Examples with PERSISTENT org.apache.zookeeper.AddWatchMode.PERSISTENT used on opensource projects

Example 1 with PERSISTENT

use of org.apache.zookeeper.AddWatchMode.PERSISTENT in project zookeeper by apache.

the class PersistentWatcherTest method testBasicAsync.

@Test
public void testBasicAsync() throws IOException, InterruptedException, KeeperException {
    CountdownWatcher watcher = new CountdownWatcher() {

        @Override
        public synchronized void process(WatchedEvent event) {
            super.process(event);
            events.add(event);
        }
    };
    try (ZooKeeper zk = createClient(watcher, hostPort)) {
        final CountDownLatch latch = new CountDownLatch(1);
        AsyncCallback.VoidCallback cb = (rc, path, ctx) -> {
            if (rc == KeeperException.Code.OK.intValue()) {
                latch.countDown();
            }
        };
        zk.addWatch("/a/b", persistentWatcher, PERSISTENT, cb, null);
        assertTrue(latch.await(5, TimeUnit.SECONDS));
        // clear any events added during client connection
        events.clear();
        internalTestBasic(zk);
    }
}

Example 2 with PERSISTENT

use of org.apache.zookeeper.AddWatchMode.PERSISTENT in project zookeeper by apache.

the class PersistentWatcherTest method testAsyncDefaultWatcher.

@Test
public void testAsyncDefaultWatcher() throws IOException, InterruptedException, KeeperException {
    try (ZooKeeper zk = createClient(new CountdownWatcher(), hostPort)) {
        final CountDownLatch latch = new CountDownLatch(1);
        AsyncCallback.VoidCallback cb = (rc, path, ctx) -> {
            if (rc == KeeperException.Code.OK.intValue()) {
                latch.countDown();
            }
        };
        zk.addWatch("/a/b", persistentWatcher, PERSISTENT, cb, null);
        assertTrue(latch.await(5, TimeUnit.SECONDS));
        internalTestBasic(zk);
    }
}

Example 3 with PERSISTENT

use of org.apache.zookeeper.AddWatchMode.PERSISTENT in project zookeeper by apache.

the class PersistentWatcherTest method testNullWatch.

@Test
public void testNullWatch() throws IOException, InterruptedException, KeeperException {
    try (ZooKeeper zk = createClient(new CountdownWatcher(), hostPort)) {
        assertThrows(IllegalArgumentException.class, () -> {
            zk.addWatch("/a/b", null, PERSISTENT);
        });
        assertThrows(IllegalArgumentException.class, () -> {
            AsyncCallback.VoidCallback cb = (rc, path, ctx) -> {
            };
            zk.addWatch("/a/b", null, PERSISTENT, cb, null);
        });
    }
}