@RequiresSession
  ServiceConfigVersionResponse getActiveServiceConfigVersion(String serviceName) {
    ServiceConfigEntity lastServiceConfig = serviceConfigDAO.getLastServiceConfig(getClusterId(), serviceName);
    if (lastServiceConfig == null) {
      LOG.debug("No service config version found for service {}", serviceName);
      return null;
    }
    return convertToServiceConfigVersionResponse(lastServiceConfig);
  }
Adds Configuration data to the serviceConfigVersionResponse
@param serviceConfigVersionResponse
@param serviceConfigEntity
@return serviceConfigVersionResponse
ambari-server/src/main/java/org/apache/ambari/server/state/cluster/ClusterImpl.java