Java Code Examples for java.util.concurrent.ScheduledFuture#getDelay()

The following examples show how to use java.util.concurrent.ScheduledFuture#getDelay() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ThreadUtils.java    From rqueue with Apache License 2.0 6 votes vote down vote up
public static void waitForTermination(
    Logger log, Future<?> future, long waitTimeInMillis, String msg, Object... msgParams) {
  if (future == null) {
    return;
  }
  boolean completedOrCancelled = future.isCancelled() || future.isDone();
  if (!completedOrCancelled) {
    if (future instanceof ScheduledFuture) {
      ScheduledFuture f = (ScheduledFuture) future;
      if (f.getDelay(TimeUnit.MILLISECONDS) > Constants.MIN_DELAY) {
        return;
      }
    }
  }
  waitForShutdown(log, future, waitTimeInMillis, msg, msgParams);
}
 
Example 2
Source File: JmxCacheBuster.java    From hbase with Apache License 2.0 6 votes vote down vote up
/**
 * For JMX to forget about all previously exported metrics.
 */
public static void clearJmxCache() {
  if (LOG.isTraceEnabled()) {
    LOG.trace("clearing JMX Cache" + StringUtils.stringifyException(new Exception()));
  }
  //If there are more then 100 ms before the executor will run then everything should be merged.
  ScheduledFuture future = fut.get();
  if ((future != null && (!future.isDone() && future.getDelay(TimeUnit.MILLISECONDS) > 100))) {
    // BAIL OUT
    return;
  }
  if (stopped.get()) {
    return;
  }
  future = executor.getExecutor().schedule(new JmxCacheBusterRunnable(), 5, TimeUnit.SECONDS);
  fut.set(future);
}
 
Example 3
Source File: ScheduledExecutorServiceTest.java    From threadly with Mozilla Public License 2.0 6 votes vote down vote up
@Test
public void scheduleCallableCancelTest() {
  ScheduledExecutorService scheduler = makeScheduler(1);
  try {
    TestCallable tcDelay = new TestCallable(0);
    ScheduledFuture<Object> delayF = scheduler.schedule(tcDelay, 20, TimeUnit.MILLISECONDS);
    long delay = delayF.getDelay(TimeUnit.MILLISECONDS);
    boolean canceled = delayF.cancel(true);
    
    assertTrue(delay <= 20);
    if (canceled) {
      assertTrue(delayF.isCancelled());
    }
  } finally {
    scheduler.shutdownNow();
  }
}
 
Example 4
Source File: ReschedulingRunnable.java    From spring-analysis-note with MIT License 5 votes vote down vote up
@Override
public long getDelay(TimeUnit unit) {
	ScheduledFuture<?> curr;
	synchronized (this.triggerContextMonitor) {
		curr = obtainCurrentFuture();
	}
	return curr.getDelay(unit);
}
 
Example 5
Source File: InMemoryJobService.java    From kogito-runtimes with Apache License 2.0 5 votes vote down vote up
@Override
public ZonedDateTime getScheduledTime(String id) {
    if (scheduledJobs.containsKey(id)) {
         ScheduledFuture<?> scheduled = scheduledJobs.get(id);
         
         long remainingTime = scheduled.getDelay(TimeUnit.MILLISECONDS);
         if (remainingTime > 0) {
             return ZonedDateTime.from(Instant.ofEpochMilli(System.currentTimeMillis() + remainingTime));
         }
    }
    
    return null;
}
 
Example 6
Source File: ReschedulingRunnable.java    From java-technology-stack with MIT License 5 votes vote down vote up
@Override
public long getDelay(TimeUnit unit) {
	ScheduledFuture<?> curr;
	synchronized (this.triggerContextMonitor) {
		curr = obtainCurrentFuture();
	}
	return curr.getDelay(unit);
}
 
Example 7
Source File: ReschedulingRunnable.java    From lams with GNU General Public License v2.0 5 votes vote down vote up
@Override
public long getDelay(TimeUnit unit) {
	ScheduledFuture<?> curr;
	synchronized (this.triggerContextMonitor) {
		curr = this.currentFuture;
	}
	return curr.getDelay(unit);
}
 
Example 8
Source File: ReschedulingRunnable.java    From spring4-understanding with Apache License 2.0 5 votes vote down vote up
@Override
public long getDelay(TimeUnit unit) {
	ScheduledFuture<?> curr;
	synchronized (this.triggerContextMonitor) {
		curr = this.currentFuture;
	}
	return curr.getDelay(unit);
}
 
Example 9
Source File: ReschedulingRunnable.java    From audit4j-core with Apache License 2.0 5 votes vote down vote up
/**
 * {@inheritDoc}
 * 
 * @see java.util.concurrent.Delayed#getDelay(java.util.concurrent.TimeUnit)
 *
 */
@Override
public long getDelay(TimeUnit unit) {
    ScheduledFuture<?> curr;
    synchronized (this.triggerContextMonitor) {
        curr = this.currentFuture;
    }
    return curr.getDelay(unit);
}
 
Example 10
Source File: Executors3.java    From java8-tutorial with MIT License 5 votes vote down vote up
private static void test1() throws InterruptedException {
    ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);

    Runnable task = () -> System.out.println("Scheduling: " + System.nanoTime());
    int delay = 3;
    ScheduledFuture<?> future = executor.schedule(task, delay, TimeUnit.SECONDS);

    TimeUnit.MILLISECONDS.sleep(1337);

    long remainingDelay = future.getDelay(TimeUnit.MILLISECONDS);
    System.out.printf("Remaining Delay: %sms\n", remainingDelay);
}
 
Example 11
Source File: DropService.java    From aion-germany with GNU General Public License v3.0 4 votes vote down vote up
/**
 * When player clicks on dead NPC to request drop list
 *
 * @param player
 * @param npcId
 */
public void requestDropList(Player player, int npcId) {
	DropNpc dropNpc = DropRegistrationService.getInstance().getDropRegistrationMap().get(npcId);
	if (player == null || dropNpc == null) {
		return;
	}

	if (!dropNpc.containsKey(player.getObjectId()) && !dropNpc.isFreeForAll()) {
		PacketSendUtility.sendPacket(player, SM_SYSTEM_MESSAGE.STR_LOOT_NO_RIGHT);
		return;
	}

	if (dropNpc.isBeingLooted()) {
		PacketSendUtility.sendPacket(player, SM_SYSTEM_MESSAGE.STR_LOOT_FAIL_ONLOOTING);
		return;
	}
	
	Set<DropItem> dropItems = DropRegistrationService.getInstance().getCurrentDropMap().get(npcId);
	
	if (dropItems == null || dropItems.size() == 0) {
		dropItems = Collections.emptySet();
		ThreadPoolManager.getInstance().schedule(new Runnable() {

			@Override
			public void run() {
				return;
			}
		}, 350); //Blocks Loot for 350ms and return if DropList is empty
	}
	else {
		dropNpc.setBeingLooted(player);
		VisibleObject visObj = World.getInstance().findVisibleObject(npcId);
		if (visObj instanceof Npc) {
			Npc npc = ((Npc) visObj);
			ScheduledFuture<?> decayTask = (ScheduledFuture<?>) npc.getController().cancelTask(TaskId.DECAY);
			if (decayTask != null) {
				long reamingDecayTime = decayTask.getDelay(TimeUnit.MILLISECONDS);
				dropNpc.setReamingDecayTime(reamingDecayTime);
			}
		}

		PacketSendUtility.sendPacket(player, new SM_LOOT_ITEMLIST(npcId, dropItems, player));
		PacketSendUtility.sendPacket(player, new SM_LOOT_STATUS(npcId, 2));
		player.unsetState(CreatureState.ACTIVE);
		player.setState(CreatureState.LOOTING);
		player.setLootingNpcOid(npcId);
		PacketSendUtility.broadcastPacket(player, new SM_EMOTION(player, EmotionType.START_LOOT, 0, npcId), true);
	}
}
 
Example 12
Source File: ProgMainLambdaThreadScheduledExectors06.java    From javase with MIT License 4 votes vote down vote up
private static void test1() throws InterruptedException {

        ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);

        Runnable task = () -> System.out.println("Scheduling: " + System.nanoTime() + ", Now = " + Instant.now());
	
        int delay = 3;
        ScheduledFuture<?> future = executor.schedule(task, delay, TimeUnit.SECONDS);

        TimeUnit.MILLISECONDS.sleep(1337);

        long remainingDelay = future.getDelay(TimeUnit.MILLISECONDS);
        System.out.printf("Remaining Delay: %sms\n", remainingDelay);

        TimeUnit.MILLISECONDS.sleep(10000);

	shutDown(executor);

    }