@Override
  public RequestStatus deleteResources(Request request, Predicate predicate)
      throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException {
    throw new UnsupportedOperationException("Not currently supported.");
  }
Converts the specified JSON string into a {@link Map}. For now, use Jackson
instead of gson since none of the integers will convert properly without a
well-defined first-class object to map to.

@param structuredOutput
         the JSON string to convert.
@return the converted JSON as key-value pairs, or {@code null} if an
        exception was encountered or if the JSON string was empty.
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/TaskResourceProvider.java