public Predicate amendPredicate(Predicate predicate) {
    // TODO Auto-generated method stub
    return null;
  }
Get an amended predicate used when use {@link #getResources(Request, Predicate)}.  This
is needed in cases where the resource might incorrectly be filtered during predicate processing.
Changing the predicate allows them to be included.
@param predicate the predicate passed in the request
@return the new predicate, or {@code null} to leave the predicate unchanged.
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/ReadOnlyResourceProvider.java