Examples with TimedRotationPolicy org.apache.storm.hdfs.bolt.rotation.TimedRotationPolicy used on opensource projects

Example 1 with TimedRotationPolicy

use of org.apache.storm.hdfs.bolt.rotation.TimedRotationPolicy in project metron by apache.

the class SourceHandler method initialize.

private void initialize() throws IOException {
    this.fs = FileSystem.get(new Configuration());
    this.currentFile = createOutputFile();
    if (this.rotationPolicy instanceof TimedRotationPolicy) {
        long interval = ((TimedRotationPolicy) this.rotationPolicy).getInterval();
        this.rotationTimer = new Timer(true);
        TimerTask task = new TimerTask() {

            @Override
            public void run() {
                try {
                    rotateOutputFile();
                } catch (IOException e) {
                    LOG.warn("IOException during scheduled file rotation.", e);
                }
            }
        };
        this.rotationTimer.scheduleAtFixedRate(task, interval, interval);
    }
}

Example 2 with TimedRotationPolicy

use of org.apache.storm.hdfs.bolt.rotation.TimedRotationPolicy in project storm by apache.

the class AbstractHdfsBolt method prepare.

/**
     * Marked as final to prevent override. Subclasses should implement the doPrepare() method.
     * @param conf
     * @param topologyContext
     * @param collector
     */
public final void prepare(Map conf, TopologyContext topologyContext, OutputCollector collector) {
    this.writeLock = new Object();
    if (this.syncPolicy == null)
        throw new IllegalStateException("SyncPolicy must be specified.");
    if (this.rotationPolicy == null)
        throw new IllegalStateException("RotationPolicy must be specified.");
    if (this.fsUrl == null) {
        throw new IllegalStateException("File system URL must be specified.");
    }
    writers = new WritersMap(this.maxOpenFiles);
    this.collector = collector;
    this.fileNameFormat.prepare(conf, topologyContext);
    this.hdfsConfig = new Configuration();
    Map<String, Object> map = (Map<String, Object>) conf.get(this.configKey);
    if (map != null) {
        for (String key : map.keySet()) {
            this.hdfsConfig.set(key, String.valueOf(map.get(key)));
        }
    }
    try {
        HdfsSecurityUtil.login(conf, hdfsConfig);
        doPrepare(conf, topologyContext, collector);
    } catch (Exception e) {
        throw new RuntimeException("Error preparing HdfsBolt: " + e.getMessage(), e);
    }
    if (this.rotationPolicy instanceof TimedRotationPolicy) {
        startTimedRotationPolicy();
    }
}

Example 3 with TimedRotationPolicy

use of org.apache.storm.hdfs.bolt.rotation.TimedRotationPolicy in project storm by apache.

the class AbstractHdfsBolt method prepare.

/**
 * Marked as final to prevent override. Subclasses should implement the doPrepare() method.
 */
@Override
public final void prepare(Map<String, Object> conf, TopologyContext topologyContext, OutputCollector collector) {
    this.writeLock = new Object();
    if (this.syncPolicy == null) {
        throw new IllegalStateException("SyncPolicy must be specified.");
    }
    if (this.rotationPolicy == null) {
        throw new IllegalStateException("RotationPolicy must be specified.");
    }
    if (this.fsUrl == null) {
        throw new IllegalStateException("File system URL must be specified.");
    }
    writers = new WritersMap(this.maxOpenFiles, collector);
    this.collector = collector;
    this.fileNameFormat.prepare(conf, topologyContext);
    this.hdfsConfig = new Configuration();
    Map<String, Object> map = (Map<String, Object>) conf.get(this.configKey);
    if (map != null) {
        for (String key : map.keySet()) {
            this.hdfsConfig.set(key, String.valueOf(map.get(key)));
        }
    }
    try {
        HdfsSecurityUtil.login(conf, hdfsConfig);
        doPrepare(conf, topologyContext, collector);
    } catch (Exception e) {
        throw new RuntimeException("Error preparing HdfsBolt: " + e.getMessage(), e);
    }
    if (this.rotationPolicy instanceof TimedRotationPolicy) {
        startTimedRotationPolicy();
    }
}

Example 4 with TimedRotationPolicy

use of org.apache.storm.hdfs.bolt.rotation.TimedRotationPolicy in project storm by apache.

the class AbstractHdfsBolt method startTimedRotationPolicy.

private void startTimedRotationPolicy() {
    long interval = ((TimedRotationPolicy) this.rotationPolicy).getInterval();
    this.rotationTimer = new Timer(true);
    TimerTask task = new TimerTask() {

        @Override
        public void run() {
            doRotationAndRemoveAllWriters();
        }
    };
    this.rotationTimer.scheduleAtFixedRate(task, interval, interval);
}

Example 5 with TimedRotationPolicy

use of org.apache.storm.hdfs.bolt.rotation.TimedRotationPolicy in project storm by apache.

the class HdfsFileTopology method main.

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 TimedRotationPolicy(1.0f, TimedRotationPolicy.TimeUnit.MINUTES);
    FileNameFormat fileNameFormat = new DefaultFileNameFormat().withPath("/tmp/foo/").withExtension(".txt");
    // use "|" instead of "," for field delimiter
    RecordFormat format = new DelimitedRecordFormat().withFieldDelimiter("|");
    Yaml yaml = new Yaml();
    InputStream in = new FileInputStream(args[1]);
    Map<String, Object> yamlConf = (Map<String, Object>) yaml.load(in);
    in.close();
    config.put("hdfs.config", yamlConf);
    HdfsBolt bolt = new HdfsBolt().withConfigKey("hdfs.config").withFsUrl(args[0]).withFileNameFormat(fileNameFormat).withRecordFormat(format).withRotationPolicy(rotationPolicy).withSyncPolicy(syncPolicy).addRotationAction(new MoveFileAction().toDestination("/tmp/dest2/"));
    TopologyBuilder builder = new TopologyBuilder();
    builder.setSpout(SENTENCE_SPOUT_ID, spout, 1);
    // SentenceSpout --> MyBolt
    builder.setBolt(BOLT_ID, bolt, 4).shuffleGrouping(SENTENCE_SPOUT_ID);
    String topoName = TOPOLOGY_NAME;
    if (args.length == 3) {
        topoName = args[2];
    } else if (args.length > 3) {
        System.out.println("Usage: HdfsFileTopology [hdfs url] [hdfs yaml config file] <topology name>");
        return;
    }
    StormSubmitter.submitTopology(topoName, config, builder.createTopology());
}