Example usage for java.util.concurrent Executors newSingleThreadScheduledExecutor

Introduction

In this page you can find the example usage for java.util.concurrent Executors newSingleThreadScheduledExecutor.

Prototype

public static ScheduledExecutorService newSingleThreadScheduledExecutor(ThreadFactory threadFactory)

Source Link

Document

Creates a single-threaded executor that can schedule commands to run after a given delay, or to execute periodically.

Usage

From source file:org.apache.pulsar.compaction.CompactorTool.java

public static void main(String[] args) throws Exception {
    Arguments arguments = new Arguments();
    JCommander jcommander = new JCommander(arguments);
    jcommander.setProgramName("PulsarTopicCompactor");

    // parse args by JCommander
    jcommander.parse(args);//from   www.  java  2s. c o  m
    if (arguments.help) {
        jcommander.usage();
        System.exit(-1);
    }

    // init broker config
    ServiceConfiguration brokerConfig;
    if (isBlank(arguments.brokerConfigFile)) {
        jcommander.usage();
        throw new IllegalArgumentException("Need to specify a configuration file for broker");
    } else {
        brokerConfig = PulsarConfigurationLoader.create(arguments.brokerConfigFile, ServiceConfiguration.class);
    }

    ClientBuilder clientBuilder = PulsarClient.builder();

    if (isNotBlank(brokerConfig.getBrokerClientAuthenticationPlugin())) {
        clientBuilder.authentication(brokerConfig.getBrokerClientAuthenticationPlugin(),
                brokerConfig.getBrokerClientAuthenticationParameters());
    }

    if (brokerConfig.getBrokerServicePortTls().isPresent()) {
        clientBuilder.serviceUrl(PulsarService.brokerUrlTls(brokerConfig))
                .allowTlsInsecureConnection(brokerConfig.isTlsAllowInsecureConnection())
                .tlsTrustCertsFilePath(brokerConfig.getTlsCertificateFilePath());

    } else {
        clientBuilder.serviceUrl(PulsarService.brokerUrl(brokerConfig));
    }

    ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor(
            new ThreadFactoryBuilder().setNameFormat("compaction-%d").setDaemon(true).build());

    OrderedScheduler executor = OrderedScheduler.newSchedulerBuilder().build();
    ZooKeeperClientFactory zkClientFactory = new ZookeeperBkClientFactoryImpl(executor);

    ZooKeeper zk = zkClientFactory.create(brokerConfig.getZookeeperServers(),
            ZooKeeperClientFactory.SessionType.ReadWrite, (int) brokerConfig.getZooKeeperSessionTimeoutMillis())
            .get();
    BookKeeperClientFactory bkClientFactory = new BookKeeperClientFactoryImpl();
    BookKeeper bk = bkClientFactory.create(brokerConfig, zk);
    try (PulsarClient pulsar = clientBuilder.build()) {
        Compactor compactor = new TwoPhaseCompactor(brokerConfig, pulsar, bk, scheduler);
        long ledgerId = compactor.compact(arguments.topic).get();
        log.info("Compaction of topic {} complete. Compacted to ledger {}", arguments.topic, ledgerId);
    } finally {
        bk.close();
        bkClientFactory.close();
        zk.close();
        scheduler.shutdownNow();
        executor.shutdown();
    }
}

From source file:Main.java

/**
 * Wrapper over newSingleThreadScheduledExecutor.
 *//* w  ww  .  j  a v  a2  s  . c  o  m*/
public static ScheduledExecutorService newDaemonSingleThreadScheduledExecutor(String threadName) {
    ThreadFactory threadFactory = new ThreadFactoryBuilder().setDaemon(true).setNameFormat(threadName).build();
    return Executors.newSingleThreadScheduledExecutor(threadFactory);
}

From source file:Main.java

public static ScheduledExecutorService newSingleThreadScheduledExecutor(String processName) {
    return Executors.newSingleThreadScheduledExecutor(newThreadFactory(processName));
}

From source file:Main.java

/**
 * Instantiates a new single threaded scheduled executor whose thread has the specified name.
 *
 * @param threadName The name of the thread.
 * @return The executor.//from   w w  w  .  java 2s .  c  o  m
 */
public static ScheduledExecutorService newSingleThreadScheduledExecutor(final String threadName) {
    return Executors.newSingleThreadScheduledExecutor(new ThreadFactory() {
        @Override
        public Thread newThread(Runnable r) {
            return new Thread(r, threadName);
        }
    });
}

From source file:Main.java

public static ScheduledExecutorService newSingleThreadScheduledExecutor(String processName, boolean isDaemon) {
    return Executors.newSingleThreadScheduledExecutor(newThreadFactory(processName, isDaemon));
}

From source file:org.jactr.core.concurrent.ExecutorServices.java

static protected void initialize() {
    addExecutor(INLINE, INLINE_EXECUTOR);
    addExecutor(BACKGROUND, Executors.newSingleThreadExecutor(new GeneralThreadFactory("jACTR-Background")));
    addExecutor(PERIODIC,//from www.ja  v a 2  s  . c o m
            Executors.newSingleThreadScheduledExecutor(new GeneralThreadFactory("jACT-R Periodic")));
}

From source file:org.xdi.oxd.server.license.LicenseUpdateService.java

private void scheduleUpdatePinger() {
    final ScheduledExecutorService executorService = Executors
            .newSingleThreadScheduledExecutor(CoreUtils.daemonThreadFactory());
    executorService.scheduleAtFixedRate(new Runnable() {
        @Override//w w  w  .  j  a  va 2  s. c om
        public void run() {
            updateLicenseFromServer();
        }
    }, 1, conf.getLicenseCheckPeriodInHours(), TimeUnit.HOURS);
}

From source file:org.apache.synapse.aspects.flow.statistics.log.StatisticEventProcessor.java

public static void initializeCleaningThread() {
    //Thread to consume queue and update data structures for publishing
    ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor(new ThreadFactory() {
        public Thread newThread(Runnable r) {
            Thread t = new Thread(r);
            t.setName("Mediation Statistic Stale Entry Cleaning Task");
            return t;
        }// w ww . j  ava 2s  . c om
    });
    Long eventCleanTime = Long.parseLong(
            SynapsePropertiesLoader.getPropertyValue(StatisticsConstants.FLOW_STATISTICS_EVENT_CLEAN_TIME,
                    StatisticsConstants.FLOW_STATISTICS_DEFAULT_EVENT_CLEAN_INTERVAL));
    StatisticCleaningThread statisticCleaningThread = new StatisticCleaningThread(runtimeStatistics);
    executor.scheduleAtFixedRate(statisticCleaningThread, 0, eventCleanTime, TimeUnit.MILLISECONDS);
}

From source file:com.xyxy.platform.examples.showcase.demos.schedule.JdkTimerJob.java

@PostConstruct
public void start() throws Exception {
    Validate.isTrue(period > 0);//from w w  w. java2  s  .c o  m

    // ?schedule, Spring TaskUtilsLOG_AND_SUPPRESS_ERROR_HANDLER?
    Runnable task = TaskUtils.decorateTaskWithErrorHandler(this, null, true);

    // ?SechdulerExecutor,guavaThreadFactoryBuilder???
    scheduledExecutorService = Executors.newSingleThreadScheduledExecutor(
            new ThreadFactoryBuilder().setNameFormat("JdkTimerJob-%1$d").build());

    // scheduleAtFixedRatefixRate() ?.
    // scheduleAtFixedDelay() ???.
    scheduledExecutorService.scheduleAtFixedRate(task, initialDelay, period, TimeUnit.SECONDS);
}

From source file:com.github.lburgazzoli.quickfixj.core.FIXContext.java

/**
 * c-tor/*from   w ww  .j a va 2s  . c  om*/
 *
 * @param id;
 */
public FIXContext(String id) {
    m_id = id;
    m_threadFactory = new NamedThreadFactory("QFJ_Timer");
    m_scheduler = Executors.newSingleThreadScheduledExecutor(m_threadFactory);
    m_sessions = Maps.newConcurrentMap();
}