ICreateDocumentTask IDocumentService.CreateCreateDocumentTask(Uri uri, Guid guid, string persistentInfo)
{
return(CreateDocumentTask.FromFactory(() =>
{
if (uri.Scheme == Uri.UriSchemeFile)
{
var path = uri.LocalPath;
if (path == null || !UnifiedFile.Exists(path))
{
return null;
}
var fileViewer = this.GetFileViewerService(UnifiedPath.GetExtension(path));
if (fileViewer == null)
{
return null;
}
return this.CreateDocument(guid, uri, fileViewer);
}
else if (uri.Scheme == StreamScheme)
{
var streamId = uri.Host + uri.PathAndQuery;
StreamInfo streamInfo;
if (!_registeredStreams.TryGetValue(streamId, out streamInfo))
{
this.LogWarning("no registered stream with ID '{0}' found", streamId);
return null;
}
_registeredStreams.Remove(streamId);
if (!streamInfo.StreamReference.IsAlive)
{
this.LogWarning("the registered stream with ID '{0}' is no more alive", streamId);
return null;
}
var fileViewer = this.GetFileViewerServiceOrNotifyMissing(streamInfo.FileType);
if (fileViewer == null)
{
return null;
}
IFeature[] features;
var viewer = fileViewer.CreateViewer(streamInfo.StreamReference.Target, out features);
var document = DocumentInfo.CreateTemporary(streamInfo.OwnerRepository.ID, streamInfo.Title, uri, viewer, features);
document.Description = streamInfo.Description;
return document;
}
else
{
throw new NotSupportedException();
}
}));
}
