Examples with Fields org.apache.storm.tuple.Fields used on opensource projects

Example 51 with Fields

use of org.apache.storm.tuple.Fields in project storm by apache.

the class JoinBoltExample method main.

public static void main(String[] args) throws Exception {
    FeederSpout genderSpout = new FeederSpout(new Fields("id", "gender"));
    FeederSpout ageSpout = new FeederSpout(new Fields("id", "age"));
    TopologyBuilder builder = new TopologyBuilder();
    builder.setSpout("genderSpout", genderSpout);
    builder.setSpout("ageSpout", ageSpout);
    // inner join of 'age' and 'gender' records on 'id' field
    JoinBolt joiner = new JoinBolt("genderSpout", "id").join("ageSpout", "id", "genderSpout").select("genderSpout:id,ageSpout:id,gender,age").withTumblingWindow(new BaseWindowedBolt.Duration(10, TimeUnit.SECONDS));
    builder.setBolt("joiner", joiner).fieldsGrouping("genderSpout", new Fields("id")).fieldsGrouping("ageSpout", new Fields("id"));
    builder.setBolt("printer", new PrinterBolt()).shuffleGrouping("joiner");
    Config conf = new Config();
    conf.setDebug(true);
    LocalCluster cluster = new LocalCluster();
    cluster.submitTopology("join-example", conf, builder.createTopology());
    generateGenderData(genderSpout);
    generateAgeData(ageSpout);
    Utils.sleep(30000);
    cluster.shutdown();
}

Example 52 with Fields

use of org.apache.storm.tuple.Fields in project storm by apache.

the class ReachTopology method construct.

public static LinearDRPCTopologyBuilder construct() {
    LinearDRPCTopologyBuilder builder = new LinearDRPCTopologyBuilder("reach");
    builder.addBolt(new GetTweeters(), 4);
    builder.addBolt(new GetFollowers(), 12).shuffleGrouping();
    builder.addBolt(new PartialUniquer(), 6).fieldsGrouping(new Fields("id", "follower"));
    builder.addBolt(new CountAggregator(), 3).fieldsGrouping(new Fields("id"));
    return builder;
}

Example 53 with Fields

use of org.apache.storm.tuple.Fields in project storm by apache.

the class SingleJoinExample method main.

public static void main(String[] args) throws Exception {
    FeederSpout genderSpout = new FeederSpout(new Fields("id", "gender"));
    FeederSpout ageSpout = new FeederSpout(new Fields("id", "age"));
    TopologyBuilder builder = new TopologyBuilder();
    builder.setSpout("gender", genderSpout);
    builder.setSpout("age", ageSpout);
    builder.setBolt("join", new SingleJoinBolt(new Fields("gender", "age"))).fieldsGrouping("gender", new Fields("id")).fieldsGrouping("age", new Fields("id"));
    Config conf = new Config();
    conf.setDebug(true);
    try (LocalCluster cluster = new LocalCluster();
        LocalTopology topo = cluster.submitTopology("join-example", conf, builder.createTopology())) {
        for (int i = 0; i < 10; i++) {
            String gender;
            if (i % 2 == 0) {
                gender = "male";
            } else {
                gender = "female";
            }
            genderSpout.feed(new Values(i, gender));
        }
        for (int i = 9; i >= 0; i--) {
            ageSpout.feed(new Values(i, i + 20));
        }
        Utils.sleep(2000);
    }
}

Example 54 with Fields

use of org.apache.storm.tuple.Fields in project storm by apache.

the class SkewedRollingTopWords method run.

/**
   * Submits (runs) the topology.
   *
   * Usage: "SkewedRollingTopWords [topology-name] [-local]"
   *
   * By default, the topology is run locally under the name
   * "slidingWindowCounts".
   *
   * Examples:
   *
   * ```
   *
   * # Runs in local mode (LocalCluster), with topology name "slidingWindowCounts"
   * $ storm jar storm-starter-jar-with-dependencies.jar org.apache.storm.starter.SkewedRollingTopWords -local
   *
   * # Runs in local mode (LocalCluster), with topology name "foobar"
   * $ storm jar storm-starter-jar-with-dependencies.jar org.apache.storm.starter.SkewedRollingTopWords foobar -local
   * 
   * # Runs in local mode (LocalCluster) for 30 seconds, with topology name "foobar" 
   * $ storm jar storm-starter-jar-with-dependencies.jar org.apache.storm.starter.SkewedRollingTopWords foobar -local -ttl 30
   *
   * # Runs in remote/cluster mode, with topology name "production-topology"
   * $ storm jar storm-starter-jar-with-dependencies.jar org.apache.storm.starter.SkewedRollingTopWords production-topology ```
   *
   * @param args
   *          First positional argument (optional) is topology name, second
   *          positional argument (optional) defines whether to run the topology
   *          locally ("-local") or remotely, i.e. on a real cluster.
   * @throws Exception
   */
protected int run(String[] args) {
    String topologyName = "slidingWindowCounts";
    if (args.length >= 1) {
        topologyName = args[0];
    }
    TopologyBuilder builder = new TopologyBuilder();
    String spoutId = "wordGenerator";
    String counterId = "counter";
    String aggId = "aggregator";
    String intermediateRankerId = "intermediateRanker";
    String totalRankerId = "finalRanker";
    builder.setSpout(spoutId, new TestWordSpout(), 5);
    builder.setBolt(counterId, new RollingCountBolt(9, 3), 4).partialKeyGrouping(spoutId, new Fields("word"));
    builder.setBolt(aggId, new RollingCountAggBolt(), 4).fieldsGrouping(counterId, new Fields("obj"));
    builder.setBolt(intermediateRankerId, new IntermediateRankingsBolt(TOP_N), 4).fieldsGrouping(aggId, new Fields("obj"));
    builder.setBolt(totalRankerId, new TotalRankingsBolt(TOP_N)).globalGrouping(intermediateRankerId);
    LOG.info("Topology name: " + topologyName);
    return submit(topologyName, conf, builder);
}

Example 55 with Fields

use of org.apache.storm.tuple.Fields in project storm by apache.

the class FluxBuilder method buildStreamDefinitions.

/**
     * @param context
     * @param builder
     */
private static void buildStreamDefinitions(ExecutionContext context, TopologyBuilder builder) throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, InstantiationException, IllegalAccessException, NoSuchFieldException {
    TopologyDef topologyDef = context.getTopologyDef();
    // process stream definitions
    HashMap<String, BoltDeclarer> declarers = new HashMap<String, BoltDeclarer>();
    for (StreamDef stream : topologyDef.getStreams()) {
        Object boltObj = context.getBolt(stream.getTo());
        BoltDeclarer declarer = declarers.get(stream.getTo());
        if (boltObj instanceof IRichBolt) {
            if (declarer == null) {
                declarer = builder.setBolt(stream.getTo(), (IRichBolt) boltObj, topologyDef.parallelismForBolt(stream.getTo()));
                declarers.put(stream.getTo(), declarer);
            }
        } else if (boltObj instanceof IBasicBolt) {
            if (declarer == null) {
                declarer = builder.setBolt(stream.getTo(), (IBasicBolt) boltObj, topologyDef.parallelismForBolt(stream.getTo()));
                declarers.put(stream.getTo(), declarer);
            }
        } else if (boltObj instanceof IWindowedBolt) {
            if (declarer == null) {
                declarer = builder.setBolt(stream.getTo(), (IWindowedBolt) boltObj, topologyDef.parallelismForBolt(stream.getTo()));
                declarers.put(stream.getTo(), declarer);
            }
        } else if (boltObj instanceof IStatefulBolt) {
            if (declarer == null) {
                declarer = builder.setBolt(stream.getTo(), (IStatefulBolt) boltObj, topologyDef.parallelismForBolt(stream.getTo()));
                declarers.put(stream.getTo(), declarer);
            }
        } else {
            throw new IllegalArgumentException("Class does not appear to be a bolt: " + boltObj.getClass().getName());
        }
        GroupingDef grouping = stream.getGrouping();
        // if the streamId is defined, use it for the grouping, otherwise assume storm's default stream
        String streamId = (grouping.getStreamId() == null ? Utils.DEFAULT_STREAM_ID : grouping.getStreamId());
        switch(grouping.getType()) {
            case SHUFFLE:
                declarer.shuffleGrouping(stream.getFrom(), streamId);
                break;
            case FIELDS:
                //TODO check for null grouping args
                declarer.fieldsGrouping(stream.getFrom(), streamId, new Fields(grouping.getArgs()));
                break;
            case ALL:
                declarer.allGrouping(stream.getFrom(), streamId);
                break;
            case DIRECT:
                declarer.directGrouping(stream.getFrom(), streamId);
                break;
            case GLOBAL:
                declarer.globalGrouping(stream.getFrom(), streamId);
                break;
            case LOCAL_OR_SHUFFLE:
                declarer.localOrShuffleGrouping(stream.getFrom(), streamId);
                break;
            case NONE:
                declarer.noneGrouping(stream.getFrom(), streamId);
                break;
            case CUSTOM:
                declarer.customGrouping(stream.getFrom(), streamId, buildCustomStreamGrouping(stream.getGrouping().getCustomClass(), context));
                break;
            default:
                throw new UnsupportedOperationException("unsupported grouping type: " + grouping);
        }
    }
}