Package backtype.storm

Examples of backtype.storm.LocalDRPC

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  @SuppressWarnings("rawtypes")
  @Test
  public void testInTopology() throws InterruptedException {
    // Start local cluster
    LocalCluster cluster = new LocalCluster();
    LocalDRPC localDRPC = new LocalDRPC();

    try {

      // Build topology
      TridentTopology toppology = new TridentTopology();

      TridentState scaledStreamStatistics = toppology
      // emit tuples with random features
          .newStream("originalStream", new RandomFeaturesSpout(false, 2, 3.0))

          // Transform trident tupl to instance
          .each(new Fields("x0", "x1"), new InstanceCreator(false), new Fields("instance"))

          // Update original stream statistics
          .partitionPersist(new MemoryMapState.Factory(), new Fields("instance"), new StreamStatisticsUpdater("originalStreamStats", new StreamStatistics()),
              new Fields("instance", "originalStreamStats")).newValuesStream()

          // Standardized stream using original stream statistics
          .each(new Fields("instance", "originalStreamStats"), new StandardScaler(), new Fields("scaledInstance"))

          // Update scaled stream statistics
          .partitionPersist(new MemoryMapState.Factory(), new Fields("scaledInstance"), new StreamStatisticsUpdater("scaledStreamStats", new StreamStatistics()));

      toppology.newDRPCStream("queryStats", localDRPC)
          // Convert DRPC args to stat query
          .each(new Fields("args"), new TuplifyArgs(), new Fields("featureIndex", "queryType"))

          // Query scaled stream statistics
          .stateQuery(scaledStreamStatistics, new Fields("featureIndex", "queryType"), new StreamFeatureStatisticsQuery("scaledStreamStats"), new Fields("stats"))
          .project(new Fields("stats"));

      cluster.submitTopology("testStandardScaler", new Config(), toppology.build());

      Thread.sleep(8000);

      double mean0 = extractDouble(localDRPC.execute("queryStats", "[[0, \"MEAN\"]]"));
      double mean1 = extractDouble(localDRPC.execute("queryStats", "[[1, \"MEAN\"]]"));
      double variance0 = extractDouble(localDRPC.execute("queryStats", "[[0, \"VARIANCE\"]]"));
      double variance1 = extractDouble(localDRPC.execute("queryStats", "[[1, \"VARIANCE\"]]"));

      assertEquals(0.0, mean0, 0.1);
      assertEquals(0.0, mean1, 0.1);
      assertEquals(1.0, variance0, 0.1);
      assertEquals(1.0, variance1, 0.1);
    } finally {
      cluster.shutdown();
      localDRPC.shutdown();
    }
  }
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  @Test
  public void testInTopology() throws InterruptedException {
    // Start local cluster
    LocalCluster cluster = new LocalCluster();
    LocalDRPC localDRPC = new LocalDRPC();

    try {
      // Build topology
      TridentTopology toppology = new TridentTopology();

      // Training stream
      TridentState perceptronModel = toppology.newStream("nandsamples", new NANDSpout())
      // update classifier
          .partitionPersist(new MemoryMapState.Factory(), new Fields("instance"), new ClassifierUpdater<Boolean>("perceptron", new PerceptronClassifier()));

      // Classification stream
      toppology.newDRPCStream("predict", localDRPC)
      // convert DRPC args to instance
          .each(new Fields("args"), new DRPCArgsToInstance(), new Fields("instance"))

          // Query classifier to classify instance
          .stateQuery(perceptronModel, new Fields("instance"), new ClassifyQuery<Boolean>("perceptron"), new Fields("prediction")).project(new Fields("prediction"));
      cluster.submitTopology(this.getClass().getSimpleName(), new Config(), toppology.build());

      Thread.sleep(4000);

      assertEquals(Boolean.TRUE, extractPrediction(localDRPC.execute("predict", "1.0 0.0 0.0")));
      assertEquals(Boolean.TRUE, extractPrediction(localDRPC.execute("predict", "1.0 0.0 1.0")));
      assertEquals(Boolean.TRUE, extractPrediction(localDRPC.execute("predict", "1.0 1.0 0.0")));
      assertEquals(Boolean.FALSE, extractPrediction(localDRPC.execute("predict", "1.0 1.0 1.0")));
    } finally {
      cluster.shutdown();
      localDRPC.shutdown();
    }
  }
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        Config conf = new Config();
       
        if(args==null || args.length==0) {
            conf.setMaxTaskParallelism(3);
            LocalDRPC drpc = new LocalDRPC();
            LocalCluster cluster = new LocalCluster();
            cluster.submitTopology("reach-drpc", conf, builder.createLocalTopology(drpc));
           
            String[] urlsToTry = new String[] { "foo.com/blog/1", "engineering.twitter.com/blog/5", "notaurl.com"};
            for(String url: urlsToTry) {
                System.out.println("Reach of " + url + ": " + drpc.execute("reach", url));
            }
           
            cluster.shutdown();
            drpc.shutdown();
        } else {
            conf.setNumWorkers(6);
            StormSubmitter.submitTopology(args[0], conf, builder.createRemoteTopology());
        }
    }
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        builder.addBolt(new ExclaimBolt(), 3);
       
        Config conf = new Config();
       
        if(args==null || args.length==0) {
            LocalDRPC drpc = new LocalDRPC();
            LocalCluster cluster = new LocalCluster();
           
            cluster.submitTopology("drpc-demo", conf, builder.createLocalTopology(drpc));

            for(String word: new String[] {"hello", "goodbye"}) {
                System.out.println("Result for \"" + word + "\": "
                        + drpc.execute("exclamation", word));
            }
           
            cluster.shutdown();
            drpc.shutdown();
        } else {
            conf.setNumWorkers(3);
            StormSubmitter.submitTopology(args[0], conf, builder.createRemoteTopology());
        }
    }
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    public static void main(String[] args) throws Exception {
        Config conf = new Config();
        conf.setMaxSpoutPending(20);
        if(args.length==0) {
            LocalDRPC drpc = new LocalDRPC();
            LocalCluster cluster = new LocalCluster();
            cluster.submitTopology("wordCounter", conf, buildTopology(drpc));
            for(int i=0; i<100; i++) {
                System.out.println("DRPC RESULT: " + drpc.execute("words", "cat the dog jumped"));
                Thread.sleep(1000);
            }
        } else {
            conf.setNumWorkers(3);
            StormSubmitter.submitTopology(args[0], conf, buildTopology(null));       
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                .aggregate(new Fields("one"), new Sum(), new Fields("reach"));
        return topology.build();
    }

    public static void main(String[] args) throws Exception {
        LocalDRPC drpc = new LocalDRPC();

        Config conf = new Config();
        LocalCluster cluster = new LocalCluster();

        cluster.submitTopology("reach", conf, buildTopology(drpc));

        Thread.sleep(2000);

        System.out.println("REACH: " + drpc.execute("reach", "aaa"));
        System.out.println("REACH: " + drpc.execute("reach", "foo.com/blog/1"));
        System.out.println("REACH: " + drpc.execute("reach", "engineering.twitter.com/blog/5"));


        cluster.shutdown();
        drpc.shutdown();
    }
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    }
   
    public static void main(String[] args) {
        TopologyBuilder builder = new TopologyBuilder();
        LocalDRPC drpc = new LocalDRPC();
       
        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");
       
        LocalCluster cluster = new LocalCluster();
        Config conf = new Config();
        cluster.submitTopology("exclaim", conf, builder.createTopology());
       
        System.out.println(drpc.execute("exclamation", "aaa"));
        System.out.println(drpc.execute("exclamation", "bbb"));
       
    }
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  }

  public static void main(String[] args) throws Exception {
    Config conf = new Config();

    LocalDRPC drpc = new LocalDRPC();
    LocalCluster cluster = new LocalCluster();
    cluster.submitTopology("hackaton", conf, buildTopology(drpc));
  }
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  }

  public static void main(String[] args) throws Exception {
    Config conf = new Config();

    LocalDRPC drpc = new LocalDRPC();
    LocalCluster cluster = new LocalCluster();
    cluster.submitTopology("hackaton", conf, buildTopology(drpc));
  }
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  }

  public static void main(String[] args) throws Exception {
    Config conf = new Config();

    LocalDRPC drpc = new LocalDRPC();
    LocalCluster cluster = new LocalCluster();
    cluster.submitTopology("hackaton", conf, buildTopology(drpc));
  }
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