Example usage for com.google.common.util.concurrent Futures getUnchecked

List of usage examples for com.google.common.util.concurrent Futures getUnchecked

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Introduction

In this page you can find the example usage for com.google.common.util.concurrent Futures getUnchecked.

Prototype

@GwtIncompatible("TODO")
public static <V> V getUnchecked(Future<V> future)

Source Link

Document

Returns the result of calling Future#get() uninterruptibly on a task known not to throw a checked exception.

Usage

From source file:com.continuuity.loom.common.zookeeper.IdService.java

private long generateId(Type type) {
    idLock.get().acquire();/*from w  w w.j a v a 2s.c o  m*/
    try {
        NodeData nodeData = Futures.getUnchecked(zkClient.getData(type.path));
        long counterVal = Longs.fromByteArray(nodeData.getData());
        Futures.getUnchecked(zkClient.setData(type.path, Longs.toByteArray(counterVal + incrementBy)));
        return counterVal;
    } finally {
        idLock.get().release();
    }
}

From source file:co.cask.cdap.gateway.runtime.Main.java

@Override
public void start() {
    LOG.info("Starting Gateway...");
    Futures.getUnchecked(
            Services.chainStart(zkClientService, kafkaClientService, metricsCollectionService, flumeCollector));
}

From source file:com.continuuity.loom.common.zookeeper.lib.ZKInterProcessReentrantLock.java

public boolean release() {
    if (lockNode == null) {
        return false;
    }//  w  w w .j a v a  2 s.  c om
    // if we hold a lock, we release it by deleting the node
    // todo: check that we still hold the lock?
    Futures.getUnchecked(zkClient.delete(lockNode));
    return true;
}

From source file:org.apache.aurora.scheduler.app.local.FakeMaster.java

@Override
public Status start() {
    assertNotStopped();/*from   w  w w  .  j a  v  a  2s .  c om*/

    Futures.getUnchecked(schedulerFuture).registered(this, FrameworkID.newBuilder().setValue("local").build(),
            MasterInfo.getDefaultInstance());

    eventBus.post(new Started());

    executor.scheduleAtFixedRate(() -> {
        List<Offer> allOffers;
        synchronized (sentOffers) {
            synchronized (idleOffers) {
                sentOffers.putAll(idleOffers);
                allOffers = ImmutableList.copyOf(idleOffers.values());
                idleOffers.clear();
            }
        }

        if (allOffers.isEmpty()) {
            LOG.info("All offers consumed, suppressing offer cycle.");
        } else {
            Futures.getUnchecked(schedulerFuture).resourceOffers(this, allOffers);
        }
    }, 1, 5, TimeUnit.SECONDS);

    return Status.DRIVER_RUNNING;
}

From source file:org.apache.twill.internal.TwillContainerLauncher.java

/**
 * Start execution run for a class in a container. Will return instance of {@link TwillContainerController}
 * that allows sending messages directly to the container.
 *
 * @param runId Use to represent unique id of the container run.
 * @param instanceId The Twill instance Id.
 * @param mainClass The main class to run in the container.
 * @param classPath The class path to load classes for the container.
 * @param logLevelLocation The log level file location for the container to localize.
 * @return instance of {@link TwillContainerController} to control the container run.
 *//*from   w w  w.  j av  a2 s  .c  o m*/
public TwillContainerController start(RunId runId, int instanceId, Class<?> mainClass, String classPath,
        @Nullable Location logLevelLocation) {
    // Clean up zookeeper path in case this is a retry and there are old messages and state there.
    Futures.getUnchecked(ZKOperations.ignoreError(ZKOperations.recursiveDelete(zkClient, "/" + runId),
            KeeperException.NoNodeException.class, null));

    // Adds all file to be localized to container
    launchContext.addResources(runtimeSpec.getLocalFiles());

    // Optionally localize secure store and log level file.
    try {
        if (secureStoreLocation != null && secureStoreLocation.exists()) {
            launchContext
                    .addResources(new DefaultLocalFile(Constants.Files.CREDENTIALS, secureStoreLocation.toURI(),
                            secureStoreLocation.lastModified(), secureStoreLocation.length(), false, null));
        }
        if (logLevelLocation != null && logLevelLocation.exists()) {
            launchContext
                    .addResources(new DefaultLocalFile(Constants.Files.LOG_LEVELS, logLevelLocation.toURI(),
                            logLevelLocation.lastModified(), logLevelLocation.length(), false, null));
        }
    } catch (IOException e) {
        LOG.warn("Failed to launch container with secure store {}.", secureStoreLocation);
    }

    // Currently no reporting is supported for runnable containers
    launchContext.addEnvironment(EnvKeys.TWILL_RUN_ID, runId.getId())
            .addEnvironment(EnvKeys.TWILL_RUNNABLE_NAME, runtimeSpec.getName())
            .addEnvironment(EnvKeys.TWILL_INSTANCE_ID, Integer.toString(instanceId))
            .addEnvironment(EnvKeys.TWILL_INSTANCE_COUNT, Integer.toString(instanceCount));

    // assemble the command based on jvm options
    ImmutableList.Builder<String> commandBuilder = ImmutableList.builder();
    String firstCommand;
    if (jvmOpts.getDebugOptions().doDebug(runtimeSpec.getName())) {
        // for debugging we run a quick Java program to find a free port, then pass that port as the debug port and also
        // as a System property to the runnable (Java has no general way to determine the port from within the JVM).
        // PORT=$(java FindFreePort) && java -agentlib:jdwp=...,address=\$PORT -Dtwill.debug.port=\$PORT... TwillLauncher
        // The $ must be escaped, otherwise it gets expanded (to "") before the command is submitted.
        String suspend = jvmOpts.getDebugOptions().doSuspend() ? "y" : "n";
        firstCommand = "TWILL_DEBUG_PORT=$($JAVA_HOME/bin/java";
        commandBuilder.add("-cp", Constants.Files.LAUNCHER_JAR, FindFreePort.class.getName() + ")", "&&", // this will stop if FindFreePort fails
                "$JAVA_HOME/bin/java", "-agentlib:jdwp=transport=dt_socket,server=y,suspend=" + suspend + ","
                        + "address=\\$TWILL_DEBUG_PORT",
                "-Dtwill.debug.port=\\$TWILL_DEBUG_PORT");
    } else {
        firstCommand = "$JAVA_HOME/bin/java";
    }

    maxHeapSizeMB = Resources.computeMaxHeapSize(containerInfo.getMemoryMB(), reservedMemory, minHeapRatio);
    commandBuilder.add("-Djava.io.tmpdir=tmp", "-Dyarn.container=$" + EnvKeys.YARN_CONTAINER_ID,
            "-Dtwill.runnable=$" + Constants.TWILL_APP_NAME + ".$" + EnvKeys.TWILL_RUNNABLE_NAME, "-cp",
            Constants.Files.LAUNCHER_JAR + ":" + classPath, "-Xmx" + maxHeapSizeMB + "m");
    String extraOptions = jvmOpts.getRunnableExtraOptions(runtimeSpec.getName());
    if (!extraOptions.isEmpty()) {
        commandBuilder.add(extraOptions);
    }
    commandBuilder.add(TwillLauncher.class.getName(), mainClass.getName(), Boolean.TRUE.toString());
    List<String> command = commandBuilder.build();

    ProcessController<Void> processController = launchContext
            .addCommand(firstCommand, command.toArray(new String[command.size()])).launch();

    TwillContainerControllerImpl controller = new TwillContainerControllerImpl(zkClient, runId,
            runtimeSpec.getName(), instanceId, processController);
    controller.start();
    return controller;
}

From source file:com.torodb.torod.db.backends.metaInf.CollectionMetaInfo.java

void createSubDocTypeTable(@Nonnull SessionExecutor sessionExecutor, @Nonnull SubDocType type) {
    if (createdSubDocTypes.contains(type)) { //it was previously created
        return; //so nothing has to be done
    }//w w w.  j a  v a 2  s  . c  o  m

    Long tick = creationPendingJobs.get(type);
    if (tick != null) { //if we are creating the table right now...
        sessionExecutor.pauseUntil(tick); //wait until the table is created
        return;
    }
    LOGGER.debug("{}.{} table was not created", collection, type);

    lock.lock();
    try {
        if (createdSubDocTypes.contains(type)) { //another thread oredered the creation and it has already been executed
            LOGGER.debug("{}.{} table was created while I was waiting", collection, type);
            return; //so nothing has to be done
        }
        tick = creationPendingJobs.get(type);
        if (tick != null) { //another thread ordered the table creation
            LOGGER.debug("{}.{} table creation has been scheduled while I was waiting", collection, type);
            sessionExecutor.pauseUntil(tick); //so this thread must wait until the creation is executed
            return;
        }
        //this thread has the lock and nobody ordered the creation before it get the lock, so this thread must order the creation
        LOGGER.debug("I will schedule creation of {}.{} table", collection, type);

        Future<?> future = systemExecutor.createSubDocTable(collection, type, CREATE_SUB_DOC_TYPE_CALLBACK);
        LOGGER.debug("{}.{} table creation has been scheduled", collection, type);
        Futures.getUnchecked(future);
        LOGGER.debug("{}.{} table creation has been executed", collection, type);
        createdSubDocTypes.add(type);

    } catch (ToroTaskExecutionException ex) {
        //TODO: Change exception
        throw new RuntimeException(ex);
    } finally {
        lock.unlock();
    }
}

From source file:com.continuuity.loom.common.zookeeper.lib.ZKInterProcessReentrantLock.java

private boolean isOwnerOfLock() {
    if (lockNode == null) {
        return false;
    }//from  w ww. j  a  va2 s .c o  m

    return Futures.getUnchecked(zkClient.exists(lockNode)) != null;
}

From source file:org.apache.aurora.scheduler.mesos.SchedulerDriverService.java

@Override
public void abort() {
    Futures.getUnchecked(driverFuture).abort();
}

From source file:co.cask.cdap.gateway.runtime.Main.java

@Override
public void stop() {
    LOG.info("Stopping Gateway...");
    Futures.getUnchecked(
            Services.chainStop(flumeCollector, metricsCollectionService, kafkaClientService, zkClientService));
}

From source file:org.asoem.greyfish.impl.environment.DefaultBasicEnvironment.java

private void executeAgents() {
    final List<ListenableFuture<?>> agentExecutions = Lists.newArrayList();
    for (BasicAgent agent : agents) {
        agentExecutions.add(executorService.submit(agent));
    }//from   w  w w.j a v  a 2s  .  c om
    Futures.getUnchecked(Futures.allAsList(agentExecutions));
}