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:com.espertech.esperio.db.core.ExecutorServices.java

public ExecutorServices(EPServiceProviderSPI spi, Map<String, Executor> workQueue) {
    this.services = new HashMap<String, ExecutorService>();

    for (Map.Entry<String, Executor> entry : workQueue.entrySet()) {
        Executor queue = entry.getValue();

        if (queue.getNumThreads() <= 0) {
            continue;
        }//  ww w.  j  a v  a2s.  c  om

        LinkedBlockingQueue<Runnable> runnableQueue = new LinkedBlockingQueue<Runnable>();
        ExecutorService service = new ThreadPoolExecutor(queue.getNumThreads(), queue.getNumThreads(), 1000,
                TimeUnit.SECONDS, runnableQueue);
        services.put(entry.getKey(), service);
    }

    try {
        spi.getContext().bind("EsperIODBAdapter/ExecutorServices", this);
    } catch (NamingException e) {
        log.error("Error binding executor service: " + e.getMessage(), e);
    }
}

From source file:edu.iu.harp.schstatic.TaskMonitor.java

TaskMonitor(int taskID, T task, Submitter<I> submitter, int numTasks, Semaphore barrier1) {
    this.taskObject = task;
    this.taskObject.setTaskID(taskID);
    this.taskObject.setNumTasks(numTasks);
    this.taskObject.setSubmitter(submitter);
    this.inputQueue = new LinkedBlockingQueue<>();
    this.outputQueue = new LinkedBlockingQueue<>();
    this.inputCount = 0;
    this.outputCount = 0;
    this.errorCount = 0;
    this.barrier1 = barrier1;
    this.barrier2 = new Semaphore(0);
}

From source file:edu.iu.harp.schdynamic.DynamicScheduler.java

public DynamicScheduler(List<T> tasks) {
    inputQueue = new LinkedBlockingDeque<>();
    outputQueue = new LinkedBlockingQueue<>();
    threads = null;/*from w  ww  .  j a va  2  s.  com*/
    inputCount = 0;
    outputCount = 0;
    errorCount = 0;
    isRunning = false;
    isPausing = false;
    barrier1 = new Semaphore(0);
    numTaskMonitors = tasks.size();
    this.tasks = tasks;
    taskMonitors = new ArrayList<>();
    for (T task : tasks) {
        taskMonitors.add(new TaskMonitor<>(inputQueue, outputQueue, task, barrier1));
    }
}

From source file:org.apache.ambari.event.AsyncDispatcher.java

public AsyncDispatcher() {
    this(new HashMap<Class<? extends Enum>, EventHandler>(), new LinkedBlockingQueue<Event>());
}

From source file:ok.MyService2.java

@Override
protected Task<BlockingQueue> createTask() {
    final Task<BlockingQueue> task;
    task = new Task<BlockingQueue>() {

        @Override//from  ww w  .  j  ava2  s.  co  m
        protected BlockingQueue call() throws Exception {
            BlockingQueue result = new LinkedBlockingQueue<String>();

            PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
            cm.setMaxTotal(100);

            CloseableHttpClient httpclient = HttpClients.custom().setConnectionManager(cm).build();
            try {
                ExecutorService executor = Executors.newFixedThreadPool(sites.size());
                List<Future<String>> results = new ArrayList<Future<String>>();
                for (int i = 0; i < sites.size(); i++) {
                    HttpGet httpget = new HttpGet(sites.get(i));
                    Callable worker = new MyCallable(httpclient, httpget);
                    Future<String> res = executor.submit(worker);
                    results.add(res);
                    // String url = hostList[i];
                    //   Runnable worker = new MyRunnable(url);
                    //   executor.execute(worker);
                    //   executor.submit(null);

                }
                executor.shutdown();
                // Wait until all threads are finish
                //                   while (!executor.isTerminated()) {
                //
                //                   }
                for (Future<String> element : results) {
                    result.add(element.get());
                }
                System.out.println("\nFinished all threads");

            } finally {
                httpclient.close();
            }
            return result;
        }

    };
    return task;
}

From source file:org.apache.axis2.transport.base.threads.NativeWorkerPool.java

public NativeWorkerPool(int core, int max, int keepAlive, int queueLength, String threadGroupName,
        String threadGroupId) {/* w  ww. j  av  a2s.  c  o m*/

    if (log.isDebugEnabled()) {
        log.debug("Using native util.concurrent package..");
    }
    blockingQueue = (queueLength == -1 ? new LinkedBlockingQueue<Runnable>()
            : new LinkedBlockingQueue<Runnable>(queueLength));
    executor = new Axis2ThreadPoolExecutor(core, max, keepAlive, TimeUnit.SECONDS, blockingQueue,
            new NativeThreadFactory(new ThreadGroup(threadGroupName), threadGroupId));
}

From source file:com.mnt.base.mail.AsyncMailHelper.java

private AsyncMailHelper() {
    mailQueue = new LinkedBlockingQueue<MailHolder>();
}

From source file:de.thischwa.pmcms.view.renderer.ExportThreadPoolController.java

ExportThreadPoolController(int threadMaxCountPerCore) {
    int threadPoolSize = 1;
    if (threadMaxCountPerCore != 0)
        threadPoolSize = threadMaxCountPerCore * Constants.CPU_COUNT;
    threadPool = new ThreadPool(threadPoolSize, threadPoolSize, 0L, TimeUnit.MILLISECONDS,
            new LinkedBlockingQueue<Runnable>());

    logger.info("ExportThreadPoolController thread pool size initialized with: " + threadPoolSize);
}

From source file:com.tobrun.android.notify.lib.NotifyManager.java

@Override
public void onCreate(final Bundle savedInstanceState) {
    // will not be called during a configuration change
    super.onCreate(savedInstanceState);
    setRetainInstance(true);/*from   w  w w  .  j  ava 2 s .  co m*/
    mQueue = new LinkedBlockingQueue<Notify>();
    mHandler = new Handler();
}

From source file:com.adobe.plugins.FastCanvas.java

@Override
public void initialize(CordovaInterface cordova, CordovaWebView webView) {
    Log.i("CANVAS", "FastCanvas initialize");
    super.initialize(cordova, webView);
    mMessageQueue = new LinkedBlockingQueue<FastCanvasMessage>();
    mActivity = cordova.getActivity();/*from   w ww  .j  ava  2  s . co m*/
    mCanvasView = new FastCanvasView(mActivity);
    theCanvas = this;
    mCordovaView = webView;
    initView();
}