private MemberRequest getRequest(Map<String, Object> properties) {
    if (properties == null) {
      return new MemberRequest(null, null);
    }

    final MemberRequest request = new MemberRequest(
        (String) properties.get(MEMBER_GROUP_NAME_PROPERTY_ID),
        (String) properties.get(MEMBER_USER_NAME_PROPERTY_ID));
    return request;
  }
Create a  new resource provider for the given management controller.

@param managementController  the management controller
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/MemberResourceProvider.java