private ESRI.ArcGIS.OSM.OSMClassExtension.way CreateWayRepresentation(IFeatureClass featureClass, string action, long osmID, string changeSetID, int osmVersion, Dictionary<long, long> osmIDLookup, IFeatureClass pointFeatureClass, int pointOSMIDFieldIndex, int extensionVersion)
{
way wayRepresentation = new way();
// let's find all the rows that have a different status than 200 - meaning success
IQueryFilter queryFilter = new QueryFilterClass();
queryFilter.WhereClause = featureClass.WhereClauseByExtensionVersion(osmID, "OSMID", extensionVersion);
using (ComReleaser comReleaser = new ComReleaser())
{
IFeatureCursor searchCursor = featureClass.Search(queryFilter, false);
comReleaser.ManageLifetime(searchCursor);
IFeature wayFeature = searchCursor.NextFeature();
int osmTagsFieldIndex = featureClass.Fields.FindField("osmTags");
int osmIDFieldIndex = featureClass.Fields.FindField("osmID");
int osmUserFieldIndex = featureClass.Fields.FindField("osmuser");
int osmUIDFieldIndex = featureClass.Fields.FindField("osmuid");
int osmVisibleFieldIndex = featureClass.Fields.FindField("osmvisible");
int osmVersionFieldIndex = featureClass.Fields.FindField("osmversion");
if (wayFeature != null)
{
switch (action)
{
case "create":
// the newly created node needs to carry the changeset info, the coordinate and the tags
wayRepresentation.changeset = changeSetID;
tag[] tags = null;
if (osmTagsFieldIndex > -1)
{
tags = _osmUtility.retrieveOSMTags((IRow)wayFeature, osmTagsFieldIndex, ((IDataset)featureClass).Workspace);
}
List<tag> valueOnlyTags = new List<tag>();
for (int index = 0; index < tags.Length; index++)
{
if (!String.IsNullOrEmpty(tags[index].v))
{
valueOnlyTags.Add(tags[index]);
}
}
wayRepresentation.tag = valueOnlyTags.ToArray();
if (osmIDFieldIndex > -1)
{
wayRepresentation.id = osmID.ToString();
}
List<nd> nodeList = new List<nd>();
IPointCollection pointCollection = wayFeature.Shape as IPointCollection;
IEnumVertex enumVertex = pointCollection.EnumVertices;
enumVertex.Reset();
IPoint currentPoint = null;
int vertexIndex = -1;
int partIndex = -1;
bool isStoreRequired = false;
enumVertex.Next(out currentPoint, out partIndex, out vertexIndex);
while (currentPoint != null)
{
if (osmIDLookup.ContainsKey(currentPoint.ID))
{
if (extensionVersion == 1)
{
enumVertex.put_ID(Convert.ToInt32(osmIDLookup[currentPoint.ID]));
isStoreRequired = true;
}
else if (extensionVersion == 2)
{
// the initial established ObjectIDs don't change
}
}
nd ndElement = new nd();
ndElement.@ref = OSMToolHelper.retrieveNodeID(pointFeatureClass, osmIDFieldIndex, extensionVersion, pointCollection.get_Point(vertexIndex));
nodeList.Add(ndElement);
enumVertex.Next(out currentPoint, out partIndex, out vertexIndex);
}
// only do a store operation if the vertex IDs have actually changed
if (isStoreRequired)
{
wayFeature.Shape = (IGeometry)pointCollection;
wayFeature.Store();
}
nodeList = CorrectNodeIDs(nodeList);
wayRepresentation.nd = nodeList.ToArray();
break;
case "modify":
// for an update the complete (full) way needs to be returned
wayRepresentation.changeset = changeSetID;
if (osmIDFieldIndex > -1)
{
wayRepresentation.id = Convert.ToString(wayFeature.get_Value(osmIDFieldIndex), new CultureInfo("en-US"));
}
if (osmUserFieldIndex > -1)
{
wayRepresentation.user = Convert.ToString(wayFeature.get_Value(osmUserFieldIndex));
}
if (osmUIDFieldIndex > -1)
{
wayRepresentation.uid = Convert.ToString(wayFeature.get_Value(osmUIDFieldIndex), new CultureInfo("en-US"));
}
if (osmVisibleFieldIndex > -1)
{
try
{
wayRepresentation.visible = (wayVisible)Enum.Parse(typeof(wayVisible), Convert.ToString(wayFeature.get_Value(osmVisibleFieldIndex)));
}
catch
{
wayRepresentation.visible = wayVisible.@true;
}
}
if (osmVersionFieldIndex > -1)
{
wayRepresentation.version = Convert.ToString(wayFeature.get_Value(osmVersionFieldIndex));
}
tags = null;
if (osmTagsFieldIndex > -1)
{
tags = _osmUtility.retrieveOSMTags((IRow)wayFeature, osmTagsFieldIndex, ((IDataset)featureClass).Workspace);
}
valueOnlyTags = new List<tag>();
for (int index = 0; index < tags.Length; index++)
{
if (!String.IsNullOrEmpty(tags[index].v))
{
valueOnlyTags.Add(tags[index]);
}
}
pointCollection = wayFeature.Shape as IPointCollection;
enumVertex = pointCollection.EnumVertices;
enumVertex.Reset();
currentPoint = null;
vertexIndex = -1;
partIndex = -1;
// use flag if we need to call store on the update feature
// it is somewhat of a costly operation and we would like to avoid it if possible
isStoreRequired = false;
nodeList = new List<nd>();
enumVertex.Next(out currentPoint, out partIndex, out vertexIndex);
while (currentPoint != null)
{
if (osmIDLookup.ContainsKey(currentPoint.ID))
{
if (extensionVersion == 1)
{
enumVertex.put_ID(Convert.ToInt32(osmIDLookup[currentPoint.ID]));
isStoreRequired = true;
}
else if (extensionVersion == 2)
{
// the ObjectIDs of the referenced features don't change
}
}
nd ndElement = new nd();
ndElement.@ref = OSMToolHelper.retrieveNodeID(pointFeatureClass, osmIDFieldIndex, extensionVersion, pointCollection.get_Point(vertexIndex));
nodeList.Add(ndElement);
enumVertex.Next(out currentPoint, out partIndex, out vertexIndex);
}
if (isStoreRequired)
{
wayFeature.Shape = (IGeometry)pointCollection;
wayFeature.Store();
}
nodeList = CorrectNodeIDs(nodeList);
wayRepresentation.nd = nodeList.ToArray();
wayRepresentation.tag = valueOnlyTags.ToArray();
break;
case "delete":
wayRepresentation.changeset = changeSetID;
wayRepresentation.id = Convert.ToString(osmID);
wayRepresentation.version = Convert.ToString(osmVersion);
break;
default:
break;
}
}
else
{
if (action.Equals("delete", StringComparison.InvariantCultureIgnoreCase))
{
wayRepresentation.changeset = changeSetID;
wayRepresentation.id = Convert.ToString(osmID);
wayRepresentation.version = Convert.ToString(osmVersion);
}
}
}
return wayRepresentation;
}
private way ConvertFeatureToOSMWay(IFeature currentFeature, IWorkspace featureWorkspace, IFeatureClass pointFeatureClass, int osmIDPointFieldIndex, int tagsFieldIndex, int osmIDFieldIndex, int changesetIDFieldIndex, int osmVersionFieldIndex, int userIDFieldIndex, int userNameFieldIndex, int timeStampFieldIndex, int visibleFieldIndex, int extensionVersion)
{
if (currentFeature == null)
throw new ArgumentNullException("currentFeature");
way osmWay = new way();
object featureValue = DBNull.Value;
List<nd> vertexIDs = new List<nd>();
if (currentFeature.Shape.IsEmpty == false)
{
IPointCollection pointCollection = currentFeature.Shape as IPointCollection;
if (currentFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolygon)
{
for (int pointIndex = 0; pointIndex < pointCollection.PointCount - 1; pointIndex++)
{
nd vertex = new nd();
vertex.@ref = OSMToolHelper.retrieveNodeID(pointFeatureClass, osmIDPointFieldIndex, extensionVersion, pointCollection.get_Point(pointIndex));
vertexIDs.Add(vertex);
}
// the last node is the first one again even though it doesn't have an internal ID
nd lastVertex = new nd();
lastVertex.@ref = OSMToolHelper.retrieveNodeID(pointFeatureClass, osmIDPointFieldIndex, extensionVersion, pointCollection.get_Point(0));
vertexIDs.Add(lastVertex);
}
else
{
for (int pointIndex = 0; pointIndex < pointCollection.PointCount; pointIndex++)
{
nd vertex = new nd();
vertex.@ref = OSMToolHelper.retrieveNodeID(pointFeatureClass, osmIDPointFieldIndex, extensionVersion, pointCollection.get_Point(pointIndex));
vertexIDs.Add(vertex);
}
}
osmWay.nd = vertexIDs.ToArray();
}
if (osmIDFieldIndex != -1)
{
osmWay.id = Convert.ToString(currentFeature.get_Value(osmIDFieldIndex));
}
if (changesetIDFieldIndex != -1)
{
featureValue = currentFeature.get_Value(changesetIDFieldIndex);
if (featureValue != DBNull.Value)
{
osmWay.changeset = Convert.ToString(currentFeature.get_Value(changesetIDFieldIndex));
}
}
if (osmVersionFieldIndex != -1)
{
featureValue = currentFeature.get_Value(osmVersionFieldIndex);
if (featureValue != DBNull.Value)
{
osmWay.version = Convert.ToString(featureValue);
}
}
if (userIDFieldIndex != -1)
{
featureValue = currentFeature.get_Value(userIDFieldIndex);
if (featureValue != DBNull.Value)
{
osmWay.uid = Convert.ToString(featureValue);
}
}
if (userNameFieldIndex != -1)
{
featureValue = currentFeature.get_Value(userNameFieldIndex);
if (featureValue != DBNull.Value)
{
osmWay.user = Convert.ToString(featureValue);
}
}
if (timeStampFieldIndex != -1)
{
featureValue = currentFeature.get_Value(timeStampFieldIndex);
if (featureValue != DBNull.Value)
{
osmWay.timestamp = Convert.ToDateTime(featureValue).ToUniversalTime().ToString("u");
}
}
if (visibleFieldIndex != -1)
{
featureValue = currentFeature.get_Value(visibleFieldIndex);
if (featureValue != DBNull.Value)
{
try
{
osmWay.visible = (wayVisible)Enum.Parse(typeof(wayVisible), Convert.ToString(featureValue));
}
catch
{
osmWay.visible = wayVisible.@true;
}
}
}
if (tagsFieldIndex > -1)
{
tag[] tags = null;
tags = _osmUtility.retrieveOSMTags((IRow)currentFeature, tagsFieldIndex, featureWorkspace);
if (tags.Length != 0)
{
osmWay.tag = tags;
}
}
return osmWay;
}