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Posted to dev@atlas.apache.org by chaitali <ch...@freestoneinfotech.com> on 2020/10/09 10:45:55 UTC

Review Request 72943: ATLAS-3988 : REST GET entity API with type's GUID throws NPE

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https://reviews.apache.org/r/72943/
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Review request for atlas, Madhan Neethiraj, Nixon Rodrigues, and Sarath Subramanian.


Bugs: ATLAS-3988
    https://issues.apache.org/jira/browse/ATLAS-3988


Repository: atlas


Description
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Issue :
GET on /api/atlas/v2/entity/guid/<invalid_GUID> throws invalid GUID exception.

BUT GET on /api/atlas/v2/entity/guid/<valid_type_GUID> throws NPE.

 
2020-01-14 02:19:07,272 ERROR - [pool-2-thread-3 - a0b7457e-d43f-4fca-9581-8db695ef7af3:] ~ graph rollback due to exception (GraphTransactionInterceptor:167)
java.lang.NullPointerException
at org.apache.atlas.type.AtlasTypeRegistry.getType(AtlasTypeRegistry.java:94)
at org.apache.atlas.repository.store.graph.v2.EntityGraphRetriever.mapAttributes(EntityGraphRetriever.java:608)
at org.apache.atlas.repository.store.graph.v2.EntityGraphRetriever.mapVertexToAtlasEntity(EntityGraphRetriever.java:448)

This patch fixes the issue by adding a null check for typename exists or not for the guid passed.


Diffs
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  intg/src/main/java/org/apache/atlas/AtlasErrorCode.java a14e43a1e 
  repository/src/main/java/org/apache/atlas/repository/store/graph/v2/EntityGraphRetriever.java 00146b106 


Diff: https://reviews.apache.org/r/72943/diff/1/


Testing
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Tested with GET call GET on /api/atlas/v2/entity/guid/<invalid_GUID>  by passing typename guid to this entity call.


Thanks,

chaitali