Example usage for java.util.concurrent ThreadPoolExecutor ThreadPoolExecutor

Introduction

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

Prototype

public ThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit,
        BlockingQueue<Runnable> workQueue, RejectedExecutionHandler handler)

Source Link

Document

Creates a new ThreadPoolExecutor with the given initial parameters and Executors#defaultThreadFactory default thread factory .

Usage

From source file:org.dimitrovchi.conf.service.AbstractService.java

public AbstractService(P parameters) {
    this.parameters = parameters;
    final int threadCount = parameters.threadCount() == 0 ? Runtime.getRuntime().availableProcessors()
            : parameters.threadCount();/* w  ww .  java 2 s  . com*/
    this.executor = new ThreadPoolExecutor(threadCount, parameters.threadCount(), parameters.keepAlive(),
            parameters.timeUnit(), parameters.queueType().createBlockingQueue(parameters.queueSize()),
            new ThreadPoolExecutor.CallerRunsPolicy());
}

From source file:com.dangdang.ddframe.job.util.concurrent.ExecutorServiceObject.java

public ExecutorServiceObject(final String namingPattern, final int threadSize) {
    workQueue = new LinkedBlockingQueue<>();
    threadPoolExecutor = new ThreadPoolExecutor(threadSize, threadSize, 5L, TimeUnit.MINUTES, workQueue,
            new BasicThreadFactory.Builder().namingPattern(Joiner.on("-").join(namingPattern, "%s")).build());
    threadPoolExecutor.allowCoreThreadTimeOut(true);
}

From source file:edu.wpi.checksims.util.threading.ParallelAlgorithm.java

/**
 * @param threads Number of threads to be used for execution
 *//*from   w ww.  j a v a 2 s .c  o  m*/
public static void setThreadCount(int threads) {
    checkArgument(threads > 0,
            "Attempted to set number of threads to " + threads + ", but must be positive integer!");

    threadCount = threads;
    executor.shutdown();
    // Set up the executor again with the new thread count
    executor = new ThreadPoolExecutor(threadCount, threadCount, 1, TimeUnit.SECONDS,
            new LinkedBlockingQueue<>(), new ThreadPoolExecutor.AbortPolicy());
}

From source file:org.apache.synapse.transport.nhttp.util.NativeWorkerPool.java

public NativeWorkerPool(int core, int max, int keepAlive, int queueLength, String threadGroupName,
        String threadGroupId) {/*from   w  w w. j a  v  a2 s  . com*/

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

From source file:org.apache.axis2.transport.nhttp.util.BackportWorkerPool.java

public BackportWorkerPool(int core, int max, int keepAlive, int queueLength, String threadGroupName,
        String threadGroupId) {//ww w.  j  a  va  2 s .  c  o m

    executor = new ThreadPoolExecutor(core, max, keepAlive, TimeUnit.SECONDS,
            queueLength == -1 ? new LinkedBlockingQueue() : new LinkedBlockingQueue(queueLength),
            new BackportThreadFactory(new ThreadGroup(threadGroupName), threadGroupId));
}

From source file:com.kurento.kmf.content.internal.ContentApiExecutorService.java

/**
 * Post constructor method; instantiate thread pool.
 * //w w w  .j a  v a 2 s.c  om
 * @throws Exception
 *             Error in the creation of the thread pool
 */
@PostConstruct
public void afterPropertiesSet() throws Exception {
    executor = new ThreadPoolExecutor(config.getPoolCoreSize(), config.getPoolMaxSize(),
            config.getPoolExecutionTimeout(), TimeUnit.MILLISECONDS,
            new LinkedBlockingQueue<Runnable>(config.getPoolMaxQueueSize()), new RejectedExecutionHandler() {
                @Override
                public void rejectedExecution(Runnable r, ThreadPoolExecutor executor) {
                    ((RejectableRunnable) r).onExecutionRejected();
                }
            });
}

From source file:org.muehleisen.hannes.taxiapp.TaxiRoute.java

@Override
public void run() {
    log.info(this.getClass().getSimpleName() + " starting...");

    BlockingQueue<Runnable> taskQueue = new LinkedBlockingDeque<Runnable>(100);
    ExecutorService ex = new ThreadPoolExecutor(Runtime.getRuntime().availableProcessors(),
            Runtime.getRuntime().availableProcessors(), Integer.MAX_VALUE, TimeUnit.DAYS, taskQueue,
            new ThreadPoolExecutor.DiscardPolicy());
    // create rainbow table for driver lookup
    log.info("Creating driver license rainbow table.");
    RouteLogEntry.initLrt();/* w  ww  .ja  v a2 s  .c o m*/

    // bring up routing service
    log.info("Bringing up OTP Graph Service from '" + graph + "'.");
    GraphServiceImpl graphService = new GraphServiceImpl();
    graphService.setPath(graph);
    graphService.startup();
    ps = new RetryingPathServiceImpl(graphService, new EarliestArrivalSPTService());

    // read taxi files
    log.info("Reading taxi files from '" + taxilog + "'.");
    Collection<File> files = FileUtils.listFiles(new File(taxilog), new SuffixFileFilter(".csv.zip"),
            TrueFileFilter.INSTANCE);
    for (File f : files) {
        log.info("Reading '" + f + "'.");
        try {
            ZipInputStream z = new ZipInputStream(new FileInputStream(f));
            z.getNextEntry(); // ZIP files have many entries. In this case,
                              // only one
            BufferedReader r = new BufferedReader(new InputStreamReader(z));
            r.readLine(); // header
            String line = null;
            while ((line = r.readLine()) != null) {
                RouteLogEntry rle = new RouteLogEntry(line);
                if (!rle.hasGeo()) {
                    continue;
                }
                while (taskQueue.remainingCapacity() < 1) {
                    Thread.sleep(100);
                }
                ex.submit(new RouteTask(rle));
            }
            r.close();
            z.close();
        } catch (Exception e) {
            log.error("Failed to read taxi file from '" + taxilog + "'.", e);
        }
    }
    ex.shutdown();
    try {
        ex.awaitTermination(Integer.MAX_VALUE, TimeUnit.DAYS);
    } catch (InterruptedException e) {
        // ...
    }
    log.info(deliveries);
}

From source file:com.pinterest.terrapin.storage.ReaderFactory.java

public ReaderFactory(PropertiesConfiguration configuration, FileSystem hadoopFs) {
    this.configuration = configuration;
    this.hadoopFs = hadoopFs;
    int numReaderThreads = this.configuration.getInt(Constants.READER_THREAD_POOL_SIZE, 200);
    ExecutorService threadPool = new ThreadPoolExecutor(numReaderThreads, numReaderThreads, 0, TimeUnit.SECONDS,
            new LinkedBlockingDeque<Runnable>(10000),
            new ThreadFactoryBuilder().setDaemon(false).setNameFormat("reader-pool-%d").build());
    this.readerFuturePool = new ExecutorServiceFuturePool(threadPool);
}

From source file:org.efaps.esjp.common.background.Service_Base.java

/**
 * Instantiates a new service_ base.//from   w  w  w  .ja v a  2  s.  c om
 */
protected Service_Base() {
    final int corePoolSize = 2;
    final int maxdPoolSize = 10;

    this.executorService = new ThreadPoolExecutor(corePoolSize, maxdPoolSize, 0L, TimeUnit.MILLISECONDS,
            new LinkedBlockingQueue<Runnable>(),
            new BasicThreadFactory.Builder().namingPattern("eFaps-BackgroundProcess-%s").build());
}

From source file:com.kurento.kmf.thrift.internal.ThriftInterfaceExecutorService.java

/**
 * Post constructor method; instantiate thread pool.
 * //from  ww  w. j  a v  a 2 s.c  o  m
 * @throws Exception
 *             Error in the creation of the thread pool
 */
@PostConstruct
public void afterPropertiesSet() throws Exception {
    executor = new ThreadPoolExecutor(config.getPoolCoreSize(), config.getPoolMaxSize(),
            config.getPoolExecutionTimeout(), TimeUnit.MILLISECONDS,
            new LinkedBlockingQueue<Runnable>(config.getPoolMaxQueueSize()), new RejectedExecutionHandler() {

                @Override
                public void rejectedExecution(Runnable r, ThreadPoolExecutor exec) {
                    log.warn("Execution is blocked because the thread bounds and queue capacities are reached");
                }
            });
}