ATLAS-3297: cache added/update entities in request-context, for use in entity-change listeners

repository/src/main/java/org/apache/atlas/repository/store/graph/v2/EntityGraphMapper.java

@@ -196,6 +196,7 @@ public class EntityGraphMapper {
         MetricRecorder metric = RequestContext.get().startMetricRecord("mapAttributesAndClassifications");
 
         EntityMutationResponse resp       = new EntityMutationResponse();
+        RequestContext         reqContext = RequestContext.get();
 
         Collection<AtlasEntity> createdEntities = context.getCreatedEntities();
         Collection<AtlasEntity> updatedEntities = context.getUpdatedEntities();
@@ -212,6 +213,8 @@ public class EntityGraphMapper {
 
                 resp.addEntity(CREATE, constructHeader(createdEntity, entityType, vertex));
                 addClassifications(context, guid, createdEntity.getClassifications());
+
+                reqContext.cache(createdEntity);
             }
         }
 
@@ -231,10 +234,12 @@ public class EntityGraphMapper {
                     resp.addEntity(UPDATE, constructHeader(updatedEntity, entityType, vertex));
                 }
 
-                if ( replaceClassifications ) {
+                if (replaceClassifications) {
                     deleteClassifications(guid);
                     addClassifications(context, guid, updatedEntity.getClassifications());
                 }
+
+                reqContext.cache(updatedEntity);
             }
         }