Java TridentState类代码示例

import storm.trident.TridentState; //导入依赖的package包/类
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()).aggregate(new Fields("count"), new Sum(), new Fields("sum"));
  return topology.build();
}
 

import storm.trident.TridentState; //导入依赖的package包/类
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)
			.each(new Fields("sentence"), new Split(), new Fields("word"))
			.groupBy(new Fields("word"))
			.persistentAggregate(new MemoryMapState.Factory(), new Count(), new Fields("count"))
			.parallelismHint(6);

	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())
			.aggregate(new Fields("count"), new Sum(), new Fields("sum"));

	return topology.build();
}
 

import storm.trident.TridentState; //导入依赖的package包/类
@Override
protected StormTopology buildTopology() {
    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);

    ESIndexState.Factory<Tweet> factory = new ESIndexState.Factory<>(getLocalClient(), Tweet.class);
    TridentTopology topology = new TridentTopology();

    TridentState state = topology.newStream("tweets", spout)
            .partitionPersist(factory, new Fields("sentence"), new ESIndexUpdater(new MyTridentTupleMapper()));

    topology.newDRPCStream("search", drpc)
            .each(new Fields("args"), new ExtractSearchArgs(), new Fields("query", "indices", "types"))
            .groupBy(new Fields("query", "indices", "types"))
            .stateQuery(state, new Fields("query", "indices", "types"), new QuerySearchIndexQuery(), new Fields("tweet"))
            .each(new Fields("tweet"), new FilterNull())
            .each(new Fields("tweet"), new CreateJson(), new Fields("json"))
            .project(new Fields("json"));

    return topology.build();
}
 

import storm.trident.TridentState; //导入依赖的package包/类
public static StormTopology buildTopology() {
    LOG.info("Building topology.");
    TridentTopology topology = new TridentTopology();
    StateFactory clickThruMemory = new MemoryMapState.Factory();
    ClickThruSpout spout = new ClickThruSpout();
    Stream inputStream = topology.newStream("clithru", spout);
    TridentState clickThruState = inputStream.each(new Fields("username", "campaign", "product", "click"), new Filter("click", "true"))
            .each(new Fields("username", "campaign", "product", "click"), new Distinct())
            .groupBy(new Fields("campaign"))
            .persistentAggregate(clickThruMemory, new Count(), new Fields("click_thru_count"));

    inputStream.groupBy(new Fields("campaign"))
            .persistentAggregate(new MemoryMapState.Factory(), new Count(), new Fields("impression_count"))
            .newValuesStream()
            .stateQuery(clickThruState, new Fields("campaign"), new MapGet(), new Fields("click_thru_count"))
            .each(new Fields("campaign", "impression_count", "click_thru_count"), new CampaignEffectiveness(), new Fields(""));

    return topology.build();
}
 

import storm.trident.TridentState; //导入依赖的package包/类
/**
	 * Topology builder
	 * @return
	 */
	public static StormTopology buildTopology() {

		TridentTopology topology = new TridentTopology();

		TridentState urlsState = topology.newStaticState(new UrlsDBFactory());
		//define the stream
		topology.newStream("countStream", new Spout())
		.each(new Fields(Spout.CLICK), new LongUrlEmitter(), new Fields(LongUrlEmitter.URL))
//			.parallelismHint(5)
		.partitionBy(new Fields(LongUrlEmitter.URL))
		.partitionPersist(new UrlsDBFactory(), new Fields(LongUrlEmitter.URL), new ProbCountBolt(), 
				new Fields(LongUrlEmitter.URL, ProbCountBolt.CURR_URL_COUNT))
//				.parallelismHint(5)
				.newValuesStream()
				.shuffle()
				.aggregate(new Fields(LongUrlEmitter.URL, ProbCountBolt.CURR_URL_COUNT), 
						new FirstNAggregator(1, ProbCountBolt.CURR_URL_COUNT, true), 
						new Fields(LongUrlEmitter.URL, ProbCountBolt.CURR_URL_COUNT))
				.each(new Fields(LongUrlEmitter.URL, ProbCountBolt.CURR_URL_COUNT), new Debug());

		return topology.build();
	}
 

import storm.trident.TridentState; //导入依赖的package包/类
public static StormTopology buildTopology(TransactionalTridentKafkaSpout spout) throws IOException {

        TridentTopology topology = new TridentTopology();
        TridentState count =
        topology
                .newStream("tweets", spout)
                .each(new Fields("str"), new ParseTweet(), new Fields("text", "content", "user"))
                .project(new Fields("content", "user"))
                .each(new Fields("content"), new OnlyHashtags())
                .each(new Fields("user"), new OnlyEnglish())
                .each(new Fields("content", "user"), new ExtractFollowerClassAndContentName(), new Fields("followerClass", "contentName"))
                .groupBy(new Fields("followerClass", "contentName"))
                .persistentAggregate(new MemoryMapState.Factory(), new Count(), new Fields("count"))
        ;


        topology
                .newDRPCStream("hashtag_count")
                .stateQuery(count, new TupleCollectionGet(), new Fields("followerClass", "contentName"))
                .stateQuery(count, new Fields("followerClass", "contentName"), new MapGet(), new Fields("count"))
                .groupBy(new Fields("followerClass"))
                .aggregate(new Fields("contentName", "count"), new FirstN.FirstNSortedAgg(1,"count", true), new Fields("contentName", "count"))
        ;

        return topology.build();
    }
 

import storm.trident.TridentState; //导入依赖的package包/类
public static StormTopology buildTopology(TransactionalTridentKafkaSpout spout) throws IOException {

        TridentTopology topology = new TridentTopology();
        TridentState count =
        topology
                .newStream("tweets", spout)
                .each(new Fields("str"), new ParseTweet(), new Fields("text", "content", "user"))
                .project(new Fields("content", "user"))
                .each(new Fields("content"), new OnlyHashtags())
                .each(new Fields("user"), new OnlyEnglish())
                .each(new Fields("content", "user"), new ExtractFollowerClassAndContentName(), new Fields("followerClass", "contentName"))
                .groupBy(new Fields("followerClass", "contentName"))
                .persistentAggregate(new MemoryMapState.Factory(), new Count(), new Fields("count"))
        ;


        topology
                .newDRPCStream("top_hashtags")
                .stateQuery(count, new TupleCollectionGet(), new Fields("followerClass", "contentName"))
                .stateQuery(count, new Fields("followerClass", "contentName"), new MapGet(), new Fields("count"))
                .aggregate(new Fields("contentName", "count"), new FirstN.FirstNSortedAgg(5,"count", true), new Fields("contentName", "count"))
        ;

        return topology.build();
    }
 

import storm.trident.TridentState; //导入依赖的package包/类
public static StormTopology buildTopology(TransactionalTridentKafkaSpout spout) throws IOException {

        TridentTopology topology = new TridentTopology();
        TridentState count =
        topology
                .newStream("tweets", spout)
                .each(new Fields("str"), new ParseTweet(), new Fields("status", "content", "user"))
                .project(new Fields("content", "user", "status"))
                .each(new Fields("content"), new OnlyHashtags())
                .each(new Fields("status"), new OnlyGeo())
                .each(new Fields("status", "content"), new ExtractLocation(), new Fields("country", "contentName"))
                .groupBy(new Fields("country", "contentName"))
                .persistentAggregate(new MemoryMapState.Factory(), new Count(), new Fields("count"))
        ;


        topology
                .newDRPCStream("location_hashtag_count")
                .stateQuery(count, new TupleCollectionGet(), new Fields("country", "contentName"))
                .stateQuery(count, new Fields("country", "contentName"), new MapGet(), new Fields("count"))
                .groupBy(new Fields("country"))
                .aggregate(new Fields("contentName", "count"), new FirstN.FirstNSortedAgg(3,"count", true), new Fields("contentName", "count"))
        ;

        return topology.build();
    }
 

import storm.trident.TridentState; //导入依赖的package包/类
public static StormTopology buildTopology(TransactionalTridentKafkaSpout spout) throws IOException {

        TridentTopology topology = new TridentTopology();
        TridentState count =
        topology
                .newStream("tweets", spout)
                .each(new Fields("str"), new ParseTweet(), new Fields("text", "content", "user"))
                .project(new Fields("content", "user"))
                .each(new Fields("content"), new OnlyHashtags())
                .each(new Fields("user"), new OnlyEnglish())
                .each(new Fields("content", "user"), new ExtractFollowerClassAndContentName(), new Fields("followerClass", "contentName"))
                .parallelismHint(3)
                .groupBy(new Fields("followerClass", "contentName"))
                .persistentAggregate(new HazelCastStateFactory(), new Count(), new Fields("count"))
                .parallelismHint(3)
        ;


        topology
                .newDRPCStream("hashtag_count")
                .each(new Constants<String>("< 100", "< 10K", "< 100K", ">= 100K"), new Fields("followerClass"))
                .stateQuery(count, new Fields("followerClass", "args"), new MapGet(), new Fields("count"))
        ;

        return topology.build();
    }
 

import storm.trident.TridentState; //导入依赖的package包/类
public static void main(String[] args) throws Exception {
    Config conf = new Config();

    // Submits the topology
    String topologyName = args[0];
    conf.setNumWorkers(8); // Our Vagrant environment has 8 workers

    FakeTweetsBatchSpout fakeTweets = new FakeTweetsBatchSpout(10);

    TridentTopology topology = new TridentTopology();
    TridentState countState =
            topology
                    .newStream("spout", fakeTweets)
                    .groupBy(new Fields("actor"))
                    .persistentAggregate(new MemoryMapState.Factory(), new Count(), new Fields("count"));

    topology
            .newDRPCStream("count_per_actor")
            .stateQuery(countState, new Fields("args"), new MapGet(), new Fields("count"));

    StormSubmitter.submitTopology(topologyName, conf, topology.build());

}
 

import storm.trident.TridentState; //导入依赖的package包/类
private static StormTopology buildTopology(final MlStormSpout mlStormSpout,
                                           final int parallelism,
                                           final int pcaRowWidth,
                                           final int numPrincipalComponents,
                                           final FieldTemplate template) {
    final TridentTopology topology = new TridentTopology();
    final Stream sensorStream = topology.newStream(FieldTemplate.FieldConstants.PCA.PCA, mlStormSpout);
    final StateFactory pcaFactory = new WindowedPcaFactory(pcaRowWidth, numPrincipalComponents, template);

    final TridentState principalComponents =
            sensorStream
                    .partitionPersist(pcaFactory, new Fields(template.getKeyField(), template.getFeatureVectorField()), new PrincipalComponentUpdater(template))
                    .parallelismHint(parallelism);


    topology.newDRPCStream(FieldTemplate.FieldConstants.PCA.PCA_DRPC)
            .broadcast()
            .stateQuery(principalComponents, new Fields(FieldTemplate.FieldConstants.ARGS), new PrincipalComponentsQuery(), new Fields(FieldTemplate.FieldConstants.PCA.PCA_COMPONENTS))
            .project(new Fields(FieldTemplate.FieldConstants.PCA.PCA_COMPONENTS))
            .aggregate(new Fields(FieldTemplate.FieldConstants.PCA.PCA_COMPONENTS), new PrincipalComponentsAggregator(), new Fields(FieldTemplate.FieldConstants.PCA.PCA_EIGEN))
            .project(new Fields(FieldTemplate.FieldConstants.PCA.PCA_EIGEN));

    return topology.build();
}
 

import storm.trident.TridentState; //导入依赖的package包/类
public static StormTopology buildTopology(LocalDRPC drpc) {
    TridentTopology topology = new TridentTopology();
    TridentState urlToTweeters =
            topology.newStaticState(
                new StaticSingleKeyMapState.Factory(TWEETERS_DB));
    TridentState tweetersToFollowers =
            topology.newStaticState(
                new StaticSingleKeyMapState.Factory(FOLLOWERS_DB));


    topology.newDRPCStream("reach", drpc)
            .stateQuery(urlToTweeters, new Fields("args"), new MapGet(), new Fields("tweeters"))
            .each(new Fields("tweeters"), new ExpandList(), new Fields("tweeter"))
            .shuffle()
            .stateQuery(tweetersToFollowers, new Fields("tweeter"), new MapGet(), new Fields("followers"))
            .each(new Fields("followers"), new ExpandList(), new Fields("follower"))
            .groupBy(new Fields("follower"))
            .aggregate(new One(), new Fields("one"))
            .aggregate(new Fields("one"), new Sum(), new Fields("reach"));
    return topology.build();
}
 

import storm.trident.TridentState; //导入依赖的package包/类
public StormTopology buildTopology(LocalDRPC drpc) {
    TridentKafkaConfig kafkaConfig = new TridentKafkaConfig(brokerHosts, "storm-sentence", "storm");
    kafkaConfig.scheme = new SchemeAsMultiScheme(new StringScheme());
    TransactionalTridentKafkaSpout kafkaSpout = new TransactionalTridentKafkaSpout(kafkaConfig);
    TridentTopology topology = new TridentTopology();

    TridentState wordCounts = topology.newStream("kafka", kafkaSpout).shuffle().
            each(new Fields("str"), new WordSplit(), new Fields("word")).
            groupBy(new Fields("word")).
            persistentAggregate(new HazelCastStateFactory(), new Count(), new Fields("aggregates_words")).parallelismHint(2);


    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())
            .aggregate(new Fields("count"), new Sum(), new Fields("sum"));

    return topology.build();
}
 

import storm.trident.TridentState; //导入依赖的package包/类
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())
            .aggregate(new Fields("count"), new Sum(), new Fields("sum"));
    return topology.build();
}
 

import storm.trident.TridentState; //导入依赖的package包/类
public static StormTopology buildTopology(LocalDRPC drpc) {
    FixedBatchSpout spout = new FixedBatchSpout(new Fields("word"), 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).flatMap(split).map(toUpper)
            .filter(theFilter).peek(new Consumer() {
                @Override
                public void accept(TridentTuple input) {
                    System.out.println(input.getString(0));
                }
            }).groupBy(new Fields("word"))
            .persistentAggregate(new MemoryMapState.Factory(), new Count(), new Fields("count"))
            .parallelismHint(16);
            
    topology.newDRPCStream("words", drpc).flatMap(split).groupBy(new Fields("args"))
            .stateQuery(wordCounts, new Fields("args"), new MapGet(), new Fields("count")).filter(new FilterNull())
            .aggregate(new Fields("count"), new Sum(), new Fields("sum"));
    return topology.build();
}