예제 #1
0
        public IGPMessage ValidateValue(IGPValue Value, IGPDomain Domain)
        {
            IGPMessage    validateValueMessage = new GPMessageClass();
            IGPUtilities3 gpUtilities          = new GPUtilitiesClass();

            IHttpBasicGPValue targetValue = gpUtilities.UnpackGPValue(Value) as IHttpBasicGPValue;

            if (targetValue == null)
            {
                IGPString targetValueString = gpUtilities.UnpackGPValue(Value) as IGPString;
                if (targetValueString != null)
                {
                    return(validateValueMessage);
                }
            }


            if (targetValue == null)
            {
                validateValueMessage.Type        = esriGPMessageType.esriGPMessageTypeError;
                validateValueMessage.ErrorCode   = 502;
                validateValueMessage.Description = resourceManager.GetString("GPTools_Authentication_HttpBasicDataType_valuevalidation");
            }

            if (Domain != null)
            {
                validateValueMessage = Domain.MemberOf((IGPValue)targetValue);
            }

            return(validateValueMessage);
        }
예제 #2
0
        private string retrieveAdditionalRelations(string osmID, ref ITrackCancel TrackCancel, ESRI.ArcGIS.Geodatabase.IGPMessages message, IGPString baseURLString, HttpWebRequest httpClient, ref HttpWebResponse httpResponse)
        {
            string osmDocumentLocation = String.Empty;

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

                httpClient = HttpWebRequest.Create(baseURLString.Value + "/api/0.6/relation/" + osmID + "/full") as HttpWebRequest;
                httpClient = AssignProxyandCredentials(httpClient);

                httpResponse = httpClient.GetResponse() as HttpWebResponse;

                osmDocumentLocation = System.IO.Path.GetTempFileName();

                using (System.IO.FileStream fileStream = new System.IO.FileStream(osmDocumentLocation, FileMode.Append, FileAccess.Write))
                {
                    using (StreamReader streamReader = new StreamReader(httpResponse.GetResponseStream()))
                    {
                        UTF8Encoding encoding = new UTF8Encoding();

                        byte[] byteBuffer = encoding.GetBytes(streamReader.ReadToEnd());
                        fileStream.Write(byteBuffer, 0, byteBuffer.Length);
                    }
                }
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine(ex.Message);
                message.AddWarning(ex.Message);

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

            }

            return osmDocumentLocation;
        }
예제 #3
0
        /// <summary>
        /// Closes the current changeset and opens a new one
        /// </summary>
        /// <param name="message"></param>
        /// <param name="httpResponse"></param>
        /// <param name="httpClient"></param>
        /// <param name="changeSetID">returns the id of the new changeset</param>
        /// <param name="baseURLGPString"></param>
        /// <param name="featureUpdateCounter"></param>
        /// <param name="httpContent"></param>
        private void CreateNextChangeSet(ESRI.ArcGIS.Geodatabase.IGPMessages message, osm createChangeSetDocument, string authenticationHeader, int secondsToTimeout, ref string changeSetID, IGPString baseURLGPString, ref int featureUpdateCounter)
        {
            // close the existing changeset
            HttpWebResponse httpResponse = null;

            HttpWebRequest httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/changeset/" + changeSetID + "/close") as HttpWebRequest;
            httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
            httpClient.Method = "PUT";

            SetBasicAuthHeader(httpClient, authenticationHeader);

            httpClient.Timeout = secondsToTimeout * 1000;

            try
            {
                httpResponse = httpClient.GetResponse() as HttpWebResponse;
                message.AddMessage(String.Format(resourceManager.GetString("GPTools_OSMGPUpload_closeChangeSet"), changeSetID));
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine(ex.Message);
                if (httpResponse != null)
                {
                    foreach (var errorItem in httpResponse.Headers.GetValues("Error"))
                    {
                        message.AddError(120009, errorItem);
                    }
                    httpResponse.Close();
                }

                throw ex;
            }

            featureUpdateCounter = 1;

            // open/create a new changeset
            // ----------------------------------------
            try
            {
                string sData = OsmRest.SerializeUtils.CreateXmlSerializable(createChangeSetDocument, null, Encoding.ASCII, "text/xml");

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

                Stream requestStream = httpClient.GetRequestStream();
                StreamWriter mywriter = new StreamWriter(requestStream);

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

                httpResponse = httpClient.GetResponse() as HttpWebResponse;
            }
            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());
                    }
                    else
                    {
                        message.AddError(120009, ex.Message);
                    }
                    httpResponse.Close();
                }

                throw ex;
            }

            // updated changeset id
            Stream responseStreamclient = httpResponse.GetResponseStream();
            StreamReader myreader = new StreamReader(responseStreamclient);
            changeSetID = myreader.ReadToEnd();

            myreader.Close();
            httpResponse.Close();

            message.AddMessage(String.Format(resourceManager.GetString("GPTools_OSMGPUpload_openChangeSet"), changeSetID));
        }
예제 #4
0
        private void closeChangeSet(ESRI.ArcGIS.Geodatabase.IGPMessages message, string userAuthentication, int timeOut, string changeSetID, IGPString baseURLGPString)
        {
            HttpWebResponse httpResponse = null;

            if (timeOut < 1)
            {
                timeOut = 10;
            }

            // close is only needed if we actually opened a changeset
            if (changeSetID.Equals("-1") == false)
            {
                try
                {
                    HttpWebRequest httpClient = HttpWebRequest.Create(baseURLGPString.Value + "/api/0.6/changeset/" + changeSetID + "/close") as HttpWebRequest;
                    httpClient = OSMGPDownload.AssignProxyandCredentials(httpClient);
                    httpClient.Method = "PUT";

                    SetBasicAuthHeader(httpClient, userAuthentication);
                    httpClient.Timeout = timeOut * 1000;

                    httpResponse = httpClient.GetResponse() as HttpWebResponse;

                    message.AddMessage(String.Format(resourceManager.GetString("GPTools_OSMGPUpload_closeChangeSet"), changeSetID));
                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine(ex.Message);
                    if (httpResponse != null)
                    {
                        foreach (var errorItem in httpResponse.Headers.GetValues("Error"))
                        {
                            message.AddError(120009, errorItem);
                        }
                    }
                }
                finally
                {
                    if (httpResponse != null)
                    {
                        httpResponse.Close();
                    }
                }
            }

            return;
        }
예제 #5
0
        // Execute: Execute the function given the array of the parameters
        public void Execute(IArray paramvalues, ITrackCancel trackcancel, IGPEnvironmentManager envMgr, IGPMessages message)
        {
            IFeatureClass outputFeatureClass = null;

            try
            {
                // get the input feature class
                IGPMultiValue inputFeatureClasses_Parameter = (IGPMultiValue)m_GPUtilities.UnpackGPValue(paramvalues.get_Element(0));
                layer[]       input_featureClasses          = new layer[inputFeatureClasses_Parameter.Count];
                for (int i = 0; i < inputFeatureClasses_Parameter.Count; i++)
                {
                    IGPValue inputFeatureClass_Parameter = inputFeatureClasses_Parameter.get_Value(i);

                    IFeatureClass inputFeatureClass;
                    IQueryFilter  inputQF;

                    m_GPUtilities.DecodeFeatureLayer(inputFeatureClass_Parameter, out inputFeatureClass, out inputQF);

                    input_featureClasses[i] = new layer()
                    {
                        featureclass = inputFeatureClass, qFilter = inputQF
                    };
                }


                if (input_featureClasses.Length == 0 || input_featureClasses.Any(w => w.featureclass == null))
                {
                    message.AddError(2, "Could not open one or more input dataset.");
                    return;
                }

                //IFields additionalFields = new FieldsClass();
                //additionalFields.AddField(FEATURE_SOURCE_FIELD_NAME, esriFieldType.esriFieldTypeString);
                //additionalFields.AddField(FEATURE_ID_FIELD_NAME, esriFieldType.esriFieldTypeInteger);
                //additionalFields.AddField(
                //    input_featureClasses[0].featureclass.Fields.get_Field(
                //    input_featureClasses[0].featureclass.Fields.FindField(
                //    input_featureClasses[0].featureclass.ShapeFieldName)));

                // create the output feature class
                IGPValue outputFeatureClass_Parameter = m_GPUtilities.UnpackGPValue(paramvalues.get_Element(1));
                outputFeatureClass = GPHelperFunctions.CreateFeatureClass(outputFeatureClass_Parameter, envMgr);

                if (outputFeatureClass == null)
                {
                    message.AddError(2, "Could not create output dataset.");
                    return;
                }



                IGPString curveTypeParameter = (IGPString)m_GPUtilities.UnpackGPValue(paramvalues.get_Element(2));
                ArcConstructionMethods method;
                if (!Enum.TryParse <ArcConstructionMethods>(curveTypeParameter.Value, true, out method))
                {
                    message.AddError(2, string.Format("The value {0} is not expected.  Expected values are: {1}.",
                                                      curveTypeParameter.Value,
                                                      string.Join(",", Enum.GetNames(typeof(ArcConstructionMethods)))));
                    return;
                }

                IStepProgressor stepPro = (IStepProgressor)trackcancel;
                GPHelperFunctions.dropSpatialIndex(outputFeatureClass);

                BoostVoronoi bv = new BoostVoronoi(100);

                double          minX = int.MaxValue, minY = int.MaxValue, maxX = int.MinValue, maxY = int.MinValue;
                List <site_key> point_sites   = new List <site_key>();
                List <site_key> segment_sites = new List <site_key>();

                for (short i = 0; i < input_featureClasses.Length; i++)
                {
                    layer l         = input_featureClasses[i];
                    int   featcount = l.featureclass.FeatureCount(l.qFilter);

                    stepPro.MinRange  = 0;
                    stepPro.MaxRange  = featcount;
                    stepPro.StepValue = (1);
                    stepPro.Message   = "Reading features";
                    stepPro.Position  = 0;
                    stepPro.Show();

                    IFeatureCursor cursor = null;
                    IFeature       row    = null;

                    try
                    {
                        cursor = l.featureclass.Search(l.qFilter, false);
                        while ((row = cursor.NextFeature()) != null)
                        {
                            stepPro.Step();
                            IPoint point = row.Shape as IPoint;
                            if (point != null)
                            {
                                double X = point.X;
                                double Y = point.Y;

                                minX = Math.Min(minX, X);
                                maxX = Math.Max(maxX, X);

                                minY = Math.Min(minY, Y);
                                maxY = Math.Max(maxY, Y);

                                bv.AddPoint(point.X, point.Y);
                                point_sites.Add(new site_key(i, row.OID));
                            }

                            IMultipoint multipoint = row.Shape as IMultipoint;
                            if (multipoint != null)
                            {
                                IPointCollection pointCollection = (IPointCollection)multipoint;
                                IEnumVertex      vertices        = pointCollection.EnumVertices;

                                IPoint vertex = null; int part, index;
                                vertices.Next(out vertex, out part, out index);

                                minX = Math.Min(minX, multipoint.Envelope.XMin);
                                maxX = Math.Max(maxX, multipoint.Envelope.XMax);

                                minY = Math.Min(minY, multipoint.Envelope.YMin);
                                maxY = Math.Max(maxY, multipoint.Envelope.YMax);

                                while (vertex != null)
                                {
                                    bv.AddPoint(vertex.X, vertex.Y);
                                    point_sites.Add(new site_key(i, row.OID));

                                    vertices.Next(out vertex, out part, out index);
                                }
                            }

                            IPolyline polyline = row.Shape as IPolyline;
                            if (polyline != null)
                            {
                                double fromX = polyline.FromPoint.X;
                                double fromY = polyline.FromPoint.Y;
                                double toX   = polyline.ToPoint.X;
                                double toY   = polyline.ToPoint.Y;

                                if (toX < fromX)
                                {
                                    minX = Math.Min(minX, toX);
                                    maxX = Math.Max(maxX, fromX);
                                }
                                else
                                {
                                    minX = Math.Min(minX, fromX);
                                    maxX = Math.Max(maxX, toX);
                                }

                                if (toY < fromY)
                                {
                                    minY = Math.Min(minY, toY);
                                    maxY = Math.Max(maxY, fromY);
                                }
                                else
                                {
                                    minY = Math.Min(minY, fromY);
                                    maxY = Math.Max(maxY, toY);
                                }

                                bv.AddSegment(
                                    polyline.FromPoint.X, polyline.FromPoint.Y,
                                    polyline.ToPoint.X, polyline.ToPoint.Y
                                    );


                                segment_sites.Add(new site_key(i, row.OID));
                            }

                            Marshal.ReleaseComObject(row);
                        }
                    }
                    finally
                    {
                        if (row != null)
                        {
                            Marshal.ReleaseComObject(row);
                        }
                        if (cursor != null)
                        {
                            Marshal.ReleaseComObject(cursor);
                        }

                        stepPro.Hide();
                    }
                }

                message.AddMessage(String.Format("{0}, {1} -> {2}, {3}", minX, minY, maxX, maxY));

                int width  = Math.Max((int)((maxX - minX) * 0.1), 1);
                int height = Math.Max((int)((maxY - minY) * 0.1), 1);

                maxX = maxX + width;
                minX = minX - width;
                maxY = maxY + height;
                minY = minY - height;

                message.AddMessage(String.Format("{0}, {1} -> {2}, {3}", minX, minY, maxX, maxY));
                bv.AddSegment(minX, minY, maxX, minY);
                segment_sites.Add(new site_key(-1, -1));
                bv.AddSegment(maxX, minY, maxX, maxY);
                segment_sites.Add(new site_key(-1, -1));
                bv.AddSegment(maxX, maxY, minX, maxY);
                segment_sites.Add(new site_key(-1, -1));
                bv.AddSegment(minX, maxY, minX, minY);
                segment_sites.Add(new site_key(-1, -1));

                stepPro.Message  = "Solve Voronoi";
                stepPro.MaxRange = 0;
                stepPro.MaxRange = 0;
                stepPro.Show();

                bv.Construct();

                stepPro.Hide();

                int featureSourceIndx = outputFeatureClass.Fields.FindField(FEATURE_SOURCE_FIELD_NAME);
                int featureIDIndx     = outputFeatureClass.Fields.FindField(FEATURE_ID_FIELD_NAME);

                IFeatureCursor inserts = null;
                IFeatureBuffer buffer  = null;
                try
                {
                    object            missing          = Type.Missing;
                    ISpatialReference spatialReference = ((IGeoDataset)outputFeatureClass).SpatialReference;
                    inserts = outputFeatureClass.Insert(false);
                    buffer  = outputFeatureClass.CreateFeatureBuffer();

                    List <Cell> cells = bv.Cells;
                    message.AddMessage(string.Format("{0} cells calculated", cells.Count));
                    List <Edge> edges = bv.Edges;
                    message.AddMessage(string.Format("{0} edges calculated", edges.Count));
                    List <Vertex> vertices = bv.Vertices;
                    message.AddMessage(string.Format("{0} vertexes calculated", vertices.Count));

                    stepPro.Message  = "Write cells";
                    stepPro.MaxRange = 0;
                    stepPro.MaxRange = cells.Count;
                    stepPro.Show();


                    for (int cellIndex = 0; cellIndex < cells.Count; cellIndex++)
                    {
                        try
                        {
                            if (cellIndex % 5000 == 0)
                            {
                                message.AddMessage(String.Format("{0}. {1} cells processed.", DateTime.Now, cellIndex));
                            }

                            Cell cell        = cells[cellIndex];
                            int  currentSite = cell.Site;
                            IGeometryCollection geometryCollection = new GeometryBagClass()
                            {
                                SpatialReference = spatialReference
                            };

                            //ignores any sliver cells
                            if (cell.IsOpen || cell.EdgesIndex.Count < 3)
                            {
                                continue;
                            }

                            ISegmentCollection segmentCollection = createSegments(cell, bv, method, spatialReference);

                            if (((IArea)segmentCollection).Area <= 0)
                            {
                                message.AddMessage("A invalid geometry has been detected, try reversing the orientation.");
                                ISegmentCollection reversed_segmentCollection = new PolygonClass()
                                {
                                    SpatialReference = spatialReference
                                };
                                for (int i = segmentCollection.SegmentCount - 1; i >= 0; i--)
                                {
                                    ISegment segment = (ISegment)segmentCollection.get_Segment(i);
                                    segment.ReverseOrientation();
                                    reversed_segmentCollection.AddSegment(segment);
                                }
                                segmentCollection = reversed_segmentCollection;
                            }

                            ((IPolygon)segmentCollection).SpatialReference = spatialReference;
                            if (((IArea)segmentCollection).Area <= 0)
                            {
                                message.AddWarning("An empty shell has been created");

                                for (int i = 0; i < segmentCollection.SegmentCount; i++)
                                {
                                    ISegment segment = (ISegment)segmentCollection.get_Segment(i);
                                    message.AddMessage(String.Format("From {0}, {1} To {2},{3}",
                                                                     segment.FromPoint.X, segment.FromPoint.Y,
                                                                     segment.ToPoint.X, segment.ToPoint.Y));
                                }
                            }


                            //set attributes
                            site_key sk = (currentSite >= point_sites.Count) ? segment_sites[currentSite - point_sites.Count] : point_sites[currentSite];
                            if (!sk.isEmpty)
                            {
                                buffer.set_Value(featureSourceIndx, input_featureClasses[sk.featureClassIndex].featureclass.AliasName);
                                buffer.set_Value(featureIDIndx, sk.objectID);
                            }
                            else
                            {
                                buffer.set_Value(featureSourceIndx, DBNull.Value);
                                buffer.set_Value(featureIDIndx, DBNull.Value);
                            }


                            IPolygon voronoiPolygon = (IPolygon)segmentCollection;
                            buffer.Shape = (IPolygon)voronoiPolygon;
                            inserts.InsertFeature(buffer);
                        }
                        catch (Exception e)
                        {
                            message.AddWarning("Failed to create a cell");
                        }
                    }
                }
                finally
                {
                    if (buffer != null)
                    {
                        Marshal.ReleaseComObject(buffer);
                    }
                    if (inserts != null)
                    {
                        Marshal.ReleaseComObject(inserts);
                    }
                }

                GPHelperFunctions.createSpatialIndex(outputFeatureClass);
            }
            catch (Exception exx)
            {
                message.AddError(2, exx.Message);
                message.AddMessage(exx.ToString());
            }
            finally
            {
                if (outputFeatureClass != null)
                {
                    Marshal.ReleaseComObject(outputFeatureClass);
                }

                ((IProgressor)trackcancel).Hide();
            }
        }
예제 #6
0
        public void Execute(ESRI.ArcGIS.esriSystem.IArray paramvalues, ESRI.ArcGIS.esriSystem.ITrackCancel TrackCancel, ESRI.ArcGIS.Geoprocessing.IGPEnvironmentManager envMgr, ESRI.ArcGIS.Geodatabase.IGPMessages message)
        {
            IGPUtilities3 gpUtilities3  = new GPUtilitiesClass();
            OSMToolHelper osmToolHelper = new OSMToolHelper();

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

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

            string storageKeyword = String.Empty;

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

            IGPParameter osmFileParameter      = paramvalues.get_Element(0) as IGPParameter;
            IGPValue     osmFileLocationString = gpUtilities3.UnpackGPValue(osmFileParameter) as IGPValue;

            IGPParameter loadSuperRelationParameter = paramvalues.get_Element(1) as IGPParameter;
            IGPBoolean   loadSuperRelationGPValue   = gpUtilities3.UnpackGPValue(loadSuperRelationParameter) as IGPBoolean;

            IGPParameter osmSourceLineFeatureClassParameter = paramvalues.get_Element(2) as IGPParameter;
            IGPValue     osmSourceLineFeatureClassGPValue   = gpUtilities3.UnpackGPValue(osmSourceLineFeatureClassParameter) as IGPValue;

            IGPParameter osmSourcePolygonFeatureClassParameter = paramvalues.get_Element(3) as IGPParameter;
            IGPValue     osmSourcePolygonFeatureClassGPValue   = gpUtilities3.UnpackGPValue(osmSourcePolygonFeatureClassParameter) as IGPValue;


            IGPParameter osmTargetLineFeatureClassParameter = paramvalues.get_Element(6) as IGPParameter;
            IGPValue     osmTargetLineFeatureClassGPValue   = gpUtilities3.UnpackGPValue(osmTargetLineFeatureClassParameter) as IGPValue;

            IName       workspaceName        = gpUtilities3.CreateParentFromCatalogPath(osmTargetLineFeatureClassGPValue.GetAsText());
            IWorkspace2 lineFeatureWorkspace = workspaceName.Open() as IWorkspace2;

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

            IFeatureClass osmLineFeatureClass = null;

            IGPParameter  tagLineCollectionParameter = paramvalues.get_Element(4) 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, "", "", lineTagstoExtract);
            }
            catch (Exception ex)
            {
                message.AddError(120035, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullpointfeatureclass"), ex.Message));
                return;
            }

            if (osmLineFeatureClass == null)
            {
                return;
            }


            IGPParameter osmTargetPolygonFeatureClassParameter = paramvalues.get_Element(7) as IGPParameter;
            IGPValue     osmTargetPolygonFeatureClassGPValue   = gpUtilities3.UnpackGPValue(osmTargetPolygonFeatureClassParameter) as IGPValue;

            workspaceName = gpUtilities3.CreateParentFromCatalogPath(osmTargetPolygonFeatureClassGPValue.GetAsText());
            IWorkspace2 polygonFeatureWorkspace = workspaceName.Open() as IWorkspace2;

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

            IFeatureClass osmPolygonFeatureClass = null;

            IGPParameter  tagPolygonCollectionParameter = paramvalues.get_Element(5) 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, "", "", polygonTagstoExtract);
            }
            catch (Exception ex)
            {
                message.AddError(120035, String.Format(resourceManager.GetString("GPTools_OSMGPDownload_nullpointfeatureclass"), ex.Message));
                return;
            }

            if (osmPolygonFeatureClass == null)
            {
                return;
            }

            ComReleaser.ReleaseCOMObject(osmPolygonFeatureClass);
            ComReleaser.ReleaseCOMObject(osmLineFeatureClass);


            string[] gdbComponents = new string[polygonFCNameElements.Length - 1];
            System.Array.Copy(lineFCNameElements, gdbComponents, lineFCNameElements.Length - 1);
            string fileGDBLocation = String.Join(System.IO.Path.DirectorySeparatorChar.ToString(), gdbComponents);

            osmToolHelper.smallLoadOSMRelations(osmFileLocationString.GetAsText(),
                                                osmSourceLineFeatureClassGPValue.GetAsText(),
                                                osmSourcePolygonFeatureClassGPValue.GetAsText(),
                                                osmTargetLineFeatureClassGPValue.GetAsText(),
                                                osmTargetPolygonFeatureClassGPValue.GetAsText(),
                                                lineTagstoExtract, polygonTagstoExtract, loadSuperRelationGPValue.Value);
        }