private void addVNXFileStorageSystemIntoCache(String storageSystemURI,DistributedQueueItemProcessedCallback callBack){
  if (StringUtils.isNotEmpty(storageSystemURI)) {
    VNXFILE_CACHE.put(storageSystemURI,callBack);
  }
}

private void addVNXFileStorageSystemIntoCache ( String storageSystemURI , DistributedQueueItemProcessedCallback callBack ) { if ( StringUtils . isNotEmpty ( storageSystemURI ) ) { VNXFILE_CACHE . put ( storageSystemURI , callBack ) ; } }
adds vnxfile ' s uri and callback instance into cache
