@Override
 public void handleRequest(
     final RestRequest request, final RestChannel channel, final Client client) {
   ClusterStatsRequest clusterStatsRequest =
       new ClusterStatsRequest().nodesIds(request.paramAsStringArray("nodeId", null));
   clusterStatsRequest.timeout(request.param("timeout"));
   client
       .admin()
       .cluster()
       .clusterStats(clusterStatsRequest, new RestToXContentListener<>(channel));
 }