                                        tagsAttributesIndices.Add(nameOfTag, fieldIndex);
                                        attributeFieldLength.Add(fieldIndex, osmInputTable.Fields.get_Field(fieldIndex).Length);
                                    }
                                }
                                catch (Exception ex)
                                {
                                    // the key is already there, this might result because from multiple upper and lower-case combinations of the same key
                                    message.AddWarning(ex.Message + " (" + convert2OSMKey(tagKey, illegalCharacters) + ")");
                                }
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        message.AddWarning(ex.Message);
                    }
                }

                try
                {
                    execute_Utilities.DecodeFeatureLayer(inputOSMGPValue, out osmFeatureClass, out osmQueryFilter);
                    if (osmFeatureClass != null)
                    {
                        if (osmFeatureClass.Extension is IOSMClassExtension)
                        {
                            useUpdateCursor = false;
                        }
                        else
                        {
                            useUpdateCursor = true;
                        }
                    }

                    osmInputTable = osmFeatureClass as ITable;
                }
                catch { }

                try
                {
                    if (osmInputTable == null)
                    {
                        execute_Utilities.DecodeTableView(inputOSMGPValue, out osmInputTable, out osmQueryFilter);
                    }
                }
                catch { }

                if (osmInputTable == null)
                {
                    string errorMessage = String.Format(resourceManager.GetString("GPTools_OSMGPAttributeSelecto_unableopentable"), inputOSMGPValue.GetAsText());
                    message.AddError(120053, errorMessage);
                    return;
                }

                using (ComReleaser comReleaser = new ComReleaser())
                {
                    using (SchemaLockManager lockMgr = new SchemaLockManager(osmInputTable))
                    {
                        // get an update cursor for all the features to process
                        ICursor rowCursor = null;
                        if (useUpdateCursor)
                        {
                            rowCursor = osmInputTable.Update(osmQueryFilter, false);
                        }
                        else
                        {
                            rowCursor = osmInputTable.Search(osmQueryFilter, false);
                        }

                        comReleaser.ManageLifetime(rowCursor);

                        IRow osmRow = null;


                        Dictionary <string, string> tagKeys = new Dictionary <string, string>();
                        int progessIndex = 0;
#if DEBUG
                        message.AddMessage("useUpdateCursor: " + useUpdateCursor.ToString());
#endif

                        // as long as there are features....
                        while ((osmRow = rowCursor.NextRow()) != null)
                        {
                            // retrieve the tags of the current feature
                            tag[] storedTags = _osmUtility.retrieveOSMTags(osmRow, osmTagCollectionFieldIndex, ((IDataset)osmInputTable).Workspace);

                            bool rowChanged = false;
                            if (storedTags != null)
                            {
                                foreach (tag tagItem in storedTags)
                                {
                                    // Check for matching values so we only change a minimum number of rows
                                    if (tagsAttributesIndices.ContainsKey(tagItem.k))
                                    {
                                        int fieldIndex = tagsAttributesIndices[tagItem.k];

                                        //...then stored the value in the attribute field
                                        // ensure that the content of the tag actually does fit into the field length...otherwise do truncate it
                                        string tagValue = tagItem.v;

                                        int fieldLength = attributeFieldLength[fieldIndex];

                                        if (tagValue.Length > fieldLength)
                                        {
                                            tagValue = tagValue.Substring(0, fieldLength);
                                        }

                                        osmRow.set_Value(fieldIndex, tagValue);
                                        rowChanged = true;
                                    }
                                    else
                                    {
#if DEBUG
                                        //message.AddWarning(tagItem.k);
#endif
                                    }
                                }
                            }

                            storedTags = null;

                            try
                            {
                                if (rowChanged)
                                {
                                    if (useUpdateCursor)
                                    {
                                        rowCursor.UpdateRow(osmRow);
                                    }
                                    else
                                    {
                                        // update the feature through the cursor
                                        osmRow.Store();
                                    }
                                }
                                progessIndex++;
                            }
                            catch (Exception ex)
                            {
                                System.Diagnostics.Debug.WriteLine(ex.Message);
                                message.AddWarning(ex.Message);
                            }

                            if (osmRow != null)
                            {
                                Marshal.ReleaseComObject(osmRow);
                            }

                            if (stepProgressor != null)
                            {
                                // update the progress UI
                                stepProgressor.Position = progessIndex;
                            }

                            // check for user cancellation (every 100 rows)
                            if ((progessIndex % 100 == 0) && (TrackCancel.Continue() == false))
                            {
                                return;
                            }
                        }

                        if (stepProgressor != null)
                        {
                            stepProgressor.Hide();
                        }
                    }
                }

                execute_Utilities.ReleaseInternals();
                Marshal.ReleaseComObject(execute_Utilities);
            }
            catch (Exception ex)
            {
                message.AddError(120054, ex.Message);
            }
        }
        public void Execute(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.esriSystem.ITrackCancel TrackCancel, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager envMgr, ESRI.ArcGIS.Geodatabase.IGPMessages message)
        {
            IFeatureClass osmPointFeatureClass = null;
            IFeatureClass osmLineFeatureClass = null;
            IFeatureClass osmPolygonFeatureClass = null;
            OSMToolHelper osmToolHelper = null;

            try
            {
                DateTime syncTime = DateTime.Now;

                IGPUtilities3 gpUtilities3 = new GPUtilitiesClass();
                osmToolHelper = new OSMToolHelper();

                if (TrackCancel == null)
                {
                    TrackCancel = new CancelTrackerClass();
                }

                IGPParameter osmFileParameter = paramvalues.get_Element(in_osmFileNumber) as IGPParameter;
                IGPValue osmFileLocationString = gpUtilities3.UnpackGPValue(osmFileParameter) as IGPValue;

                // ensure that the specified file does exist
                bool osmFileExists = false;

                try
                {
                    osmFileExists = System.IO.File.Exists(osmFileLocationString.GetAsText());
                }
                catch (Exception ex)
                {
                    message.AddError(120029, String.Format(resourceManager.GetString("GPTools_OSMGPFileReader_problemaccessingfile"), ex.Message));
                    return;
                }

                if (osmFileExists == false)
                {
                    message.AddError(120030, String.Format(resourceManager.GetString("GPTools_OSMGPFileReader_osmfiledoesnotexist"), osmFileLocationString.GetAsText()));
                    return;
                }

                IGPParameter conserveMemoryParameter = paramvalues.get_Element(in_conserveMemoryNumber) as IGPParameter;
                IGPBoolean conserveMemoryGPValue = gpUtilities3.UnpackGPValue(conserveMemoryParameter) as IGPBoolean;

                if (conserveMemoryGPValue == null)
                {
                    message.AddError(120031, string.Format(resourceManager.GetString("GPTools_NullPointerParameterType"), conserveMemoryParameter.Name));
                    return;
                }

                message.AddMessage(resourceManager.GetString("GPTools_OSMGPFileReader_countingNodes"));
                long nodeCapacity = 0;
                long wayCapacity = 0;
                long relationCapacity = 0;

                Dictionary<esriGeometryType, List<string>> attributeTags = new Dictionary<esriGeometryType, List<string>>();

                IGPParameter tagCollectionParameter = paramvalues.get_Element(in_attributeSelector) as IGPParameter;
                IGPMultiValue tagCollectionGPValue = gpUtilities3.UnpackGPValue(tagCollectionParameter) as IGPMultiValue;

                List<String> tagstoExtract = null;

                if (tagCollectionGPValue.Count > 0)
                {
                    tagstoExtract = new List<string>();

                    for (int valueIndex = 0; valueIndex < tagCollectionGPValue.Count; valueIndex++)
                    {
                        string nameOfTag = tagCollectionGPValue.get_Value(valueIndex).GetAsText();

                        if (nameOfTag.ToUpper().Equals("ALL"))
                        {
                            tagstoExtract = new List<string>();
                            break;
                        }
                        else
                        {
                            tagstoExtract.Add(nameOfTag);
                        }
                    }
                }

                // if there is an "ALL" keyword then we scan for all tags, otherwise we only add the desired tags to the feature classes and do a 'quick'
                // count scan

                if (tagstoExtract != null)
                {
                    if (tagstoExtract.Count > 0)
                    {
                        // if the number of tags is > 0 then do a simple feature count and take name tags names from the gp value
                        osmToolHelper.countOSMStuff(osmFileLocationString.GetAsText(), ref nodeCapacity, ref wayCapacity, ref relationCapacity, ref TrackCancel);
                        attributeTags.Add(esriGeometryType.esriGeometryPoint, tagstoExtract);
                        attributeTags.Add(esriGeometryType.esriGeometryPolyline, tagstoExtract);
                        attributeTags.Add(esriGeometryType.esriGeometryPolygon, tagstoExtract);
                    }
                    else
                    {
                        // the count should be zero if we encountered the "ALL" keyword 
                        // in this case count the features and create a list of unique tags
                        attributeTags = osmToolHelper.countOSMCapacityAndTags(osmFileLocationString.GetAsText(), ref nodeCapacity, ref wayCapacity, ref relationCapacity, ref TrackCancel);
                    }
                }
                else
                {
                    // no tags we defined, hence we do a simple count and create an empty list indicating that no additional fields
                    // need to be created
                    osmToolHelper.countOSMStuff(osmFileLocationString.GetAsText(), ref nodeCapacity, ref wayCapacity, ref relationCapacity, ref TrackCancel);
                    attributeTags.Add(esriGeometryType.esriGeometryPoint, new List<string>());
                    attributeTags.Add(esriGeometryType.esriGeometryPolyline, new List<string>());
                    attributeTags.Add(esriGeometryType.esriGeometryPolygon, new List<string>());
                }

                if (nodeCapacity == 0 && wayCapacity == 0 && relationCapacity == 0)
                {
                    return;
                }

                if (conserveMemoryGPValue.Value == false)
                {
                    osmNodeDictionary = new Dictionary<string, OSMToolHelper.simplePointRef>(Convert.ToInt32(nodeCapacity));
                }

                message.AddMessage(String.Format(resourceManager.GetString("GPTools_OSMGPFileReader_countedElements"), nodeCapacity, wayCapacity, relationCapacity));

                // prepare the feature dataset and classes
                IGPParameter targetDatasetParameter = paramvalues.get_Element(out_targetDatasetNumber) as IGPParameter;
                IGPValue targetDatasetGPValue = gpUtilities3.UnpackGPValue(targetDatasetParameter);
                IDEDataset2 targetDEDataset2 = targetDatasetGPValue as IDEDataset2;

                if (targetDEDataset2 == null)
                {
                    message.AddError(120048, string.Format(resourceManager.GetString("GPTools_NullPointerParameterType"), targetDatasetParameter.Name));
                    return;
                }

                string targetDatasetName = ((IGPValue)targetDEDataset2).GetAsText();

                IDataElement targetDataElement = targetDEDataset2 as IDataElement;
                IDataset targetDataset = gpUtilities3.OpenDatasetFromLocation(targetDataElement.CatalogPath);

                IName parentName = null;

                try
                {
                    parentName = gpUtilities3.CreateParentFromCatalogPath(targetDataElement.CatalogPath);
                }
                catch 
                {
                    message.AddError(120033, resourceManager.GetString("GPTools_OSMGPFileReader_unable_to_create_fd"));
                    return;
                }


                // test if the feature classes already exists, 
                // if they do and the environments settings are such that an overwrite is not allowed we need to abort at this point
                IGeoProcessorSettings gpSettings = (IGeoProcessorSettings)envMgr;
                if (gpSettings.OverwriteOutput == true)
                {
                }
                else
                {
                    if (gpUtilities3.Exists((IGPValue)targetDEDataset2) == true)
                    {
                        message.AddError(120032, String.Format(resourceManager.GetString("GPTools_OSMGPFileReader_basenamealreadyexists"), targetDataElement.Name));
                        return;
                    }
                }

                // load the descriptions from which to derive the domain values
                OSMDomains availableDomains = null;

                // Reading the XML document requires a FileStream.
                System.Xml.XmlTextReader reader = null;
                string xmlDomainFile = "";
                m_editorConfigurationSettings.TryGetValue("osmdomainsfilepath", out xmlDomainFile);

                if (System.IO.File.Exists(xmlDomainFile))
                {
                    reader = new System.Xml.XmlTextReader(xmlDomainFile);
                }

                if (reader == null)
                {
                    message.AddError(120033, resourceManager.GetString("GPTools_OSMGPDownload_NoDomainConfigFile"));
                    return;
                }

                System.Xml.Serialization.XmlSerializer domainSerializer = null;

                try
                {
                    domainSerializer = new XmlSerializer(typeof(OSMDomains));
                    availableDomains = domainSerializer.Deserialize(reader) as OSMDomains;
                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine(ex.Message);
                    System.Diagnostics.Debug.WriteLine(ex.StackTrace);
                    message.AddError(120034, ex.Message);
                    return;
                }
                reader.Close();

                message.AddMessage(resourceManager.GetString("GPTools_preparedb"));

                Dictionary<string, IDomain> codedValueDomains = new Dictionary<string, IDomain>();

                foreach (var domain in availableDomains.domain)
                {
                    ICodedValueDomain pointCodedValueDomain = new CodedValueDomainClass();
                    ((IDomain)pointCodedValueDomain).Name = domain.name + "_pt";
                    ((IDomain)pointCodedValueDomain).FieldType = esriFieldType.esriFieldTypeString;

                    ICodedValueDomain lineCodedValueDomain = new CodedValueDomainClass();
                    ((IDomain)lineCodedValueDomain).Name = domain.name + "_ln";
                    ((IDomain)lineCodedValueDomain).FieldType = esriFieldType.esriFieldTypeString;

                    ICodedValueDomain polygonCodedValueDomain = new CodedValueDomainClass();
                    ((IDomain)polygonCodedValueDomain).Name = domain.name + "_ply";
                    ((IDomain)polygonCodedValueDomain).FieldType = esriFieldType.esriFieldTypeString;

                    for (int i = 0; i < domain.domainvalue.Length; i++)
                    {
                        for (int domainGeometryIndex = 0; domainGeometryIndex < domain.domainvalue[i].geometrytype.Length; domainGeometryIndex++)
                        {
                            switch (domain.domainvalue[i].geometrytype[domainGeometryIndex])
                            {
                                case geometrytype.point:
                                    pointCodedValueDomain.AddCode(domain.domainvalue[i].value, domain.domainvalue[i].value);
                                    break;
                                case geometrytype.line:
                                    lineCodedValueDomain.AddCode(domain.domainvalue[i].value, domain.domainvalue[i].value);
                                    break;
                                case geometrytype.polygon:
                                    polygonCodedValueDomain.AddCode(domain.domainvalue[i].value, domain.domainvalue[i].value);
                                    break;
                                default:
                                    break;
                            }
                        }
                    }

                    // add the domain tables to the domains collection
                    codedValueDomains.Add(((IDomain)pointCodedValueDomain).Name, (IDomain)pointCodedValueDomain);
                    codedValueDomains.Add(((IDomain)lineCodedValueDomain).Name, (IDomain)lineCodedValueDomain);
                    codedValueDomains.Add(((IDomain)polygonCodedValueDomain).Name, (IDomain)polygonCodedValueDomain);
                }

                IWorkspaceDomains workspaceDomain = null;
                IFeatureWorkspace featureWorkspace = null;
                // if the target dataset already exists we can go ahead and QI to it directly
                if (targetDataset != null)
                {
                    workspaceDomain = targetDataset.Workspace as IWorkspaceDomains;
                    featureWorkspace = targetDataset.Workspace as IFeatureWorkspace;
                }
                else
                {
                    // in case it doesn't exist yet we will open the parent (the workspace - geodatabase- itself) and 
                    // use it as a reference to create the feature dataset and the feature classes in it.
                    IWorkspace newWorkspace = ((IName)parentName).Open() as IWorkspace;
                    workspaceDomain = newWorkspace as IWorkspaceDomains;
                    featureWorkspace = newWorkspace as IFeatureWorkspace;
                }

                foreach (var domain in codedValueDomains.Values)
                {
                    IDomain testDomain = null;
                    try
                    {
                        testDomain = workspaceDomain.get_DomainByName(domain.Name);
                    }
                    catch { }

                    if (testDomain == null)
                    {
                        workspaceDomain.AddDomain(domain);
                    }
                }

                // this determines the spatial reference as defined from the gp environment settings and the initial wgs84 SR
                ISpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceEnvironmentClass() as ISpatialReferenceFactory;
                ISpatialReference wgs84 = spatialReferenceFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984) as ISpatialReference;

                ISpatialReference downloadSpatialReference = gpUtilities3.GetGPSpRefEnv(envMgr, wgs84, null, 0, 0, 0, 0, null);

                Marshal.ReleaseComObject(wgs84);
                Marshal.ReleaseComObject(spatialReferenceFactory);

                IGPEnvironment configKeyword = OSMGPDownload.getEnvironment(envMgr, "configKeyword");
                IGPString gpString = configKeyword.Value as IGPString;

                string storageKeyword = String.Empty;

                if (gpString != null)
                {
                    storageKeyword = gpString.Value;
                }

                IFeatureDataset targetFeatureDataset = null;
                if (gpUtilities3.Exists((IGPValue)targetDEDataset2))
                {
                    targetFeatureDataset = gpUtilities3.OpenDataset((IGPValue)targetDEDataset2) as IFeatureDataset;
                }
                else
                {
                    targetFeatureDataset = featureWorkspace.CreateFeatureDataset(targetDataElement.Name, downloadSpatialReference);
                }


                downloadSpatialReference = ((IGeoDataset)targetFeatureDataset).SpatialReference;

                string metadataAbstract = resourceManager.GetString("GPTools_OSMGPFileReader_metadata_abstract");
                string metadataPurpose = resourceManager.GetString("GPTools_OSMGPFileReader_metadata_purpose");

                // assign the custom class extension for use with the OSM feature inspector
                UID osmClassUID = new UIDClass();
                osmClassUID.Value = "{65CA4847-8661-45eb-8E1E-B2985CA17C78}";

                // points
                try
                {
                    osmPointFeatureClass = osmToolHelper.CreatePointFeatureClass((IWorkspace2)featureWorkspace, targetFeatureDataset, targetDataElement.Name + "_osm_pt", null, null, null, storageKeyword, availableDomains, metadataAbstract, metadataPurpose, attributeTags[esriGeometryType.esriGeometryPoint]);
                }
                catch (Exception ex)
                {
                    message.AddError(120035, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullpointfeatureclass"), ex.Message));
                    return;
                }

                if (osmPointFeatureClass == null)
                {
                    return;
                }

                // change the property set of the osm class extension to skip any change detection during the initial data load
                osmPointFeatureClass.RemoveOSMClassExtension();

                int osmPointIDFieldIndex = osmPointFeatureClass.FindField("OSMID");
                Dictionary<string, int> osmPointDomainAttributeFieldIndices = new Dictionary<string, int>();
                foreach (var domains in availableDomains.domain)
                {
                    int currentFieldIndex = osmPointFeatureClass.FindField(domains.name);

                    if (currentFieldIndex != -1)
                    {
                        osmPointDomainAttributeFieldIndices.Add(domains.name, currentFieldIndex);
                    }
                }
                int tagCollectionPointFieldIndex = osmPointFeatureClass.FindField("osmTags");
                int osmUserPointFieldIndex = osmPointFeatureClass.FindField("osmuser");
                int osmUIDPointFieldIndex = osmPointFeatureClass.FindField("osmuid");
                int osmVisiblePointFieldIndex = osmPointFeatureClass.FindField("osmvisible");
                int osmVersionPointFieldIndex = osmPointFeatureClass.FindField("osmversion");
                int osmChangesetPointFieldIndex = osmPointFeatureClass.FindField("osmchangeset");
                int osmTimeStampPointFieldIndex = osmPointFeatureClass.FindField("osmtimestamp");
                int osmMemberOfPointFieldIndex = osmPointFeatureClass.FindField("osmMemberOf");
                int osmSupportingElementPointFieldIndex = osmPointFeatureClass.FindField("osmSupportingElement");
                int osmWayRefCountFieldIndex = osmPointFeatureClass.FindField("wayRefCount");


                // lines
                try
                {
                    osmLineFeatureClass = osmToolHelper.CreateLineFeatureClass((IWorkspace2)featureWorkspace, targetFeatureDataset, targetDataElement.Name + "_osm_ln", null, null, null, storageKeyword, availableDomains, metadataAbstract, metadataPurpose, attributeTags[esriGeometryType.esriGeometryPolyline]);
                }
                catch (Exception ex)
                {
                    message.AddError(120036, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nulllinefeatureclass"), ex.Message));
                    return;
                }

                if (osmLineFeatureClass == null)
                {
                    return;
                }

                // change the property set of the osm class extension to skip any change detection during the initial data load
                osmLineFeatureClass.RemoveOSMClassExtension();

                int osmLineIDFieldIndex = osmLineFeatureClass.FindField("OSMID");
                Dictionary<string, int> osmLineDomainAttributeFieldIndices = new Dictionary<string, int>();
                foreach (var domains in availableDomains.domain)
                {
                    int currentFieldIndex = osmLineFeatureClass.FindField(domains.name);

                    if (currentFieldIndex != -1)
                    {
                        osmLineDomainAttributeFieldIndices.Add(domains.name, currentFieldIndex);
                    }
                }
                int tagCollectionPolylineFieldIndex = osmLineFeatureClass.FindField("osmTags");
                int osmUserPolylineFieldIndex = osmLineFeatureClass.FindField("osmuser");
                int osmUIDPolylineFieldIndex = osmLineFeatureClass.FindField("osmuid");
                int osmVisiblePolylineFieldIndex = osmLineFeatureClass.FindField("osmvisible");
                int osmVersionPolylineFieldIndex = osmLineFeatureClass.FindField("osmversion");
                int osmChangesetPolylineFieldIndex = osmLineFeatureClass.FindField("osmchangeset");
                int osmTimeStampPolylineFieldIndex = osmLineFeatureClass.FindField("osmtimestamp");
                int osmMemberOfPolylineFieldIndex = osmLineFeatureClass.FindField("osmMemberOf");
                int osmMembersPolylineFieldIndex = osmLineFeatureClass.FindField("osmMembers");
                int osmSupportingElementPolylineFieldIndex = osmLineFeatureClass.FindField("osmSupportingElement");


                // polygons
                try
                {
                    osmPolygonFeatureClass = osmToolHelper.CreatePolygonFeatureClass((IWorkspace2)featureWorkspace, targetFeatureDataset, targetDataElement.Name + "_osm_ply", null, null, null, storageKeyword, availableDomains, metadataAbstract, metadataPurpose, attributeTags[esriGeometryType.esriGeometryPolygon]);
                }
                catch (Exception ex)
                {
                    message.AddError(120037, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullpolygonfeatureclass"), ex.Message));
                    return;
                }

                if (osmPolygonFeatureClass == null)
                {
                    return;
                }

                // change the property set of the osm class extension to skip any change detection during the initial data load
                osmPolygonFeatureClass.RemoveOSMClassExtension();

                int osmPolygonIDFieldIndex = osmPolygonFeatureClass.FindField("OSMID");
                Dictionary<string, int> osmPolygonDomainAttributeFieldIndices = new Dictionary<string, int>();
                foreach (var domains in availableDomains.domain)
                {
                    int currentFieldIndex = osmPolygonFeatureClass.FindField(domains.name);

                    if (currentFieldIndex != -1)
                    {
                        osmPolygonDomainAttributeFieldIndices.Add(domains.name, currentFieldIndex);
                    }
                }
                int tagCollectionPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmTags");
                int osmUserPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmuser");
                int osmUIDPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmuid");
                int osmVisiblePolygonFieldIndex = osmPolygonFeatureClass.FindField("osmvisible");
                int osmVersionPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmversion");
                int osmChangesetPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmchangeset");
                int osmTimeStampPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmtimestamp");
                int osmMemberOfPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmMemberOf");
                int osmMembersPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmMembers");
                int osmSupportingElementPolygonFieldIndex = osmPolygonFeatureClass.FindField("osmSupportingElement");


                // relation table
                ITable relationTable = null;

                try
                {
                    relationTable = osmToolHelper.CreateRelationTable((IWorkspace2)featureWorkspace, targetDataElement.Name + "_osm_relation", null, storageKeyword, metadataAbstract, metadataPurpose);
                }
                catch (Exception ex)
                {
                    message.AddError(120038, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullrelationtable"), ex.Message));
                    return;
                }

                if (relationTable == null)
                {
                    return;
                }

                int osmRelationIDFieldIndex = relationTable.FindField("OSMID");
                int tagCollectionRelationFieldIndex = relationTable.FindField("osmTags");
                int osmUserRelationFieldIndex = relationTable.FindField("osmuser");
                int osmUIDRelationFieldIndex = relationTable.FindField("osmuid");
                int osmVisibleRelationFieldIndex = relationTable.FindField("osmvisible");
                int osmVersionRelationFieldIndex = relationTable.FindField("osmversion");
                int osmChangesetRelationFieldIndex = relationTable.FindField("osmchangeset");
                int osmTimeStampRelationFieldIndex = relationTable.FindField("osmtimestamp");
                int osmMemberOfRelationFieldIndex = relationTable.FindField("osmMemberOf");
                int osmMembersRelationFieldIndex = relationTable.FindField("osmMembers");
                int osmSupportingElementRelationFieldIndex = relationTable.FindField("osmSupportingElement");

                // revision table 
                ITable revisionTable = null;

                try
                {
                    revisionTable = osmToolHelper.CreateRevisionTable((IWorkspace2)featureWorkspace, targetDataElement.Name + "_osm_revision", null, storageKeyword);
                }
                catch (Exception ex)
                {
                    message.AddError(120039, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullrevisiontable"), ex.Message));
                    return;
                }

                if (revisionTable == null)
                {
                    return;
                }


                #region clean any existing data from loading targets
                ESRI.ArcGIS.Geoprocessing.IGeoProcessor2 gp = new ESRI.ArcGIS.Geoprocessing.GeoProcessorClass();
                IGeoProcessorResult gpResult = new GeoProcessorResultClass();

                try
                {
                    IVariantArray truncateParameters = new VarArrayClass();
                    truncateParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "\\" + targetDataElement.Name + "_osm_pt");
                    gpResult = gp.Execute("TruncateTable_management", truncateParameters, TrackCancel);

                    truncateParameters = new VarArrayClass();
                    truncateParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "\\" + targetDataElement.Name + "_osm_ln");
                    gpResult = gp.Execute("TruncateTable_management", truncateParameters, TrackCancel);

                    truncateParameters = new VarArrayClass();
                    truncateParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "\\" + targetDataElement.Name + "_osm_ply");
                    gpResult = gp.Execute("TruncateTable_management", truncateParameters, TrackCancel);

                    truncateParameters = new VarArrayClass();
                    truncateParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "_osm_relation");
                    gpResult = gp.Execute("TruncateTable_management", truncateParameters, TrackCancel);

                    truncateParameters = new VarArrayClass();
                    truncateParameters.Add(((IWorkspace)featureWorkspace).PathName + "\\" + targetDataElement.Name + "_osm_revision");
                    gpResult = gp.Execute("TruncateTable_management", truncateParameters, TrackCancel);
                }
                catch (Exception ex)
                {
                    message.AddWarning(ex.Message);
                }
                #endregion

                bool fastLoad = false;

                //// check for user interruption
                //if (TrackCancel.Continue() == false)
                //{
                //    message.AddAbort(resourceManager.GetString("GPTools_toolabort"));
                //    return;
                //}

                //IFeatureCursor deleteCursor = null;
                //using (ComReleaser comReleaser = new ComReleaser())
                //{
                //    // let's make sure that we clean out any old data that might have existed in the feature classes
                //    deleteCursor = osmPointFeatureClass.Update(null, false);
                //    comReleaser.ManageLifetime(deleteCursor);

                //    for (IFeature feature = deleteCursor.NextFeature(); feature != null; feature = deleteCursor.NextFeature())
                //    {
                //        feature.Delete();

                //        // check for user interruption
                //        if (TrackCancel.Continue() == false)
                //        {
                //            message.AddAbort(resourceManager.GetString("GPTools_toolabort"));
                //            return;
                //        }

                //    }
                //}

                //using (ComReleaser comReleaser = new ComReleaser())
                //{
                //    deleteCursor = osmLineFeatureClass.Update(null, false);
                //    comReleaser.ManageLifetime(deleteCursor);

                //    for (IFeature feature = deleteCursor.NextFeature(); feature != null; feature = deleteCursor.NextFeature())
                //    {
                //        feature.Delete();

                //        // check for user interruption
                //        if (TrackCancel.Continue() == false)
                //        {
                //            message.AddAbort(resourceManager.GetString("GPTools_toolabort"));
                //            return;
                //        }
                //    }
                //}

                //using (ComReleaser comReleaser = new ComReleaser())
                //{
                //    deleteCursor = osmPolygonFeatureClass.Update(null, false);
                //    comReleaser.ManageLifetime(deleteCursor);

                //    for (IFeature feature = deleteCursor.NextFeature(); feature != null; feature = deleteCursor.NextFeature())
                //    {
                //        feature.Delete();

                //        // check for user interruption
                //        if (TrackCancel.Continue() == false)
                //        {
                //            message.AddAbort(resourceManager.GetString("GPTools_toolabort"));
                //            return;
                //        }
                //    }
                //}

                //ICursor tableCursor = null;
                //using (ComReleaser comReleaser = new ComReleaser())
                //{
                //    tableCursor = relationTable.Update(null, false);
                //    comReleaser.ManageLifetime(tableCursor);

                //    for (IRow row = tableCursor.NextRow(); row != null; row = tableCursor.NextRow())
                //    {
                //        row.Delete();

                //        // check for user interruption
                //        if (TrackCancel.Continue() == false)
                //        {
                //            message.AddAbort(resourceManager.GetString("GPTools_toolabort"));
                //            return;
                //        }
                //    }
                //}

                //using (ComReleaser comReleaser = new ComReleaser())
                //{
                //    tableCursor = revisionTable.Update(null, false);
                //    comReleaser.ManageLifetime(tableCursor);

                //    for (IRow row = tableCursor.NextRow(); row != null; row = tableCursor.NextRow())
                //    {
                //        row.Delete();

                //        // check for user interruption
                //        if (TrackCancel.Continue() == false)
                //        {
                //            message.AddAbort(resourceManager.GetString("GPTools_toolabort"));
                //            return;
                //        }
                //    }
                //}

                // define variables helping to invoke core tools for data management
                IGeoProcessorResult2 gpResults2 = null;

                IGeoProcessor2 geoProcessor = new GeoProcessorClass();

                #region load points
                osmToolHelper.loadOSMNodes(osmFileLocationString.GetAsText(), ref TrackCancel, ref message, targetDatasetGPValue, osmPointFeatureClass, conserveMemoryGPValue.Value, fastLoad, Convert.ToInt32(nodeCapacity), ref osmNodeDictionary, featureWorkspace, downloadSpatialReference, availableDomains, false);
                #endregion


                if (TrackCancel.Continue() == false)
                {
                    return;
                }

                #region load ways
                List<string> missingWays = osmToolHelper.loadOSMWays(osmFileLocationString.GetAsText(), ref TrackCancel, ref message, targetDatasetGPValue, osmPointFeatureClass, osmLineFeatureClass, osmPolygonFeatureClass, conserveMemoryGPValue.Value, fastLoad, Convert.ToInt32(wayCapacity), ref osmNodeDictionary, featureWorkspace, downloadSpatialReference, availableDomains, false);
                #endregion

                if (downloadSpatialReference != null)
                    Marshal.ReleaseComObject(downloadSpatialReference);

                #region for local geodatabases enforce spatial integrity

                bool storedOriginalLocal = geoProcessor.AddOutputsToMap;
                geoProcessor.AddOutputsToMap = false;

                if (osmLineFeatureClass != null)
                {
                    if (((IDataset)osmLineFeatureClass).Workspace.Type == esriWorkspaceType.esriLocalDatabaseWorkspace)
                    {
                        gpUtilities3 = new GPUtilitiesClass() as IGPUtilities3;

                        IGPParameter outLinesParameter = paramvalues.get_Element(out_osmLinesNumber) as IGPParameter;
                        IGPValue lineFeatureClass = gpUtilities3.UnpackGPValue(outLinesParameter);

                        DataManagementTools.RepairGeometry repairlineGeometry = new DataManagementTools.RepairGeometry(osmLineFeatureClass);

                        IVariantArray repairGeometryParameterArray = new VarArrayClass();
                        repairGeometryParameterArray.Add(lineFeatureClass.GetAsText());
                        repairGeometryParameterArray.Add("DELETE_NULL");

                        gpResults2 = geoProcessor.Execute(repairlineGeometry.ToolName, repairGeometryParameterArray, TrackCancel) as IGeoProcessorResult2;
                        message.AddMessages(gpResults2.GetResultMessages());

                        ComReleaser.ReleaseCOMObject(gpUtilities3);
                    }
                }

                if (osmPolygonFeatureClass != null)
                {
                    if (((IDataset)osmPolygonFeatureClass).Workspace.Type == esriWorkspaceType.esriLocalDatabaseWorkspace)
                    {
                        gpUtilities3 = new GPUtilitiesClass() as IGPUtilities3;

                        IGPParameter outPolygonParameter = paramvalues.get_Element(out_osmPolygonsNumber) as IGPParameter;
                        IGPValue polygonFeatureClass = gpUtilities3.UnpackGPValue(outPolygonParameter);

                        DataManagementTools.RepairGeometry repairpolygonGeometry = new DataManagementTools.RepairGeometry(osmPolygonFeatureClass);

                        IVariantArray repairGeometryParameterArray = new VarArrayClass();
                        repairGeometryParameterArray.Add(polygonFeatureClass.GetAsText());
                        repairGeometryParameterArray.Add("DELETE_NULL");

                        gpResults2 = geoProcessor.Execute(repairpolygonGeometry.ToolName, repairGeometryParameterArray, TrackCancel) as IGeoProcessorResult2;
                        message.AddMessages(gpResults2.GetResultMessages());

                        ComReleaser.ReleaseCOMObject(gpUtilities3);
                    }
                }

                geoProcessor.AddOutputsToMap = storedOriginalLocal;

                #endregion


                if (TrackCancel.Continue() == false)
                {
                    return;
                }

                #region load relations
                List<string> missingRelations = osmToolHelper.loadOSMRelations(osmFileLocationString.GetAsText(), ref TrackCancel, ref message, targetDatasetGPValue, osmPointFeatureClass, osmLineFeatureClass, osmPolygonFeatureClass, Convert.ToInt32(relationCapacity), relationTable, availableDomains, fastLoad, false);
                #endregion

                // check for user interruption
                if (TrackCancel.Continue() == false)
                {
                    return;
                }

                //storedOriginalLocal = geoProcessor.AddOutputsToMap;
                //try
                //{
                //    geoProcessor.AddOutputsToMap = false;

                //    // add indexes for revisions
                //    //IGPValue revisionTableGPValue = gpUtilities3.MakeGPValueFromObject(revisionTable);
                //    string revisionTableString = targetDatasetGPValue.GetAsText() + System.IO.Path.DirectorySeparatorChar + ((IDataset)revisionTable).BrowseName;
                //    IVariantArray parameterArrary2 = osmToolHelper.CreateAddIndexParameterArray(revisionTableString, "osmoldid;osmnewid", "osmID_IDX", "", "");
                //    gpResults2 = geoProcessor.Execute("AddIndex_management", parameterArrary2, TrackCancel) as IGeoProcessorResult2;

                //    message.AddMessages(gpResults2.GetResultMessages());
                //}
                //catch (Exception ex)
                //{
                //    message.AddWarning(ex.Message);
                //}
                //finally
                //{
                //    geoProcessor.AddOutputsToMap = storedOriginalLocal;
                //}


                #region update the references counts and member lists for nodes

                message.AddMessage(resourceManager.GetString("GPTools_OSMGPFileReader_updatereferences"));
                IFeatureCursor pointUpdateCursor = null;

                IQueryFilter pointQueryFilter = new QueryFilterClass();

                // adjust of number of all other reference counter from 0 to 1
                if (conserveMemoryGPValue.Value == true)
                {
                    pointQueryFilter.WhereClause = osmPointFeatureClass.SqlIdentifier("wayRefCount") + " = 0";
                    pointQueryFilter.SubFields = osmPointFeatureClass.OIDFieldName + ",wayRefCount";
                }

                using (SchemaLockManager ptLockManager = new SchemaLockManager(osmPointFeatureClass as ITable))
                {
                    using (ComReleaser comReleaser = new ComReleaser())
                    {
                        int updateCount = 0;
                        if (conserveMemoryGPValue.Value == true)
                        {
                            pointUpdateCursor = osmPointFeatureClass.Update(pointQueryFilter, false);
                            updateCount = ((ITable)osmPointFeatureClass).RowCount(pointQueryFilter);
                        }
                        else
                        {
                            pointUpdateCursor = osmPointFeatureClass.Update(null, false);
                            updateCount = ((ITable)osmPointFeatureClass).RowCount(null);
                        }

                        IStepProgressor stepProgressor = TrackCancel as IStepProgressor;

                        if (stepProgressor != null)
                        {
                            stepProgressor.MinRange = 0;
                            stepProgressor.MaxRange = updateCount;
                            stepProgressor.Position = 0;
                            stepProgressor.Message = resourceManager.GetString("GPTools_OSMGPFileReader_updatepointrefcount");
                            stepProgressor.StepValue = 1;
                            stepProgressor.Show();
                        }

                        comReleaser.ManageLifetime(pointUpdateCursor);

                        IFeature pointFeature = pointUpdateCursor.NextFeature();

                        int positionCounter = 0;
                        while (pointFeature != null)
                        {
                            positionCounter++;
                            string nodeID = Convert.ToString(pointFeature.get_Value(osmPointIDFieldIndex));

                            if (conserveMemoryGPValue.Value == false)
                            {
                                // let get the reference counter from the internal node dictionary
                                if (osmNodeDictionary[nodeID].RefCounter == 0)
                                {
                                    pointFeature.set_Value(osmWayRefCountFieldIndex, 1);
                                }
                                else
                                {
                                    pointFeature.set_Value(osmWayRefCountFieldIndex, osmNodeDictionary[nodeID].RefCounter);
                                }
                            }
                            else
                            {
                                // in the case of memory conservation let's go change the 0s to 1s
                                pointFeature.set_Value(osmWayRefCountFieldIndex, 1);
                            }

                            pointUpdateCursor.UpdateFeature(pointFeature);

                            if (pointFeature != null)
                                Marshal.ReleaseComObject(pointFeature);

                            pointFeature = pointUpdateCursor.NextFeature();

                            if (stepProgressor != null)
                            {
                                stepProgressor.Position = positionCounter;
                            }
                        }

                        if (stepProgressor != null)
                        {
                            stepProgressor.Hide();
                        }

                        Marshal.ReleaseComObject(pointQueryFilter);
                    }
                }

                #endregion

                if (osmNodeDictionary != null)
                {
                    // clear outstanding resources potentially holding points
                    osmNodeDictionary = null;
                    System.GC.Collect(2, GCCollectionMode.Forced);
                }

                if (missingRelations.Count > 0)
                {
                    missingRelations.Clear();
                    missingRelations = null;
                }

                if (missingWays.Count > 0)
                {
                    missingWays.Clear();
                    missingWays = null;
                }

                SyncState.StoreLastSyncTime(targetDatasetName, syncTime);

                gpUtilities3 = new GPUtilitiesClass() as IGPUtilities3;

                // repackage the feature class into their respective gp values
                IGPParameter pointFeatureClassParameter = paramvalues.get_Element(out_osmPointsNumber) as IGPParameter;
                IGPValue pointFeatureClassGPValue = gpUtilities3.UnpackGPValue(pointFeatureClassParameter);
                gpUtilities3.PackGPValue(pointFeatureClassGPValue, pointFeatureClassParameter);

                IGPParameter lineFeatureClassParameter = paramvalues.get_Element(out_osmLinesNumber) as IGPParameter;
                IGPValue line1FeatureClassGPValue = gpUtilities3.UnpackGPValue(lineFeatureClassParameter);
                gpUtilities3.PackGPValue(line1FeatureClassGPValue, lineFeatureClassParameter);

                IGPParameter polygonFeatureClassParameter = paramvalues.get_Element(out_osmPolygonsNumber) as IGPParameter;
                IGPValue polygon1FeatureClassGPValue = gpUtilities3.UnpackGPValue(polygonFeatureClassParameter);
                gpUtilities3.PackGPValue(polygon1FeatureClassGPValue, polygonFeatureClassParameter);

                ComReleaser.ReleaseCOMObject(relationTable);
                ComReleaser.ReleaseCOMObject(revisionTable);

                ComReleaser.ReleaseCOMObject(targetFeatureDataset);
                ComReleaser.ReleaseCOMObject(featureWorkspace);

                ComReleaser.ReleaseCOMObject(osmFileLocationString);
                ComReleaser.ReleaseCOMObject(conserveMemoryGPValue);
                ComReleaser.ReleaseCOMObject(targetDataset);

                gpUtilities3.ReleaseInternals();
                ComReleaser.ReleaseCOMObject(gpUtilities3);
            }
            catch (Exception ex)
            {
                message.AddError(120055, ex.Message);
                message.AddError(120055, ex.StackTrace);
            }
            finally
            {
                try
                {
                    // TE -- 1/7/2015
                    // this is a 'breaking' change as the default loader won't no longer enable the edit extension
                    // the reasoning here is that most users would like the OSM in a 'read-only' fashion, and don't need to track 
                    // changes to be properly transmitted back to the OSM server
                    //if (osmPointFeatureClass != null)
                    //{
                    //    osmPointFeatureClass.ApplyOSMClassExtension();
                    //    ComReleaser.ReleaseCOMObject(osmPointFeatureClass);
                    //}

                    //if (osmLineFeatureClass != null)
                    //{
                    //    osmLineFeatureClass.ApplyOSMClassExtension();
                    //    ComReleaser.ReleaseCOMObject(osmLineFeatureClass);
                    //}

                    //if (osmPolygonFeatureClass != null)
                    //{
                    //    osmPolygonFeatureClass.ApplyOSMClassExtension();
                    //    ComReleaser.ReleaseCOMObject(osmPolygonFeatureClass);
                    //}

                    osmToolHelper = null;

                    System.GC.Collect();
                    System.GC.WaitForPendingFinalizers();
                }
                catch (Exception ex)
                {
                    message.AddError(120056, ex.ToString());
                }
            }
        }
        public void UpdateParameters(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager pEnvMgr)
        {
            IGPUtilities3 gpUtilities3 = new GPUtilitiesClass();

            IGPParameter targetDatasetParameter = paramvalues.get_Element(out_targetDatasetNumber) as IGPParameter;
            IGPValue targetDatasetGPValue = gpUtilities3.UnpackGPValue(targetDatasetParameter);

            IDEFeatureDataset targetDEFeatureDataset = targetDatasetGPValue as IDEFeatureDataset;

            IGPParameter3 outPointsFeatureClassParameter = null;
            IGPValue outPointsFeatureClass = null;
            string outpointsPath = String.Empty;

            IGPParameter3 outLinesFeatureClassParameter = null;
            IGPValue outLinesFeatureClass = null;
            string outlinesPath = String.Empty;

            IGPParameter3 outPolygonFeatureClassParameter = null;
            IGPValue outPolygonFeatureClass = null;
            string outpolygonsPath = String.Empty;

            if (((IGPValue)targetDEFeatureDataset).GetAsText().Length != 0)
            {
                IDataElement dataElement = targetDEFeatureDataset as IDataElement;
                try
                {
                    gpUtilities3.QualifyOutputDataElement(gpUtilities3.UnpackGPValue(targetDatasetParameter));
                }
                catch
                {
                    return;
                }

                string nameOfPointFeatureClass = dataElement.GetBaseName() + "_osm_pt";
                string nameOfLineFeatureClass = dataElement.GetBaseName() + "_osm_ln";
                string nameOfPolygonFeatureClass = dataElement.GetBaseName() + "_osm_ply";


                try
                {
                    outpointsPath = dataElement.CatalogPath + System.IO.Path.DirectorySeparatorChar + nameOfPointFeatureClass;
                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine(ex.Message);
                }
                outPointsFeatureClassParameter = paramvalues.get_Element(out_osmPointsNumber) as IGPParameter3;
                outPointsFeatureClass = gpUtilities3.UnpackGPValue(outPointsFeatureClassParameter);

                outlinesPath = dataElement.CatalogPath + System.IO.Path.DirectorySeparatorChar + nameOfLineFeatureClass;
                outLinesFeatureClassParameter = paramvalues.get_Element(out_osmLinesNumber) as IGPParameter3;
                outLinesFeatureClass = gpUtilities3.UnpackGPValue(outLinesFeatureClassParameter);

                outpolygonsPath = dataElement.CatalogPath + System.IO.Path.DirectorySeparatorChar + nameOfPolygonFeatureClass;
                outPolygonFeatureClassParameter = paramvalues.get_Element(out_osmPolygonsNumber) as IGPParameter3;
                outPolygonFeatureClass = gpUtilities3.UnpackGPValue(outPolygonFeatureClassParameter);
            }


            // TE - 10/20/2014
            if (((IGPParameter)paramvalues.get_Element(in_attributeSelector)).Altered)
            {
                IGPParameter tagCollectionParameter = paramvalues.get_Element(in_attributeSelector) as IGPParameter;
                IGPMultiValue tagCollectionGPValue = gpUtilities3.UnpackGPValue(tagCollectionParameter) as IGPMultiValue;

                IGPCodedValueDomain codedTagDomain = tagCollectionParameter.Domain as IGPCodedValueDomain;

                for (int attributeValueIndex = 0; attributeValueIndex < tagCollectionGPValue.Count; attributeValueIndex++)
                {
                    string valueString = tagCollectionGPValue.get_Value(attributeValueIndex).GetAsText();
                    IGPValue testFieldValue = codedTagDomain.FindValue(valueString);

                    if (testFieldValue == null)
                    {
                        codedTagDomain.AddStringCode(valueString, valueString);
                    }
                }

                string illegalCharacters = "`~@#$%^&()-+=,{}.![];";
                IFieldsEdit fieldsEdit = new FieldsClass();

                for (int valueIndex = 0; valueIndex < tagCollectionGPValue.Count; valueIndex++)
                {
                    string tagString = tagCollectionGPValue.get_Value(valueIndex).GetAsText();

                    if (tagString != "ALL")
                    {
                        // Check if the input field already exists.
                        string cleanedTagKey = OSMToolHelper.convert2AttributeFieldName(tagString, illegalCharacters);

                        IFieldEdit fieldEdit = new FieldClass();
                        fieldEdit.Name_2 = cleanedTagKey;
                        fieldEdit.AliasName_2 = tagCollectionGPValue.get_Value(valueIndex).GetAsText();
                        fieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
                        fieldEdit.Length_2 = 100;
                        fieldsEdit.AddField(fieldEdit);
                    }
                }
                IFields fields = fieldsEdit as IFields;

                // Get the derived output feature class schema and empty the additional fields. This ensures 
                // that you don't get dublicate entries. 
                if (outPointsFeatureClassParameter != null)
                {
                    IGPFeatureSchema polySchema = outPolygonFeatureClassParameter.Schema as IGPFeatureSchema;
                    if (polySchema != null)
                    {
                        // Add the additional field to the polygon output.
                        polySchema.AdditionalFields = fields;
                    }
                    else
                    {
                        polySchema = new GPFeatureSchemaClass();
                        polySchema.AdditionalFields = fields;
                        polySchema.GeometryType = esriGeometryType.esriGeometryPolygon;
                        polySchema.FeatureType = esriFeatureType.esriFTSimple;
                    }
                }

                if (outLinesFeatureClassParameter != null)
                {
                    IGPFeatureSchema lineSchema = outLinesFeatureClassParameter.Schema as IGPFeatureSchema;
                    if (lineSchema != null)
                    {
                        // Add the additional field to the line output.
                        lineSchema.AdditionalFields = fields;
                    }
                    else
                    {
                        lineSchema = new GPFeatureSchemaClass();
                        lineSchema.AdditionalFields = fields;
                        lineSchema.GeometryType = esriGeometryType.esriGeometryPolyline;
                        lineSchema.FeatureType = esriFeatureType.esriFTSimple;
                    }
                }


                if (outPointsFeatureClassParameter != null)
                {
                    IGPFeatureSchema pointSchema = outPointsFeatureClassParameter.Schema as IGPFeatureSchema;
                    if (pointSchema != null)
                    {
                        // Add the additional field to the point output.
                        pointSchema.AdditionalFields = fields;
                    }
                    else
                    {
                        pointSchema = new GPFeatureSchemaClass();
                        pointSchema.AdditionalFields = fields;
                        pointSchema.GeometryType = esriGeometryType.esriGeometryPoint;
                        pointSchema.FeatureType = esriFeatureType.esriFTSimple;
                    }
                }
            }

            if (outPointsFeatureClassParameter != null)
            {
                outPointsFeatureClass.SetAsText(outpointsPath);
                gpUtilities3.PackGPValue(outPointsFeatureClass, outPointsFeatureClassParameter);
            }

            if (outLinesFeatureClassParameter != null)
            {
                outLinesFeatureClass.SetAsText(outlinesPath);
                gpUtilities3.PackGPValue(outLinesFeatureClass, outLinesFeatureClassParameter);
            }

            if (outPolygonFeatureClassParameter != null)
            {
                outPolygonFeatureClass.SetAsText(outpolygonsPath);
                gpUtilities3.PackGPValue(outPolygonFeatureClass, outPolygonFeatureClassParameter);
            }

            gpUtilities3.ReleaseInternals();

            if (gpUtilities3 != null)
                ComReleaser.ReleaseCOMObject(gpUtilities3);
        }
        public void UpdateMessages(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager pEnvMgr, ESRI.ArcGIS.Geodatabase.IGPMessages Messages)
        {
            IGPUtilities3 gpUtilities3 = new GPUtilitiesClass();

            IGPParameter targetDatasetParameter = paramvalues.get_Element(out_targetDatasetNumber) as IGPParameter;
            try
            {
                gpUtilities3.QualifyOutputDataElement(gpUtilities3.UnpackGPValue(targetDatasetParameter));
            }
            catch
            {
                Messages.ReplaceError(out_targetDatasetNumber, -2, resourceManager.GetString("GPTools_OSMGPFileReader_targetDataset_notexist"));
            }

            // check for valid geodatabase path
            // if the user is pointing to a valid directory on disk, flag it as an error
            IGPValue targetDatasetGPValue = gpUtilities3.UnpackGPValue(targetDatasetParameter);

            if (targetDatasetGPValue.IsEmpty() == false)
            {
                if (System.IO.Directory.Exists(targetDatasetGPValue.GetAsText()))
                {
                    Messages.ReplaceError(out_targetDatasetNumber, -4, resourceManager.GetString("GPTools_OSMGPDownload_directory_is_not_target_dataset"));
                }
            }

            // check one of the output feature classes for version compatibility
            IGPParameter pointFeatureClassParameter = paramvalues.get_Element(out_osmPointsNumber) as IGPParameter;
            IDEFeatureClass pointDEFeatureClass = gpUtilities3.UnpackGPValue(pointFeatureClassParameter) as IDEFeatureClass;

            if (pointDEFeatureClass != null)
            {
                if (((IGPValue)pointDEFeatureClass).IsEmpty() == false)
                {
                    if (gpUtilities3.Exists((IGPValue)pointDEFeatureClass))
                    {
                        IFeatureClass ptfc = gpUtilities3.Open(gpUtilities3.UnpackGPValue(pointFeatureClassParameter)) as IFeatureClass;
                        IPropertySet osmExtensionPropertySet = ptfc.ExtensionProperties;

                        if (osmExtensionPropertySet == null)
                        {
                            Messages.ReplaceError(out_targetDatasetNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), 1, OSMClassExtensionManager.Version));
                            Messages.ReplaceError(out_osmPointsNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), 1, OSMClassExtensionManager.Version));
                            Messages.ReplaceError(out_osmLinesNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), 1, OSMClassExtensionManager.Version));
                            Messages.ReplaceError(out_osmPolygonsNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), 1, OSMClassExtensionManager.Version));
                        }
                        else
                        {
                            try
                            {
                                int extensionVersion = Convert.ToInt32(osmExtensionPropertySet.GetProperty("VERSION"));

                                if (extensionVersion != OSMClassExtensionManager.Version)
                                {
                                    Messages.ReplaceError(out_targetDatasetNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), extensionVersion, OSMClassExtensionManager.Version));
                                    Messages.ReplaceError(out_osmPointsNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), extensionVersion, OSMClassExtensionManager.Version));
                                    Messages.ReplaceError(out_osmLinesNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), extensionVersion, OSMClassExtensionManager.Version));
                                    Messages.ReplaceError(out_osmPolygonsNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), extensionVersion, OSMClassExtensionManager.Version));
                                }
                            }
                            catch
                            {
                                Messages.ReplaceError(out_targetDatasetNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), 1, OSMClassExtensionManager.Version));
                                Messages.ReplaceError(out_osmPointsNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), 1, OSMClassExtensionManager.Version));
                                Messages.ReplaceError(out_osmLinesNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), 1, OSMClassExtensionManager.Version));
                                Messages.ReplaceError(out_osmPolygonsNumber, -5, string.Format(resourceManager.GetString("GPTools_IncompatibleExtensionVersion"), 1, OSMClassExtensionManager.Version));
                            }
                        }
                    }
                }
            }

            gpUtilities3.ReleaseInternals();

            if (gpUtilities3 != null)
                ComReleaser.ReleaseCOMObject(gpUtilities3);

        }
        public void Execute(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.esriSystem.ITrackCancel TrackCancel, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager envMgr, ESRI.ArcGIS.Geodatabase.IGPMessages message)
        {
            try
            {
                IGPUtilities3 execute_Utilities = new GPUtilitiesClass();

                if (TrackCancel == null)
                {
                    TrackCancel = new CancelTrackerClass();
                }

                IGPParameter inputOSMParameter = paramvalues.get_Element(in_osmFeatureClass) as IGPParameter;
                IGPValue inputOSMGPValue = execute_Utilities.UnpackGPValue(inputOSMParameter);

                IGPParameter tagCollectionParameter = paramvalues.get_Element(in_attributeSelector) as IGPParameter;
                IGPMultiValue tagCollectionGPValue = execute_Utilities.UnpackGPValue(tagCollectionParameter) as IGPMultiValue;

                if (tagCollectionGPValue == null)
                {
                    message.AddError(120048, string.Format(resourceManager.GetString("GPTools_NullPointerParameterType"), tagCollectionParameter.Name));
                    return;
                }

                bool useUpdateCursor = false;

                IFeatureClass osmFeatureClass = null;
                ITable osmInputTable = null;
                IQueryFilter osmQueryFilter = null;

                try
                {
                    execute_Utilities.DecodeFeatureLayer(inputOSMGPValue, out osmFeatureClass, out osmQueryFilter);
                    if (osmFeatureClass != null)
                    {
                        if (osmFeatureClass.Extension is IOSMClassExtension)
                        {
                            useUpdateCursor = false;
                        }
                        else
                        {
                            useUpdateCursor = true;
                        }
                    }

                    osmInputTable = osmFeatureClass as ITable;
                }
                catch { }

                try
                {
                    if (osmInputTable == null)
                    {
                        execute_Utilities.DecodeTableView(inputOSMGPValue, out osmInputTable, out osmQueryFilter);
                    }
                }
                catch { }

                if (osmInputTable == null)
                {
                    string errorMessage = String.Format(resourceManager.GetString("GPTools_OSMGPAttributeSelecto_unableopentable"), inputOSMGPValue.GetAsText());
                    message.AddError(120053, errorMessage);
                    return;
                }

                // find the field that holds tag binary/xml field
                int osmTagCollectionFieldIndex = osmInputTable.FindField("osmTags");

                // if the Field doesn't exist - wasn't found (index = -1) get out
                if (osmTagCollectionFieldIndex == -1)
                {
                    message.AddError(120005, resourceManager.GetString("GPTools_OSMGPAttributeSelector_notagfieldfound"));
                    return;
                }

                // check if the tag collection includes the keyword "ALL", if does then we'll need to extract all tags
                bool extractAll = false;
                for (int valueIndex = 0; valueIndex < tagCollectionGPValue.Count; valueIndex++)
                {
                    if (tagCollectionGPValue.get_Value(valueIndex).GetAsText().Equals("ALL"))
                    {
                        extractAll = true;
                        break;
                    }
                }
                //if (extractAll)
                //{
                //    if (osmTagKeyCodedValues == null)
                //        extractAllTags(ref osmTagKeyCodedValues, osmInputTable, osmQueryFilter, osmTagCollectionFieldIndex, false);

                //    if (osmTagKeyCodedValues == null)
                //    {
                //        message.AddAbort(resourceManager.GetString("GPTools_OSMGPAttributeSelector_Unable2RetrieveTags"));
                //        return;
                //    }

                //    // empty the existing gp multivalue object
                //    tagCollectionGPValue = new GPMultiValueClass();

                //    // fill the coded domain in gp multivalue object
                //    for (int valueIndex = 0; valueIndex < osmTagKeyCodedValues.CodeCount; valueIndex++)
                //    {
                //        tagCollectionGPValue.AddValue(osmTagKeyCodedValues.get_Value(valueIndex));
                //    }
                //}

                // get an overall feature count as that determines the progress indicator
                int featureCount = osmInputTable.RowCount(osmQueryFilter);

                // set up the progress indicator
                IStepProgressor stepProgressor = TrackCancel as IStepProgressor;

                if (stepProgressor != null)
                {
                    stepProgressor.MinRange = 0;
                    stepProgressor.MaxRange = featureCount;
                    stepProgressor.Position = 0;
                    stepProgressor.Message = resourceManager.GetString("GPTools_OSMGPAttributeSelector_progressMessage");
                    stepProgressor.StepValue = 1;
                    stepProgressor.Show();
                }

                // let's get all the indices of the desired fields
                // if the field already exists get the index and if it doesn't exist create it
                Dictionary<string, int> tagsAttributesIndices = new Dictionary<string, int>();
                Dictionary<int, int> attributeFieldLength = new Dictionary<int, int>();

                IFeatureWorkspaceManage featureWorkspaceManage = ((IDataset)osmInputTable).Workspace as IFeatureWorkspaceManage;

                String illegalCharacters = String.Empty;

                ISQLSyntax sqlSyntax = ((IDataset)osmInputTable).Workspace as ISQLSyntax;
                if (sqlSyntax != null)
                {
                    illegalCharacters = sqlSyntax.GetInvalidCharacters();
                }

                IFieldsEdit fieldsEdit = osmInputTable.Fields as IFieldsEdit;

                using (SchemaLockManager lockMgr = new SchemaLockManager(osmInputTable))
                {
                    try
                    {
                        string tagKey = String.Empty;
                        ESRI.ArcGIS.Geoprocessing.IGeoProcessor2 gp = new ESRI.ArcGIS.Geoprocessing.GeoProcessorClass();

                        // if we have explicitly defined tags to extract then go through the list of values now
                        if (extractAll == false)
                        {
                            for (int valueIndex = 0; valueIndex < tagCollectionGPValue.Count; valueIndex++)
                            {
                                if (TrackCancel.Continue() == false)
                                    return;

                                try
                                {
                                    // Check if the input field already exists.
                                    string nameofTag = tagCollectionGPValue.get_Value(valueIndex).GetAsText();
                                    tagKey = convert2AttributeFieldName(nameofTag, illegalCharacters);

                                    int fieldIndex = osmInputTable.FindField(tagKey);

                                    if (fieldIndex < 0)
                                    {
                                        // generate a new attribute field
                                        IFieldEdit fieldEdit = new FieldClass();
                                        fieldEdit.Name_2 = tagKey;
                                        fieldEdit.AliasName_2 = nameofTag + resourceManager.GetString("GPTools_OSMGPAttributeSelector_aliasaddition");
                                        fieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
                                        fieldEdit.Length_2 = 100;

                                        osmInputTable.AddField(fieldEdit);

                                        message.AddMessage(string.Format(resourceManager.GetString("GPTools_OSMGPAttributeSelector_addField"), tagKey, nameofTag));

                                        // re-generate the attribute index
                                        fieldIndex = osmInputTable.FindField(tagKey);
                                    }

                                    if (fieldIndex > 0)
                                    {
                                        tagsAttributesIndices.Add(nameofTag, fieldIndex);
                                        attributeFieldLength.Add(fieldIndex, osmInputTable.Fields.get_Field(fieldIndex).Length);
                                    }
                                }
                                catch (Exception ex)
                                {
                                    // the key is already there, this might result because from multiple upper and lower-case combinations of the same key
                                    message.AddWarning(ex.Message + " (" + convert2OSMKey(tagKey, illegalCharacters) + ")");
                                }
                            }
                        }
                        else
                        {
                            List<string> listofAllTags = extractAllTags(osmInputTable, osmQueryFilter, osmTagCollectionFieldIndex);

                            foreach (string nameOfTag in listofAllTags)
                            {
                                if (TrackCancel.Continue() == false)
                                    return;

                                try
                                {
                                    // Check if the input field already exists.
                                    tagKey = convert2AttributeFieldName(nameOfTag, illegalCharacters);

                                    int fieldIndex = osmInputTable.FindField(tagKey);

                                    if (fieldIndex < 0)
                                    {
                                        // generate a new attribute field
                                        IFieldEdit fieldEdit = new FieldClass();
                                        fieldEdit.Name_2 = tagKey;
                                        fieldEdit.AliasName_2 = nameOfTag + resourceManager.GetString("GPTools_OSMGPAttributeSelector_aliasaddition");
                                        fieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
                                        fieldEdit.Length_2 = 100;

                                        osmInputTable.AddField(fieldEdit);

                                        message.AddMessage(string.Format(resourceManager.GetString("GPTools_OSMGPAttributeSelector_addField"), tagKey, nameOfTag));

                                        // re-generate the attribute index
                                        fieldIndex = osmInputTable.FindField(tagKey);
                                    }

                                    if (fieldIndex > 0)
                                    {
                                        tagsAttributesIndices.Add(nameOfTag, fieldIndex);
                                        attributeFieldLength.Add(fieldIndex, osmInputTable.Fields.get_Field(fieldIndex).Length);
                                    }
                                }
                                catch (Exception ex)
                                {
                                    // the key is already there, this might result because from multiple upper and lower-case combinations of the same key
                                    message.AddWarning(ex.Message + " (" + convert2OSMKey(tagKey, illegalCharacters) + ")");
                                }
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        message.AddWarning(ex.Message);
                    }
                }

                try
                {
                    execute_Utilities.DecodeFeatureLayer(inputOSMGPValue, out osmFeatureClass, out osmQueryFilter);
                    if (osmFeatureClass != null)
                    {
                        if (osmFeatureClass.Extension is IOSMClassExtension)
                        {
                            useUpdateCursor = false;
                        }
                        else
                        {
                            useUpdateCursor = true;
                        }
                    }

                    osmInputTable = osmFeatureClass as ITable;
                }
                catch { }

                try
                {
                    if (osmInputTable == null)
                    {
                        execute_Utilities.DecodeTableView(inputOSMGPValue, out osmInputTable, out osmQueryFilter);
                    }
                }
                catch { }

                if (osmInputTable == null)
                {
                    string errorMessage = String.Format(resourceManager.GetString("GPTools_OSMGPAttributeSelecto_unableopentable"), inputOSMGPValue.GetAsText());
                    message.AddError(120053, errorMessage);
                    return;
                }

                using (ComReleaser comReleaser = new ComReleaser())
                {

                    using (SchemaLockManager lockMgr = new SchemaLockManager(osmInputTable))
                    {
                        // get an update cursor for all the features to process
                        ICursor rowCursor = null;
                        if (useUpdateCursor)
                        {
                            rowCursor = osmInputTable.Update(osmQueryFilter, false);
                        }
                        else
                        {
                            rowCursor = osmInputTable.Search(osmQueryFilter, false);
                        }

                        comReleaser.ManageLifetime(rowCursor);

                        IRow osmRow = null;

                        Dictionary<string, string> tagKeys = new Dictionary<string, string>();
                        int progessIndex = 0;
            #if DEBUG
                        message.AddMessage("useUpdateCursor: " + useUpdateCursor.ToString());
            #endif

                        // as long as there are features....
                        while ((osmRow = rowCursor.NextRow()) != null)
                        {
                            // retrieve the tags of the current feature
                            tag[] storedTags = _osmUtility.retrieveOSMTags(osmRow, osmTagCollectionFieldIndex, ((IDataset)osmInputTable).Workspace);

                            bool rowChanged = false;
                            if (storedTags != null)
                            {
                                foreach (tag tagItem in storedTags)
                                {
                                    // Check for matching values so we only change a minimum number of rows
                                    if (tagsAttributesIndices.ContainsKey(tagItem.k))
                                    {
                                        int fieldIndex = tagsAttributesIndices[tagItem.k];

                                        //...then stored the value in the attribute field
                                        // ensure that the content of the tag actually does fit into the field length...otherwise do truncate it
                                        string tagValue = tagItem.v;

                                        int fieldLength = attributeFieldLength[fieldIndex];

                                        if (tagValue.Length > fieldLength)
                                            tagValue = tagValue.Substring(0, fieldLength);

                                        osmRow.set_Value(fieldIndex, tagValue);
                                        rowChanged = true;
                                    }
                                    else
                                    {
            #if DEBUG
                                        //message.AddWarning(tagItem.k);
            #endif
                                    }
                                }
                            }

                            storedTags = null;

                            try
                            {
                                if (rowChanged)
                                {
                                    if (useUpdateCursor)
                                    {
                                        rowCursor.UpdateRow(osmRow);
                                    }
                                    else
                                    {
                                        // update the feature through the cursor
                                        osmRow.Store();
                                    }
                                }
                                progessIndex++;
                            }
                            catch (Exception ex)
                            {
                                System.Diagnostics.Debug.WriteLine(ex.Message);
                                message.AddWarning(ex.Message);
                            }

                            if (osmRow != null)
                            {
                                Marshal.ReleaseComObject(osmRow);
                            }

                            if (stepProgressor != null)
                            {
                                // update the progress UI
                                stepProgressor.Position = progessIndex;
                            }

                            // check for user cancellation (every 100 rows)
                            if ((progessIndex % 100 == 0) && (TrackCancel.Continue() == false))
                            {
                                return;
                            }
                        }

                        if (stepProgressor != null)
                        {
                            stepProgressor.Hide();
                        }
                    }
                }

                execute_Utilities.ReleaseInternals();
                Marshal.ReleaseComObject(execute_Utilities);
            }
            catch (Exception ex)
            {
                message.AddError(120054, ex.Message);
            }
        }