Example usage for java.util.concurrent ThreadPoolExecutor setRejectedExecutionHandler

Introduction

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

Prototype

public void setRejectedExecutionHandler(RejectedExecutionHandler handler) 

Source Link

Document

Sets a new handler for unexecutable tasks.

Usage

From source file:org.mule.config.pool.DefaultThreadPoolFactory.java

private void configureThreadPoolExecutor(String name, ThreadingProfile tp, ThreadPoolExecutor pool) {
    configureThreadFactory(name, tp, pool);

    if (tp.getRejectedExecutionHandler() != null) {
        pool.setRejectedExecutionHandler(tp.getRejectedExecutionHandler());
    } else {//from ww  w .j ava  2 s  . c o m
        switch (tp.getPoolExhaustedAction()) {
        case ThreadingProfile.WHEN_EXHAUSTED_DISCARD_OLDEST:
            pool.setRejectedExecutionHandler(new ThreadPoolExecutor.DiscardOldestPolicy());
            break;
        case ThreadingProfile.WHEN_EXHAUSTED_RUN:
            pool.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
            break;
        case ThreadingProfile.WHEN_EXHAUSTED_ABORT:
            pool.setRejectedExecutionHandler(new ThreadPoolExecutor.AbortPolicy());
            break;
        case ThreadingProfile.WHEN_EXHAUSTED_DISCARD:
            pool.setRejectedExecutionHandler(new ThreadPoolExecutor.DiscardPolicy());
            break;
        default:
            // WHEN_EXHAUSTED_WAIT
            pool.setRejectedExecutionHandler(new WaitPolicy(tp.getThreadWaitTimeout(), TimeUnit.MILLISECONDS));
            break;
        }
    }
}

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From source file:org.openspaces.admin.internal.admin.DefaultAdmin.java

private ThreadPoolExecutor createThreadPoolExecutor(String threadName, int numberOfThreads,
        final boolean updateSingleThreadId) {
    final ClassLoader correctClassLoader = Thread.currentThread().getContextClassLoader();
    ThreadPoolExecutor executorService = (ThreadPoolExecutor) Executors.newFixedThreadPool(numberOfThreads,
            new GSThreadFactory(threadName, useDaemonThreads) {

                @Override/*w w  w.j ava  2  s .  co m*/
                public Thread newThread(Runnable r) {
                    Thread thread = super.newThread(r);
                    thread.setContextClassLoader(correctClassLoader);
                    if (updateSingleThreadId) {
                        DefaultAdmin.this.executorSingleThreadId = thread.getId();
                    }
                    return thread;
                }
            });
    executorService.setRejectedExecutionHandler(DEFAULT_EVENT_LISTENER_REJECTED_POLICY);
    return executorService;
}

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From source file:org.polymap.core.runtime.UnboundPoolExecutor.java

public static ExecutorService newInstance() {
    final int procs = Runtime.getRuntime().availableProcessors();
    final int maxThreads = procs * MAX_THREADS_PER_PROC;

    // thread factory
    ThreadFactory threadFactory = new ThreadFactory() {
        volatile int threadNumber = 0;

        public Thread newThread(Runnable r) {
            String prefix = "polymap-";
            Thread t = new Thread(r, prefix + threadNumber++);
            t.setDaemon(false);//w w  w  .  j a  v a 2  s.c o  m
            t.setPriority(DEFAULT_THREAD_PRIORITY);
            return t;
        }
    };

    // thread pool
    ThreadPoolExecutor executor = new ThreadPoolExecutor(procs, maxThreads, 180L, TimeUnit.SECONDS,
            new SynchronousQueue<Runnable>(), threadFactory);

    // rejected? -> wait and try again
    executor.setRejectedExecutionHandler(new RejectedExecutionHandler() {
        Random rand = new Random();

        public void rejectedExecution(Runnable r, ThreadPoolExecutor _executor) {
            do {
                try {
                    Thread.sleep(rand.nextInt(1000) + 100);
                } catch (InterruptedException e) {
                }
            } while (_executor.getActiveCount() >= maxThreads);

            _executor.execute(r);
        }
    });

    //executor.allowCoreThreadTimeOut( true );        
    return executor;
}

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