From fcd13000eff8cd126c46a8c687a3ec9fbace5f21 Mon Sep 17 00:00:00 2001
From: Harshal Sheth <hsheth2@gmail.com>
Date: Wed, 10 Feb 2021 16:27:23 -0800
Subject: [PATCH] Throw error when aspects are empty

---
 metadata-ingestion/src/gometa/ingestion/extractor/generic.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/metadata-ingestion/src/gometa/ingestion/extractor/generic.py b/metadata-ingestion/src/gometa/ingestion/extractor/generic.py
index caf68e48a4..ac31aec9bf 100644
--- a/metadata-ingestion/src/gometa/ingestion/extractor/generic.py
+++ b/metadata-ingestion/src/gometa/ingestion/extractor/generic.py
@@ -11,6 +11,8 @@ class WorkUnitMCEExtractor(Extractor):
         pass
 
     def get_records(self, workunit) -> Iterable[RecordEnvelope[MetadataChangeEvent]]:
+        if len(workunit.mce.proposedSnapshot.aspects) == 0:
+            raise AttributeError('every mce must have at least one aspect')
         yield RecordEnvelope(workunit.mce, {})
 
     def close(self):