List of usage examples for org.apache.zookeeper WatchedEvent getType
public EventType getType()
From source file:org.eclipse.gyrex.cloud.internal.zk.ZooKeeperMonitor.java
License:Open Source License
@Override public void process(final WatchedEvent event) { switch (event.getType()) { case NodeChildrenChanged: childrenChanged(event.getPath()); break;// w ww .j a v a 2 s. c om case NodeCreated: pathCreated(event.getPath()); break; case NodeDeleted: pathDeleted(event.getPath()); break; case NodeDataChanged: recordChanged(event.getPath()); break; case None: // state of the connection changed // TODO: how to handle/consume this event here? // our prefered way of working with ZK connect/disconnect/expired events // is using the ZKGate which has it's own connect listener (integrated into ZKBasedService) // switch (event.getState()) { // case SyncConnected: // // connection established, nothing to do because watches // // will be automatically re-registered and delivered by ZooKeeper // connected(); // break; // case Disconnected: // // session disconnected, the gate will recover // disconnected(); // break; // case Expired: // // session expired, the gate will close // expired(); // break; // } break; default: LOG.warn("Unhandled event ({}) in ({})", new Object[] { event, this }); break; } }
From source file:org.fusesource.meshkeeper.distribution.registry.zk.ZooKeeperChildWatcher.java
License:Open Source License
public ZooKeeperChildWatcher(ZooKeeper zk, String path) { this.zk = zk; this.path = path; this.watcher = new Watcher() { public void process(WatchedEvent event) { switch (event.getType()) { case NodeChildrenChanged: { //System.out.println("NodeChildrenChangedEvent"); watch();/*from w ww .j av a2 s . c o m*/ break; } default: { System.out.println("WARNING Got:" + event); } } } }; this.callback = new ChildrenCallback() { public void processResult(int rc, String path, Object ctx, List<String> children) { handleChildUpdate(path, children); } }; }
From source file:org.hummer.config.WatcherAdapter.java
License:Apache License
public void process(WatchedEvent event) { WatchEvent evt = new WatchEvent(); evt.setState(event.getState().getIntValue()); evt.setType(event.getType().getIntValue()); evt.setArg(event.getPath());//from w w w . j a va 2 s . c o m innerWatcher.onEvent(evt); }
From source file:org.jc.zk.dpw.DataMonitor.java
@Override public void process(WatchedEvent event) { String path = event.getPath(); switch (event.getType()) { case NodeDataChanged: if (path.equals(this.znodeTime)) { //Time has been updated this.listener.timeZnodeChanged(); } else if (path.equals(this.znodeMaster)) { this.listener.masterZnodeChanged(); } else if (path.equals(this.processHeartBeatZnode)) { this.listener.processHeartBeatZnodeUpdate(); } else if (this.znodeToCreateForUpdates == null && this.cmwUpdateZnodes.contains(event.getPath())) { this.listener.cmwUpdatedUpdateZnode(event.getPath()); } else if (this.znodeToCreateForUpdates != null && this.znodeToCreateForUpdates.equals(event.getPath())) { this.bindToZnodes(this.isActiveMaster); } else if (path.equals(this.amwRequestKillZnode)) { this.listener.amwRequestKillZnodeChanged(); }// w w w . j a v a 2s .c o m break; case None: if (event.getState() == Event.KeeperState.Expired || event.getState() == Event.KeeperState.Disconnected) { this.listener.disconnected(KeeperException.Code.CONNECTIONLOSS.intValue()); } else if (event.getState() == Event.KeeperState.SyncConnected) { this.listener.connected(); } break; case NodeDeleted: if (event.getPath().equals(this.znodeTime)) { this.listener.timeZnodeRemoved(); } else if (event.getPath().equals(this.znodeProcessObserved)) { this.listener.processObservedZnodeRemoved(); } else if (this.cmwUpdateZnodes.contains(event.getPath())) { this.listener.cmwUpdateZnodeRemoved(); } break; case NodeCreated: if (this.ownCMWFailoverZnode != null && this.ownCMWFailoverZnode.equals(event.getPath())) { this.listener.cmwFailoverZnodeCreated(event.getPath()); } else if (this.znodeToCreateForUpdates != null && this.znodeToCreateForUpdates.equals(event.getPath())) { /** * To comply with the old model, where CMWs created update * znode, instead of waiting for AMW to create them, once CMW * detects that update znode was created by AMW, it will * automatically read the data from znode, that is, instead * of invoking callback to notify about the creation of znode * by master, it will proceed to read the content and later * notify CMW about the new data. */ Map<String, String> ctx = new HashMap<>(); ctx.put(ZNODE_TYPE, CMW_UPDATE_NODE); ctx.put(UPDATE_NODE_EVENT, UPDATE_EVENT_IS_CREATE); this.zk.getData(path, this, this, ctx); } else if (this.znodeToCreateForUpdates == null && this.cmwUpdateZnodes.contains(event.getPath())) { this.bindToZnodes(this.isActiveMaster); } else if (event.getPath().equals(this.znodeMaster)) { this.listener.masterZnodeCreated(); } else if (event.getPath().equals(this.znodeTime)) { this.listener.timeZnodeCreated(); } else if (event.getPath().equals(this.znodeProcessObserved)) { this.listener.processObservedZnodeCreated(); } break; } }
From source file:org.jc.zk.dpw.DataMonitorProcesses.java
@Override public void process(WatchedEvent event) { switch (event.getType()) { case NodeCreated: if (event.getPath().equals(this.znodeObserved)) { }/*from ww w . ja v a2s . c o m*/ break; case NodeDataChanged: if (event.getPath().equals(this.znodeTime)) { this.readTimeZnode(); } break; case None: if (event.getState() == Event.KeeperState.Disconnected || event.getState() == Event.KeeperState.Expired) { this.listener.closing(KeeperException.Code.CONNECTIONLOSS.intValue()); } break; case NodeDeleted: if (event.getPath().equals(this.znodeObserved) || event.getPath().equals(this.znodeTime)) { this.listener.closing(KeeperException.Code.CONNECTIONLOSS.intValue()); } break; } }
From source file:org.jc.zk.dpw.TimeDataMonitor.java
@Override public void process(WatchedEvent event) { System.out.print(event.toString()); switch (event.getType()) { case NodeCreated: if (event.getPath().equals(this.znodeForTimeListeners)) { this.listener.timeListenersZnodeCreated(); } else if (event.getPath().equals(this.timeZnodeRemovedFlagZnode)) { this.listener.notificationZnodeCreated(); }//from w w w .j a v a 2 s . c om break; case NodeDeleted: if (event.getPath().equals(this.timeZnode)) { this.listener.timeZnodeDeleted(); } else if (event.getPath().equals(this.znodeForTimeListeners)) { this.listener.timeListenersZnodeDeleted(); } else if (event.getPath().equals(this.timeZnodeRemovedFlagZnode)) { this.listener.notificationZnodeRemoved(); } break; case NodeDataChanged: if (event.getPath().equals(this.timeZnode)) { this.listener.timeZnodeChanged(); //this.zk.getData(this.timeZnode, null, this, this.ctx); } else if (event.getPath().equals(this.znodeForTimeListeners)) { this.listener.timeListenersZnodeChanged(); } else if (event.getPath().equals(this.requestAMWKillZnode)) { this.listener.requestAMWKillZnodeChanged(); } break; case None: if (event.getState() == Event.KeeperState.SyncConnected) { this.listener.connected(); } else if (event.getState() == Event.KeeperState.Disconnected || event.getState() == Event.KeeperState.Expired) { this.listener.disconnected(KeeperException.Code.CONNECTIONLOSS.intValue()); } break; } }
From source file:org.jc.zk.process.ProcessWrapperMonitor.java
@Override public void process(WatchedEvent event) { switch (event.getType()) { case None://from ww w.j a v a 2s . co m if (event.getState() == Event.KeeperState.Disconnected || event.getState() == Event.KeeperState.Expired) { this.listener.disconnected(); } else if (event.getState() == Event.KeeperState.SyncConnected) { this.listener.connected(); } break; case NodeCreated: if (event.getPath().equals(this.heartBeatZnode)) { this.listener.pHeartBeatZnodeCreated(); } break; case NodeDeleted: if (event.getPath().equals(this.heartBeatZnode)) { this.listener.pHeartBeatZnodeRemoved(); } break; } }
From source file:org.lable.oss.dynamicconfig.provider.zookeeper.NodeWatcher.java
License:Apache License
@Override public void process(WatchedEvent watchedEvent) { if (state != State.LIVE) return;/*from w w w. j a v a2 s. co m*/ Event.KeeperState state = watchedEvent.getState(); Event.EventType type = watchedEvent.getType(); // This switch handles all relevant states, and tries to reset the watch on the znode after it is // triggered. switch (state) { case SyncConnected: case ConnectedReadOnly: resetRetryCounters(); switch (type) { case NodeCreated: case NodeDataChanged: // Configuration znode changed, let the callback know. zk.getData(path, this, callback, null); break; case None: registerWatcher(path); break; case NodeDeleted: logger.error("Our configuration znode was deleted. Waiting for it to be recreated"); registerWatcher(path); break; } break; case Disconnected: logger.warn("Disconnected from Zookeeper quorum, reconnecting"); // The Zookeeper instance will automatically attempt reconnection. waitBeforeRetrying(); break; case Expired: logger.warn("Connection to Zookeeper quorum expired. Attempting to reconnect"); // The Zookeeper instance is no longer valid. We have to reconnect ourselves. connect(); break; case SaslAuthenticated: case AuthFailed: // Probably not relevant to us. break; } }
From source file:org.labs.qbit.election.leader.LeaderProcedure.java
License:Open Source License
@Override public void process(WatchedEvent event) { logger.info("An event occurred for [{}] for process ID [{}]", event.getPath(), processID); if (event.getType() == Watcher.Event.EventType.None) { createZNode();/*from www . j ava2 s. c o m*/ } else { String path = event.getPath(); if (path != null && path.equals(zNodeBasePath)) { try { zooKeeper.getChildren(zNodeBasePath, this); } catch (KeeperException e) { logger.error("An error occurred", e); } catch (InterruptedException e) { logger.error("An error occurred", e); } } } }
From source file:org.midonet.midolman.state.ZkLeaderElectionWatcher.java
License:Apache License
public void process(WatchedEvent event) { if (event.getType().equals(Event.EventType.NodeDeleted)) { try {//from w w w. j ava 2s .c o m String nextNodePath = watchNextNode(mySeqNum, executeOnBecomingLeader, leaderPath, zk); if (nextNodePath == null) { executeOnBecomingLeader.call(); } } catch (StateAccessException e) { log.error("error trying to install watcher on " + leaderPath + ": " + e.getMessage()); } } }