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

Example 16 with Fields

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

the class TridentWindowingInmemoryStoreTopology method buildTopology.

public static StormTopology buildTopology(WindowsStoreFactory windowStore, WindowConfig windowConfig) throws Exception {
    FixedBatchSpout spout = new FixedBatchSpout(new Fields("sentence"), 3, new Values("the cow jumped over the moon"), new Values("the man went to the store and bought some candy"), new Values("four score and seven years ago"), new Values("how many apples can you eat"), new Values("to be or not to be the person"));
    spout.setCycle(true);
    TridentTopology topology = new TridentTopology();
    Stream stream = topology.newStream("spout1", spout).parallelismHint(16).each(new Fields("sentence"), new Split(), new Fields("word")).window(windowConfig, windowStore, new Fields("word"), new CountAsAggregator(), new Fields("count")).peek(new Consumer() {

        @Override
        public void accept(TridentTuple input) {
            LOG.info("Received tuple: [{}]", input);
        }
    });
    return topology.build();
}

Example 17 with Fields

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

the class TridentWordCount method buildTopology.

public static StormTopology buildTopology(LocalDRPC drpc) {
    FixedBatchSpout spout = new FixedBatchSpout(new Fields("sentence"), 3, new Values("the cow jumped over the moon"), new Values("the man went to the store and bought some candy"), new Values("four score and seven years ago"), new Values("how many apples can you eat"), new Values("to be or not to be the person"));
    spout.setCycle(true);
    TridentTopology topology = new TridentTopology();
    TridentState wordCounts = topology.newStream("spout1", spout).parallelismHint(16).each(new Fields("sentence"), new Split(), new Fields("word")).groupBy(new Fields("word")).persistentAggregate(new MemoryMapState.Factory(), new Count(), new Fields("count")).parallelismHint(16);
    topology.newDRPCStream("words", drpc).each(new Fields("args"), new Split(), new Fields("word")).groupBy(new Fields("word")).stateQuery(wordCounts, new Fields("word"), new MapGet(), new Fields("count")).each(new Fields("count"), new FilterNull()).project(new Fields("word", "count"));
    return topology.build();
}

Example 18 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 19 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 20 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);
    }
}