@Override
  protected ResourceType getResourceType(Request request, Predicate predicate) {
    // This information is not associated with any particular resource
    return null;
  }
Transforms map of json properties to repository version entity.

@param properties json map
@return constructed entity
@throws AmbariException if some properties are missing or json has incorrect structure
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/RepositoryVersionResourceProvider.java