ATLAS-5025: entity-create perf improvement - skip setLabel call when empty (#339)

Author: Amruth-github

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

@@ -336,7 +336,9 @@ public AtlasVertex createVertexWithGuid(AtlasEntity entity, String guid) throws
 
         setCustomAttributes(ret, entity);
 
-        setLabels(ret, entity.getLabels());
+        if (CollectionUtils.isNotEmpty(entity.getLabels())) {
+            setLabels(ret, entity.getLabels());
+        }
 
         GraphTransactionInterceptor.addToVertexCache(guid, ret);