Examples with DRPCSpout org.apache.storm.drpc.DRPCSpout used on opensource projects

Example 1 with DRPCSpout

use of org.apache.storm.drpc.DRPCSpout in project storm by apache.

the class TridentTopology method genSpoutIds.

private static Map<Node, String> genSpoutIds(Collection<SpoutNode> spoutNodes) {
    Map<Node, String> ret = new HashMap<>();
    int ctr = 0;
    for (SpoutNode n : spoutNodes) {
        if (n.type == SpoutNode.SpoutType.BATCH) {
            // if Batch spout then id contains txId
            ret.put(n, "spout-" + n.txId);
        } else if (n.type == SpoutNode.SpoutType.DRPC) {
            //if DRPC spout then id contains function
            ret.put(n, "spout-" + ((DRPCSpout) n.spout).get_function() + ctr);
            ctr++;
        } else {
            ret.put(n, "spout" + ctr);
            ctr++;
        }
    }
    return ret;
}

Example 2 with DRPCSpout

use of org.apache.storm.drpc.DRPCSpout in project storm by apache.

the class ManualDRPC method main.

public static void main(String[] args) throws Exception {
    TopologyBuilder builder = new TopologyBuilder();
    try (LocalDRPC drpc = new LocalDRPC();
        LocalCluster cluster = new LocalCluster()) {
        DRPCSpout spout = new DRPCSpout("exclamation", drpc);
        builder.setSpout("drpc", spout);
        builder.setBolt("exclaim", new ExclamationBolt(), 3).shuffleGrouping("drpc");
        builder.setBolt("return", new ReturnResults(), 3).shuffleGrouping("exclaim");
        Config conf = new Config();
        try (LocalTopology topo = cluster.submitTopology("exclaim", conf, builder.createTopology())) {
            System.out.println(drpc.execute("exclamation", "aaa"));
            System.out.println(drpc.execute("exclamation", "bbb"));
        }
    }
}