+ DISTRIBUTION_EVENT, //
+ MESSAGE_AUDIT, //
+ MESSAGE_METRIC, //
+ MISSING_REQUEST_ID, //
+ PROCESS_REQUEST_ERROR, //
+ INVALID_CSAR_FILE, //
+ INVALID_REQUEST_JSON, //
+ BABEL_REQUEST_PAYLOAD, //
+ BABEL_RESPONSE_PAYLOAD, //
+ LOAD_PROPERTIES, //
+ PROCESSING_VNF_CATALOG_ERROR, //
+ TEMP_FILE_ERROR, //
+ MISSING_SERVICE_METADATA;