Example usage for java.util.concurrent Executors newScheduledThreadPool

List of usage examples for java.util.concurrent Executors newScheduledThreadPool

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Introduction

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

Prototype

public static ScheduledExecutorService newScheduledThreadPool(int corePoolSize, ThreadFactory threadFactory)

Source Link

Document

Creates a thread pool that can schedule commands to run after a given delay, or to execute periodically.

Usage

From source file:io.gravitee.gateway.services.apikeyscache.ApiKeysCacheService.java

@Override
protected void doStart() throws Exception {
    if (enabled) {
        super.doStart();

        LOGGER.info("Overriding API key repository implementation with cached API Key repository");
        DefaultListableBeanFactory beanFactory = (DefaultListableBeanFactory) ((ConfigurableApplicationContext) applicationContext
                .getParent()).getBeanFactory();

        this.apiKeyRepository = beanFactory.getBean(ApiKeyRepository.class);
        LOGGER.debug("Current API key repository implementation is {}", apiKeyRepository.getClass().getName());

        String[] beanNames = beanFactory.getBeanNamesForType(ApiKeyRepository.class);
        String oldBeanName = beanNames[0];

        beanFactory.destroySingleton(oldBeanName);

        LOGGER.debug("Register API key repository implementation {}", ApiKeyRepositoryWrapper.class.getName());
        beanFactory.registerSingleton(ApiKeyRepository.class.getName(),
                new ApiKeyRepositoryWrapper(this.apiKeyRepository, cache));

        eventManager.subscribeForEvents(this, ReactorEvent.class);

        executorService = Executors.newScheduledThreadPool(threads, new ThreadFactory() {
            private int counter = 0;
            private String prefix = "apikeys-refresher";

            @Override/*from  w  w  w .j a v  a2s . co m*/
            public Thread newThread(Runnable r) {
                return new Thread(r, prefix + '-' + counter++);
            }
        });
    }
}

From source file:com.twitter.hbc.ClientBuilder.java

public ClientBuilder() {
    enableGZip = true;//from w  w  w .  j  a va  2  s .c o  m
    name = "hosebird-client-" + clientNum.getAndIncrement();
    ThreadFactory threadFactory = new ThreadFactoryBuilder().setDaemon(true)
            .setNameFormat("hosebird-client-io-thread-%d").build();
    executorService = Executors.newSingleThreadExecutor(threadFactory);

    ThreadFactory rateTrackerThreadFactory = new ThreadFactoryBuilder().setDaemon(true)
            .setNameFormat("hosebird-client-rateTracker-thread-%d").build();

    ScheduledExecutorService scheduledExecutor = Executors.newScheduledThreadPool(1, rateTrackerThreadFactory);
    rateTracker = new BasicRateTracker(30000, 100, true, scheduledExecutor);
    reconnectionManager = new BasicReconnectionManager(5);

    socketTimeoutMillis = 60000;
    connectionTimeoutMillis = 4000;

    schemeRegistry = SchemeRegistryFactory.createDefault();
}

From source file:org.hyperic.hq.measurement.agent.server.TopNScheduler.java

private void createSender() {
    sender = Executors.newScheduledThreadPool(1, new ThreadFactory() {
        private final AtomicLong i = new AtomicLong(0);

        public Thread newThread(Runnable r) {
            return new Thread(r, "TopNSender" + i.getAndIncrement());
        }//  w  w  w  . j a  v a  2s  .  c  o  m
    });

    sender.scheduleAtFixedRate(new Runnable() {
        public void run() {
            boolean success;
            List<TopReport> reports = new ArrayList<TopReport>();
            for (TopReport report : storage.<TopReport>getObjectsFromFolder(DATA_FOLDERNAME, MAX_BATCHSIZE)) {
                reports.add(report);

            }
            // If we don't have anything to send -- move along
            if (reports.isEmpty()) {
                log.debug("No TopN records were found in the storage");
                return;
            }
            log.debug("Sending " + reports.size() + " TopN entries " + "to server");
            success = false;
            try {
                TopNSendReport_args report = new TopNSendReport_args();
                if (agentToken == null) {
                    agentToken = storage.getValue(CommandsAPIInfo.PROP_AGENT_TOKEN);
                }
                report.setAgentToken(agentToken);
                report.setTopReports(reports);
                client.topNSendReport(report);
                success = true;
            } catch (AgentCallbackClientException exc) {
                log.error("Error sending TOPN data to server: " + exc.getMessage());
            }

            // delete the records we sent from the storage
            if (success) {
                List<String> filesToDelete = new ArrayList<String>();
                for (TopReport report : reports) {
                    filesToDelete.add(String.valueOf(report.getCreateTime()));
                }
                storage.deleteObjectsFromFolder(DATA_FOLDERNAME,
                        filesToDelete.toArray(new String[filesToDelete.size()]));
            }
        }
        // TimeUnit.MINUTE does not work on java5
    }, SEND_INTERVAL * 60, SEND_INTERVAL * 60, TimeUnit.SECONDS);

}

From source file:org.apache.stratos.throttling.agent.ThrottlingAgent.java

public ThrottlingAgent(BundleContext bundleContext) throws Exception {
    this.scheduler = Executors.newScheduledThreadPool(1, new ThrottlingAgentThreadFactory());
    this.throttlingInfoCache = new ThrottlingInfoCache();
    this.bundleContext = bundleContext;
}

From source file:com.openteach.diamond.network.waverider.slave.DefaultSlaveNode.java

@Override
public boolean init() {
    commandDispatcher.addCommandHandler(0L, new SlaveHeartbeatCommandHandler(this));
    netWorkClient = new DefaultNetWorkClient(config.getMasterAddress(), config.getPort());
    if (!netWorkClient.init()) {
        return false;
    }/*  w  w w  .  j  a v  a2 s  . co  m*/
    masterFailureMonitor = new DefaultMasterFailureMonitor(new DefaultMasterFailureHandler(this),
            MasterFailureMonitor.DEFAULT_FAILURE_MONITOR_INTERVAL,
            MasterFailureMonitor.DEFAULT_FAILURE_MONITOR_WAIT_MASTER_STATE_TIME_OUT);
    if (!masterFailureMonitor.init()) {
        return false;
    }
    commandDispatchThread = new Thread(new CommandDispatchTask(), SLAVE_COMMAND_DISPATCHE_THREAD_NAME);
    commandDispatchThread.setDaemon(true);
    // heart beat
    heartbeatScheduler = Executors.newScheduledThreadPool(1,
            new WaveriderThreadFactory(SLAVE_HEART_BEAT_THREAD_NAME_PREFIX, null, true));
    return true;
}

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

public RDBMSCoordinationStrategy(DataSource datasource) {
    ThreadFactory namedThreadFactory = new ThreadFactoryBuilder().setNameFormat("RDBMSCoordinationStrategy-%d")
            .build();//from  www.j  a  va  2s . com
    this.threadExecutor = Executors.newScheduledThreadPool(
            CoordinationStrategyConfiguration.getInstance().getRdbmsConfigs().get("heartbeatInterval"),
            namedThreadFactory);
    this.heartBeatInterval = CoordinationStrategyConfiguration.getInstance().getRdbmsConfigs()
            .get(CoordinationPropertyNames.RDBMS_BASED_COORDINATION_HEARTBEAT_INTERVAL);
    // Maximum age of a heartbeat. After this much of time, the heartbeat is considered invalid and node is
    // considered to have left the cluster.
    this.heartbeatMaxAge = heartBeatInterval * 2;
    this.localNodeId = generateRandomId();
    this.rdbmsMemberEventProcessor = new RDBMSMemberEventProcessor(localNodeId, datasource);
    this.communicationBusContext = new RDBMSCommunicationBusContextImpl(datasource);
}

From source file:org.apache.flink.runtime.filecache.FileCache.java

public FileCache(String[] tempDirectories) throws IOException {

    Preconditions.checkNotNull(tempDirectories);

    storageDirectories = new File[tempDirectories.length];

    for (int i = 0; i < tempDirectories.length; i++) {
        String cacheDirName = "flink-dist-cache-" + UUID.randomUUID().toString();
        storageDirectories[i] = new File(tempDirectories[i], cacheDirName);
        String path = storageDirectories[i].getAbsolutePath();

        if (storageDirectories[i].mkdirs()) {
            LOG.info("User file cache uses directory " + path);
        } else {//from www .j  a va2  s  . c  om
            LOG.error("User file cache cannot create directory " + path);
            // delete all other directories we created so far
            for (int k = 0; k < i; k++) {
                if (!storageDirectories[k].delete()) {
                    LOG.warn("User file cache cannot remove prior directory "
                            + storageDirectories[k].getAbsolutePath());
                }
            }
            throw new IOException("File cache cannot create temp storage directory: " + path);
        }
    }

    this.shutdownHook = createShutdownHook(this, LOG);

    this.entries = new HashMap<JobID, Map<String, Tuple4<Integer, File, Path, Future<Path>>>>();
    this.executorService = Executors.newScheduledThreadPool(10, new ExecutorThreadFactory("flink-file-cache"));
}

From source file:org.apache.hadoop.yarn.server.resourcemanager.security.RMAppSecurityManager.java

@Override
protected void serviceInit(Configuration conf) throws Exception {
    LOG.debug("Initializing RMAppSecurityManager");
    this.conf = conf;
    this.handler = rmContext.getDispatcher().getEventHandler();
    rmAppCertificateActions = RMAppSecurityActionsFactory.getInstance().getActor(conf);
    isRPCTLSEnabled = conf.getBoolean(CommonConfigurationKeys.IPC_SERVER_SSL_ENABLED,
            CommonConfigurationKeys.IPC_SERVER_SSL_ENABLED_DEFAULT);

    renewalExecutorService = Executors.newScheduledThreadPool(RENEWAL_EXECUTOR_SERVICE_POOL_SIZE,
            new ThreadFactoryBuilder().setDaemon(true).setNameFormat("RMApp Security Material Renewer #%d")
                    .build());//from   ww w  .ja va  2  s  .c  o m
    for (RMAppSecurityHandler handler : securityHandlersMap.values()) {
        handler.init(conf);
    }

    super.serviceInit(conf);
}

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

FailureDetection(NodeIDType id, InterfaceNIOTransport<NodeIDType, JSONObject> niot, String paxosLogFolder) {
    nioTransport = niot;/*from  w w w.java  2s  .  c  o  m*/
    myID = id;
    this.execpool = Executors.newScheduledThreadPool(1, new ThreadFactory() {
        @Override
        public Thread newThread(Runnable r) {
            Thread thread = Executors.defaultThreadFactory().newThread(r);
            thread.setName(FailureDetection.class.getSimpleName() + myID);
            return thread;
        }
    });
    lastHeardFrom = new ConcurrentHashMap<NodeIDType, Long>();
    keepAliveTargets = new TreeSet<NodeIDType>();
    futures = new HashMap<NodeIDType, ScheduledFuture<PingTask>>();
    initialize(paxosLogFolder);
}

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

@Override
public void start() throws CoreException {
    executor = Executors.newScheduledThreadPool(1, new ManagedThreadFactory(getClass().getSimpleName()));
    sweeper = executor.scheduleWithFixedDelay(new CleanupTask(), 100L, retryIntervalMs(),
            TimeUnit.MILLISECONDS);
    failAll = false;/*  ww  w . j  ava 2  s  .c  om*/
    super.start();
}