[ATLAS-2321] V1 DSL search fails with error when the query doesn't return any results

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.0
• Fix Version/s: 1.0.0
• Component/s: atlas-core
• Assignee: Madhan Neethiraj
• Reporter: Sharmadha S
• Created: 22/Dec/17 01:16
• Updated: 04/Jan/18 23:42
• Resolved: 22/Dec/17 02:21

Description

V1 DSL query :
http://atlas-host:21000/api/atlas/discovery/search/dsl?query=hive_db+where+name+%3D+%27xyz%27

fails with the following error in Atlas logs when Atlas doesn't have a hive_db entity with name='xyz'.

java.io.IOException: not an array
	at org.apache.atlas.utils.AtlasJson.parseToV1ArrayNode(AtlasJson.java:169)
	at org.apache.atlas.web.resources.MetadataDiscoveryResource$DSLJSONResponseBuilder.results(MetadataDiscoveryResource.java:308)
	at org.apache.atlas.web.resources.MetadataDiscoveryResource.searchUsingQueryDSL(MetadataDiscoveryResource.java:160)