Example usage for java.util.concurrent Future get

Introduction

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

Prototype

V get() throws InterruptedException, ExecutionException;

Source Link

Document

Waits if necessary for the computation to complete, and then retrieves its result.

Usage

From source file:com.alibaba.doris.admin.service.failover.node.check.NodeCheckService.java

/**
 * ??//from w  w w.jav a2  s .com
 * 
 * @param timeout ???0?
 * @see java.util.concurrent.ExecutorService#invokeAll(java.util.Collection)
 */
public List<NodeCheckResult> invokeAll(List<? extends NodeCheckTask> tasks, long timeout) {
    List<NodeCheckResult> nodes = new ArrayList<NodeCheckResult>(tasks.size());
    try {
        List<Future<NodeCheckResult>> futures = null;
        if (timeout < 0) {
            futures = executorService.invokeAll(tasks, DEFAULT_TASK_TIMEOUT * tasks.size(),
                    TimeUnit.MILLISECONDS);
        } else {
            futures = executorService.invokeAll(tasks, timeout, TimeUnit.MILLISECONDS);
        }
        for (Future<NodeCheckResult> future : futures) {
            try {
                nodes.add(future.get());
            } catch (ExecutionException e) {
                log.error("failed to check node, skip and continue.", e);
            }
        }
    } catch (InterruptedException e) {
        log.error("failed to check node, skip and continue.", e);
    }
    return nodes;
}

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From source file:com.nebhale.gpxconverter.GoogleMapsAugmenter.java

@Override
public List<Point> augment(List<Point> points) {
    List<Future<List<Point>>> futures = new ArrayList<>();

    for (int i = 0, delay = 0; i < points.size(); i += CHUNK_SIZE, delay++) {
        int max = CHUNK_SIZE + i;
        List<Point> slice = points.subList(i, max < points.size() ? max : points.size());

        futures.add(this.scheduledExecutorService.schedule(
                new PointAugmenter(delay, this.encoder, this.restOperations, slice), delay * 10 * CHUNK_SIZE,
                TimeUnit.MILLISECONDS));
    }//from   w w w .  jav  a 2s  .  c  o  m

    List<Point> augmented = new ArrayList<>(points.size());
    for (Future<List<Point>> future : futures) {
        try {
            augmented.addAll(future.get());
        } catch (ExecutionException | InterruptedException e) {
            throw new RuntimeException(e);
        }
    }
    return augmented;
}

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From source file:idc.storyalbum.fetcher.FilterService.java

public Set<Photo> filter(Set<Photo> photos, Set<String> tags)
        throws ExecutionException, InterruptedException, FlickrException {
    log.info("Removing from {} photos photos without tags {}", photos.size(), tags);
    ExecutorService executorService = Executors.newFixedThreadPool(20);
    List<Future<Pair<Photo, Photo>>> futures = new ArrayList<>();
    for (Photo photo : photos) {
        futures.add(executorService.submit(new FilterTagTask(photo, tags)));
    }//from   ww  w.jav  a  2s  .  c  o  m
    executorService.shutdown();
    Set<Photo> result = new HashSet<>();
    for (Future<Pair<Photo, Photo>> future : futures) {
        Pair<Photo, Photo> photoBooleanPair = future.get();
        Photo photo = photoBooleanPair.getLeft();
        String url;
        try {
            url = photo.getOriginalUrl();
        } catch (Exception e) {
            url = photo.getUrl();
        }
        Photo detailedPhoto = photoBooleanPair.getRight();
        if (detailedPhoto == null) {
            log.info("Filtered {}", url);
            photos.remove(photo);
        } else {
            result.add(detailedPhoto);
        }
    }
    return result;

}

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From source file:org.anhonesteffort.p25.ACAP25.java

private Optional<Double> findActiveControlChannel(Integer systemId, Integer systemWacn, Site site) {
    for (Double channelFreq : site.getControlChannels()) {
        P25ChannelSpec channelSpec = new P25ChannelSpec(channelFreq);
        P25Channel channel = new P25Channel(channelSpec);
        ControlChannelQualifier channelQualifier = new ControlChannelQualifier(controlChannelPool,
                samplesController, channel, systemId, systemWacn);

        try {// ww w .ja va  2  s  .  com

            Future<Optional<Double>> channelQualified = controlChannelPool.submit(channelQualifier);
            Optional<Double> controlFreq = channelQualified.get();

            if (controlFreq.isPresent()) {
                log.info(
                        "found active control channel at " + controlFreq.get() + " for site " + site.getName());
                return Optional.of(controlFreq.get());
            }

        } catch (InterruptedException | ExecutionException e) {
            log.error("error while identifying active control channels, exiting", e);
            java.lang.System.exit(1);
        }
    }

    return Optional.empty();
}

---

From source file:org.openbaton.nfvo.vnfm_reg.tasks.AllocateresourcesTask.java

@Override
protected NFVMessage doWork() throws Exception {

    log.info("Executing task: AllocateResources for VNFR: " + virtualNetworkFunctionRecord.getName());
    log.debug("Verison is: " + virtualNetworkFunctionRecord.getHb_version());
    try {/*w  w w  . j  a  v a2 s .  c  o m*/
        for (VirtualDeploymentUnit vdu : virtualNetworkFunctionRecord.getVdu()) {
            List<Future<List<String>>> ids = new ArrayList<>();
            VimInstance vimInstance = vims.get(vdu.getId());
            if (vimInstance == null)
                throw new NullPointerException(
                        "Our algorithms are too complex, even for us, this is what abnormal IQ means :(");
            try {
                ids.add(resourceManagement.allocate(vdu, virtualNetworkFunctionRecord, vimInstance, userData,
                        keys));

                for (Future<List<String>> id : ids) {
                    id.get();
                }
            } catch (VimException e) {
                e.printStackTrace();
                log.error(e.getMessage());
                LifecycleEvent lifecycleEvent = new LifecycleEvent();
                lifecycleEvent.setEvent(Event.ERROR);
                VNFCInstance vnfcInstance = e.getVnfcInstance();

                if (vnfcInstance != null) {
                    log.info("The VM was not correctly deployed. ExtId is: " + vnfcInstance.getVc_id());
                    log.debug("Details are: " + vnfcInstance);
                    vdu.getVnfc_instance().add(vnfcInstance);
                }
                virtualNetworkFunctionRecord.getLifecycle_event_history().add(lifecycleEvent);
                saveVirtualNetworkFunctionRecord();
                return new OrVnfmErrorMessage(virtualNetworkFunctionRecord, e.getMessage());
            }
        }
    } catch (VimDriverException e) {
        e.printStackTrace();
        log.error(e.getMessage());
        LifecycleEvent lifecycleEvent = new LifecycleEvent();
        lifecycleEvent.setEvent(Event.ERROR);
        virtualNetworkFunctionRecord.getLifecycle_event_history().add(lifecycleEvent);
        virtualNetworkFunctionRecord.setStatus(Status.ERROR);
        saveVirtualNetworkFunctionRecord();
        return new OrVnfmErrorMessage(virtualNetworkFunctionRecord, e.getMessage());
    }

    for (LifecycleEvent event : virtualNetworkFunctionRecord.getLifecycle_event()) {
        if (event.getEvent().ordinal() == Event.ALLOCATE.ordinal()) {
            virtualNetworkFunctionRecord.getLifecycle_event_history().add(event);
            break;
        }
    }
    saveVirtualNetworkFunctionRecord();

    OrVnfmGenericMessage orVnfmGenericMessage = new OrVnfmGenericMessage(virtualNetworkFunctionRecord,
            Action.ALLOCATE_RESOURCES);
    log.debug("Answering to RPC allocate resources: " + orVnfmGenericMessage);
    log.info("Finished task: AllocateResources for VNFR: " + virtualNetworkFunctionRecord.getName());
    return orVnfmGenericMessage;
}

---

From source file:org.openspaces.rest.space.SpaceTaskAPIController.java

private ModelAndView execute(String spaceName, String locators, final SpaceTaskRequest request) {
    GigaSpace space = ControllerUtils.xapCache.get(spaceName, locators);
    final int instanceCount = ControllerUtils.xapCache.getInstances(spaceName);
    ExecutorService svc = Executors.newFixedThreadPool(instanceCount);
    int instances = 0;

    log.fine("request.target=" + request.target);
    if (request.target != null && !request.target.equals("all")) {
        instances = 1;/*  w  w  w  .  j a  v a 2 s .co m*/
    } else {
        instances = instanceCount;
    }

    System.out.println("instances=" + instances);

    List<Callable<Object>> tasks = new ArrayList<Callable<Object>>(instances);
    for (int i = 0; i < instances; i++) {
        Object routing = 0;
        if (request.target != null && request.target.equals("all")) {
            routing = i;
        } else {
            routing = request.target;
        }
        tasks.add(new ScriptCallable(space, request, routing));
    }

    ModelAndView mv = new ModelAndView("jsonView");
    List<Object> model = new ArrayList<Object>(instances);
    try {
        List<Future<Object>> results = svc.invokeAll(tasks);

        for (Future<Object> fut : results) {
            if (fut.get() != null)
                model.add(fut.get());
        }
        mv.addObject("results", model);
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        svc.shutdownNow();
    }
    return mv;
}

---

From source file:com.amazonaws.services.s3.transfer.internal.MultipartUploadCallable.java

private void collectPartETags(final List<Future<PartETag>> futures, final List<PartETag> partETags) {
    for (Future<PartETag> future : futures) {
        try {/* w  w  w.j  a v  a  2s . co m*/
            partETags.add(future.get());
        } catch (Exception e) {
            throw new AmazonClientException("Unable to upload part: " + e.getCause().getMessage(),
                    e.getCause());
        }
    }
}

---

From source file:com.amazonaws.devicefarm.DeviceFarmUploader.java

public Collection<Upload> batchUpload(final List<File> artifacts, final Project project,
        final UploadType uploadType) {

    List<Future<Upload>> futures = Lists.newArrayList();

    // Upload each artifact and create a future for it.
    for (final File file : artifacts) {
        futures.add(uploadExecutor.submit(new Callable<Upload>() {
            @Override/*from  w ww .ja va2s. c  o m*/
            public Upload call() throws Exception {
                return upload(file, project, uploadType);
            }
        }));
    }

    List<Upload> uploads = Lists.newArrayList();

    // Check future results and append the upload results to a list.
    for (Future<Upload> f : futures) {
        try {
            uploads.add(f.get());
        } catch (Exception e) {
            throw new DeviceFarmException(e);
        }
    }

    return uploads;
}

---

From source file:org.fcrepo.kernel.impl.spring.ModeShapeRepositoryFactoryBean.java

/**
 * Attempts to undeploy the repository and shutdown the ModeShape engine on
 * context destroy.//  ww w. j a  v a  2 s  .co  m
 *
 * @throws InterruptedException if interrupted exception occurred
 */
@PreDestroy
public void stopRepository() throws InterruptedException {
    LOGGER.info("Initiating shutdown of ModeShape");
    final String repoName = repository.getName();
    try {
        final Future<Boolean> futureUndeployRepo = modeShapeEngine.undeploy(repoName);
        futureUndeployRepo.get();
        LOGGER.info("Repository {} undeployed.", repoName);
    } catch (final NoSuchRepositoryException e) {
        LOGGER.error("Repository {} unknown, cannot undeploy.", repoName, e);
    } catch (final ExecutionException e) {
        LOGGER.error("Repository {} cannot undeploy.", repoName, e);
    }
    final Future<Boolean> futureShutdownEngine = modeShapeEngine.shutdown();
    try {
        if (futureShutdownEngine.get()) {
            LOGGER.info("ModeShape Engine has shutdown.");
        } else {
            LOGGER.error("ModeShape Engine shutdown failed without an exception, still running.");
        }
    } catch (final ExecutionException e) {
        LOGGER.error("ModeShape Engine shutdown failed.", e);
    }
}

---

From source file:com.amazonaws.services.kinesis.multilang.MessageWriterTest.java

@Test
public void writeCheckpointMessageNoErrorTest() throws IOException, InterruptedException, ExecutionException {
    Future<Boolean> future = this.messageWriter.writeCheckpointMessageWithError("1234", null);
    future.get();
    Mockito.verify(this.stream, Mockito.atLeastOnce()).write(Mockito.any(byte[].class), Mockito.anyInt(),
            Mockito.anyInt());//  w  ww . ja v a  2s  .  c o  m
    Mockito.verify(this.stream, Mockito.atLeastOnce()).flush();
}

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