@Override
  public boolean evaluate(Predicate predicate, Resource resource) {
    return true;
  }
ResourcePredicateEvaluator implementation. If property type is Auth/user_name,
we do a case insensitive comparison so that we can return the retrieved
username when it differs only in case with respect to the requested username.

@param predicate the predicate
@param resource  the resource
@return
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/AuthResourceProvider.java