Example usage for org.apache.zookeeper WatchedEvent getState

Introduction

In this page you can find the example usage for org.apache.zookeeper WatchedEvent getState.

Prototype

public KeeperState getState()

Source Link

Usage

From source file:me.tfeng.play.plugins.AvroD2Plugin.java

License:Apache License

@Override
public void process(WatchedEvent event) {
    LOG.info(event.toString());//from   ww w .  j a  v  a 2 s. c  o  m
    switch (event.getState()) {
    case SyncConnected:
        if (expired) {
            expired = false;
            servers.forEach(AvroD2Server::register);
        }
        break;
    case Expired:
        expired = true;
        try {
            zk.close();
        } catch (InterruptedException e) {
            // Ignore.
        }
        connect();
    default:
    }
}

From source file:ml.shifu.guagua.BasicCoordinator.java

License:Apache License

@Override
public void process(final WatchedEvent event) {
    LOG.debug("process: Got a new event, path = {}, type = {}, state = {}", event.getPath(), event.getType(),
            event.getState());

    if ((event.getPath() == null) && (event.getType() == EventType.None)) {
        if (event.getState() == KeeperState.SyncConnected) {
            LOG.info("process: Asynchronous connection complete.");
            this.getZkConnLatch().countDown();
        } else {/*from www.  j a va  2 s .  co  m*/
            LOG.warn("process: Got unknown null path event {}.", event);
        }
        return;
    }
}

From source file:ml.shifu.guagua.master.AsyncMasterCoordinator.java

License:Apache License

@Override
public void process(WatchedEvent event) {
    LOG.debug("DEBUG: process: Got a new event, path = {}, type = {}, state = {}", event.getPath(),
            event.getType(), event.getState());

    if ((event.getPath() == null) && (event.getType() == EventType.None)) {
        if (event.getState() == KeeperState.SyncConnected) {
            LOG.info("process: Asynchronous connection complete.");
            super.getZkConnLatch().countDown();
        } else {//  w w  w .ja  va 2s. co m
            LOG.warn("process: Got unknown null path event " + event);
        }
        return;
    }

    /**
     * Check lock signal condition.
     */
    String appWorkerBaseNode = getWorkerBaseNode(getAppId(), getCurrentIteration()).toString();
    if (event.getPath().equals(appWorkerBaseNode) && (event.getType() == EventType.NodeChildrenChanged)) {
        if (getCurrentIteration() == 0) {
            this.workerInitLock.signal();
        } else {
            this.workerIterationLock.signal();
        }
    }
}

From source file:ml.shifu.guagua.worker.AsyncWorkerCoordinator.java

License:Apache License

@Override
public void process(WatchedEvent event) {
    LOG.info("DEBUG: process: Got a new event, path = {}, type = {}, state = {}", event.getPath(),
            event.getType(), event.getState());

    if ((event.getPath() == null) && (event.getType() == EventType.None)) {
        if (event.getState() == KeeperState.SyncConnected) {
            LOG.info("process: Asynchronous connection complete.");
            super.getZkConnLatch().countDown();
        } else {/*from   w w  w.j  a  v a2s.c om*/
            LOG.warn("process: Got unknown null path event " + event);
        }
        return;
    }

    String appMasterNode = getCurrentMasterNode(getAppId(), getCurrentIteration()).toString();

    if (event.getPath().equals(appMasterNode)
            && (event.getType() == EventType.NodeCreated || event.getType() == EventType.NodeDataChanged)) {
        if (getCurrentIteration() == 0) {
            this.masterInitLock.signal();
        } else {
            this.masterIterationLock.signal();
        }
    }
}

From source file:msec.org.AccessZooKeeper.java

License:Open Source License

private void connectZooKeeper() {
    try {//from w w w. j  a  va2s  .  com
        zk = new ZooKeeper(connectStr, 5000, new Watcher() {
            @Override
            public void process(WatchedEvent event) {

                if (event.getState() == Event.KeeperState.SyncConnected) {
                    countDownLatch.countDown();
                }
            }
        });
        countDownLatch.await();

    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:net.freelabs.fidelio.core.zookeeper.ZkConnectionWatcher.java

License:Open Source License

/**
 * Processes a watched event when a//from www  . j  av a  2s .c  o m
 * {@link ZkConnectionWatcher ZkConnectionWatcher} object is passed as a
 * watcher.
 *
 * @param event a watched event.
 */
@Override
public void process(WatchedEvent event) {
    LOG.info("Session state event: {}", event.getState());
    if (event.getState() == KeeperState.SyncConnected) {
        connectedSignal.countDown();
    }
}

From source file:net.freelabs.maestro.core.zookeeper.ZkConnectionWatcher.java

License:Open Source License

/**
 * Processes a watched event when a//from ww w. j av  a  2s  .  c  om
 * {@link ZkConnectionWatcher ZkConnectionWatcher} object is passed as a
 * watcher.
 *
 * @param event a watched event.
 */
@Override
public void process(WatchedEvent event) {
    if (event.getState() == KeeperState.SyncConnected) {
        connectedSignal.countDown();
    }
}

From source file:net.killa.kept.CountDownOnConnectWatcher.java

License:Apache License

@Override
public void process(WatchedEvent event) {
    if (event.getState() == KeeperState.SyncConnected)
        this.latch.countDown();
}

From source file:net.killa.kept.SynchronizingWatcher.java

License:Apache License

/**
 * Synchronize a {@link Synchronizable} with the {@link ZooKeeper} cluster
 * when a NodeChildrenChangedEvent is detected, or the client reconnects to
 * the cluster.//  w  w  w .  j  ava  2 s .  c o  m
 * 
 * @param event
 *            A {@link WatchedEvent} that triggers synchronization
 * 
 */
@Override
public void process(WatchedEvent event) {
    // ignore no-op events and states in which we cannot read from the zk
    // cluster
    if (event.getType() == EventType.None || event.getState() == KeeperState.Disconnected
            || event.getState() == KeeperState.Expired) {
        SynchronizingWatcher.LOG
                .debug("ignoring no-op event " + event.getType() + " in state " + event.getState());

        return;
    }

    try {
        // synchronize the target
        SynchronizingWatcher.LOG.debug("synchronizing");

        this.synchronizable.synchronize();

        return;
    } catch (KeeperException e) {
        throw new RuntimeException("KeeperException caught", e);
    } catch (InterruptedException e) {
        throw new RuntimeException("InterruptedException caught", e);
    }
}

From source file:net.phoenix.thrift.server.ZookeeperRegisterHandler.java

License:Apache License

/**
 * process none event;// ww  w  . jav a  2s  .  co  m
 *
 * @param event
 */
private void processNoneEvent(WatchedEvent event) {
    switch (event.getState()) {
    case SyncConnected:
        this.processSyncConnectedEvent(event);
        break;
    case Expired:
        this.processExpiredEvent(event);
        break;
    case Disconnected:
        log.error("Disconnect with zookeeper " + znodePath + ".");
        break;
    default:
        break;
    }
}