Example usage for java.util.concurrent Executors newSingleThreadExecutor

List of usage examples for java.util.concurrent Executors newSingleThreadExecutor

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Introduction

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

Prototype

public static ExecutorService newSingleThreadExecutor()

Source Link

Document

Creates an Executor that uses a single worker thread operating off an unbounded queue.

Usage

From source file:com.cognifide.actions.msg.push.active.PushClient.java

private void startLoops() {
    for (AgentConfig config : agentConfigManager.getConfigurations().values()) {
        if (config.isEnabled() && config.usedForReverseReplication()) {
            try {
                final PushClientRunnable loop = createLoop(config);
                Executors.newSingleThreadExecutor().execute(loop);
                loops.add(loop);//  w ww  .  java 2  s . com
            } catch (URISyntaxException e) {
                LOG.error("Can't parse agent url: " + config.getTransportURI(), e);
            }
        }
    }
}

From source file:com.streamsets.pipeline.stage.origin.s3.TestAmazonS3SourceDataFormats.java

@BeforeClass
public static void setUpClass() throws IOException, InterruptedException {
    File dir = new File(new File("target", UUID.randomUUID().toString()), "fakes3_root").getAbsoluteFile();
    Assert.assertTrue(dir.mkdirs());/*from  w  w  w  .j a v  a  2s .  com*/
    fakeS3Root = dir.getAbsolutePath();
    port = TestUtil.getFreePort();
    fakeS3 = new FakeS3(fakeS3Root, port);
    Assume.assumeTrue("Please install fakes3 in your system", fakeS3.fakes3Installed());
    //Start the fakes3 server
    executorService = Executors.newSingleThreadExecutor();
    executorService.submit(fakeS3);

    populateFakes3();
}

From source file:de.dfki.iui.mmds.scxml.engine.SCXMLEngineActivator.java

public static void postScxmlOnExitEvent(final String id, final TransitionTarget state) {
    if (getEventAdmin() == null)
        return;/* w  ww  .  j  ava  2 s.  c  o m*/
    Executors.newSingleThreadExecutor().execute(new Runnable() {
        @Override
        public void run() {
            getEventAdmin().postEvent(new SCXMLOnExitEvent(id, state));
        }
    });
}

From source file:com.opengamma.web.server.AggregatedViewDefinitionManager.java

public AggregatedViewDefinitionManager(PositionSource positionSource, SecuritySource securitySource,
        ConfigSource combinedConfigSource, ConfigMaster userConfigMaster, PortfolioMaster userPortfolioMaster,
        PositionMaster userPositionMaster, Map<String, AggregationFunction<?>> portfolioAggregators) {
    _positionSource = positionSource;//w w  w.j  av a 2s  .c  o m
    _securitySource = securitySource;
    _combinedConfigSource = combinedConfigSource;
    _userConfigMaster = userConfigMaster;
    _userPortfolioMaster = userPortfolioMaster;
    _portfolioAggregators = portfolioAggregators;
    _portfolioSaver = new SavePortfolio(Executors.newSingleThreadExecutor(), userPortfolioMaster,
            userPositionMaster);
}

From source file:com.spotify.reaper.unit.service.SegmentRunnerTest.java

@Test
public void timeoutTest() throws InterruptedException, ReaperException, ExecutionException {
    final AppContext context = new AppContext();
    context.storage = new MemoryStorage();
    RepairUnit cf = context.storage//from  ww w  . j a  va 2 s .c  om
            .addRepairUnit(new RepairUnit.Builder("reaper", "reaper", Sets.newHashSet("reaper")));
    RepairRun run = context.storage.addRepairRun(
            new RepairRun.Builder("reaper", cf.getId(), DateTime.now(), 0.5, 1, RepairParallelism.PARALLEL));
    context.storage.addRepairSegments(Collections.singleton(
            new RepairSegment.Builder(run.getId(), new RingRange(BigInteger.ONE, BigInteger.ZERO), cf.getId())),
            run.getId());
    final long segmentId = context.storage.getNextFreeSegment(run.getId()).get().getId();

    final ExecutorService executor = Executors.newSingleThreadExecutor();
    final MutableObject<Future<?>> future = new MutableObject<>();

    context.jmxConnectionFactory = new JmxConnectionFactory() {
        @Override
        public JmxProxy connect(final Optional<RepairStatusHandler> handler, String host) {
            JmxProxy jmx = mock(JmxProxy.class);
            when(jmx.getClusterName()).thenReturn("reaper");
            when(jmx.isConnectionAlive()).thenReturn(true);
            when(jmx.tokenRangeToEndpoint(anyString(), any(RingRange.class)))
                    .thenReturn(Lists.newArrayList(""));
            when(jmx.triggerRepair(any(BigInteger.class), any(BigInteger.class), anyString(),
                    Matchers.<RepairParallelism>any(), Sets.newHashSet(anyString())))
                            .then(new Answer<Integer>() {
                                @Override
                                public Integer answer(InvocationOnMock invocation) {
                                    assertEquals(RepairSegment.State.NOT_STARTED,
                                            context.storage.getRepairSegment(segmentId).get().getState());
                                    future.setValue(executor.submit(new Thread() {
                                        @Override
                                        public void run() {
                                            handler.get().handle(1, ActiveRepairService.Status.STARTED,
                                                    "Repair command 1 has started");
                                            assertEquals(RepairSegment.State.RUNNING, context.storage
                                                    .getRepairSegment(segmentId).get().getState());
                                        }
                                    }));
                                    return 1;
                                }
                            });

            return jmx;
        }
    };
    RepairRunner rr = mock(RepairRunner.class);
    RepairUnit ru = mock(RepairUnit.class);
    SegmentRunner sr = new SegmentRunner(context, segmentId, Collections.singleton(""), 100, 0.5,
            RepairParallelism.PARALLEL, "reaper", ru, rr);
    sr.run();

    future.getValue().get();
    executor.shutdown();

    assertEquals(RepairSegment.State.NOT_STARTED, context.storage.getRepairSegment(segmentId).get().getState());
    assertEquals(1, context.storage.getRepairSegment(segmentId).get().getFailCount());
}

From source file:com.xeiam.xchange.examples.mtgox.v2.service.trade.streaming.MtGoxWebSocketTradeDemo.java

public void start() throws ExecutionException, InterruptedException {

    // Use the default MtGox settings
    Exchange mtGoxExchange = MtGoxV2ExamplesUtils.createExchange();

    ExchangeStreamingConfiguration exchangeStreamingConfiguration = new MtGoxStreamingConfiguration(10, 10000,
            60000, false, null);/*  w ww  .  j  ava 2s  .  c om*/

    // Interested in the public streaming market data feed (no authentication)
    StreamingExchangeService streamingExchangeService = mtGoxExchange
            .getStreamingExchangeService(exchangeStreamingConfiguration);

    // Open the connections to the exchange
    streamingExchangeService.connect();

    ExecutorService executorService = Executors.newSingleThreadExecutor();
    Future<?> mtGoxMarketDataFuture = executorService
            .submit(new TradeDataRunnable(streamingExchangeService, mtGoxExchange));

    // the thread waits here until the Runnable is done.
    mtGoxMarketDataFuture.get();

    executorService.shutdown();

    // Disconnect and exit
    System.out.println(Thread.currentThread().getName() + ": Disconnecting...");
    streamingExchangeService.disconnect();
}

From source file:arlocros.ArMarkerPoseEstimator.java

private ArMarkerPoseEstimator(final ConnectedNode connectedNode, Parameter parameter,
        Publisher<PoseStamped> posePublisher) {
    mostRecentPose = new AtomicReference<>();
    this.parameter = parameter;
    this.posePublisher = posePublisher;
    Executors.newSingleThreadExecutor().submit(new Runnable() {
        @Override//from   w w w.j  a v  a 2s.  co  m
        public void run() {
            start(connectedNode);
        }
    });
}

From source file:com.google.cloud.speech.grpc.demos.NonStreamingRecognizeClient.java

/**
 * Construct client connecting to Cloud Speech server at {@code host:port}.
 *///from ww  w.j a v a  2s  . c  om
public NonStreamingRecognizeClient(String host, int port, URI input, int samplingRate) throws IOException {
    this.host = host;
    this.port = port;
    this.input = input;
    this.samplingRate = samplingRate;

    GoogleCredentials creds = GoogleCredentials.getApplicationDefault();
    creds = creds.createScoped(OAUTH2_SCOPES);
    channel = NettyChannelBuilder.forAddress(host, port).negotiationType(NegotiationType.TLS)
            .intercept(new ClientAuthInterceptor(creds, Executors.newSingleThreadExecutor())).build();
    blockingStub = SpeechGrpc.newBlockingStub(channel);
    logger.info("Created blockingStub for " + host + ":" + port);
}

From source file:com.srotya.sidewinder.cluster.storage.ClusteredMemStorageEngine.java

@Override
public void connect() throws IOException {
    this.local.connect();
    Executors.newSingleThreadExecutor().submit(columbus);
    while (columbus.getWorkerCount() < clusterSize) {
        try {/*from   w w  w .ja v  a 2  s  .  c o  m*/
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            break;
        }
        logger.info("Waiting for worker discovery");
    }
    this.clients = new HashMap<>();
    for (Entry<Integer, WorkerEntry> entry : columbus.getWorkerMap().entrySet()) {
        if (entry.getKey() != columbus.getSelfWorkerId()) {
            TCPClient client = new TCPClient(entry.getValue());
            clients.put(entry.getKey(), client);
            client.connect();
            logger.info("Connected to " + entry.getValue().getWorkerAddress());
        }
    }
    logger.info("All worker connections initialized");
}

From source file:net.java.html.charts.ChartsTest.java

/**
 *
 * @throws InterruptedException//from   ww  w .  j a va2 s  .c om
 */
@BeforeMethod
public void initializePresenter() throws InterruptedException {
    animationComplete = false;
    final CountDownLatch initialized = new CountDownLatch(1);
    final BrowserBuilder builder = BrowserBuilder.newBrowser().loadPage("charts.html").loadFinished(() -> {
        presenter = Fn.activePresenter();
        initialized.countDown();
    });
    Executors.newSingleThreadExecutor().execute(builder::showAndWait);
    initialized.await();
    assertNotNull(presenter, "We have the presenter");
}