code: @Override
      public int getShardId(final Object[] objs) {
          if (objs == null || objs.length == 0) {
              return 0;
          }
  
          Object input = null;
  
          if (objs[0] == null) {
              return 0;
          }
  
          if (objs[0] instanceof List) {
              List<?> list = (List<?>) objs[0];
              if (list.isEmpty()) {
                  return 0;
              }
  
              input = list.get(0);
          } else {
              input = objs[0];
          }
  /*
   *      if (input instanceof Long) {
   *          hasher.putLong((Long) input);
   *      } else if (input instanceof Integer) {
   *          hasher.putInt((Integer) input);
   *      } else {
   *          hasher.putString((String) input);
   *      }*/
  
          return Murmur2Hash.hash(((String) input).getBytes(), 0);
      }
docs: @param   objs  Key Objects
  
  @return  virtual shard id