public static void main(String[] args) {
   Random rand = new Random(47);
   ExecutorService exec = Executors.newCachedThreadPool();
   DelayQueue<DelayedTask> queue = new DelayQueue<DelayedTask>();
   // Fill with tasks that have random delays:
   for (int i = 0; i < 20; i++) queue.put(new DelayedTask(rand.nextInt(5000)));
   // Set the stopping point
   queue.add(new DelayedTask.EndSentinel(5000, exec));
   exec.execute(new DelayedTaskConsumer(queue));
 }
  /** {@inheritDoc} */
  @Override
  public void loadCache(GridBiInClosure<K, V> c, @Nullable Object... args) throws GridException {
    ExecutorService exec =
        new ThreadPoolExecutor(
            threadsCnt,
            threadsCnt,
            0L,
            MILLISECONDS,
            new ArrayBlockingQueue<Runnable>(batchQueueSize),
            new BlockingRejectedExecutionHandler());

    Iterator<I> iter = inputIterator(args);

    Collection<I> buf = new ArrayList<>(batchSize);

    try {
      while (iter.hasNext()) {
        if (Thread.currentThread().isInterrupted()) {
          U.warn(log, "Working thread was interrupted while loading data.");

          break;
        }

        buf.add(iter.next());

        if (buf.size() == batchSize) {
          exec.submit(new Worker(c, buf, args));

          buf = new ArrayList<>(batchSize);
        }
      }

      if (!buf.isEmpty()) exec.submit(new Worker(c, buf, args));
    } catch (RejectedExecutionException ignored) {
      // Because of custom RejectedExecutionHandler.
      assert false : "RejectedExecutionException was thrown while it shouldn't.";
    } finally {
      exec.shutdown();

      try {
        exec.awaitTermination(Long.MAX_VALUE, MILLISECONDS);
      } catch (InterruptedException ignored) {
        U.warn(log, "Working thread was interrupted while waiting for put operations to complete.");

        Thread.currentThread().interrupt();
      }
    }
  }
 public void run() {
   for (DelayedTask pt : sequence) {
     printnb(pt.summary() + " ");
   }
   print();
   print(this + " Calling shutdownNow()");
   exec.shutdownNow();
 }
 public static void main(String[] args) {
   ExecutorService exec = Executors.newCachedThreadPool();
   DelayQueue<Event> queue = new DelayQueue<Event>();
   GreenhouseControls gc = new GreenhouseControls(queue);
   gc.addEvent(gc.new Bell(900));
   Event[] eventList = {
     gc.new ThermostatNight(0),
     gc.new LightOn(200),
     gc.new LightOff(400),
     gc.new WaterOn(600),
     gc.new WaterOff(800),
     gc.new ThermostatDay(1400)
   };
   gc.addEvent(gc.new Restart(2000, eventList));
   if (args.length == 1) gc.addEvent(new GreenhouseControls.Terminate(new Integer(args[0]), exec));
   exec.execute(gc);
 }
Exemple #5
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 static Future<String> futureOutputOf(final InputStream is) {
   return drainers.submit(
       new Callable<String>() {
         public String call() throws IOException {
           return outputOf(is);
         }
       });
 }
Exemple #6
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  static void realMain(String[] args) throws Throwable {
    // jmap doesn't work on Windows
    if (System.getProperty("os.name").startsWith("Windows")) return;

    final String childClassName = Job.class.getName();
    final String classToCheckForLeaks = Job.classToCheckForLeaks();
    final String uniqueID = String.valueOf(new Random().nextInt(Integer.MAX_VALUE));

    final String[] jobCmd = {
      java,
      "-Xmx8m",
      "-classpath",
      System.getProperty("test.classes", "."),
      childClassName,
      uniqueID
    };
    final Process p = new ProcessBuilder(jobCmd).start();

    final String childPid =
        match(
            commandOutputOf(jps, "-m"),
            "(?m)^ *([0-9]+) +\\Q" + childClassName + "\\E *" + uniqueID + "$",
            1);

    final int n0 = objectsInUse(p, childPid, classToCheckForLeaks);
    final int n1 = objectsInUse(p, childPid, classToCheckForLeaks);
    equal(p.waitFor(), 0);
    equal(p.exitValue(), 0);
    failed += p.exitValue();

    // Check that no objects were leaked.
    System.out.printf("%d -> %d%n", n0, n1);
    check(Math.abs(n1 - n0) < 2); // Almost always n0 == n1
    check(n1 < 20);
    drainers.shutdown();
  }
 public void run() {
   exec.shutdownNow();
 }