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.openscada.hd.server.storage.master.hds.StorageManager.java

public StorageManager(final BundleContext context, final DataFilePool pool) {
    super(makeBase(context));

    this.context = context;
    this.pool = pool;

    this.updateExecutor = Executors.newSingleThreadScheduledExecutor(new NamedThreadFactory("HDSUpdate"));
    this.eventExecutor = new ScheduledExportedExecutorService(
            "org.openscada.hd.server.storage.master.hds.events", 1);

    initialize();//w  w w .  j a  v  a 2s  . c om
}

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From source file:com.twitter.distributedlog.feature.DynamicConfigurationFeatureProvider.java

public DynamicConfigurationFeatureProvider(String rootScope, DistributedLogConfiguration conf,
        StatsLogger statsLogger) {/*ww  w  . jav a  2s  . co  m*/
    super(rootScope, conf, statsLogger);
    this.features = new ConcurrentHashMap<String, SettableFeature>();
    this.featuresConf = new ConcurrentBaseConfiguration();
    this.executorService = Executors.newSingleThreadScheduledExecutor(
            new ThreadFactoryBuilder().setNameFormat("DynamicConfigurationFeatureProvider-%d").build());
}

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From source file:gobblin.cluster.ScheduledJobConfigurationManager.java

public ScheduledJobConfigurationManager(EventBus eventBus, Config config) {
    super(eventBus, config);

    this.jobSpecs = Maps.newHashMap();
    this.refreshIntervalInSeconds = ConfigUtils.getLong(config,
            GobblinClusterConfigurationKeys.JOB_SPEC_REFRESH_INTERVAL, DEFAULT_JOB_SPEC_REFRESH_INTERVAL);

    this.fetchJobSpecExecutor = Executors.newSingleThreadScheduledExecutor(
            ExecutorsUtils.newThreadFactory(Optional.of(LOGGER), Optional.of("FetchJobSpecExecutor")));

    this.aliasResolver = new ClassAliasResolver<>(SpecExecutorInstanceConsumer.class);
    try {//from  www. jav  a  2s.  c o  m
        String specExecutorInstanceConsumerClassName = GobblinClusterConfigurationKeys.DEFAULT_SPEC_EXECUTOR_INSTANCE_CONSUMER_CLASS;
        if (config.hasPath(GobblinClusterConfigurationKeys.SPEC_EXECUTOR_INSTANCE_CONSUMER_CLASS_KEY)) {
            specExecutorInstanceConsumerClassName = config
                    .getString(GobblinClusterConfigurationKeys.SPEC_EXECUTOR_INSTANCE_CONSUMER_CLASS_KEY);
        }
        LOGGER.info("Using SpecExecutorInstanceConsumer ClassNameclass name/alias "
                + specExecutorInstanceConsumerClassName);
        this.specExecutorInstanceConsumer = (SpecExecutorInstanceConsumer) ConstructorUtils.invokeConstructor(
                Class.forName(this.aliasResolver.resolve(specExecutorInstanceConsumerClassName)), config);
    } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException | InstantiationException
            | ClassNotFoundException e) {
        throw new RuntimeException(e);
    }
}

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From source file:org.apache.gobblin.cluster.ScheduledJobConfigurationManager.java

public ScheduledJobConfigurationManager(EventBus eventBus, Config config) {
    super(eventBus, config);

    this.jobSpecs = Maps.newHashMap();
    this.refreshIntervalInSeconds = ConfigUtils.getLong(config,
            GobblinClusterConfigurationKeys.JOB_SPEC_REFRESH_INTERVAL, DEFAULT_JOB_SPEC_REFRESH_INTERVAL);

    this.fetchJobSpecExecutor = Executors.newSingleThreadScheduledExecutor(
            ExecutorsUtils.newThreadFactory(Optional.of(LOGGER), Optional.of("FetchJobSpecExecutor")));

    this.aliasResolver = new ClassAliasResolver<>(SpecConsumer.class);
    try {//ww w.  ja  v  a  2s.  c om
        String specConsumerClassName = GobblinClusterConfigurationKeys.DEFAULT_SPEC_CONSUMER_CLASS;
        if (config.hasPath(GobblinClusterConfigurationKeys.SPEC_CONSUMER_CLASS_KEY)) {
            specConsumerClassName = config.getString(GobblinClusterConfigurationKeys.SPEC_CONSUMER_CLASS_KEY);
        }
        LOGGER.info("Using SpecConsumer ClassNameclass name/alias " + specConsumerClassName);
        this._specConsumer = (SpecConsumer) ConstructorUtils
                .invokeConstructor(Class.forName(this.aliasResolver.resolve(specConsumerClassName)), config);
    } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException | InstantiationException
            | ClassNotFoundException e) {
        throw new RuntimeException(e);
    }
}

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From source file:io.tilt.minka.spectator.PublishSubscribeQueue.java

protected PublishSubscribeQueue(final String name, final Consumer<MessageMetadata> consumer,
        final long retentionMs, final CuratorFramework client, final String logId) {

    this.name = name;
    this.userListener = consumer;
    this.retentionMs = retentionMs;
    this.client = client;
    this.logId = logId;
    this.retentionExecutor = Executors.newSingleThreadScheduledExecutor(
            new ThreadFactoryBuilder().setNameFormat("SPECTATOR-Queues-Retainer").build());

    start(retentionMs);//  w  ww.  j a va  2 s.  c  om
}

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From source file:de.metas.ui.web.websocket.WebSocketProducersRegistry.java

public WebSocketProducersRegistry() {
    scheduler = Executors.newSingleThreadScheduledExecutor(CustomizableThreadFactory.builder()
            .setThreadNamePrefix(getClass().getName()).setDaemon(true).build());
}

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From source file:com.astamuse.asta4d.web.util.timeout.DefaultSessionAwareTimeoutDataManager.java

@Override
public void start() {
    // init fields
    dataMap = new ConcurrentHashMap<>();
    dataCounter = new AtomicInteger();
    service = Executors.newSingleThreadScheduledExecutor(new ThreadFactory() {
        @Override/*from w  w w  .  ja  va  2 s  .  c o m*/
        public Thread newThread(Runnable r) {
            return new Thread(r, checkThreadName);
        }
    });

    // start check thread
    service.scheduleAtFixedRate(new Runnable() {
        @Override
        public void run() {
            List<Entry<String, DataHolder>> entries = new ArrayList<>(dataMap.entrySet());
            long currentTime = System.currentTimeMillis();
            int removedCounter = 0;
            Object existing;
            for (Entry<String, DataHolder> entry : entries) {
                if (entry.getValue().isExpired(currentTime)) {
                    existing = dataMap.remove(entry.getKey());
                    if (existing != null) {// we removed it successfully
                        removedCounter++;
                    }
                }
            }
            if (removedCounter > 0) {
                dataCounter.addAndGet(-removedCounter);
            }
        }
    }, expirationCheckPeriodInMilliseconds, expirationCheckPeriodInMilliseconds, TimeUnit.MILLISECONDS);
}

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From source file:com.opengamma.language.connector.ClientContextFactoryBean.java

private void setDefaults() {
    setFudgeContext(FudgeContext.GLOBAL_DEFAULT);
    setHousekeepingScheduler(//from  w ww. j  av a  2s  . c om
            Executors.newSingleThreadScheduledExecutor(new CustomizableThreadFactory("Scheduler-")));
    setMessageTimeout(3000);
    setHeartbeatTimeout(4000);
    setTerminationTimeout(30000);
    setMaxThreadsPerClient(Math.max(2, Runtime.getRuntime().availableProcessors()));
    setMaxClientThreads(Integer.MAX_VALUE);
    // messageHandler defaults to null and must be set
}

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From source file:org.wso2.carbon.cluster.coordinator.rdbms.RDBMSMemberEventProcessor.java

public RDBMSMemberEventProcessor(String nodeId, DataSource dataSource) {
    this.communicationBusContext = new RDBMSCommunicationBusContextImpl(dataSource);
    ThreadFactory namedThreadFactory = new ThreadFactoryBuilder().setNameFormat("ClusterEventReaderTask-%d")
            .build();/*from  w w w.  j a  v a  2s  .  c  om*/
    this.clusterMembershipReaderTaskScheduler = Executors.newSingleThreadScheduledExecutor(namedThreadFactory);
    addNewListenerTask(nodeId, dataSource);
}

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From source file:com.reactivetechnologies.blaze.throttle.DefaultConsumerThrottler.java

@PostConstruct
public void init() {
    if (enabled) {
        addCommand(new ThrottleCommand());
        List<? extends Command> customCommands = loadCommands();
        if (customCommands != null) {
            for (Command cmd : customCommands)
                addCommand(cmd);//from   w w w  . j  av  a  2s  .  com
        }

        counter = new AtomicInteger();
        timer = Executors.newSingleThreadScheduledExecutor(new ThreadFactory() {

            @Override
            public Thread newThread(Runnable arg0) {
                Thread t = new Thread(arg0, "Throttler-timer-thread");
                t.setDaemon(true);
                return t;
            }
        });
        timer.scheduleWithFixedDelay(new MessageThrottlerTask(), 0, throttlerPeriod, TimeUnit.MILLISECONDS);

        log.info("Throttling enabled with period of " + throttlerPeriod + " millis");
    }
}

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