@Override
  public List<PostProcessor> getPostProcessors() {
    List<PostProcessor> listProcessors = new ArrayList<>();
    listProcessors.add(new MpackHrefProcessor());
    listProcessors.add(new MpackPostProcessor());
    return listProcessors;
  }
Resource Definition for Mpack Resource types.
ambari-server/src/main/java/org/apache/ambari/server/api/resources/MpackResourceDefinition.java