[jira] [Created] (AMBARI-1480) Comparison predicate should allow for null values.

["Tom Beerbower (JIRA)" <ji...@apache.org>]

Tom Beerbower created AMBARI-1480:
-------------------------------------

             Summary: Comparison predicate should allow for null values.
                 Key: AMBARI-1480
                 URL: https://issues.apache.org/jira/browse/AMBARI-1480
             Project: Ambari
          Issue Type: Bug
            Reporter: Tom Beerbower
            Assignee: Tom Beerbower
             Fix For: 1.3.0


ComparisonPredicate does not allow for null values so we will end up with the following if the predicate is created with a null ...

{code}
SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container
java.lang.NullPointerException
at org.apache.ambari.server.controller.predicate.ComparisonPredicate.compareValueTo(ComparisonPredicate.java:96)
at org.apache.ambari.server.controller.predicate.EqualsPredicate.evaluate(EqualsPredicate.java:35)
at org.apache.ambari.server.controller.predicate.AndPredicate.evaluate(AndPredicate.java:68)
at org.apache.ambari.server.controller.internal.ClusterControllerImpl$ResourceIterator.getNextResource(ClusterControllerImpl.java:472)
at org.apache.ambari.server.controller.internal.ClusterControllerImpl$ResourceIterator.<init>(ClusterControllerImpl.java:434)
at org.apache.ambari.server.controller.internal.ClusterControllerImpl$ResourceIterator.<init>(ClusterControllerImpl.java:405)
at org.apache.ambari.server.controller.internal.ClusterControllerImpl$ResourceIterable.iterator(ClusterControllerImpl.java:398)
at org.apache.ambari.server.api.query.QueryImpl.execute(QueryImpl.java:139)
at org.apache.ambari.server.api.handlers.ReadHandler.handleRequest(ReadHandler.java:61)
at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:68)
at org.apache.ambari.server.api.services.HostComponentService.getHostComponents(HostComponentService.java:91)
{code}

The API may support "isNull(property)" in the future so the underlying predicates should be made to allow for nulls.




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