toppology.newDRPCStream("predict", localDRPC)
// Convert DRPC args to instance
.each(new Fields("args"), new DRPCArgsToInstance(), new Fields("instance"))
// Query kmeans to classify instance
.stateQuery(kmeansState, new Fields("instance"), new ClusterQuery("kmeans"), new Fields("prediction"))
.project(new Fields("prediction"));
cluster.submitTopology(this.getClass().getSimpleName(), new Config(), toppology.build());