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:ufo.remote.calls.benchmark.client.caller.vertx.VertxClusterTester.java

@PostConstruct
public void init() throws InterruptedException {
    final CountDownLatch latch = new CountDownLatch(1);
    final VertxOptions options = new VertxOptions();
    final Config conf = new Config();
    Vertx.clusteredVertx(options.setClusterHost("localhost").setClusterPort(0).setClustered(true)
            .setClusterManager(new HazelcastClusterManager(conf)), ar -> {
                if (ar.failed()) {
                    logger.error("Error starting Vertx cluster", ar.cause());
                }/*from   w  ww  . j  av  a 2 s.  c  om*/
                logger.info("Vertx cluster node started [{}]");
                vertx = ar.result();
                logger.info("Initialising vertx verticles...");
                latch.countDown();
            });
    latch.await();
}

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From source file:com.twitter.common.zookeeper.GroupTest.java

@Test
public void testSessionExpirationTriggersOnLoseMembership() throws Exception {
    final CountDownLatch lostMembership = new CountDownLatch(1);
    Command onLoseMembership = new Command() {
        @Override/* w  ww  .  j a v a2 s .c  o  m*/
        public void execute() throws RuntimeException {
            lostMembership.countDown();
        }
    };
    assertEmptyMembershipObserved();

    Membership membership = group.join(onLoseMembership);
    assertMembershipObserved(membership.getMemberId());
    expireSession(zkClient);

    lostMembership.await(); // Will hang this test if onLoseMembership event is not propagated.
}

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From source file:com.github.oscerd.component.cassandra.embedded.CassandraBaseTest.java

@Override
public void doPostSetup() {
    String id = RandomStringUtils.random(12, "0123456789abcdefghijklmnopqrstuvwxyz");
    fs = new Farsandra();
    fs.withVersion("2.0.3");
    fs.withCleanInstanceOnStart(true);//from   w w  w.  j a  v a2  s  . c o  m
    fs.withInstanceName("target" + File.separator + id);
    fs.withCreateConfigurationFiles(true);
    fs.withHost("localhost");
    fs.withSeeds(Arrays.asList("localhost"));
    final CountDownLatch started = new CountDownLatch(1);
    fs.getManager().addOutLineHandler(new LineHandler() {
        @Override
        public void handleLine(String line) {
            if (line.contains("Listening for thrift clients...")) {
                started.countDown();
            }
        }
    });
    fs.getManager().addProcessHandler(new ProcessHandler() {
        @Override
        public void handleTermination(int exitValue) {
            started.countDown();
        }
    });
    fs.start();
    try {
        started.await();
        Thread.sleep(3000);
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    Cluster cluster = Cluster.builder().addContactPoint("127.0.0.1").build();
    Session session = cluster.connect();
    session.execute("CREATE KEYSPACE IF NOT EXISTS simplex WITH replication "
            + "= {'class':'SimpleStrategy', 'replication_factor':3};");
    session.execute("CREATE TABLE IF NOT EXISTS simplex.songs (" + "id int PRIMARY KEY," + "title text,"
            + "album text," + "artist text," + "tags set<text>," + "data blob," + ");");
    session.execute("CREATE INDEX IF NOT EXISTS album_idx ON simplex.songs(album);");
    session.execute("CREATE INDEX IF NOT EXISTS title_idx ON simplex.songs(title);");
    PreparedStatement statement = session.prepare(
            "INSERT INTO simplex.songs " + "(id, title, album, artist, tags) " + "VALUES (?, ?, ?, ?, ?);");
    BoundStatement boundStatement = new BoundStatement(statement);
    List<Song> songList = new ArrayList<Song>();
    prepareStartingData(songList);
    Iterator it = songList.iterator();
    while (it.hasNext()) {
        Song song = (Song) it.next();
        ResultSet res = session.execute(boundStatement.bind(song.getId(), song.getTitle(), song.getAlbum(),
                song.getArtist(), song.getTags()));
    }
    session.close();
    cluster.close();
    try {
        Thread.sleep(5 * 1000);
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

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From source file:com.microsoft.office.integration.test.EventsAsyncTestCase.java

private void createAndCheck() throws Exception {
    prepareEvent();//from  w ww.  j a  v  a2s  . c o m
    final CountDownLatch cdl = new CountDownLatch(1);
    Futures.addCallback(Me.flushAsync(), new FutureCallback<Void>() {
        public void onFailure(Throwable t) {
            reportError(t);
            cdl.countDown();
        }

        public void onSuccess(Void result) {
            try {
                assertTrue(StringUtils.isNotEmpty(EventsAsyncTestCase.this.event.getId()));
            } catch (Throwable t) {
                reportError(t);
            }

            cdl.countDown();
        }
    });

    cdl.await();
}

---

From source file:com.bt.aloha.dialog.DialogConcurrentUpdateBlockTest.java

@Test
public void testSequenceNumberReleasedOnFailedForcedUpdate() {
    // setup/*from  w  w w.j  a  va 2  s .com*/
    final CountDownLatch firstWriterRead = new CountDownLatch(1);
    final CountDownLatch secondWriterWrote = new CountDownLatch(1);

    DialogConcurrentUpdateBlock dialogConcurrentUpdateBlock = new DialogConcurrentUpdateBlock(
            dialogBeanHelper) {
        public void execute() {
            DialogInfo dialogInfo = dialogCollection.get("id");
            firstWriterRead.countDown();
            forceSequenceNumber(dialogInfo.getId(), 4L, Request.INVITE);
            log.debug("Waiting for second writer to write");
            try {
                secondWriterWrote.await();
            } catch (InterruptedException e) {
                throw new RuntimeException(e.getMessage(), e);
            }
            dialogCollection.replace(dialogInfo);
        }

        public String getResourceId() {
            return "id";
        }
    };

    // act
    new Thread(new CompetingWriter(firstWriterRead, secondWriterWrote)).start();
    concurrentUpdateManager.executeConcurrentUpdate(dialogConcurrentUpdateBlock);

    // assert
    assertEquals(3, dialogCollection.get("id").getSequenceNumber());
    assertEquals(1, releasedSequenceNumbers.size());
    assertEquals(4, releasedSequenceNumbers.get(0));
    assertEquals(4, lastSequenceNumber);
}

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From source file:org.cleverbus.core.common.asynch.queue.MessagePollExecutorTest.java

@Test
public void testGetNextMessage_moreThreads() throws InterruptedException {
    // prepare threads
    int threads = 5;
    final CountDownLatch latch = new CountDownLatch(threads);
    Runnable task = new Runnable() {

        @Override/*  w w  w . j a  v a  2s .  c o  m*/
        public void run() {
            try {
                messagePollExecutor.run();
            } finally {
                latch.countDown();
            }
        }
    };

    mock.expectedMessageCount(3);

    // start processing and waits for result
    for (int i = 0; i < threads; i++) {
        new Thread(task).start();
    }

    latch.await();

    mock.assertIsSatisfied();

    // verify messages
    Message msg = findMessage("1234_4567");
    assertThat(msg, notNullValue());
    assertThat(msg.getState(), is(MsgStateEnum.PROCESSING));

    msg = findMessage("1234_4567_8");
    assertThat(msg, notNullValue());
    assertThat(msg.getState(), is(MsgStateEnum.PROCESSING));

    msg = findMessage("1234_4567_9");
    assertThat(msg, notNullValue());
    assertThat(msg.getState(), is(MsgStateEnum.PROCESSING));
}

---

From source file:com.microsoft.office.core.EventsAsyncTestCase.java

private void deleteAndCheck() throws Exception {
    removeEvent();/*from ww  w  . jav a 2s.  c o m*/
    final CountDownLatch cdl = new CountDownLatch(1);
    Futures.addCallback(Me.getEvents().getAsync(event.getId()), new FutureCallback<IEvent>() {
        @Override
        public void onFailure(Throwable t) {
            reportError(t);
            cdl.countDown();
        }

        @Override
        public void onSuccess(IEvent result) {
            try {
                assertNull(result);
            } catch (Throwable t) {
                reportError(t);
            }

            cdl.countDown();
        }
    });
    cdl.await();
}

---

From source file:com.linkedin.pinot.integration.tests.OfflineClusterIntegrationTest.java

@BeforeClass
public void setUp() throws Exception {
    //Clean up/*from w  w  w  .j  av  a2  s. c o m*/
    ensureDirectoryExistsAndIsEmpty(_tmpDir);
    ensureDirectoryExistsAndIsEmpty(_segmentDir);
    ensureDirectoryExistsAndIsEmpty(_tarDir);

    // Start the cluster
    startCluster();

    // Unpack the Avro files
    final List<File> avroFiles = unpackAvroData(_tmpDir, SEGMENT_COUNT);

    createTable();

    // Load data into H2
    ExecutorService executor = Executors.newCachedThreadPool();
    setupH2AndInsertAvro(avroFiles, executor);

    // Create segments from Avro data
    buildSegmentsFromAvro(avroFiles, executor, 0, _segmentDir, _tarDir, "mytable", false, null);

    // Initialize query generator
    setupQueryGenerator(avroFiles, executor);

    executor.shutdown();
    executor.awaitTermination(10, TimeUnit.MINUTES);

    // Set up a Helix spectator to count the number of segments that are uploaded and unlock the latch once 12 segments are online
    final CountDownLatch latch = setupSegmentCountCountDownLatch("mytable", SEGMENT_COUNT);

    // Upload the segments
    int i = 0;
    for (String segmentName : _tarDir.list()) {
        System.out.println("Uploading segment " + (i++) + " : " + segmentName);
        File file = new File(_tarDir, segmentName);
        FileUploadUtils.sendSegmentFile("localhost", "8998", segmentName, new FileInputStream(file),
                file.length());
    }

    // Wait for all segments to be online
    latch.await();
    TOTAL_DOCS = 115545;
    long timeInTwoMinutes = System.currentTimeMillis() + 2 * 60 * 1000L;
    long numDocs;
    while ((numDocs = getCurrentServingNumDocs()) < TOTAL_DOCS) {
        System.out.println("Current number of documents: " + numDocs);
        if (System.currentTimeMillis() < timeInTwoMinutes) {
            Thread.sleep(1000);
        } else {
            Assert.fail("Segments were not completely loaded within two minutes");
        }
    }
}

---

From source file:ufo.remote.calls.benchmark.server.vertx.VertxServiceImpl.java

@PostConstruct
public void init() throws InterruptedException {
    final CountDownLatch latch = new CountDownLatch(1);
    final VertxOptions options = new VertxOptions();
    final Config conf = new Config();
    Vertx.clusteredVertx(options.setClusterHost("localhost").setClusterPort(0).setClustered(true)
            .setClusterManager(new HazelcastClusterManager(conf)), ar -> {
                if (ar.failed()) {
                    logger.error("Error starting Vertx cluster", ar.cause());
                }/*from   w w w.j a v a 2s. c  o  m*/
                logger.info("Vertx cluster node started [{}]");
                vertx = ar.result();
                logger.info("Initialising vertx verticles...");
                vertx.deployVerticle(webServerVerticle);
                latch.countDown();
            });
    latch.await();
}

---

From source file:hydrograph.server.execution.tracking.client.main.HydrographMain.java

/**
 * //w  ww .j a v a  2s .  co  m
 * 
 * @param latch
 * @param jobId
 * @param argsFinalList
 * @param execution
 * @param isExecutionTracking
 * @return
 */
private FutureTask executeGraph(final CountDownLatch latch, final String jobId, final String[] argsFinalList,
        final HydrographService execution, final boolean isExecutionTracking) {
    logger.trace("Creating executor thread");

    return new FutureTask(new Runnable() {
        public void run() {
            try {
                logger.debug("Executing the job from execute graph");
                execution.executeGraph(argsFinalList);
                if (isExecutionTracking) {
                    latch.await();
                }

            } catch (Exception e) {
                logger.error("JOB FAILED :", e);
                if (isExecutionTracking) {
                    try {
                        latch.await();
                    } catch (InterruptedException e1) {
                        logger.error("job fail :", e1);
                    }
                }
                throw new RuntimeException(e);
            }
        }
    }, null);

}

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