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:org.apache.accumulo.server.security.delegation.ZooAuthenticationKeyWatcher.java

License:Apache License

@Override
public void process(WatchedEvent event) {
    if (EventType.None == event.getType()) {
        switch (event.getState()) {
        case Disconnected: // Intentional fall through of case
        case Expired: // ZooReader is handling the Expiration of the original ZooKeeper object for us
            log.debug("ZooKeeper connection disconnected, clearing secret manager");
            secretManager.removeAllKeys();
            break;
        case SyncConnected:
            log.debug("ZooKeeper reconnected, updating secret manager");
            try {
                updateAuthKeys();//w w w. j  a  va2 s  .  co m
            } catch (KeeperException | InterruptedException e) {
                log.error("Failed to update secret manager after ZooKeeper reconnect");
            }
            break;
        default:
            log.warn("Unhandled: " + event);
        }

        // Nothing more to do for EventType.None
        return;
    }

    String path = event.getPath();
    if (null == path) {
        return;
    }

    if (!path.startsWith(baseNode)) {
        log.info("Ignoring event for path: {}", path);
        return;
    }

    try {
        if (path.equals(baseNode)) {
            processBaseNode(event);
        } else {
            processChildNode(event);
        }
    } catch (KeeperException | InterruptedException e) {
        log.error("Failed to communicate with ZooKeeper", e);
    }
}

From source file:org.apache.accumulo.server.trace.TraceServer.java

License:Apache License

@Override
public void process(WatchedEvent event) {
    log.debug("event " + event.getPath() + " " + event.getType() + " " + event.getState());
    if (event.getState() == KeeperState.Expired) {
        log.warn("Trace server lost zookeeper registration at " + event.getPath());
        server.stop();/*w w w . j  a  v  a 2s. c o m*/
    } else if (event.getType() == EventType.NodeDeleted) {
        log.warn("Trace server zookeeper entry lost " + event.getPath());
        server.stop();
    }
    if (event.getPath() != null) {
        try {
            if (ZooReaderWriter.getInstance().exists(event.getPath(), this))
                return;
        } catch (Exception ex) {
            log.error(ex, ex);
        }
        log.warn("Trace server unable to reset watch on zookeeper registration");
        server.stop();
    }
}

From source file:org.apache.accumulo.tracer.TraceServer.java

License:Apache License

@Override
public void process(WatchedEvent event) {
    log.debug("event " + event.getPath() + " " + event.getType() + " " + event.getState());
    if (event.getState() == KeeperState.Expired) {
        log.warn("Trace server lost zookeeper registration at " + event.getPath());
        server.stop();/*  ww w .j a  va 2s .c  om*/
    } else if (event.getType() == EventType.NodeDeleted) {
        log.warn("Trace server zookeeper entry lost " + event.getPath());
        server.stop();
    }
    if (event.getPath() != null) {
        try {
            if (ZooReaderWriter.getInstance().exists(event.getPath(), this))
                return;
        } catch (Exception ex) {
            log.error("{}", ex.getMessage(), ex);
        }
        log.warn("Trace server unable to reset watch on zookeeper registration");
        server.stop();
    }
}

From source file:org.apache.activemq.leveldb.replicated.groups.ZKClient.java

License:Apache License

public void process(WatchedEvent event) {
    if (event.getState() != null) {
        LOG.debug("event: {}", event.getState());
        synchronized (_lock) {
            switch (event.getState()) {
            case SyncConnected:
                changeState(State.CONNECTED);
                break;

            case Disconnected:
                if (_state != State.NONE) {
                    changeState(State.RECONNECTING);
                }//ww w .  j av  a  2 s. co m
                break;

            case Expired:
                // when expired, the zookeeper object is invalid and we need to recreate a new one
                _zk = null;
                LOG.warn("Expiration detected: trying to restart...");
                tryConnect();
                break;
            default:
                LOG.warn("unprocessed event state: {}", event.getState());
            }
        }
    }
}

From source file:org.apache.airavata.api.server.AiravataAPIServer.java

License:Apache License

@Override
synchronized public void process(WatchedEvent watchedEvent) {
    synchronized (mutex) {
        Event.KeeperState state = watchedEvent.getState();
        logger.info(state.name());/*  w  w  w.j ava  2  s.  c  om*/
        if (state == Event.KeeperState.SyncConnected) {
            mutex.notify();
        } else if (state == Event.KeeperState.Expired || state == Event.KeeperState.Disconnected) {
            try {
                mutex = -1;
                zk = new ZooKeeper(AiravataZKUtils.getZKhostPort(), 6000, this);
                synchronized (mutex) {
                    mutex.wait(); // waiting for the syncConnected event
                }
                storeServerConfig();
            } catch (IOException e) {
                logger.error("Error while synchronizing with zookeeper", e);
            } catch (ApplicationSettingsException e) {
                logger.error("Error while synchronizing with zookeeper", e);
            } catch (InterruptedException e) {
                logger.error("Error while synchronizing with zookeeper", e);
            } catch (AiravataSystemException e) {
                logger.error("Error while synchronizing with zookeeper", e);
            }
        }
    }
}

From source file:org.apache.airavata.gfac.core.monitor.GfacInternalStatusUpdator.java

License:Apache License

public void process(WatchedEvent watchedEvent) {
    synchronized (mutex) {
        Event.KeeperState state = watchedEvent.getState();
        if (state == Event.KeeperState.SyncConnected) {
            mutex.notify();//from www .  ja v a 2 s.  c o m
        }
    }
}

From source file:org.apache.airavata.gfac.impl.GfacInternalStatusUpdator.java

License:Apache License

public void process(WatchedEvent watchedEvent) {
    logger.info(watchedEvent.getPath());
    synchronized (mutex) {
        Event.KeeperState state = watchedEvent.getState();
        if (state == Event.KeeperState.SyncConnected) {
            mutex.notify();//from  w  w w.j av a2 s  .co  m
        }
    }
}

From source file:org.apache.airavata.orchestrator.core.impl.GFACPassiveJobSubmitter.java

License:Apache License

synchronized public void process(WatchedEvent event) {
    logger.info(getClass().getName() + event.getPath());
    logger.info(getClass().getName() + event.getType());
    synchronized (mutex) {
        switch (event.getState()) {
        case SyncConnected:
            mutex.notify();//from   w  w  w . jav  a  2s  .  c  o m
        }
        switch (event.getType()) {
        case NodeCreated:
            mutex.notify();
            break;
        }
    }
}

From source file:org.apache.airavata.orchestrator.core.impl.GFACRPCJobSubmitter.java

License:Apache License

synchronized public void process(WatchedEvent event) {
    synchronized (mutex) {
        switch (event.getState()) {
        case SyncConnected:
            mutex.notify();/* w ww .j a va  2s .co  m*/
        }
        switch (event.getType()) {
        case NodeCreated:
            mutex.notify();
            break;
        }
    }
}

From source file:org.apache.airavata.orchestrator.util.OrchestratorRecoveryHandler.java

License:Apache License

synchronized public void process(WatchedEvent watchedEvent) {
    synchronized (mutex) {
        Event.KeeperState state = watchedEvent.getState();
        switch (state) {
        case SyncConnected:
            mutex.notify();/*from  w  ww .  j a  v a 2  s  .  c  o  m*/
            break;
        }
    }
}