Examples of java.util.concurrent.ScheduledThreadPoolExecutor

java.util.concurrent.ScheduledThreadPoolExecutor
add constructors, etc. }} @since 1.5 @author Doug Lea

    // start web app to provide real-time tracking
    web = new SLSWebApp(this, metricsWebAddressPort);
    web.start();


    // a thread to update histogram timer
    pool = new ScheduledThreadPoolExecutor(2);
    pool.scheduleAtFixedRate(new HistogramsRunnable(), 0, 1000,
            TimeUnit.MILLISECONDS);


    // a thread to output metrics for real-tiem tracking
    pool.scheduleAtFixedRate(new MetricsLogRunnable(), 0, 1000,

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        assertEquals("Should not be any throttled messages left, found: " + throttledMessages, (Integer) 0, throttledMessages);
    }


    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        final ScheduledExecutorService badService = new ScheduledThreadPoolExecutor(1) {
            @Override
            public ScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit) {
                throw new RejectedExecutionException();
            }
        };

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    this.exec = exec;
    this.dispatcher = dispatcher;
    this.delService = delService;
    this.dirsHandler = dirsHandler;


    this.cacheCleanup = new ScheduledThreadPoolExecutor(1,
        new ThreadFactoryBuilder()
          .setNameFormat("ResourceLocalizationService Cache Cleanup")
          .build());
  }

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    @BeforeTest
    public void before() {
        input = mock(MessageInput.class);
        when(input.getUniqueReadableId()).thenReturn("input-id");
        poolExecutor = new ScheduledThreadPoolExecutor(1);
        aggregator = new GelfChunkAggregator(poolExecutor);
        remoteAddress = InetSocketAddress.createUnresolved("127.0.0.1", 4444);
    }

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        this.clockDaemon = clockDaemon;
    }


    public ScheduledThreadPoolExecutor getScheduledThreadPoolExecutor() {
        if (clockDaemon == null) {
            clockDaemon = new ScheduledThreadPoolExecutor(5, new ThreadFactory() {
                public Thread newThread(Runnable runnable) {
                    Thread thread = new Thread(runnable, "ActiveMQ Cleanup Timer");
                    thread.setDaemon(true);
                    return thread;
                }

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    public JDKTimerService() {
        this(1);
    }


    public JDKTimerService(int size) {
        this.scheduler = new ScheduledThreadPoolExecutor(size);
    }

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    _trailFileLocator = new TrailFileNotifier(_dir, _trailFileManager, _latestFile, 10, this);
    _rateMonitor.start();
    _rateMonitor.suspend();


    // start timer to collect stats
    _executor = new ScheduledThreadPoolExecutor(1, new NamedThreadFactory("StatsTime for " + dir, true)); // add directory to the thread name
    _executor.scheduleWithFixedDelay( new Runnable() {
      @Override
      public void run() {
        updateParserStats();
      }

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      ZooKeeperConnectionException, IOException, ClassNotFoundException {
    super(conf);
    errors = getErrorReporter(conf);


    int numThreads = conf.getInt("hbasefsck.numthreads", MAX_NUM_THREADS);
    executor = new ScheduledThreadPoolExecutor(numThreads, Threads.newDaemonThreadFactory("hbasefsck"));
  }

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      // Mess it up by leaving a hole in the assignment, meta, and hdfs data
      TEST_UTIL.getHBaseAdmin().disableTable(table);


      String[] args = {"-sidelineCorruptHFiles", "-repairHoles", "-ignorePreCheckPermission",
          table.getNameAsString()};
      ExecutorService exec = new ScheduledThreadPoolExecutor(10);
      HBaseFsck res = hbck.exec(exec, args);


      HFileCorruptionChecker hfcc = res.getHFilecorruptionChecker();
      assertEquals(hfcc.getHFilesChecked(), check);
      assertEquals(hfcc.getCorrupted().size(), corrupt);

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  // Disabled because fails sporadically.  Is this test right?  Timing-wise, there could be no
  // files in a column family on initial creation -- as suggested by Matteo.
  @Ignore @Test(timeout=180000)
  public void testQuarantineMissingFamdir() throws Exception {
    TableName table = TableName.valueOf(name.getMethodName());
    ExecutorService exec = new ScheduledThreadPoolExecutor(10);
    // inject a fault in the hfcc created.
    final FileSystem fs = FileSystem.get(conf);
    HBaseFsck hbck = new HBaseFsck(conf, exec) {
      @Override
      public HFileCorruptionChecker createHFileCorruptionChecker(boolean sidelineCorruptHFiles) throws IOException {

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