private PoolStatus _getPoolStatus(PoolConfigurationModel poolConfiguration) {
   PoolStatus retValue = null;
   if (poolConfiguration != null) {
     PoolSettings poolSettings = poolConfiguration.getPoolSettings();
     if (poolSettings != null) {
       retValue = poolManagerApi.getStatus(poolSettings);
     }
   }
   return retValue;
 }
  /** @return poolConfigurationId => poolStatus map. */
  @RequestMapping(value = "/admin/pools/status", method = RequestMethod.GET)
  @ResponseBody
  public Map<Long, PoolStatus> getPoolsStatus() {
    Map<Long /* poolConfigurationId */, PoolStatus> resultMap = new HashMap<Long, PoolStatus>();
    // get pool status for all pools
    Collection<PoolStatus> poolStatuses = poolManagerApi.listStatuses();
    // map every status found to its pool configuration
    List<PoolConfigurationModel> poolConfigurationModels = poolDao.readPools();
    for (PoolConfigurationModel poolConfiguration : poolConfigurationModels) {
      Long poolConfigurationId = poolConfiguration.getId();

      for (PoolStatus poolStatus : poolStatuses) {
        if (poolStatus.getPoolId().equals(poolConfiguration.getPoolSettings().getUuid())) {
          resultMap.put(poolConfigurationId, poolStatus);
        }
      }
    }

    return resultMap;
  }