Example usage for java.util.concurrent ScheduledFuture cancel

Introduction

In this page you can find the example usage for java.util.concurrent ScheduledFuture cancel.

Prototype

boolean cancel(boolean mayInterruptIfRunning);

Source Link

Document

Attempts to cancel execution of this task.

Usage

From source file:org.apache.nifi.io.nio.ChannelListener.java

public void shutdown(final long period, final TimeUnit timeUnit) {
    channelDispatcher.stop();//from   www.ja  v a2 s.com
    for (SelectionKey selectionKey : socketChannelSelector.keys()) {
        final AbstractChannelReader reader = (AbstractChannelReader) selectionKey.attachment();
        selectionKey.cancel();
        if (reader != null) {
            while (!reader.isClosed()) {
                try {
                    Thread.sleep(channelReaderFrequencyMSecs);
                } catch (InterruptedException e) {
                }
            }
            final ScheduledFuture<?> readerFuture = reader.getScheduledFuture();
            readerFuture.cancel(false);
        }
        IOUtils.closeQuietly(selectionKey.channel()); // should already be closed via reader, but if reader did not exist...
    }
    IOUtils.closeQuietly(socketChannelSelector);

    for (SelectionKey selectionKey : serverSocketSelector.keys()) {
        selectionKey.cancel();
        IOUtils.closeQuietly(selectionKey.channel());
    }
    IOUtils.closeQuietly(serverSocketSelector);
    executor.shutdown();
    try {
        executor.awaitTermination(period, timeUnit);
    } catch (final InterruptedException ex) {
        LOGGER.warn("Interrupted while trying to shutdown executor");
    }
    final int currentBufferPoolSize = bufferPool.size();
    final String warning = (currentBufferPoolSize != initialBufferPoolSize)
            ? "Initial buffer count=" + initialBufferPoolSize + " Current buffer count=" + currentBufferPoolSize
                    + " Could indicate a buffer leak.  Ensure all consumers are executed until they complete."
            : "";
    LOGGER.info("Channel listener shutdown. " + warning);
}

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From source file:org.openhab.binding.amazonechocontrol.handler.FlashBriefingProfileHandler.java

@Override
public void dispose() {
    ScheduledFuture<?> updateStateJob = this.updateStateJob;
    this.updateStateJob = null;
    if (updateStateJob != null) {
        updateStateJob.cancel(false);
    }/*from w  ww  .  j a  va  2s  .co m*/
    super.dispose();
}

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From source file:com.l2jfree.gameserver.instancemanager.BossSpawnManager.java

/**
 * Saves all raidboss status and then clears all info from memory,
 * including all schedules./*w ww .  j av  a 2  s  .c  o m*/
 */
public void cleanUp() {
    updateDb();
    _bosses.clear();
    if (_schedules != null) {
        for (Integer bossId : _schedules.keySet()) {
            ScheduledFuture<?> f = _schedules.get(bossId);
            f.cancel(true);
        }
    }
    _schedules.clear();
    _storedInfo.clear();
    _spawns.clear();
}

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From source file:org.apache.hadoop.security.ssl.ReloadingX509TrustManager.java

/**
 * Stops the reloader thread./*from  w ww.  j  a v a2 s  . co  m*/
 */
public void destroy() {
    if (reloader != null) {
        ScheduledFuture task = reloader.get();
        if (task != null) {
            task.cancel(true);
            reloader = null;
        }
    }
}

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From source file:io.gravitee.gateway.services.healthcheck.HealthCheckService.java

private void stopHealthCheck(Api api) {
    ScheduledFuture scheduledFuture = scheduledTasks.remove(api);
    if (scheduledFuture != null) {
        if (!scheduledFuture.isCancelled()) {
            LOGGER.info("Stop health-check");
            scheduledFuture.cancel(true);
        } else {//from   w w w  .j  a  v  a 2  s . c  o m
            LOGGER.info("Health-check already shutdown");
        }
    }
}

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From source file:com.l2jfree.gameserver.instancemanager.BossSpawnManager.java

public void deleteSpawn(L2Spawn spawnDat, boolean updateDb) {
    if (spawnDat == null)
        return;//from   www  .  j  a  v a 2  s .  co  m
    if (!_spawns.containsKey(spawnDat.getNpcId()))
        return;

    int bossId = spawnDat.getNpcId();

    SpawnTable.getInstance().deleteSpawn(spawnDat, false);
    _spawns.remove(bossId);

    if (_bosses.containsKey(bossId))
        _bosses.remove(bossId);

    if (_schedules.containsKey(bossId)) {
        ScheduledFuture<?> f = _schedules.get(bossId);
        f.cancel(true);
        _schedules.remove(bossId);
    }

    if (_storedInfo.containsKey(bossId))
        _storedInfo.remove(bossId);

    if (updateDb)
        deleteFromDb(spawnDat, bossId);
}

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From source file:edu.umass.cs.gigapaxos.FailureDetection.java

private synchronized void cleanupFailedPingTask(NodeIDType id) {
    ScheduledFuture<PingTask> pingTask = this.futures.get(id);
    if (pingTask != null) {
        pingTask.cancel(true);
        this.futures.remove(id);
        sendKeepAlive(id);//from w  w  w . j a v a 2s  .com
    }
}

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From source file:io.fabric8.che.starter.openshift.CheDeploymentConfig.java

private void waitUntilDeploymentConfigIsAvailable(final OpenShiftClient client, String namespace) {
    final BlockingQueue<Object> queue = new ArrayBlockingQueue<Object>(1);

    final Runnable readinessPoller = new Runnable() {
        public void run() {
            try {
                if (isDeploymentAvailable(client, namespace)) {
                    queue.put(true);//from  w  w w .j a v a2s .  co  m
                    return;
                } else {
                    queue.put(false);
                    return;
                }
            } catch (Throwable t) {
                try {
                    if (queue.isEmpty()) {
                        queue.put(false);
                    }
                    return;
                } catch (InterruptedException e) {
                }
            }
        }
    };

    ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
    ScheduledFuture<?> poller = executor.scheduleWithFixedDelay(readinessPoller, 0, 500, TimeUnit.MILLISECONDS);
    executor.schedule(new Runnable() {

        @Override
        public void run() {
            poller.cancel(true);
        }
    }, Integer.valueOf(startTimeout), TimeUnit.SECONDS);
    try {
        while (!waitUntilReady(queue)) {
        }
    } finally {
        if (!poller.isDone()) {
            poller.cancel(true);
        }
        executor.shutdown();
    }
}

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From source file:org.apache.hadoop.security.ssl.ReloadingX509KeyManager.java

/**
 * Stops the reloading thread// www  .  j a  v a  2  s.  c o  m
 */
public void stop() {
    if (reloader != null) {
        ScheduledFuture task = reloader.get();
        if (task != null) {
            task.cancel(true);
            reloader = null;
        }
    }
}

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From source file:com.adaptris.core.RetryMessageErrorHandlerImp.java

private void shutdownExecutor() {
    sweeper.cancel(true);//from w ww  . j  a  v a  2  s .  co  m
    for (ScheduledFuture f : retries) {
        f.cancel(true);
    }
    retries.clear();
    ManagedThreadFactory.shutdownQuietly(executor, DEFAULT_POOL_TIMEOUT);
    executor = null;
}

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