/** Test for issue #39 */
@Test
public void testIsMapKeyLocked() throws InterruptedException {
HazelcastClient hClient = getHazelcastClient();
final IMap map = hClient.getMap("testIsMapKeyLocked");
assertFalse(map.isLocked("key"));
map.lock("key");
assertTrue(map.isLocked("key"));
final CountDownLatch latch = new CountDownLatch(1);
Thread thread =
new Thread(
new Runnable() {
public void run() {
assertTrue(map.isLocked("key"));
try {
while (map.isLocked("key")) {
Thread.sleep(100);
}
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
latch.countDown();
}
});
thread.start();
Thread.sleep(100);
map.unlock("key");
assertTrue(latch.await(3, TimeUnit.SECONDS));
}
@Test
public void lockMapKey() throws InterruptedException {
HazelcastClient hClient = getHazelcastClient();
final IMap<String, String> map = hClient.getMap("lockMapKey");
final CountDownLatch latch = new CountDownLatch(1);
map.put("a", "b");
Thread.sleep(10);
map.lock("a");
new Thread(
new Runnable() {
public void run() {
map.lock("a");
latch.countDown();
}
})
.start();
Thread.sleep(10);
assertEquals(1, latch.getCount());
map.unlock("a");
assertTrue(latch.await(10, TimeUnit.SECONDS));
}
@Test
public void tryLock() throws InterruptedException {
HazelcastClient hClient = getHazelcastClient();
final IMap<String, String> map = hClient.getMap("tryLock");
final CountDownLatch latch = new CountDownLatch(3);
map.put("1", "A");
map.lock("1");
new Thread(
new Runnable() {
public void run() {
if (!map.tryLock("1", 100, TimeUnit.MILLISECONDS)) {
latch.countDown();
}
if (!map.tryLock("1")) {
latch.countDown();
}
if (map.tryLock("2")) {
latch.countDown();
}
}
})
.start();
assertTrue(latch.await(10, TimeUnit.SECONDS));
}