Examples with EventType org.apache.zookeeper.Watcher.Event.EventType used on opensource projects

Example 1 with EventType

use of org.apache.zookeeper.Watcher.Event.EventType in project pinpoint by naver.

the class ZookeeperUtils method isConnectedEvent.

public static boolean isConnectedEvent(WatchedEvent event) {
    KeeperState state = event.getState();
    EventType eventType = event.getType();
    return isConnectedEvent(state, eventType);
}

Example 2 with EventType

use of org.apache.zookeeper.Watcher.Event.EventType in project pinpoint by naver.

the class ZookeeperUtils method isDisconnectedEvent.

public static boolean isDisconnectedEvent(WatchedEvent event) {
    KeeperState state = event.getState();
    EventType eventType = event.getType();
    return isDisconnectedEvent(state, eventType);
}

Example 3 with EventType

use of org.apache.zookeeper.Watcher.Event.EventType in project pinpoint by naver.

the class ZookeeperClusterDataManager method process.

@SuppressWarnings("deprecation")
@Override
public void process(WatchedEvent event) {
    logger.info("Handle Zookeeper Event({}) started.", event);
    KeeperState state = event.getState();
    EventType eventType = event.getType();
    String path = event.getPath();
    // when this happens, ephemeral node disappears
    // reconnects automatically, and process gets notified for all events
    boolean result = false;
    if (state == KeeperState.SyncConnected || state == KeeperState.NoSyncConnected) {
        if (eventType == EventType.NodeChildrenChanged) {
            result = handleNodeChildrenChanged(path);
        } else if (eventType == EventType.NodeDeleted) {
            result = handleNodeDeleted(path);
        } else if (eventType == EventType.NodeDataChanged) {
            result = handleNodeDataChanged(path);
        }
    }
    if (result) {
        logger.info("Handle Zookeeper Event({}) completed.", event);
    } else {
        logger.info("Handle Zookeeper Event({}) failed.", event);
    }
}

Example 4 with EventType

use of org.apache.zookeeper.Watcher.Event.EventType in project zookeeper by apache.

the class WatchedEventTest method testCreatingWatchedEvent.

@Test
public void testCreatingWatchedEvent() {
    // EventWatch is a simple, immutable type, so all we need to do
    // is make sure we can create all possible combinations of values.
    EnumSet<EventType> allTypes = EnumSet.allOf(EventType.class);
    EnumSet<KeeperState> allStates = EnumSet.allOf(KeeperState.class);
    WatchedEvent we;
    for (EventType et : allTypes) {
        for (KeeperState ks : allStates) {
            we = new WatchedEvent(et, ks, "blah");
            assertEquals(et, we.getType());
            assertEquals(ks, we.getState());
            assertEquals("blah", we.getPath());
        }
    }
}

Example 5 with EventType

use of org.apache.zookeeper.Watcher.Event.EventType in project zookeeper by apache.

the class RemoveWatchesCmdTest method verifyRemoveAnyWatches.

private void verifyRemoveAnyWatches(boolean local) throws Exception {
    final Map<String, List<EventType>> pathVsEvent = new HashMap<>();
    LOG.info("Adding NodeChildrenChanged, NodeDataChanged watchers");
    final CountDownLatch watcherLatch = new CountDownLatch(2);
    Watcher watcher = new Watcher() {

        @Override
        public void process(WatchedEvent event) {
            switch(event.getType()) {
                case ChildWatchRemoved:
                case DataWatchRemoved:
                    addWatchNotifications(pathVsEvent, event);
                    watcherLatch.countDown();
                    break;
                case NodeChildrenChanged:
                case NodeDataChanged:
                    addWatchNotifications(pathVsEvent, event);
                    break;
            }
        }

        private void addWatchNotifications(Map<String, List<EventType>> pathVsEvent, WatchedEvent event) {
            pathVsEvent.computeIfAbsent(event.getPath(), k -> new ArrayList<>()).add(event.getType());
        }
    };
    zk.create("/testnode1", "data".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
    zk.getChildren("/testnode1", watcher);
    zk.getData("/testnode1", watcher, null);
    String cmdstring = "removewatches /testnode1 -a";
    if (local) {
        LOG.info("Stopping ZK server to verify deletion of watches locally");
        stopServer();
        cmdstring = "removewatches /testnode1 -a -l";
    }
    LOG.info("Remove watchers using shell command : {}", cmdstring);
    zkMain.cl.parseCommand(cmdstring);
    assertTrue(zkMain.processZKCmd(zkMain.cl), "Removewatches cmd fails to remove child/data watches");
    LOG.info("Waiting for the WatchRemoved events");
    watcherLatch.await(10, TimeUnit.SECONDS);
    assertEquals(1, pathVsEvent.size(), "Didn't receives WatchRemoved events!");
    assertTrue(pathVsEvent.get("/testnode1").contains(EventType.DataWatchRemoved), "Didn't receives DataWatchRemoved!");
    assertTrue(pathVsEvent.get("/testnode1").contains(EventType.ChildWatchRemoved), "Didn't receives ChildWatchRemoved!");
}