Example usage for java.util.concurrent CountDownLatch CountDownLatch

Introduction

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

Prototype

public CountDownLatch(int count) 

Source Link

Document

Constructs a CountDownLatch initialized with the given count.

Usage

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

@Test
public void testCustomExecutor() throws Exception {
    final int ITERATIONS = 1000;

    Timing timing = new Timing();
    DistributedQueue<String> queue = null;
    final CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(),
            timing.session(), timing.connection(), new RetryOneTime(1));
    client.start();/*from  w  w w. j  a  va  2  s .c o  m*/
    try {
        final CountDownLatch latch = new CountDownLatch(ITERATIONS);
        QueueConsumer<String> consumer = new QueueConsumer<String>() {
            @Override
            public void consumeMessage(String message) throws Exception {
                latch.countDown();
            }

            @Override
            public void stateChanged(CuratorFramework client, ConnectionState newState) {
            }
        };
        QueueSerializer<String> serializer = new QueueSerializer<String>() {
            @Override
            public byte[] serialize(String item) {
                return item.getBytes();
            }

            @Override
            public String deserialize(byte[] bytes) {
                return new String(bytes);
            }
        };

        Executor executor = Executors.newCachedThreadPool();

        final Set<String> used = Sets.newHashSet();
        final Set<String> doubleUsed = Sets.newHashSet();
        queue = new DistributedQueue<String>(client, consumer, serializer, QUEUE_PATH,
                QueueBuilder.defaultThreadFactory, executor, Integer.MAX_VALUE, false, "/lock",
                QueueBuilder.NOT_SET, true, 5000) {
            @SuppressWarnings("SimplifiableConditionalExpression")
            @Override
            protected boolean processWithLockSafety(String itemNode, DistributedQueue.ProcessType type)
                    throws Exception {
                if (used.contains(itemNode)) {
                    doubleUsed.add(itemNode);
                } else {
                    used.add(itemNode);
                }
                return (client.getState() == CuratorFrameworkState.STARTED)
                        ? super.processWithLockSafety(itemNode, type)
                        : false;
            }
        };
        queue.start();

        for (int i = 0; i < ITERATIONS; ++i) {
            queue.put(Integer.toString(i));
        }

        Assert.assertTrue(timing.awaitLatch(latch));

        Assert.assertTrue(doubleUsed.size() == 0, doubleUsed.toString());
    } finally {
        IOUtils.closeQuietly(queue);
        IOUtils.closeQuietly(client);
    }
}

---

From source file:com.vmware.photon.controller.nsxclient.apis.DhcpServiceApiTest.java

@Test
public void testGetDhcpRelayProfile() throws IOException, InterruptedException {
    final DhcpRelayProfile mockResponse = new DhcpRelayProfile();
    mockResponse.setId("id");
    mockResponse.setResourceType(ServiceProfileResourceType.DHCP_RELAY_PROFILE);
    setupMocks(objectMapper.writeValueAsString(mockResponse), HttpStatus.SC_OK);

    DhcpServiceApi client = new DhcpServiceApi(restClient);
    final CountDownLatch latch = new CountDownLatch(1);
    client.getDhcpRelayProfile("id", new com.google.common.util.concurrent.FutureCallback<DhcpRelayProfile>() {
        @Override/*w w w  . ja va2s .  c  om*/
        public void onSuccess(DhcpRelayProfile result) {
            assertEquals(result, mockResponse);
            latch.countDown();
        }

        @Override
        public void onFailure(Throwable t) {
            fail(t.toString());
            latch.countDown();
        }
    });

    assertThat(latch.await(COUNTDOWNLATCH_AWAIT_TIMEOUT, TimeUnit.SECONDS), is(true));
}

---

From source file:com.ottogroup.bi.streaming.runtime.StreamingAppRuntimeTest.java

/**
 * Test case for {@link StreamingAppRuntime#getOptions()}
 *//*from www .  j  ava  2s .  c o  m*/
@Test
public void testGetOptions() {
    final Options options = new DummyLogProcessingRuntime(new CountDownLatch(1)).getOptions();
    Assert.assertNotNull(options);
    Assert.assertFalse(options.getOptions().isEmpty());
    Assert.assertEquals(1, options.getOptions().size());
    Assert.assertTrue(options.hasOption(StreamingAppRuntime.CLI_CONFIG_FILE));
    Assert.assertTrue(options.hasOption(StreamingAppRuntime.CLI_CONFIG_FILE_SHORT));
}

---

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

@Test(timeout = 60000)
public void deleteTest() throws Exception {
    prepareFolder();//from  w  w  w. jav a2  s  . c  om
    counter = new CountDownLatch(1);
    Futures.addCallback(Me.flushAsync(), new FutureCallback<Void>() {
        @Override
        public void onFailure(Throwable t) {
            reportError(t);
            counter.countDown();
        }

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

            counter.countDown();
        }
    });
    counter.await();
}

---

From source file:com.couchbase.client.TestingClient.java

public HttpFuture<String> asyncHttpGet(String uri) throws UnsupportedEncodingException {
    final CountDownLatch couchLatch = new CountDownLatch(1);
    final HttpFuture<String> crv = new HttpFuture<String>(couchLatch, operationTimeout);

    HttpRequest request = new BasicHttpRequest("GET", uri, HttpVersion.HTTP_1_1);
    HttpOperationImpl op = new TestOperationImpl(request, new TestCallback() {
        private String json;

        @Override//from  www .j a va 2 s. c o  m
        public void receivedStatus(OperationStatus status) {
            crv.set(json, status);
        }

        @Override
        public void complete() {
            couchLatch.countDown();
        }

        @Override
        public void getData(String response) {
            json = response;
        }
    });
    crv.setOperation(op);
    addOp(op);
    return crv;
}

---

From source file:com.netflix.curator.framework.recipes.leader.TestLeaderLatch.java

@Test
public void testLostConnection() throws Exception {
    final int PARTICIPANT_QTY = 10;

    List<LeaderLatch> latches = Lists.newArrayList();

    final Timing timing = new Timing();
    final CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(),
            timing.session(), timing.connection(), new RetryOneTime(1));
    try {/*  w w  w  .  j  ava 2 s  .  co m*/
        client.start();

        final CountDownLatch countDownLatch = new CountDownLatch(1);
        client.getConnectionStateListenable().addListener(new ConnectionStateListener() {
            @Override
            public void stateChanged(CuratorFramework client, ConnectionState newState) {
                if (newState == ConnectionState.LOST) {
                    countDownLatch.countDown();
                }
            }
        });

        for (int i = 0; i < PARTICIPANT_QTY; ++i) {
            LeaderLatch latch = new LeaderLatch(client, PATH_NAME);
            latch.start();
            latches.add(latch);
        }

        waitForALeader(latches, timing);

        server.stop();
        Assert.assertTrue(timing.awaitLatch(countDownLatch));

        timing.forWaiting().sleepABit();

        Assert.assertEquals(getLeaders(latches).size(), 0);

        server = new TestingServer(server.getPort(), server.getTempDirectory());
        Assert.assertEquals(waitForALeader(latches, timing).size(), 1); // should reconnect
    } finally {
        for (LeaderLatch latch : latches) {
            IOUtils.closeQuietly(latch);
        }
        IOUtils.closeQuietly(client);
    }
}

---

From source file:ninja.eivind.hotsreplayuploader.files.tempwatcher.RecursiveTempWatcherTest.java

@Test
public void testCallbackIsInvokedWhenRelevantFileIsDiscovered() throws Exception {
    CountDownLatch latch = new CountDownLatch(1);
    final File[] fileAccessor = new File[1];
    final File tempWriteReplayFolder = new File(directories.getRemainder(), "TempWriteReplayP99");
    final File target = new File(tempWriteReplayFolder, BattleLobbyWatcher.REPLAY_SERVER_BATTLELOBBY);
    tempWatcher.setCallback(file -> {
        fileAccessor[0] = file;/*from   w w  w  .  j  av  a  2  s  . c  om*/
        latch.countDown();
    });

    if (!(tempWriteReplayFolder.mkdirs() && target.createNewFile())) {
        fail("Could not create file to drop target " + target + " in");
    }

    if (!latch.await(50000, TimeUnit.MILLISECONDS)) {
        fail("Latch was not tripped.");
    }

    final String expected = target.getName();
    final String actual = fileAccessor[0].getName();

    assertEquals(expected, actual);
}

---

From source file:org.apache.felix.http.itest.SessionHandlingTest.java

private void setupLatches(int count) {
    initLatch = new CountDownLatch(count);
    destroyLatch = new CountDownLatch(count);
}

---

From source file:org.elasticsearch.logstash.Application.java

@Bean
public CountDownLatch latch(Integer numberOfJokes) {
    return new CountDownLatch(numberOfJokes);
}

---

From source file:com.vmware.photon.controller.api.client.resource.ImagesApiTest.java

@Test
public void testGetImageAsync() throws IOException, InterruptedException {
    final Image image = new Image();
    image.setId("image1");

    ObjectMapper mapper = new ObjectMapper();
    String serializedTask = mapper.writeValueAsString(image);

    setupMocks(serializedTask, HttpStatus.SC_OK);

    ImagesApi imagesApi = new ImagesApi(this.restClient);
    final CountDownLatch latch = new CountDownLatch(1);

    imagesApi.getImageAsync(image.getId(), new FutureCallback<Image>() {
        @Override//ww  w  . ja v  a  2 s .co m
        public void onSuccess(@Nullable Image result) {
            assertEquals(result, image);
            latch.countDown();
        }

        @Override
        public void onFailure(Throwable t) {
            fail(t.toString());
            latch.countDown();
        }
    });

    assertThat(latch.await(COUNTDOWNLATCH_AWAIT_TIMEOUT, TimeUnit.SECONDS), is(true));
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »