Examples with LinkedBlockingQueue java.util.concurrent.LinkedBlockingQueue used on opensource projects

Example 46 with LinkedBlockingQueue

use of java.util.concurrent.LinkedBlockingQueue in project mapdb by jankotek.

the class LinkedBlockingQueueTest method testToString.

/**
     * toString contains toStrings of elements
     */
public void testToString() {
    LinkedBlockingQueue q = populatedQueue(SIZE);
    String s = q.toString();
    for (int i = 0; i < SIZE; ++i) {
        assertTrue(s.contains(String.valueOf(i)));
    }
}

Example 47 with LinkedBlockingQueue

use of java.util.concurrent.LinkedBlockingQueue in project mapdb by jankotek.

the class LinkedBlockingQueueTest method testPut.

/**
     * all elements successfully put are contained
     */
public void testPut() throws InterruptedException {
    LinkedBlockingQueue q = new LinkedBlockingQueue(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        Integer x = new Integer(i);
        q.put(x);
        assertTrue(q.contains(x));
    }
    assertEquals(0, q.remainingCapacity());
}

Example 48 with LinkedBlockingQueue

use of java.util.concurrent.LinkedBlockingQueue in project mapdb by jankotek.

the class LinkedBlockingQueueTest method testIterator.

/**
     * iterator iterates through all elements
     */
public void testIterator() throws InterruptedException {
    LinkedBlockingQueue q = populatedQueue(SIZE);
    Iterator it = q.iterator();
    int i;
    for (i = 0; it.hasNext(); i++) assertTrue(q.contains(it.next()));
    assertEquals(i, SIZE);
    assertIteratorExhausted(it);
    it = q.iterator();
    for (i = 0; it.hasNext(); i++) assertEquals(it.next(), q.take());
    assertEquals(i, SIZE);
    assertIteratorExhausted(it);
}

Example 49 with LinkedBlockingQueue

use of java.util.concurrent.LinkedBlockingQueue in project mapdb by jankotek.

the class LinkedBlockingQueueTest method testDrainToWithActivePut.

/**
     * drainTo empties full queue, unblocking a waiting put.
     */
public void testDrainToWithActivePut() throws InterruptedException {
    final LinkedBlockingQueue q = populatedQueue(SIZE);
    Thread t = new Thread(new CheckedRunnable() {

        public void realRun() throws InterruptedException {
            q.put(new Integer(SIZE + 1));
        }
    });
    t.start();
    ArrayList l = new ArrayList();
    q.drainTo(l);
    assertTrue(l.size() >= SIZE);
    for (int i = 0; i < SIZE; ++i) assertEquals(l.get(i), new Integer(i));
    t.join();
    assertTrue(q.size() + l.size() >= SIZE);
}

Example 50 with LinkedBlockingQueue

use of java.util.concurrent.LinkedBlockingQueue in project mapdb by jankotek.

the class LinkedBlockingQueueTest method testDrainTo.

/**
     * drainTo(c) empties queue into another collection c
     */
public void testDrainTo() {
    LinkedBlockingQueue q = populatedQueue(SIZE);
    ArrayList l = new ArrayList();
    q.drainTo(l);
    assertEquals(0, q.size());
    assertEquals(SIZE, l.size());
    for (int i = 0; i < SIZE; ++i) assertEquals(l.get(i), new Integer(i));
    q.add(zero);
    q.add(one);
    assertFalse(q.isEmpty());
    assertTrue(q.contains(zero));
    assertTrue(q.contains(one));
    l.clear();
    q.drainTo(l);
    assertEquals(0, q.size());
    assertEquals(2, l.size());
    for (int i = 0; i < 2; ++i) assertEquals(l.get(i), new Integer(i));
}