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:com.linkedin.pinot.controller.helix.core.relocation.RealtimeSegmentRelocator.java

public RealtimeSegmentRelocator(PinotHelixResourceManager pinotHelixResourceManager, ControllerConf config) {
    _pinotHelixResourceManager = pinotHelixResourceManager;
    _helixManager = pinotHelixResourceManager.getHelixZkManager();
    _helixAdmin = pinotHelixResourceManager.getHelixAdmin();
    _runFrequencySeconds = getRunFrequencySeconds(config.getRealtimeSegmentRelocatorFrequency());

    _executorService = Executors.newSingleThreadScheduledExecutor(new ThreadFactory() {
        @Override/*from   w  w w  .j  a v  a 2s .  c o  m*/
        public Thread newThread(Runnable runnable) {
            Thread thread = new Thread(runnable);
            thread.setName("RealtimeSegmentRelocatorExecutorService");
            return thread;
        }
    });
}

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From source file:org.eclipse.che.api.builder.internal.SourcesManagerImpl.java

public SourcesManagerImpl(java.io.File directory) {
    this.directory = directory;
    tasks = new ConcurrentHashMap<>();
    projectKeyHolder = new AtomicReference<>();
    executor = Executors.newSingleThreadScheduledExecutor(new ThreadFactoryBuilder()
            .setNameFormat(getClass().getSimpleName() + "-FileCleaner-%d").setDaemon(true).build());
    listeners = new CopyOnWriteArraySet<>();
}

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From source file:org.hawkular.apm.performance.server.ClientSimulator.java

public void run() {
    Metrics metrics = new Metrics(name);
    ServiceRegistry reg = new DefaultServiceRegistry(systemConfig, metrics);

    List<PathConfiguration> paths = new ArrayList<PathConfiguration>();
    for (PathConfiguration pc : systemConfig.getPaths()) {
        for (int i = 0; i < pc.getWeight(); i++) {
            paths.add(pc);//from   w w w.j a v a2  s  .co m
        }
    }

    // Initialise publisher metrics handler
    TracePublisher publisher = ServiceResolver.getSingletonService(TracePublisher.class);
    if (publisher == null) {
        log.severe("Trace publisher has not been configured correctly");
        return;
    }

    publisher.setMetricHandler(new PublisherMetricHandler<Trace>() {
        @Override
        public void published(String tenantId, List<Trace> items, long metric) {
            metrics.publishTraces(metric);
        }
    });

    Executors.newSingleThreadScheduledExecutor(new ThreadFactory() {
        @Override
        public Thread newThread(Runnable r) {
            Thread t = Executors.defaultThreadFactory().newThread(r);
            t.setDaemon(true);
            return t;
        }
    }).scheduleAtFixedRate(new Runnable() {
        @Override
        public void run() {
            metrics.report();
        }
    }, 1, 1, TimeUnit.SECONDS);

    for (int i = 0; i < requesters; i++) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                System.out.println("THREAD: " + Thread.currentThread() + ": STARTED");

                for (int j = 0; j < invocations; j++) {
                    // Randomly select path
                    int index = (int) (Math.random() * (paths.size() - 1));

                    Service s = reg.getServiceInstance(paths.get(index).getService());

                    Message m = new Message(paths.get(index).getName());

                    s.call(m, null, null);
                }

                System.out.println("THREAD: " + Thread.currentThread() + ": FINISHED: " + new java.util.Date());

                synchronized (this) {
                    try {
                        wait(2000);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        }).start();
    }
}

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

private void schedulePeriodicValidation() {
    final ScheduledExecutorService executorService = Executors
            .newSingleThreadScheduledExecutor(CoreUtils.daemonThreadFactory());
    executorService.scheduleAtFixedRate(new Runnable() {
        @Override/*from www .j  a v  a 2  s  . com*/
        public void run() {
            licenseValid = validate();
        }
    }, 1, 24, TimeUnit.HOURS);
}

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From source file:com.twitter.hraven.hadoopJobMonitor.metrics.HadoopJobMonitorMetrics.java

static HadoopJobMonitorMetrics create(Configuration conf) {
    MetricsSystem ms = DefaultMetricsSystem.instance();

    HadoopJobMonitorMetrics metricObject = new HadoopJobMonitorMetrics();
    MetricsSourceBuilder sb = MetricsAnnotations.newSourceBuilder(metricObject);
    final MetricsSource s = sb.build();
    ms.register("HadoopJobMonitorMetrics", "The Metrics of HadoopJobMonitor service", s);

    ScheduledExecutorService heartbeatExecutor = Executors
            .newSingleThreadScheduledExecutor(new SimpleThreadFactory());
    heartbeatExecutor.scheduleAtFixedRate(metricObject.new Heart(), 0, 1, TimeUnit.MINUTES);
    return metricObject;
}

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From source file:org.apache.synapse.commons.jmx.ThreadingView.java

public ThreadingView(final String threadNamePrefix) {
    this.threadNamePrefix = threadNamePrefix;
    this.scheduler = Executors.newSingleThreadScheduledExecutor(new ThreadFactory() {
        public Thread newThread(Runnable r) {
            return new Thread(r, "Thread-view-" + threadNamePrefix);
        }// w  w  w  .j  a  va 2  s. c  o  m
    });
    initMBean();
}

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From source file:com.careerly.common.support.ReloadablePropertySourcesPlaceholderConfigurer.java

@Override
public void afterPropertiesSet() throws Exception {
    Assert.notEmpty(locations, "properties reload, locations not given");
    // ??/*w w w.j a va2 s  .  co m*/
    for (Resource resource : locations) {
        long modified = resource.lastModified();
        String modifiedTime = new DateTime(modified).toString("yyyy-MM-dd HH:mm:ss");
        logger.info("properties monitor, file: {}, modified: {}", resource.getFile().getPath(), modifiedTime);
        lastModifiedResources.put(resource, modified);
    }
    // ??Constant?
    for (String beanName : beanFactory.getBeanDefinitionNames()) {
        if (beanName.endsWith("Constant")) {
            logger.info("properties monitor, bean: {}", beanName);
            beanNames.add(beanName);
        }
    }
    // ??10??JDK7?nio2 Watch Service
    scheduler = Executors.newSingleThreadScheduledExecutor(new NamedThreadFactory("properties-reload"));
    scheduler.scheduleWithFixedDelay(this, 120L, 10L, TimeUnit.SECONDS);
}

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From source file:net.sourceforge.subsonic.service.PodcastService.java

public PodcastService() {
    ThreadFactory threadFactory = new ThreadFactory() {
        public Thread newThread(Runnable r) {
            Thread t = Executors.defaultThreadFactory().newThread(r);
            t.setDaemon(true);//from   www .j  ava2 s. c  o m
            return t;
        }
    };
    refreshExecutor = Executors.newFixedThreadPool(5, threadFactory);
    downloadExecutor = Executors.newFixedThreadPool(3, threadFactory);
    scheduledExecutor = Executors.newSingleThreadScheduledExecutor(threadFactory);
}

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From source file:password.pwm.svc.wordlist.AbstractWordlist.java

public void init(final PwmApplication pwmApplication) throws PwmException {
    this.pwmApplication = pwmApplication;
    this.localDB = pwmApplication.getLocalDB();
    if (pwmApplication.getConfig().isDevDebugMode()) {
        debugTrace = true;//ww w . jav a 2  s  .co  m
    }

    executorService = Executors.newSingleThreadScheduledExecutor(JavaHelper
            .makePwmThreadFactory(JavaHelper.makeThreadName(pwmApplication, this.getClass()) + "-", true));
}

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

@BeforeMethod
@Override/* w  w w . jav a 2 s .  co  m*/
public void setup() throws Exception {
    super.internalSetup();

    admin.clusters().createCluster("use", new ClusterData("http://127.0.0.1:" + BROKER_WEBSERVICE_PORT));
    admin.tenants().createTenant("my-property",
            new TenantInfo(Sets.newHashSet("appid1", "appid2"), Sets.newHashSet("use")));
    admin.namespaces().createNamespace("my-property/use/my-ns");

    compactionScheduler = Executors.newSingleThreadScheduledExecutor(
            new ThreadFactoryBuilder().setNameFormat("compaction-%d").setDaemon(true).build());
    bk = pulsar.getBookKeeperClientFactory().create(this.conf, null);
}

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