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() 

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.hedwig.server.netty.TestPubSubServer.java

@Test(timeout = 60000)
public void testUncaughtExceptionInZKThread() throws Exception {

    SynchronousQueue<Throwable> queue = new SynchronousQueue<Throwable>();
    RecordingUncaughtExceptionHandler uncaughtExceptionHandler = new RecordingUncaughtExceptionHandler(queue);
    final int port = PortManager.nextFreePort();
    final String hostPort = "127.0.0.1:" + PortManager.nextFreePort();

    PubSubServer server = startServer(uncaughtExceptionHandler, port, new TopicManagerInstantiator() {

        @Override/*w w w . j a v a2 s  . c o  m*/
        public TopicManager instantiateTopicManager() throws IOException {
            return new AbstractTopicManager(new ServerConfiguration(),
                    Executors.newSingleThreadScheduledExecutor()) {

                @Override
                protected void realGetOwner(ByteString topic, boolean shouldClaim,
                        Callback<HedwigSocketAddress> cb, Object ctx) {
                    ZooKeeper zookeeper;
                    try {
                        zookeeper = new ZooKeeper(hostPort, 60000, new Watcher() {
                            @Override
                            public void process(WatchedEvent event) {
                                // TODO Auto-generated method stub

                            }
                        });
                    } catch (IOException e) {
                        throw new RuntimeException(e);
                    }

                    zookeeper.getData("/fake", false, new SafeAsyncZKCallback.DataCallback() {
                        @Override
                        public void safeProcessResult(int rc, String path, Object ctx, byte[] data,
                                org.apache.zookeeper.data.Stat stat) {
                            throw new RuntimeException("This should go to the uncaught exception handler");
                        }

                    }, null);
                }

                @Override
                protected void postReleaseCleanup(ByteString topic, Callback<Void> cb, Object ctx) {
                }
            };
        }
    });

    runPublishRequest(port);
    assertEquals(RuntimeException.class, queue.take().getClass());
    server.shutdown();
}

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From source file:org.exoplatform.platform.common.software.register.UnlockService.java

public void start() {
    if (!new File(Utils.HOME_CONFIG_FILE_LOCATION).exists()) {
        if (checkLicenceInJcr())
            return;
        String rdate = UnlockService.computeRemindDateFromTodayBase64();
        productCode = generateProductCode();
        Utils.writeToFile(Utils.PRODUCT_KEY, "", Utils.HOME_CONFIG_FILE_LOCATION);
        Utils.writeToFile(Utils.PRODUCT_CODE, productCode, Utils.HOME_CONFIG_FILE_LOCATION);
        Utils.writeToFile(Utils.REMIND_DATE, rdate, Utils.HOME_CONFIG_FILE_LOCATION);
    }//from   ww  w.j  a  v  a 2  s .  c  o m
    productCode = Utils.readFromFile(Utils.PRODUCT_CODE, Utils.HOME_CONFIG_FILE_LOCATION);
    String unlockKey = Utils.readFromFile(Utils.PRODUCT_KEY, Utils.HOME_CONFIG_FILE_LOCATION);
    if ((unlockKey != null) && (!unlockKey.equals(""))) {
        int period = decodeKey(productCode, unlockKey);
        if (period == -1) {
            try {
                PingBackServlet.writePingBackFormDisplayed(true);
            } catch (MissingProductInformationException e) {
                LOG.error("Product Information not found ", e.getLocalizedMessage());

            }
            outdated = false;
            isUnlocked = true;
            showTermsandConditions = false;
            return;
        }
    }
    if (checkLicenceInJcr())
        return;

    //Read if extended
    String isExtendedString = Utils.readFromFile(Utils.IS_EXTENDED, Utils.HOME_CONFIG_FILE_LOCATION);
    if (isExtendedString != null && !isExtendedString.isEmpty()) {
        isExtendedString = new String(Base64.decodeBase64(isExtendedString.getBytes()));
        isUnlocked = Boolean.parseBoolean(isExtendedString);
    }
    // Read: Remind date
    String remindDateString = Utils.readFromFile(Utils.REMIND_DATE, Utils.HOME_CONFIG_FILE_LOCATION);
    try {
        remindDate = Utils.parseDateBase64(remindDateString);
    } catch (Exception e) {
        //Added to not have NPE if user played with licence.xml given by sales
        //or user play with remindDate param in licence.xml
        remindDate = Calendar.getInstance();
        remindDate.set(Calendar.HOUR, 23);
        remindDate.set(Calendar.MINUTE, 59);
        remindDate.set(Calendar.SECOND, 59);
        remindDate.set(Calendar.MILLISECOND, 59);
        ERROR = "your license file is incorrect, please contact our support to fix the problem";
    }

    computeUnlockedInformation();
    // Compute delay period every day
    executor = Executors.newSingleThreadScheduledExecutor();
    executor.scheduleWithFixedDelay(new Runnable() {
        public void run() {
            computeUnlockedInformation();
            if (outdated && isUnlocked) {
                isUnlocked = false;
                Utils.writeToFile(Utils.IS_EXTENDED, new String(Base64.encodeBase64("false".getBytes())),
                        Utils.HOME_CONFIG_FILE_LOCATION);
            }
        }
    }, 1, 1, TimeUnit.MINUTES);
}

---

From source file:edu.usf.cutr.gtfs_realtime.bullrunner.GtfsRealtimeProviderImpl.java

@PostConstruct
public void start() {

    routeVehicleStartTimeMap = new BiHashMap<String, String, StartTimes>();

    try {//  ww  w  . j a  v  a2s  . co m
        //_providerConfig .setUrl(new URL( "http://usfbullrunner.com/region/0/routes"));
        _providerConfig.generatesRouteMap(new URL("http://usfbullrunner.com/region/0/routes"));
        _providerConfig.generateTripMap();
        _providerConfig.generateServiceMap();
        _providerConfig.extractSeqId();
        _providerConfig.extractStartTime();

    } catch (Exception ex) {
        _log.warn("Error in retriving confirmation data!", ex);
    }
    _log.info("starting GTFS-realtime service");
    _executor = Executors.newSingleThreadScheduledExecutor();
    _executor.scheduleAtFixedRate(new VehiclesRefreshTask(), 0, _refreshInterval, TimeUnit.SECONDS);
}

---

From source file:com.taobao.common.store.journal.JournalStore.java

/**
 * /*from  w  ww. j  ava  2  s.  c o m*/
 * 
 * @param path
 * @param name
 * @param force
 * @throws IOException
 */
public JournalStore(final String path, final String name, final IndexMap indices, final boolean force,
        final boolean enableIndexLRU, final boolean enabledDataFileCheck) throws IOException {
    Util.registMBean(this, name);
    this.path = path;
    this.name = name;
    this.force = force;
    if (indices == null) {
        if (enableIndexLRU) {
            final long maxMemory = Runtime.getRuntime().maxMemory();
            // 1/40
            final int capacity = (int) (maxMemory / 40 / 60);
            this.indices = new LRUIndexMap(capacity, this.getPath() + File.separator + name + "_indexCache",
                    enableIndexLRU);
        } else {
            this.indices = new ConcurrentIndexMap();
        }
    } else {
        this.indices = indices;
    }
    this.dataFileAppender = new DataFileAppender(this);

    this.initLoad();
    // 
    if (null == this.dataFile || null == this.logFile) {
        this.newDataFile();
    }

    // Store4j.
    if (enabledDataFileCheck) {
        this.scheduledPool = Executors.newSingleThreadScheduledExecutor();
        this.scheduledPool.scheduleAtFixedRate(new DataFileCheckThread(), this.calcDelay(), HALF_DAY,
                TimeUnit.MILLISECONDS);
        log.warn("");
    }

    // ,,.
    Runtime.getRuntime().addShutdownHook(new Thread() {
        @Override
        public void run() {
            try {
                JournalStore.this.close();
            } catch (final IOException e) {
                log.error("close error", e);
            }
        }
    });
}

---

From source file:org.apache.hadoop.hdfs.server.datanode.OfferService.java

public void run() {
    if (!shouldRun())
        return;/*ww w .  ja  v  a 2  s .co m*/
    KeepAliveHeartbeater keepAliveTask = new KeepAliveHeartbeater(namenode, nsRegistration, this.servicePair);
    keepAliveSender = Executors.newSingleThreadScheduledExecutor();
    keepAliveRun = keepAliveSender.scheduleAtFixedRate(keepAliveTask, 0, anode.heartBeatInterval,
            TimeUnit.MILLISECONDS);
    while (shouldRun()) {
        try {
            if (isPrimaryService()) {
                servicePair.setPrimaryOfferService(this);
            }
            offerService();
        } catch (Exception e) {
            LOG.error("OfferService encountered exception", e);
        }
    }
    stop();
}

---

From source file:app.screen.MyActivity.java

/** create a repeating executor that displays debug messages after interacting with service */
private void _scheduleRepeatingTask() {
    ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
    executor.scheduleAtFixedRate(new Runnable() {
        public void run() {
            try {
                StringBuilder sb = new StringBuilder();
                sb.append("ScheduledExecutorRunning - ").append(new Date().toString());
                AndroidUtils.log(IconPaths.MyApp, sb.toString());
            } catch (Exception e) {
            }/*  www .  j av  a 2  s . c  om*/
        }
    }, 0, MyActivityRepeatDelay_ms, TimeUnit.MILLISECONDS);
    lifecycleHelper.addResource(executor);
}

---

From source file:com.scooter1556.sms.android.fragment.AudioPlayerFragment.java

@Override
public void onResume() {
    super.onResume();

    // Player control update thread
    executorService = Executors.newSingleThreadScheduledExecutor();

    final Handler handler = new Handler();
    Runnable runnable = new Runnable() {
        @Override/*from w  ww  .j  a  v  a2  s. co  m*/
        public void run() {
            handler.post(new Runnable() {
                @Override
                public void run() {
                    updateProgressBar();
                }
            });
        }
    };
    executorService.scheduleWithFixedDelay(runnable, 0L, 1000L, TimeUnit.MILLISECONDS);

    // Update player controls
    updatePlayerControls();

    // Set current media info
    updateMediaInfo();
}

---

From source file:com.app.server.util.FarmWarFileTransfer.java

public void start() {
    try {/* ww w.  j  av  a  2s  . com*/
        channel = new JChannel();
        channel.setReceiver(this);
        /*ProtocolStack stack=new ProtocolStack(); // 2
        channel.setProtocolStack(stack);
        stack.addProtocol(new UDP().setValue("bind_addr", InetAddress.getByName("0.0.0.0")));
        //stack.addProtocol(new NAKACK());
        stack.init();*/
        channel.connect(serverConfig.getClustergroup());
        address = channel.getAddress().toString();
        channel.getState(null, 10000);
        // channel.close();
    } catch (Exception ex) {
        log.info("Could not able to create jgroups Channel for the cluster group "
                + serverConfig.getClustergroup(), ex);
    }
    exec = Executors.newSingleThreadScheduledExecutor();
    FarmWarDirWatcher task = new FarmWarDirWatcher(serverConfig.getFarmWarDir(), this);
    exec.scheduleAtFixedRate(task, 0, 1000, TimeUnit.MILLISECONDS);
    serviceList.add(objName.getCanonicalName());
}

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From source file:at.wada811.android.library.demos.concurrent.ExecutorActivity.java

/**
 * {@link ScheduledExecutorService#schedule(Runnable, long, TimeUnit)} ?????
 * /*w ww  .ja v a2 s .  c o m*/
 * <p>
 * ???????????
 * </p>
 */
public void newSingleThreadScheduledExecutorTest() {
    LogUtils.d();
    ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor();
    executorService.schedule(new ExecutorRunnable("A", 1), 8, TimeUnit.SECONDS);
    executorService.schedule(new ExecutorRunnable("B", 1), 4, TimeUnit.SECONDS);
    executorService.schedule(new ExecutorRunnable("C", 1), 0, TimeUnit.SECONDS);
    executorService.schedule(new ExecutorRunnable("D", 1), 12, TimeUnit.SECONDS);
}

---

From source file:org.jsecurity.realm.text.PropertiesRealm.java

protected void startReloadThread() {
    if (this.reloadIntervalSeconds > 0) {
        this.scheduler = Executors.newSingleThreadScheduledExecutor();
        ((ScheduledExecutorService) this.scheduler).scheduleAtFixedRate(this, reloadIntervalSeconds,
                reloadIntervalSeconds, TimeUnit.SECONDS);
    }//w  ww. j  av  a  2 s .  c o m
}

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