@Before
  public void init() {

    if (client == null) {
      synchronized (ElasticNodeClient.class) {
        if (client == null) {

          try {
            client =
                new TransportClient()
                    .addTransportAddress(new InetSocketTransportAddress("192.168.1.202", 9300));
          } catch (ElasticsearchException e) {
            e.printStackTrace();
            throw new RuntimeException(e);
          }
        }
      }
    }
  }