Example usage for java.util.concurrent LinkedBlockingQueue LinkedBlockingQueue

Introduction

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

Prototype

public LinkedBlockingQueue() 

Source Link

Document

Creates a LinkedBlockingQueue with a capacity of Integer#MAX_VALUE .

Usage

From source file:se.vgregion.pubsub.push.impl.DefaultPushSubscriberVerifyTest.java

@Test
@Transactional/*from  w  w  w.  j a v  a 2  s.co m*/
@Rollback
public void verify() throws Exception {
    final LinkedBlockingQueue<HttpRequest> requests = new LinkedBlockingQueue<HttpRequest>();

    server.register("/*", new HttpRequestHandler() {
        @Override
        public void handle(HttpRequest request, HttpResponse response, HttpContext context)
                throws HttpException, IOException {
            requests.add(request);

            response.setEntity(
                    new StringEntity(getQueryParamValue(request.getRequestLine().getUri(), "hub.challenge")));
        }
    });

    subscriber.verify(SubscriptionMode.SUBSCRIBE);

    Assert.assertEquals(1, requests.size());

    HttpRequest actualRequest = requests.poll();
    String requestUri = actualRequest.getRequestLine().getUri();
    Assert.assertEquals("subscribe", getQueryParamValue(requestUri, "hub.mode"));
    Assert.assertEquals(subscriber.getTopic().toString(),
            URLDecoder.decode(getQueryParamValue(requestUri, "hub.topic"), "UTF-8"));
    Assert.assertNotNull(getQueryParamValue(requestUri, "hub.challenge"));
    Assert.assertEquals("123", getQueryParamValue(requestUri, "hub.lease_seconds"));
    Assert.assertEquals(subscriber.getVerifyToken(), getQueryParamValue(requestUri, "hub.verify_token"));
}

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From source file:org.alfresco.extension.bulkimport.impl.BulkImportThreadPoolExecutor.java

public BulkImportThreadPoolExecutor(final ThreadPauser pauser, final int threadPoolSize,
        final int queueCapacity, final long keepAliveTime, final TimeUnit keepAliveTimeUnit) {
    super(threadPoolSize <= 0 ? DEFAULT_THREAD_POOL_SIZE : threadPoolSize, // Core pool size
            threadPoolSize <= 0 ? DEFAULT_THREAD_POOL_SIZE : threadPoolSize, // Max pool size (same as core pool size)
            keepAliveTime <= 0 ? DEFAULT_KEEP_ALIVE_TIME : keepAliveTime, // Keep alive
            keepAliveTimeUnit == null ? DEFAULT_KEEP_ALIVE_TIME_UNIT : keepAliveTimeUnit, // Keep alive units
            new LinkedBlockingQueue<Runnable>(), // Queue of maximum size
            new BulkImportThreadFactory(), // Thread factory
            new ThreadPoolExecutor.AbortPolicy()); // Rejection handler (shouldn't ever be called, due to the use of a semaphone before task submission)

    this.queueCapacity = queueCapacity;
    this.pauser = pauser;

    final int queuePlusPoolSize = (queueCapacity <= 0 ? DEFAULT_QUEUE_CAPACITY : queueCapacity)
            + (threadPoolSize <= 0 ? DEFAULT_THREAD_POOL_SIZE : threadPoolSize);
    this.queueSemaphore = new Semaphore(queuePlusPoolSize);

    if (debug(log))
        debug(log, "Created new bulk import thread pool." + " Thread Pool Size="
                + (threadPoolSize <= 0 ? DEFAULT_THREAD_POOL_SIZE : threadPoolSize) + ", Queue Capacity="
                + ((queueCapacity <= 0 ? DEFAULT_QUEUE_CAPACITY : queueCapacity) + 2) + ", Keep Alive Time="
                + (keepAliveTime <= 0 ? DEFAULT_KEEP_ALIVE_TIME : keepAliveTime) + " "
                + String.valueOf(keepAliveTimeUnit == null ? DEFAULT_KEEP_ALIVE_TIME_UNIT : keepAliveTimeUnit));
}

---

From source file:metlos.executors.batch.BatchCpuThrottlingExecutorTest.java

@Test
public void maxUsage_SingleThreaded() throws Exception {
    NamingThreadFactory factory = new NamingThreadFactory();
    ThreadPoolExecutor e = new ThreadPoolExecutor(1, 1, 0, TimeUnit.DAYS, new LinkedBlockingQueue<Runnable>(),
            factory);/* ww  w.ja va  2s  .  c  o  m*/
    e.prestartAllCoreThreads();

    List<Future<?>> payloadResults = new ArrayList<Future<?>>();

    long startTime = System.nanoTime();

    //create load
    for (int i = 0; i < NOF_JOBS; ++i) {
        Future<?> f = e.submit(new Payload());
        payloadResults.add(f);
    }

    //wait for it all to finish
    for (Future<?> f : payloadResults) {
        f.get();
    }

    long endTime = System.nanoTime();

    long time = endTime - startTime;
    LOG.info("MAX Singlethreaded test took " + (time / 1000.0 / 1000.0) + "ms");

    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    long cpuTime = 0;
    for (Thread t : factory.createdThreads) {
        long threadCpuTime = threadBean.getThreadCpuTime(t.getId());
        LOG.info(t.getName() + ": " + threadCpuTime + "ns");
        cpuTime += threadCpuTime;
    }

    float actualUsage = (float) cpuTime / time;

    LOG.info("MAX Singlethreaded overall usage: " + actualUsage);
}

---

From source file:com.dsclab.loader.app.Loader.java

public static void load(Configs prop)
        throws SQLException, ClassNotFoundException, InterruptedException, ExecutionException {
    int readThread = prop.getReadThread();
    int writeThread = prop.getWriteThread();
    ExecutorService readExecutor = Executors.newFixedThreadPool(readThread);
    ExecutorService writeExecutor = Executors.newFixedThreadPool(writeThread);
    LOG.info("Start load: writeThread:" + writeThread + ", readThread:" + readThread);
    BlockingQueue<List<String>> contentQueue = new LinkedBlockingQueue<>();

    int tableCount = tableTask.size();
    int sum = 0;//from  w w w.  ja v  a  2 s . c o  m
    for (int i = 0; i < tableCount; i++) {
        sum = sum + tableTask.get(i).getTaskSqlList().size();
    }
    for (int i = 0; i < sum; i++) {
        readExecutor.submit(new ProducerThread(prop.getInputURL(), contentQueue));
        writeExecutor.submit(new ConsumerThread(prop.getOutputURL(), contentQueue));
    }

    readExecutor.shutdown();
    readExecutor.awaitTermination(Long.MAX_VALUE, TimeUnit.DAYS);
    System.out.println("[CHIA7712] read threads end");
    writeExecutor.shutdown();
    writeExecutor.awaitTermination(Long.MAX_VALUE, TimeUnit.DAYS);
    System.out.println("[CHIA7712] write threads end");
}

---

From source file:com.nextgis.maplib.display.SimpleFeatureRenderer.java

@Override
public void runDraw(final GISDisplay display) {
    GeoEnvelope env = display.getBounds();
    final VectorLayer vectorLayer = (VectorLayer) mLayer;
    GeoEnvelope layerEnv = vectorLayer.getExtents();

    if (!env.intersects(layerEnv)) {
        vectorLayer.onDrawFinished(vectorLayer.getId(), 1);
        return;//from ww  w  .  j  a  v  a 2  s . c o  m
    }

    //add drawing routine
    final List<VectorCacheItem> cache = vectorLayer.getVectorCache();

    //TODO: more than one thread for drawing (divide the geometry cache array on several parts)
    //TODO: think about display syncronization in drawing points/lines/polygons

    mDrawThreadPool = new ThreadPoolExecutor(1, 1, KEEP_ALIVE_TIME, KEEP_ALIVE_TIME_UNIT,
            new LinkedBlockingQueue<Runnable>(), new RejectedExecutionHandler() {
                @Override
                public void rejectedExecution(Runnable r, ThreadPoolExecutor executor) {
                    try {
                        executor.getQueue().put(r);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                        //throw new RuntimeException("Interrupted while submitting task", e);
                    }
                }
            });

    if (cache.size() == 0) {
        vectorLayer.onDrawFinished(vectorLayer.getId(), 1);
        return;
    }

    mDrawThreadPool.execute(new Runnable() {
        @Override
        public void run() {
            android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_BACKGROUND);

            for (int i = 0; i < cache.size(); i++) {
                VectorCacheItem item = cache.get(i);

                GeoGeometry geometry = item.getGeoGeometry();
                mStyle.onDraw(geometry, display);

                synchronized (mLayer) {
                    float percent = (float) i / cache.size();
                    vectorLayer.onDrawFinished(vectorLayer.getId(), percent);
                }

                vectorLayer.onDrawFinished(vectorLayer.getId(), 1);
                //Log.d(TAG, "percent: " + percent + " complete: " + mDrawThreadPool.getCompletedTaskCount() + " task count: " + mDrawThreadPool.getTaskCount());
            }
        }
    });
}

---

From source file:com.linuxbox.enkive.message.search.TaskPoolAsyncMessageSearchService.java

public TaskPoolAsyncMessageSearchService(int corePoolSize, int maxPoolSize, int keepAliveTime) {
    BlockingQueue<Runnable> queue = new LinkedBlockingQueue<Runnable>();
    searchExecutor = new CancellableProcessExecutor(corePoolSize, maxPoolSize, keepAliveTime, TimeUnit.SECONDS,
            queue);/*from   w  w w.  j av a  2 s . co  m*/
}

---

From source file:org.geoserver.wps.executor.DefaultProcessManager.java

public void setMaxAsynchronousProcesses(int maxAsynchronousProcesses) {
    if (asynchService == null) {
        // create a fixed size pool. If we allow a delta between core and max 
        // the pool will create new threads only if the queue is full, but the linked queue never is
        asynchService = new ThreadPoolExecutor(maxAsynchronousProcesses, maxAsynchronousProcesses, 0L,
                TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>());
    } else {//from  w  w w .  j  av  a 2  s  .c  om
        asynchService.setCorePoolSize(maxAsynchronousProcesses);
        asynchService.setMaximumPoolSize(maxAsynchronousProcesses);
    }
}

---

From source file:se.vgregion.pubsub.push.impl.DefaultPushSubscriberPublishTest.java

@Test
public void publish() throws Exception {

    subscriber = new DefaultPushSubscriber(UnitTestConstants.TOPIC, buildTestUrl("/"), UnitTestConstants.FUTURE,
            UnitTestConstants.UPDATED1, 100, "verify", UnitTestConstants.SECRET, true);

    final LinkedBlockingQueue<HttpRequest> issuedRequests = new LinkedBlockingQueue<HttpRequest>();
    final LinkedBlockingQueue<byte[]> issuedRequestBodies = new LinkedBlockingQueue<byte[]>();
    server.register("/*", new HttpRequestHandler() {
        @Override/*from  w  w w . j av a  2  s .c  o m*/
        public void handle(HttpRequest request, HttpResponse response, HttpContext context)
                throws HttpException, IOException {
            issuedRequests.add(request);

            HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity();
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            entity.writeTo(buffer);
            issuedRequestBodies.add(buffer.toByteArray());
        }
    });

    Feed feed = new FeedBuilder(ContentType.ATOM).id("e1")
            .entry(new EntryBuilder().id("f1").updated(new DateTime()).build())
            .entry(new EntryBuilder().id("f2").updated(UnitTestConstants.UPDATED1.minusHours(1)).build())
            .build();

    subscriber.publish(feed, null);

    // subscriber should be updated
    Assert.assertEquals(new DateTime(), subscriber.getLastUpdated());

    HttpRequest request = issuedRequests.poll(10000, TimeUnit.MILLISECONDS);
    Assert.assertNotNull(request);
    Assert.assertEquals(ContentType.ATOM.toString(), request.getFirstHeader("Content-Type").getValue());

    // verify HMAC header
    Assert.assertEquals("sha1=1356b52665408a17af46803a7988e48d40d1fb75",
            request.getFirstHeader("X-Hub-Signature").getValue());

    // verify content
    Assert.assertTrue(request instanceof HttpEntityEnclosingRequest);

    HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity();

    Assert.assertNotNull(entity);

    Document actualAtom = new Builder().build(new ByteArrayInputStream(issuedRequestBodies.poll()));

    Assert.assertEquals(1, actualAtom.getRootElement().getChildElements("entry", Namespaces.ATOM).size());

}

---

From source file:rk.java.compute.cep.ComputeService.java

public ComputeService(final int numberOfTickSources, final int threadPoolSize, IPriceEventSink eventBus) {
    this(new LinkedBlockingQueue<IPriceTick>(), numberOfTickSources, eventBus);
    executorService = Executors.newFixedThreadPool(threadPoolSize);
    ecs = new ExecutorCompletionService<StopWatch>(executorService);
}

---

From source file:ninja.eivind.hotsreplayuploader.services.UploaderService.java

public UploaderService() throws IOException {
    logger.info("Instantiating " + getClass().getSimpleName());
    uploadQueue = new LinkedBlockingQueue<>();
    files = FXCollections.observableArrayList();
    setExecutor(Executors.newCachedThreadPool());
    logger.info("Instantiated " + getClass().getSimpleName());
}

---

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