Review Request 74949: RANGER-4763: Send user-friendly message if Test connection is not implemented for a service definition

[Anand Nadar]

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Review request for ranger, Asit Vadhavkar, Madhan Neethiraj, Monika Kachhadiya, 
Siddhesh Phatak, and Subhrat Chaudhary.


Bugs: RANGER-4763
    https://issues.apache.org/jira/browse/RANGER-4763


Repository: ranger


Description
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Send user-friendly message if Test connection is not implemented for a service 
definition


Diffs
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agents-common/src/main/java/org/apache/ranger/plugin/service/RangerDefaultService.java
 c89b55757 
  security-admin/src/main/java/org/apache/ranger/biz/ServiceMgr.java 7e071ba0e 
  security-admin/src/main/java/org/apache/ranger/common/TimedExecutor.java 
d6fc01176 


Diff: https://reviews.apache.org/r/74949/diff/1/


Testing
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Validated "Test Connection" when the service definition does not have 
implClass, it gives the below response in this case.
{
    "statusCode": 1,
    "msgDesc": "Configuration validation is not implemented for hive-service-1",
    "messageList": [
        {
            "message": "Configuration validation is not implemented for 
hive-service-1"
        }
    ]
}


Thanks,

Anand Nadar