@Override
  public void acceptArrayPredicate(ArrayPredicate predicate) {
    Predicate[] predicates = predicate.getPredicates();
    for (Predicate predicate1 : predicates) {
      PredicateHelper.visit(predicate1, this);
    }
  }
Predicate visitor for extracting property values from the {@link PropertyPredicate}s of a predicate graph.
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/PropertyPredicateVisitor.java