enhanced attributes for mong plugin

src/python/dm/ds_web_service/service/impl/mongoDbFileCatalogPlugin.py

@@ -28,6 +28,9 @@ class MongoDbFileCatalogPlugin(FileProcessor):
 
         # Prepare catalogging entry
         fileInfo2 = {}
+        for key in ['md5Sum', 'fileSize', 'fileCreationTime', 'fileCreationTimeStamp']:
+            if fileInfo.has_key(key):
+                fileInfo2[key] = fileInfo.get(key, '')
         fileInfo2['fileName'] = os.path.basename(experimentFilePath)
         fileInfo2['experimentStorageDirectory'] = experimentStorageDirectory
         fileInfo2['storageHost'] = storageHost