void ProcessLinkedDocuments()
{
List <string> LinkedDocumentsToRemove = new List <string>();
// Check for modified linked documents.
foreach (var LinkedDocEntry in RootCache.LinkedDocumentsCache)
{
// Check if the link was removed.
string LinkedDocPath = LinkedDocEntry.Key;
if (!ExportedLinkedDocuments.ContainsKey(LinkedDocPath))
{
LinkedDocumentsToRemove.Add(LinkedDocPath);
continue;
}
// Check if the link was modified.
FCachedDocumentData LinkedDocCache = LinkedDocEntry.Value;
if (ModifiedLinkedDocuments.Contains(LinkedDocCache.SourceDocument))
{
LinkedDocCache.Purge(DatasmithScene, true);
}
LinkedDocCache.ExportedElements.Clear();
}
foreach (var LinkedDoc in LinkedDocumentsToRemove)
{
RootCache.LinkedDocumentsCache[LinkedDoc].Purge(DatasmithScene, true);
RootCache.LinkedDocumentsCache.Remove(LinkedDoc);
}
}
public void OnEndExport()
{
if (RootCache.LinkedDocumentsCache.Count > 0)
{
ProcessLinkedDocuments();
}
RootCache.Purge(DatasmithScene, false);
ModifiedLinkedDocuments.Clear();
ExportedLinkedDocuments.Clear();
RootCache.ClearModified();
RootCache.ExportedElements.Clear();
string OutputPath = null;
IDirectLinkUI DirectLinkUI = IDatasmithExporterUIModule.Get()?.GetDirectLinkExporterUI();
if (DirectLinkUI != null)
{
OutputPath = DirectLinkUI.GetDirectLinkCacheDirectory();
}
else
{
OutputPath = Path.Combine(Path.GetTempPath(), SceneName);
}
Directory.CreateDirectory(OutputPath);
DatasmithScene.ExportAssets(OutputPath);
DatasmithScene.BuildScene(SceneName);
bool bUpdateOk = DatasmithDirectLink.UpdateScene(DatasmithScene);
SyncCount++;
// Control metadata export via env var REVIT_DIRECTLINK_WITH_METADATA.
// We are not interested of its value, just if it was set.
if (null != Environment.GetEnvironmentVariable("REVIT_DIRECTLINK_WITH_METADATA"))
{
Debug.Assert(MetadataTask == null); // We cannot have metadata export running at this point (must be stopped in OnBeginExport)
MetadataCancelToken = new CancellationTokenSource();
MetadataTask = Task.Run(() => ExportMetadata());
}
}