Java Code Examples for java.util.Timer

@Override
public void start() {
    int bucketSize = checkBucketNum(properties.getBucketSize());
    if (isRuning.compareAndSet(false, true)) {
        for (int i = 1; i <= bucketSize; i++) {
            String     bName = NamedUtil.buildBucketName(properties.getPrefix(), properties.getName(), i);
            BucketTask task  = new BucketTask(bName);
            task.setJobOperationService(jobOperationService);
            task.setPoolName(NamedUtil.buildPoolName(properties.getPrefix(), properties.getName(), properties
                    .getOriginPool()));
            task.setReadyName(NamedUtil.buildPoolName(properties.getPrefix(), properties.getName(), properties
                    .getReadyName()));
            task.setProperties(properties);
            task.setLock(lock);
            String threadName = String.format(THREAD_NAME, i);
            Timer  timer      = new Timer(threadName, daemon);
            timer.schedule(task, 500, properties.getBuckRoundRobinTime());
            HOLD_TIMES.put(threadName, timer);
            LOGGER.info(String.format("Starting Bucket Thead %s ....", threadName));
        }

    }
}
 

void test(String[] args) throws Throwable {
    for (int how=0; how<4; how++) {
        final CountDownLatch done = new CountDownLatch(1);
        final AtomicInteger count = new AtomicInteger(0);
        final Timer timer = new Timer();
        final TimerTask task = new TimerTask() {
            @Override
            public void run() {
                checkScheduledExecutionTime(this);
                count.incrementAndGet();
                done.countDown();
            }};

        scheduleNow(timer, task, how);
        done.await();
        equal(count.get(), 1);
        checkScheduledExecutionTime(task);
        if (new java.util.Random().nextBoolean())
            sleep(10);
        check(task.cancel());
        timer.cancel();
        checkScheduledExecutionTime(task);
    }
}
 

void scheduleNow(Timer timer, TimerTask task, int how) {
    switch (how) {
        case 0 :
            timer.schedule(task, new Date(), Long.MAX_VALUE);
            break;
        case 1:
            timer.schedule(task, 0L, Long.MAX_VALUE);
            break;
        case 2:
            timer.scheduleAtFixedRate(task, new Date(), Long.MAX_VALUE);
            break;
        case 3:
            timer.scheduleAtFixedRate(task, 0L, Long.MAX_VALUE);
            break;
        default:
            fail(String.valueOf(how));
    }
}
 

public static void main(String []s)
{
    final Dialog fd = new Dialog(new Frame(), true);
    Timer t = new Timer();
    t.schedule(new TimerTask() {

        public void run() {
            System.out.println("RUNNING TASK");
            fd.setVisible(false);
            fd.dispose();
            System.out.println("FINISHING TASK");
        }
    }, 3000L);

    fd.setVisible(true);
    t.cancel();
    Util.waitForIdle(null);

    AbstractTest.pass();
}
 

public static void executeJobExecutorForTime(ProcessEngineConfiguration processEngineConfiguration, long maxMillisToWait, long intervalMillis) {
  AsyncExecutor asyncExecutor = processEngineConfiguration.getAsyncExecutor();
  asyncExecutor.start();

  try {
    Timer timer = new Timer();
    InteruptTask task = new InteruptTask(Thread.currentThread());
    timer.schedule(task, maxMillisToWait);
    try {
      while (!task.isTimeLimitExceeded()) {
        Thread.sleep(intervalMillis);
      }
    } catch (InterruptedException e) {
      // ignore
    } finally {
      timer.cancel();
    }

  } finally {
    asyncExecutor.shutdown();
  }
}
 

void scheduleNow(Timer timer, TimerTask task, int how) {
    switch (how) {
        case 0 :
            timer.schedule(task, new Date(), Long.MAX_VALUE);
            break;
        case 1:
            timer.schedule(task, 0L, Long.MAX_VALUE);
            break;
        case 2:
            timer.scheduleAtFixedRate(task, new Date(), Long.MAX_VALUE);
            break;
        case 3:
            timer.scheduleAtFixedRate(task, 0L, Long.MAX_VALUE);
            break;
        default:
            fail(String.valueOf(how));
    }
}
 

@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    storageTimer = new Timer();
    secondatyStorageTimer = new Timer();
    usbStorageTimer = new Timer();
    processTimer = new Timer();
    storageStats = (HomeItem) view.findViewById(R.id.storage_stats);
    secondayStorageStats = (HomeItem) view.findViewById(R.id.seconday_storage_stats);
    usbStorageStats = (HomeItem) view.findViewById(R.id.usb_storage_stats);
    memoryStats = (HomeItem) view.findViewById(R.id.memory_stats);
    recents = (TextView)view.findViewById(R.id.recents);
    recents_container = view.findViewById(R.id.recents_container);

    mShortcutsRecycler = (RecyclerView) view.findViewById(R.id.shortcuts_recycler);
    mRecentsRecycler = (RecyclerView) view.findViewById(R.id.recents_recycler);

    roots = DocumentsApplication.getRootsCache(getActivity());
    mHomeRoot = roots.getHomeRoot();
    showRecents();
    showData();
}
 

public static void main(String []s)
{
    final Dialog fd = new Dialog(new Frame(), true);
    Timer t = new Timer();
    t.schedule(new TimerTask() {

        public void run() {
            System.out.println("RUNNING TASK");
            fd.setVisible(false);
            fd.dispose();
            System.out.println("FINISHING TASK");
        }
    }, 3000L);

    fd.setVisible(true);
    t.cancel();
    Util.waitForIdle(null);

    AbstractTest.pass();
}
 

@Test
public void testMem() throws InterruptedException
{
	Timer timer = new Timer();
	
	MEMTimerTask task = new MEMTimerTask(
		new DataRefreshListener<Long[]>(){

			@Override
			public void onRefresh(long time, Long[] data) {
				System.out.println(data[0] + "/" + data[1] + "/" + data[2]+ "/" + data[3]);
			}});

	timer.schedule(task, 0, 1000);
	Thread.sleep(10000);
}
 

public static void main(String []s)
{
    final Dialog fd = new Dialog(new Frame(), true);
    Timer t = new Timer();
    t.schedule(new TimerTask() {

        public void run() {
            System.out.println("RUNNING TASK");
            fd.setVisible(false);
            fd.dispose();
            System.out.println("FINISHING TASK");
        }
    }, 3000L);

    fd.setVisible(true);
    t.cancel();
    Util.waitForIdle(null);

    AbstractTest.pass();
}
 

public void toFront() {
    try {
        timer = new Timer();
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                Platform.runLater(() -> {
                    getMyStage().toFront();
                    if (topCheck != null) {
                        topCheck.setSelected(AppVariables.getUserConfigBoolean(baseName + "Top", true));
                        if (topCheck.isVisible()) {
                            getMyStage().setAlwaysOnTop(topCheck.isSelected());
                        }
                    }
                    timer = null;
                });
            }
        }, 1000);
    } catch (Exception e) {
        logger.error(e.toString());
    }
}
 

@Override
public void startCountDown() {
    countDownTimer = new Timer();
    countDownTimer.schedule(new TimerTask() {
        private int i = 0;

        @Override
        public void run() {
            if (++i > 10) {
                stopCountDown();
                mHandler.sendEmptyMessage(NaviSetLineActivity.MSG_START_NAV);
            } else {
                Message msg = new Message();
                msg.what = NaviSetLineActivity.MSG_UPDATE_COUNTDOWN;
                msg.arg1 = 10 - i;
                mHandler.sendMessage(msg);
            }
        }
    }, 1000, 1000);
}
 

public void doInit() throws ServletException {
    synchronized(s_initialized) {
        if ( !s_initialized ) {
            super.doInit();
            
            // Initialize the core service
            initCoreService();
            
            // Initialize the data service
            initDataService();
            
            // Initialize resources from other plugins
            initDynamicResources();
            
            // Schedule the timer task to run every 30 seconds
            IStatisticsProvider provider = ProviderFactory.getStatisticsProvider();
            if ( provider != null ) {
                s_statsTimer = new Timer(true);
                s_statsTimer.schedule(s_statsTimerTask, STATS_TIMER_INTERVAL, STATS_TIMER_INTERVAL);
            }
            
            s_initialized = true;
            DAS_LOGGER.getLogger().fine("DasServlet initialized."); // $NON-NLS-1$
        }
    }
}
 

CaptureReadHandler(String identifier, CaptureReadCompletionHandler result, int timeout, @Nullable CaptureReadCompletionHandler.TimeoutAction timeoutAction, boolean isNotifyOmitted) {
    mIdentifier = identifier;
    mResult = result;
    mIsNotifyOmitted = isNotifyOmitted;

    // Setup timeout if not zero
    if (timeout > 0 && timeoutAction != null) {
        mTimeoutAction = timeoutAction;

        mTimeoutTimer = new Timer();
        if (kProfileTimeouts) {
            mTimeoutStartingMillis = System.currentTimeMillis();
            Log.d(TAG, "Start timeout:  " + identifier + ". millis:" + mTimeoutStartingMillis);
        }
        mTimeoutTimer.schedule(new TimerTask() {
            @Override
            public void run() {
                if (kProfileTimeouts) {
                    Log.d(TAG, "Fire timeout:   " + identifier + ". elapsed millis:" + (System.currentTimeMillis() - mTimeoutStartingMillis));
                }
                mResult.read(kPeripheralReadTimeoutError, null);
                mTimeoutAction.execute(identifier);
            }
        }, timeout);
    }
}
 

public static void main(String []s)
{
    final Dialog fd = new Dialog(new Frame(), true);
    Timer t = new Timer();
    t.schedule(new TimerTask() {

        public void run() {
            System.out.println("RUNNING TASK");
            fd.setVisible(false);
            fd.dispose();
            System.out.println("FINISHING TASK");
        }
    }, 3000L);

    fd.setVisible(true);
    t.cancel();
    Util.waitForIdle(null);

    AbstractTest.pass();
}
 

private void sendContinuous(final String deviceId, final String datastream, final float minValue, final float maxValue, int period) {
    TimerTask task = new TimerTask() {
        @Override
        public void run() {
            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    sendOnce(deviceId, datastream, minValue, maxValue);
                }
            });
        }
    };
    mSendDataTimer = new Timer(true);
    mSendDataTimer.schedule(task, 0, period * 1000);
    mSendContinuousButton.setText(R.string.stop_sending);
    mDeviceIdLayout.setEnabled(false);
    mDataStreamLayout.setEnabled(false);
    mMinValueLayout.setEnabled(false);
    mMaxValueLayout.setEnabled(false);
    mPeriodLayout.setEnabled(false);
    mSendOneceButton.setEnabled(false);
    mSending = true;
}
 

/**
 * 发送验证码
 * 
 * @param phone
 *            the phone
 */
private void sendVerifyCode(final String phone) {
	String CaptchaCode = etInputCaptchaCode_farget.getText().toString();
	dialog.show();
	btnReGetCode.setEnabled(false);
	btnReGetCode.setBackgroundResource(R.drawable.button_gray_short);
	secondleft = 60;
	timer = new Timer();
	timer.schedule(new TimerTask() {

		@Override
		public void run() {
			// 倒计时通知
			handler.sendEmptyMessage(handler_key.TICK_TIME.ordinal());
		}
	}, 1000, 1000);
	// 发送请求验证码指令
	// mCenter.cRequestSendVerifyCode(phone);
	// 发送请求验证码指令
	Log.i("AppTest", tokenString + ", " + captchaidString + ", " + CaptchaCode + ", " + phone);
	mCenter.cRequestSendVerifyCode(tokenString, captchaidString, CaptchaCode, phone);
}
 

public static void main(String []s)
{
    final Dialog fd = new Dialog(new Frame(), true);
    Timer t = new Timer();
    t.schedule(new TimerTask() {

        public void run() {
            System.out.println("RUNNING TASK");
            fd.setVisible(false);
            fd.dispose();
            System.out.println("FINISHING TASK");
        }
    }, 3000L);

    fd.setVisible(true);
    t.cancel();
    Util.waitForIdle(null);

    AbstractTest.pass();
}
 

public void createPeerConnectionFactory(final Context context,
    final PeerConnectionParameters peerConnectionParameters, final PeerConnectionEvents events) {
  this.peerConnectionParameters = peerConnectionParameters;
  this.events = events;
  // Reset variables to initial states.
  this.context = null;
  factory = null;
  videoCapturerStopped = false;
  isError = false;
  mediaStream = null;
  videoCapturer = null;
  renderVideo = true;
  localVideoTrack = null;
  remoteVideoTrack = null;
  localVideoSender = null;
  enableAudio = true;
  localAudioTrack = null;
  statsTimer = new Timer();

  executor.execute(new Runnable() {
    @Override
    public void run() {
      createPeerConnectionFactoryInternal(context);
    }
  });
}
 

private void startSubmitting() {
    // We use a timer cause want to be independent from the server tps
    final Timer timer = new Timer(true);
    timer.scheduleAtFixedRate(new TimerTask() {
        @Override
        public void run() {
            // Plugin was disabled, e.g. because of a reload (is this even possible in Sponge?)
            if (!Sponge.getPluginManager().isLoaded(plugin.plugin.getId())) {
                timer.cancel();
                return;
            }
            // The data collection (e.g. for custom graphs) is done sync
            // Don't be afraid! The connection to the bStats server is still async, only the stats collection is sync ;)
            Scheduler scheduler = Sponge.getScheduler();
            Task.Builder taskBuilder = scheduler.createTaskBuilder();
            taskBuilder.execute(() -> submitData()).submit(plugin);
        }
    }, 1000*60*5, 1000*60*30);
    // Submit the data every 30 minutes, first time after 5 minutes to give other plugins enough time to start
    // WARNING: Changing the frequency has no effect but your plugin WILL be blocked/deleted!
    // WARNING: Just don't do it!
}
 

@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

	final AsyncContext asyncContext = req.startAsync();

	// DON'T TRY THIS AT HOME: Working with threads in a Container !!
	new Timer().schedule(new TimerTask() {
		@Override
		public void run() {
			try {
				asyncContext.getResponse().getWriter().println(new Date() + ": Asynchronous Response");
				System.out.println("Release pending HTTP connection");
				asyncContext.complete();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}, 10 * 1000);
	resp.getWriter().println(new Date() + ": Async Servlet returns leaving the connection open");
}
 

@Override
public void onCreate() {
    super.onCreate();
    LogUtil.i(TAG, "chatMainService onCreate");
    context = TokApplication.getInstance();
    keepRunning = true;
    Runnable start = new Runnable() {
        @Override
        public void run() {
            ToxManager.getManager().initTox(TokApplication.getInstance());
            final ToxCallbackListener toxCallbackListener = new ToxCallbackListener(context);
            timer = new Timer(true);
            isRunning = true;
            try {
                task = new TimerTask() {
                    public void run() {
                        if (keepRunning) {
                            if (NetUtils.isNetworkAvailable()) {
                                if (keepRunning) {
                                    LogUtil.i(TAG,
                                        "coreManager:" + ToxManager.getManager().hashCode());
                                    ToxManager.getManager().iterate(toxCallbackListener);
                                }
                            }
                        } else {
                            stopTimer();
                        }
                    }
                };
            } catch (Exception e) {
                e.printStackTrace();
            }

            timer.scheduleAtFixedRate(task, 200, 200);
        }
    };

    serviceThread = new Thread(start);
    serviceThread.start();
}
 

/**
 * @throws Exception If failed.
 */
@Test
public void testSemaphoreNonFailoverSafe() throws Exception {
    try (IgniteSemaphore sem = grid(0).semaphore(STRUCTURE_NAME, 20, false, true)) {
        Ignite g = startGrid(NEW_IGNITE_INSTANCE_NAME);

        IgniteSemaphore sem2 = g.semaphore(STRUCTURE_NAME, 20, false, false);

        sem2.acquire(20);

        assertEquals(0, sem.availablePermits());

        new Timer().schedule(new TimerTask() {
            @Override public void run() {
                stopGrid(NEW_IGNITE_INSTANCE_NAME);
            }
        }, 2000);

        try {
            sem.acquire(1);
        }
        catch (IgniteInterruptedException ignored) {
            // Expected exception.
            return;
        }
    }

    fail("Thread hasn't been interrupted");
}
 

synchronized void start() {
  if (started) {
    return;
  }
  Timer timer = new Timer("Timer thread for monitoring ", true);
  TimerTask task = new TimerTask() {
    public void run() {
      update();
    }
  };
  long millis = period * 1000;
  timer.scheduleAtFixedRate(task, millis, millis);
  started = true;
}
 

/**
 * Stops all delayed events.
 */
public void stop() {
    for (Timer timer : delayedEvents.values()) {
        timer.cancel();
    }
    delayedEvents.clear();
}
 

@Override
public void init( ServletConfig config ) throws ServletException
{
    super.init( config );

    statistics = new Statistics();

    matchSchemeOnRedirect = Boolean.valueOf( System
        .getProperty( Constants.PROPERTY_PREFIX + MATCH_SCHEME_ON_REDIRECT,
            matchSchemeOnRedirect.toString() ) );

    try
    {
        LoadConfigTask loadConfigTask = new LoadConfigTask();
        loadConfigTask.loadData();

        if ( config != null )
        {
            timer = new Timer();
            timer.schedule( loadConfigTask, CHECK_CONFIG_FILES, CHECK_CONFIG_FILES );
        }
    }
    catch ( Exception e )
    {
        throw new ServletException( e );
    }
}
 

/**
 * Constructs this object.
 *
 * @param config the {@code Config} instance	
 * @param inst the {@code Instrumentation} instance.
 * @param activity the start {@code Activity}
 * @param sleeper the {@code Sleeper} instance
 */

public ActivityUtils(Config config, Instrumentation inst, Activity activity, Sleeper sleeper) {
	this.config = config;
	this.inst = inst;
	this.activity = activity;
	this.sleeper = sleeper;
	createStackAndPushStartActivity();
	activitySyncTimer = new Timer();
	activitiesStoredInActivityStack = new Stack<String>();
	setupActivityMonitor();
	setupActivityStackListener();
}
 

/**
 * Tests that {@link LocalInputChannel#retriggerSubpartitionRequest(Timer, int)} would throw
 * {@link PartitionNotFoundException} which is set onto the input channel then.
 */
@Test
public void testChannelErrorWhileRetriggeringRequest() {
	final SingleInputGate inputGate = createSingleInputGate(1);
	final LocalInputChannel localChannel = createLocalInputChannel(inputGate, new ResultPartitionManager());

	final Timer timer = new Timer(true) {
		@Override
		public void schedule(TimerTask task, long delay) {
			task.run();

			try {
				localChannel.checkError();

				fail("Should throw a PartitionNotFoundException.");
			} catch (PartitionNotFoundException notFound) {
				assertThat(localChannel.partitionId, Matchers.is(notFound.getPartitionId()));
			} catch (IOException ex) {
				fail("Should throw a PartitionNotFoundException.");
			}
		}
	};

	try {
		localChannel.retriggerSubpartitionRequest(timer, 0);
	} finally {
		timer.cancel();
	}
}
 

private void mountMain() {
    if (mainFile.exists()) {
        AliteLog.d(TAG, "Mounting main file...");
        AliteLog.d(TAG, "Scheduling mount checker...");
        // I have left the mount checker in place but extended it's initial activation to
        // 8 seconds.  If it is clear that this modification is working the mountchecker 
        // can be removed altogether
        (new Timer()).schedule(mainChecker, 8000);
        sm.mountObb(mainFile.getAbsolutePath(), null, mainObbStateChangeListener );
    } else {
        AliteLog.d(TAG, "Patch file not found");
    }
}
 

private void close() {
    TimerTask shutdownTask = new TimerTask() {
        @Override
        public void run() {
            ((AbstractApplicationContext) applicationContext).close();
        }
    };
    Timer shutdownTimer = new Timer();
    shutdownTimer.schedule(shutdownTask, TimeUnit.SECONDS.toMillis(20));
}