Examples with WatchedEvent org.apache.zookeeper.WatchedEvent used on opensource projects

Example 71 with WatchedEvent

use of org.apache.zookeeper.WatchedEvent in project zookeeper by apache.

the class DataTree method setWatches.

public void setWatches(long relativeZxid, List<String> dataWatches, List<String> existWatches, List<String> childWatches, List<String> persistentWatches, List<String> persistentRecursiveWatches, Watcher watcher) {
    for (String path : dataWatches) {
        DataNode node = getNode(path);
        WatchedEvent e = null;
        if (node == null) {
            watcher.process(new WatchedEvent(EventType.NodeDeleted, KeeperState.SyncConnected, path));
        } else if (node.stat.getMzxid() > relativeZxid) {
            watcher.process(new WatchedEvent(EventType.NodeDataChanged, KeeperState.SyncConnected, path));
        } else {
            this.dataWatches.addWatch(path, watcher);
        }
    }
    for (String path : existWatches) {
        DataNode node = getNode(path);
        if (node != null) {
            watcher.process(new WatchedEvent(EventType.NodeCreated, KeeperState.SyncConnected, path));
        } else {
            this.dataWatches.addWatch(path, watcher);
        }
    }
    for (String path : childWatches) {
        DataNode node = getNode(path);
        if (node == null) {
            watcher.process(new WatchedEvent(EventType.NodeDeleted, KeeperState.SyncConnected, path));
        } else if (node.stat.getPzxid() > relativeZxid) {
            watcher.process(new WatchedEvent(EventType.NodeChildrenChanged, KeeperState.SyncConnected, path));
        } else {
            this.childWatches.addWatch(path, watcher);
        }
    }
    for (String path : persistentWatches) {
        this.childWatches.addWatch(path, watcher, WatcherMode.PERSISTENT);
        this.dataWatches.addWatch(path, watcher, WatcherMode.PERSISTENT);
    }
    for (String path : persistentRecursiveWatches) {
        this.childWatches.addWatch(path, watcher, WatcherMode.PERSISTENT_RECURSIVE);
        this.dataWatches.addWatch(path, watcher, WatcherMode.PERSISTENT_RECURSIVE);
    }
}

Example 72 with WatchedEvent

use of org.apache.zookeeper.WatchedEvent in project zookeeper by apache.

the class PersistentWatcherTest method assertEvent.

private void assertEvent(BlockingQueue<WatchedEvent> events, Watcher.Event.EventType eventType, String path) throws InterruptedException {
    WatchedEvent event = events.poll(5, TimeUnit.SECONDS);
    assertNotNull(event);
    assertEquals(eventType, event.getType());
    assertEquals(path, event.getPath());
}

Example 73 with WatchedEvent

use of org.apache.zookeeper.WatchedEvent 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 74 with WatchedEvent

use of org.apache.zookeeper.WatchedEvent in project zookeeper by apache.

the class PersistentWatcherTest method testDefaultWatcher.

@Test
public void testDefaultWatcher() 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)) {
        zk.addWatch("/a/b", PERSISTENT);
        // clear any events added during client connection
        events.clear();
        internalTestBasic(zk);
    }
}

Example 75 with WatchedEvent

use of org.apache.zookeeper.WatchedEvent in project zookeeper by apache.

the class WatchedEventTest method testCreatingWatchedEventFromInvalidWrapper.

@Test
public void testCreatingWatchedEventFromInvalidWrapper() {
    try {
        WatcherEvent wep = new WatcherEvent(-2342, -252352, "foo");
        new WatchedEvent(wep);
        fail("Was able to create WatchedEvent from bad wrapper");
    } catch (RuntimeException re) {
    // we're good
    }
}