Examples of java.util.concurrent.BlockingQueue.take()

Class java.util.concurrent.BlockingQueue

Examples of java.util.concurrent.BlockingQueue.take()

java.util.concurrent.BlockingQueue.take()
Retrieves and removes the head of this queue, waiting if necessary until an element becomes available. @return the head of this queue @throws InterruptedException if interrupted while waiting

        Thread taker=new Thread() {


            public void run() {
                try {
                    System.out.println("taking an element from the queue");
                    queue.take();
                    System.out.println("clear");
                }
                catch(InterruptedException e) {                  
                }
            }

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      BlockingQueue queue = address2key.get(address);
      try {
         maxNumberInvariant.readLock().lock();
         Object result;
         try {
            result = queue.take();
         } finally {
            maxNumberInvariant.readLock().unlock();
         }
         exitingNumberOfKeys.decrementAndGet();
         return result;

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               keyProducerStartLatch.open();
               // our address might have been removed from the consistent hash
               if (!address.equals(getAddressForKey(address)))
                  throw new IllegalStateException("Address " + address + " is no longer in the cluster");


               result = queue.take();
            }
         } finally {
            maxNumberInvariant.readLock().unlock();
         }
         exitingNumberOfKeys.decrementAndGet();

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      BlockingQueue queue = address2key.get(address);
      try {
         maxNumberInvariant.readLock().lock();
         Object result;
         try {
            result = queue.take();
         } finally {
            maxNumberInvariant.readLock().unlock();
         }
         exitingNumberOfKeys.decrementAndGet();
         return result;

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        executor.execute(new CheckedRunnable() {
            public void realRun() throws InterruptedException {
                threadsStarted.await();
                assertEquals(0, q.remainingCapacity());
                assertSame(one, q.take());
            }
        });


        joinPool(executor);
    }

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        final CountDownLatch threadStarted = new CountDownLatch(1);
        Thread t = newStartedThread(new CheckedRunnable() {
            public void realRun() {
                threadStarted.countDown();
                try {
                    q.take();
                    shouldThrow();
                } catch (InterruptedException success) {
                }
                assertFalse(Thread.interrupted());
            }

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        final BlockingQueue q = emptyCollection();
        Thread t = newStartedThread(new CheckedRunnable() {
            public void realRun() {
                Thread.currentThread().interrupt();
                try {
                    q.take();
                    shouldThrow();
                } catch (InterruptedException success) {
                }
                assertFalse(Thread.interrupted());
            }

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            }
        });


        await(pleaseTake);
        assertEquals(0, q.remainingCapacity());
        assertEquals(0, q.take());


        await(pleaseInterrupt);
        assertThreadStaysAlive(t);
        t.interrupt();
        awaitTermination(t);

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     */
    @Test
    public void testTake() throws InterruptedException {
        BlockingQueue q = populatedQueue(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            assertEquals(i, q.take());
        }
    }


    /**
     * Take removes existing elements until empty, then blocks interruptibly

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        final BlockingQueue q = populatedQueue(SIZE);
        final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
        Thread t = newStartedThread(new CheckedRunnable() {
            public void realRun() throws InterruptedException {
                for (int i = 0; i < SIZE; ++i) {
                    assertEquals(i, q.take());
                }


                Thread.currentThread().interrupt();
                try {
                    q.take();

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