Example usage for java.util.concurrent CountDownLatch await

Introduction

In this page you can find the example usage for java.util.concurrent CountDownLatch await.

Prototype

public void await() throws InterruptedException 

Source Link

Document

Causes the current thread to wait until the latch has counted down to zero, unless the thread is Thread#interrupt interrupted .

Usage

From source file:com.onyxscheduler.domain.SchedulerIT.java

private void waitJobWithPastDate() throws Scheduler.DuplicateJobKeyException, InterruptedException {
    CountDownLatch latch = new CountDownLatch(1);
    latchProvider.setLatch(latch);/*w  w w . j a v  a  2 s  .c o  m*/
    CountDownJob existingJob = buildJobWithFixedDateTrigger(buildPastDate());
    scheduler.scheduleJob(existingJob);
    latch.await();
}

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From source file:com.onyxscheduler.domain.SchedulerIT.java

@Test(timeout = FIRE_THRESHOLD_TIMEOUT_IN_MILLIS)
public void shouldFireJobOnceWithPastDate() throws Scheduler.DuplicateJobKeyException, InterruptedException {
    CountDownLatch latch = new CountDownLatch(1);
    latchProvider.setLatch(latch);//from w  w  w. java  2  s  .c  o m
    CountDownJob existingJob = buildJobWithFixedDateTrigger(buildPastDate());
    scheduler.scheduleJob(existingJob);
    latch.await();
}

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From source file:com.onyxscheduler.domain.SchedulerIT.java

@Test(timeout = FIRE_THRESHOLD_TIMEOUT_IN_MILLIS)
public void shouldFireJobOnceWithReachableFutureDate()
        throws Scheduler.DuplicateJobKeyException, InterruptedException {
    CountDownLatch latch = new CountDownLatch(1);
    latchProvider.setLatch(latch);//  w w  w .  j av  a  2 s.c o  m
    CountDownJob job = buildJobWithFixedDateTrigger(buildReachableFutureDate());

    scheduler.scheduleJob(job);

    latch.await();
}

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From source file:com.alibaba.druid.benckmark.pool.Case2.java

private void p0(final DataSource dataSource, String name, int threadCount) throws Exception {

    final CountDownLatch startLatch = new CountDownLatch(1);
    final CountDownLatch endLatch = new CountDownLatch(threadCount);
    final AtomicLong blockedStat = new AtomicLong();
    final AtomicLong waitedStat = new AtomicLong();

    for (int i = 0; i < threadCount; ++i) {
        Thread thread = new Thread() {

            public void run() {
                try {
                    startLatch.await();

                    long threadId = Thread.currentThread().getId();

                    long startBlockedCount, startWaitedCount;
                    {//from  w w  w  .  ja  v a 2s.co m
                        ThreadInfo threadInfo = ManagementFactory.getThreadMXBean().getThreadInfo(threadId);
                        startBlockedCount = threadInfo.getBlockedCount();
                        startWaitedCount = threadInfo.getWaitedCount();
                    }
                    for (int i = 0; i < LOOP_COUNT; ++i) {
                        Connection conn = dataSource.getConnection();
                        conn.close();
                    }

                    ThreadInfo threadInfo = ManagementFactory.getThreadMXBean().getThreadInfo(threadId);
                    long blockedCount = threadInfo.getBlockedCount() - startBlockedCount;
                    long waitedCount = threadInfo.getWaitedCount() - startWaitedCount;

                    blockedStat.addAndGet(blockedCount);
                    waitedStat.addAndGet(waitedCount);
                } catch (Exception ex) {
                    ex.printStackTrace();
                }
                endLatch.countDown();
            }
        };
        thread.start();
    }
    long startMillis = System.currentTimeMillis();
    long startYGC = TestUtil.getYoungGC();
    long startFullGC = TestUtil.getFullGC();
    startLatch.countDown();
    endLatch.await();

    long millis = System.currentTimeMillis() - startMillis;
    long ygc = TestUtil.getYoungGC() - startYGC;
    long fullGC = TestUtil.getFullGC() - startFullGC;

    System.out.println("thread " + threadCount + " " + name + " millis : "
            + NumberFormat.getInstance().format(millis) + ", YGC " + ygc + " FGC " + fullGC + " blockedCount "
            + blockedStat.get() + " waitedCount " + waitedStat.get());
}

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From source file:com.gopivotal.cla.github.RateLimitingClientHttpRequestInterceptorTest.java

@Test
public void block() throws InterruptedException, IOException {
    CountDownLatch latch = new CountDownLatch(1);

    MockClientHttpRequest request = new MockClientHttpRequest();
    MockClientHttpResponse response = new MockClientHttpResponse(new byte[0], HttpStatus.OK);
    ClientHttpRequestExecution execution = mock(ClientHttpRequestExecution.class);

    request.setMethod(HttpMethod.GET);/*ww  w  .java2 s.  c  o m*/
    request.setURI(URI.create("http://localhost"));

    when(execution.execute(request, new byte[0])).thenReturn(response);

    new Thread(new Trigger(this.interceptor, latch)).start();
    latch.await();

    this.interceptor.intercept(request, new byte[0], execution);
}

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From source file:com.googlecode.xmlzen.XmlSlicerTest.java

@Test
public void testXmlSlicerListConcurrency() throws Exception {
    final CountDownLatch latch = new CountDownLatch(SLICER_ITERATIONS);
    final XmlSlicerList xsl = new XmlSlicerList();
    xsl.add(XmlSlicer.cut("1"));
    xsl.add(XmlSlicer.cut("2"));
    xsl.add(XmlSlicer.cut("3"));
    for (int i = 0; i < SLICER_ITERATIONS; i++) {
        new Thread(new Runnable() {
            public void run() {
                assertEquals(Arrays.asList(new String[] { "1", "2", "3" }), xsl.asList());
                latch.countDown();/*  w w  w .j a v  a  2 s .c  o  m*/
            }
        }).start();
    }
    latch.await();
}

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From source file:com.basho.riak.client.http.util.logging.ConcurrentLoggingTest.java

/**
 * Test method for//ww w.  j  a  v a2s . c o m
 * {@link com.basho.riak.client.http.util.logging.LogNoHttpResponseRetryHandler#retryMethod(org.apache.commons.httpclient.HttpMethod, java.io.IOException, int)}
 * .
 * 
 * @throws InterruptedException
 */
@Test
public void retry_concurrentLogAndDump() throws InterruptedException {
    // create a bunch of threads
    // each must log 10 statements and call flush
    // ALL the statements must be present BUT ONCE in
    // the mock delegate appender (order does not matter)
    final int numThreads = 10;
    final LogNoHttpResponseRetryHandler handler = new LogNoHttpResponseRetryHandler();
    ExecutorService es = Executors.newFixedThreadPool(numThreads);
    List<Callable<Void>> tasks = new ArrayList<Callable<Void>>(numThreads);

    final CountDownLatch startLatch = new CountDownLatch(1);
    final CountDownLatch dumpLatch = new CountDownLatch(10);

    for (int i = 0; i < numThreads; i++) {
        final int threadCounter = i;
        tasks.add(new Callable<Void>() {

            @Override
            public Void call() {
                Logger logger = Logger.getLogger("httpclient.wire");
                try {
                    startLatch.await();

                    for (int j = 0; j < 10; j++) {
                        logger.debug(String.format(MESSAGE, new Object[] { threadCounter, j }));
                    }

                    dumpLatch.countDown();
                    dumpLatch.await();

                    handler.retryMethod(new GetMethod(), new NoHttpResponseException(), 0);

                    return null;
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                    throw new RuntimeException(e);
                }
            }
        });
    }

    startLatch.countDown();
    es.invokeAll(tasks);

    verify(mockLogger, times(100)).callAppenders(logEventCaptor.capture());

    TreeSet<Integer> check = new TreeSet<Integer>();

    for (LoggingEvent le : logEventCaptor.getAllValues()) {
        // verify that each of Thread:Iter is present for 0-90-9
        int loc = Integer.parseInt(le.getMessage().toString());
        check.add(loc);
    }

    assertEquals(100, check.size());
    assertEquals(0, (int) check.first());
    assertEquals(99, (int) check.last());
}

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From source file:com.netflix.curator.framework.recipes.queue.TestDistributedPriorityQueue.java

@Test
public void testSimple() throws Exception {
    List<Integer> nums = new ArrayList<Integer>();

    Timing timing = new Timing();
    DistributedPriorityQueue<Integer> queue = null;
    CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(),
            timing.connection(), new RetryOneTime(1));
    client.start();/*w w w .  j  av  a2  s . co  m*/
    try {
        final CountDownLatch hasConsumedLatch = new CountDownLatch(1);
        final CountDownLatch okToConsumeLatch = new CountDownLatch(1);
        BlockingQueueConsumer<Integer> consumer = new BlockingQueueConsumer<Integer>(
                Mockito.mock(ConnectionStateListener.class)) {
            @Override
            public void consumeMessage(Integer message) throws Exception {
                hasConsumedLatch.countDown();
                okToConsumeLatch.await();
                super.consumeMessage(message);
            }
        };
        queue = QueueBuilder.builder(client, consumer, new IntSerializer(), "/test").buildPriorityQueue(0);
        queue.start();

        nums.add(Integer.MIN_VALUE);
        queue.put(Integer.MIN_VALUE, Integer.MIN_VALUE); // the queue background thread will be blocking with the first item - make sure it's the lowest value
        Assert.assertTrue(timing.awaitLatch(hasConsumedLatch));

        Random random = new Random();
        for (int i = 0; i < 100; ++i) {
            int priority = random.nextInt();
            nums.add(priority);
            queue.put(priority, priority);
        }

        while (queue.getCache().getData().children.size() < (nums.size() - 1)) // -1 because the first message has already been consumed
        {
            timing.sleepABit(); // wait for the cache to catch up
        }
        okToConsumeLatch.countDown();

        assertOrdering(consumer, nums.size());
    } catch (AssertionError e) {
        StringBuilder message = new StringBuilder(e.getMessage());
        for (int i : nums) {
            message.append(i).append("\t").append(DistributedPriorityQueue.priorityToString(i)).append("\n");
        }
        Assert.fail(message.toString());
    } finally {
        IOUtils.closeQuietly(queue);
        IOUtils.closeQuietly(client);
    }
}

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From source file:de.hybris.platform.masterserver.impl.DefaultStatisticsGatewayTest.java

@Test
public void shouldUpdateLoggedInBackOfficeUsersConcurrently() throws InterruptedException {
    // given//ww  w  . j  ava  2 s.c  om
    generateStats = true;
    given(businessCollector.collectStatistics()).willReturn(null);
    given(systemCollector.collectStatistics()).willReturn(null);
    given(encryptor.encrypt(eq("{\"session\":{\"backOfficeOverallUsers\":{\"hac\":500}}}"), anyString()))
            .willReturn(statisticsPayload);
    final CountDownLatch latch = new CountDownLatch(500);

    // when
    for (int i = 0; i < 500; i++) {
        new Thread(new Runnable() {

            @Override
            public void run() {
                try {
                    statGateway.updateLoggedInUsersStats("/hac");
                } finally {
                    latch.countDown();
                }
            }
        }).start();
    }
    latch.await();
    final StatisticsPayload encodedStatistics = statGateway.getStatisticsPayload();

    // then
    assertThat(encodedStatistics).isNotNull();
}

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From source file:ca.cmput301w14t09.elasticSearch.ElasticSearchOperations.java

/**
 * postThread posts a top comment to Elastic-Search.
 * Tested and verified.//from   w  ww.j  a va2 s . com
 * @param ElasticSearchOperations
 * @throws InterruptedException 
 */
public static void postThread(final Comment commentThread) throws InterruptedException {
    final CountDownLatch latch = new CountDownLatch(1);

    if (GSON == null)
        constructGson();

    Thread thread = new Thread() {

        @Override
        public void run() {
            HttpClient client = new DefaultHttpClient();
            HttpPost request = new HttpPost(postAddress + commentThread.getUuid() + "/");

            try {
                request.setEntity(new StringEntity(GSON.toJson(commentThread)));

                HttpResponse response = client.execute(request);
                Log.w(serverName, response.getStatusLine().toString());

                response.getStatusLine().toString();
                HttpEntity entity = response.getEntity();

                BufferedReader reader = new BufferedReader(new InputStreamReader(entity.getContent()));
                String output = reader.readLine();
                while (output != null) {
                    Log.w(serverName, output);
                    output = reader.readLine();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            latch.countDown();
        }
    };
    thread.start();
    latch.await();
}

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