org.apache.storm.hdfs.bolt.rotation.FileSizeRotationPolicy Java Examples

@Test
public void testRotateOutputFile() throws IOException {
  SourceHandler handler = new SourceHandler(
      rotActions,
      new FileSizeRotationPolicy(10000, Units.MB), // Don't actually care about the rotation
      new CountSyncPolicy(1),
      testFormat,
      callback
  );

  handler.rotateOutputFile();

  // Function should ensure rotation actions and callback are called.
  verify(rotAction1).execute(any(), any());
  verify(rotAction2).execute(any(), any());
  verify(callback).removeKey();
}
 

/**
 * Create bolt which will persist ticks to HDFS.
 */
private static HdfsBolt createHdfsBolt() {

  // Use "|" instead of "," for field delimiter:
  RecordFormat format = new DelimitedRecordFormat()
    .withFieldDelimiter("|");
  // sync the filesystem after every 1k tuples:
  SyncPolicy syncPolicy = new CountSyncPolicy(100);

  // Rotate files when they reach 5MB:
  FileRotationPolicy rotationPolicy = 
    new FileSizeRotationPolicy(5.0f, Units.MB);

  // Write records to <user>/stock-ticks/ directory in HDFS:
  FileNameFormat fileNameFormat = new DefaultFileNameFormat()
    .withPath("stock-ticks/");

  HdfsBolt hdfsBolt = new HdfsBolt()
    .withFsUrl("hdfs://localhost:8020")
    .withFileNameFormat(fileNameFormat)
    .withRecordFormat(format)
    .withRotationPolicy(rotationPolicy)
    .withSyncPolicy(syncPolicy);

  return hdfsBolt;
}
 

public WARCHdfsBolt() {
    super();
    FileSizeRotationPolicy rotpol = new FileSizeRotationPolicy(1.0f,
            Units.GB);
    withRotationPolicy(rotpol);
    // dummy sync policy
    withSyncPolicy(new CountSyncPolicy(10));
    // default local filesystem
    withFsUrl("file:///");
}
 

public static void main(String[] args) {
    try{
        String zkhost = "wxb-1:2181,wxb-2:2181,wxb-3:2181";
        String topic = "order";
        String groupId = "id";
        int spoutNum = 3;
        int boltNum = 1;
        ZkHosts zkHosts = new ZkHosts(zkhost);//kafaka所在的zookeeper
        SpoutConfig spoutConfig = new SpoutConfig(zkHosts, topic, "/order", groupId);  // create /order /id
        spoutConfig.scheme = new SchemeAsMultiScheme(new StringScheme());
        KafkaSpout kafkaSpout = new KafkaSpout(spoutConfig);

        // HDFS bolt
        // use "|" instead of "," for field delimiter
        RecordFormat format = new DelimitedRecordFormat()
                .withFieldDelimiter("|");

        // sync the filesystem after every 1k tuples
        SyncPolicy syncPolicy = new CountSyncPolicy(1000);

        // rotate files when they reach 5MB
        FileRotationPolicy rotationPolicy = new FileSizeRotationPolicy(5.0f, FileSizeRotationPolicy.Units.MB);
        // FileRotationPolicy rotationPolicy = new TimedRotationPolicy(1.0f, TimedRotationPolicy.TimeUnit.MINUTES);

        FileNameFormat fileNameFormat = new DefaultFileNameFormat()
                .withPath("/tmp/").withPrefix("order_").withExtension(".log");

        HdfsBolt hdfsBolt = new HdfsBolt()
                .withFsUrl("hdfs://wxb-1:8020")
                .withFileNameFormat(fileNameFormat)
                .withRecordFormat(format)
                .withRotationPolicy(rotationPolicy)
                .withSyncPolicy(syncPolicy);

        TopologyBuilder builder = new TopologyBuilder();
        builder.setSpout("spout", kafkaSpout, spoutNum);
        builder.setBolt("check", new CheckOrderBolt(), boltNum).shuffleGrouping("spout");
        builder.setBolt("counter", new CounterBolt(),boltNum).shuffleGrouping("check");
        builder.setBolt("hdfs", hdfsBolt,boltNum).shuffleGrouping("counter");

        Config config = new Config();
        config.setDebug(true);

        if(args!=null && args.length > 0) {
            config.setNumWorkers(2);
            StormSubmitter.submitTopology(args[0], config, builder.createTopology());
        } else {
            config.setMaxTaskParallelism(2);

            LocalCluster cluster = new LocalCluster();
            cluster.submitTopology("Wordcount-Topology", config, builder.createTopology());

            Thread.sleep(500000);

            cluster.shutdown();
        }
    }catch (Exception e) {
        e.printStackTrace();
    }
}
 

private boolean initializeHDFSBolt(String topology_name, String name) {
	try {

		String messageUpstreamComponent = messageComponents
				.get(messageComponents.size() - 1);

		System.out.println("[OpenSOC] ------" + name
				+ " is initializing from " + messageUpstreamComponent);

		RecordFormat format = new DelimitedRecordFormat()
				.withFieldDelimiter(
						config.getString("bolt.hdfs.field.delimiter")
								.toString()).withFields(
						new Fields("message"));

		// sync the file system after every x number of tuples
		SyncPolicy syncPolicy = new CountSyncPolicy(Integer.valueOf(config
				.getString("bolt.hdfs.batch.size").toString()));

		// rotate files when they reach certain size
		FileRotationPolicy rotationPolicy = new FileSizeRotationPolicy(
				Float.valueOf(config.getString(
						"bolt.hdfs.file.rotation.size.in.mb").toString()),
				Units.MB);

		FileNameFormat fileNameFormat = new DefaultFileNameFormat()
				.withPath(config.getString("bolt.hdfs.wip.file.path")
						.toString());

		// Post rotate action
		MoveFileAction moveFileAction = (new MoveFileAction())
				.toDestination(config.getString(
						"bolt.hdfs.finished.file.path").toString());

		HdfsBolt hdfsBolt = new HdfsBolt()
				.withFsUrl(
						config.getString("bolt.hdfs.file.system.url")
								.toString())
				.withFileNameFormat(fileNameFormat)
				.withRecordFormat(format)
				.withRotationPolicy(rotationPolicy)
				.withSyncPolicy(syncPolicy)
				.addRotationAction(moveFileAction);
		if (config.getString("bolt.hdfs.compression.codec.class") != null) {
			hdfsBolt.withCompressionCodec(config.getString(
					"bolt.hdfs.compression.codec.class").toString());
		}

		builder.setBolt(name, hdfsBolt,
				config.getInt("bolt.hdfs.parallelism.hint"))
				.shuffleGrouping(messageUpstreamComponent, "message")
				.setNumTasks(config.getInt("bolt.hdfs.num.tasks"));

	} catch (Exception e) {
		e.printStackTrace();
		System.exit(0);
	}

	return true;
}
 

public static void main(String[] args) throws Exception {
    Config config = new Config();
    config.setNumWorkers(1);

    SentenceSpout spout = new SentenceSpout();

    // sync the filesystem after every 1k tuples
    SyncPolicy syncPolicy = new CountSyncPolicy(1000);

    // rotate files when they reach 5MB
    FileRotationPolicy rotationPolicy = new FileSizeRotationPolicy(5.0f, Units.MB);

    FileNameFormat fileNameFormat = new DefaultFileNameFormat()
            .withPath("/source/")
            .withExtension(".seq");

    // create sequence format instance.
    DefaultSequenceFormat format = new DefaultSequenceFormat("timestamp", "sentence");

    SequenceFileBolt bolt = new SequenceFileBolt()
            .withFsUrl(args[0])
            .withFileNameFormat(fileNameFormat)
            .withSequenceFormat(format)
            .withRotationPolicy(rotationPolicy)
            .withSyncPolicy(syncPolicy)
            .withCompressionType(SequenceFile.CompressionType.RECORD)
            .withCompressionCodec("deflate")
            .addRotationAction(new MoveFileAction().toDestination("/dest/"));




    TopologyBuilder builder = new TopologyBuilder();

    builder.setSpout(SENTENCE_SPOUT_ID, spout, 1);
    // SentenceSpout --> MyBolt
    builder.setBolt(BOLT_ID, bolt, 4)
            .shuffleGrouping(SENTENCE_SPOUT_ID);


    if (args.length == 1) {
        LocalCluster cluster = new LocalCluster();

        cluster.submitTopology(TOPOLOGY_NAME, config, builder.createTopology());
        waitForSeconds(120);
        cluster.killTopology(TOPOLOGY_NAME);
        cluster.shutdown();
        System.exit(0);
    } else if(args.length == 2) {
        StormSubmitter.submitTopology(args[1], config, builder.createTopology());
    }
}