List of usage examples for org.apache.zookeeper WatchedEvent toString
@Override
public String toString()
From source file:com.ling.zookeeper.ZookeeperWatcher.java
License:Open Source License
@Override public void process(WatchedEvent event) { System.out.println(event.toString()); try {//from www. j av a 2s.c o m this.zk.exists(znode, true);//????????process } catch (KeeperException e) { e.printStackTrace(); } catch (InterruptedException e) { e.printStackTrace(); } }
From source file:com.liveramp.hank.test.ZkTestCase.java
License:Apache License
@Before public final void setUpZk() throws Exception { setupZkServer();// w ww. j ava 2s . co m final Object lock = new Object(); final AtomicBoolean connected = new AtomicBoolean(false); zk = new ZooKeeperPlus("127.0.0.1:" + zkClientPort, 1000000, new Watcher() { @Override public void process(WatchedEvent event) { switch (event.getType()) { case None: if (event.getState() == KeeperState.SyncConnected) { connected.set(true); synchronized (lock) { lock.notifyAll(); } } } LOG.debug(event.toString()); } }); synchronized (lock) { lock.wait(2000); } if (!connected.get()) { fail("timed out waiting for the zk client connection to come online!"); } LOG.debug("session timeout: " + zk.getSessionTimeout()); zk.deleteNodeRecursively(zkRoot); WaitUntil.orDie(() -> { try { return zk.exists(zkRoot, false) == null; } catch (KeeperException | InterruptedException e) { throw new RuntimeException(e); } }); createNodeRecursively(zkRoot); }
From source file:com.navercorp.nbasearc.confmaster.server.WatchEventHandler.java
License:Apache License
@Override public void process(WatchedEvent event) { if (event.getType() == Event.EventType.None) { Logger.info(event.toString()); if (event.getState() == Watcher.Event.KeeperState.SyncConnected) { Logger.info("Connection to zookeeper is established. {}", event); Logger.flush(INFO);//from w w w . j a v a 2 s.c om connWait.countDown(); } else if (event.getState() == Watcher.Event.KeeperState.Expired) { Logger.info("ZooKeeper session expired, shutdown... {}", event); Logger.flush(DEBUG); System.exit(-1); } else { Logger.info("Connection to ZooKeeper state changed. {}", event); Logger.flush(INFO); } } else if (event.getType() == Event.EventType.NodeChildrenChanged || event.getType() == Event.EventType.NodeDataChanged) { processChildrenOrDataChangedEvent(event); } }
From source file:com.rapleaf.hank.ZkTestCase.java
License:Apache License
@Override protected void setUp() throws Exception { super.setUp(); Logger.getLogger("org.apache.zookeeper").setLevel(Level.WARN); setupZkServer();//from w w w .j a va 2 s.com final Object lock = new Object(); final AtomicBoolean connected = new AtomicBoolean(false); zk = new ZooKeeperPlus("127.0.0.1:" + zkClientPort, 1000000, new Watcher() { @Override public void process(WatchedEvent event) { switch (event.getType()) { case None: if (event.getState() == KeeperState.SyncConnected) { connected.set(true); synchronized (lock) { lock.notifyAll(); } } } LOG.debug(event.toString()); } }); synchronized (lock) { lock.wait(2000); } if (!connected.get()) { fail("timed out waiting for the zk client connection to come online!"); } LOG.debug("session timeout: " + zk.getSessionTimeout()); zk.deleteNodeRecursively(zkRoot); createNodeRecursively(zkRoot); }
From source file:com.thjug.process.LogWatcher.java
License:Creative Commons License
@Override public void process(WatchedEvent we) { LOG.info(we.toString()); }
From source file:io.pivotal.cf.servicebroker.Util.java
License:Open Source License
ZooKeeper getZooKeeper() throws IOException { return new ZooKeeper(env.getProperty("ZOOKEEPER_HOST"), Integer.parseInt(env.getProperty("ZOOKEEPER_TIMEOUT")), new Watcher() { @Override/*from www.ja va 2 s .c o m*/ public void process(WatchedEvent event) { log.info("watching: " + event.toString()); } }); }
From source file:io.seldon.api.state.ZkABTestingUpdater.java
License:Apache License
@Override public void run() { logger.info("Starting"); try {//from www . ja va2 s .co m while (keepRunning) { boolean error = false; try { CuratorFramework client = null; boolean ok = false; for (int attempts = 0; attempts < 4 && !ok; attempts++) { client = curatorHandler.getCurator().usingNamespace(clientName); logger.info("Waiting until zookeeper connected"); ok = client.getZookeeperClient().blockUntilConnectedOrTimedOut(); if (ok) logger.info("zookeeper connected on attempt " + attempts); else { logger.error("Timed out waiting for zookeeper connect : attempt " + attempts); } } if (!ok) { logger.error("Failed to connect to zookeeper after multiple attempts - STOPPING"); return; } queue = new LinkedBlockingQueue<>(); Watcher watcher = new Watcher() { boolean expired; @Override public void process(WatchedEvent event) { try { if (event.getPath() != null) queue.put(event.getPath()); else { logger.warn("Unexpected event " + event.getType().name() + " -> " + event.toString()); switch (event.getState()) { case SyncConnected: { } break; case Expired: { queue.put(""); } break; case Disconnected: { } break; } } } catch (InterruptedException e) { throw new Error(e); } } }; logger.info("Checking path " + DYNAMIC_PARAM_PATH + " exists"); if (client.checkExists().forPath(DYNAMIC_PARAM_PATH) == null) { logger.warn("Path " + DYNAMIC_PARAM_PATH + " does not exist for client " + clientName + " creating..."); client.create().forPath(DYNAMIC_PARAM_PATH); } logger.info("Checking path " + AB_ALG_PATH + " exists"); if (client.checkExists().forPath(AB_ALG_PATH) == null) { logger.warn("Path " + AB_ALG_PATH + " does not exist for client " + clientName + " creating..."); client.create().forPath(AB_ALG_PATH); } client.getData().usingWatcher(watcher).forPath(DYNAMIC_PARAM_PATH); client.getData().usingWatcher(watcher).forPath(AB_ALG_PATH); boolean restart = false; while (keepRunning && !restart) { String path = queue.take(); if (!StringUtils.isEmpty(path)) { logger.info("Alg Path changed " + path); System.out.println("Alg Path changed " + path); if (path.endsWith(DYNAMIC_PARAM_PATH)) { try { byte[] bytes = client.getData().forPath(DYNAMIC_PARAM_PATH); ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(bytes)); DynamicParameterBean bean = (DynamicParameterBean) in.readObject(); in.close(); logger.info("Updating dynamic parameter: " + bean.getName() + " and setting to value: " + bean.getValue() + " for client " + clientName); DynamicParameterServer.setParameterBean(clientName, bean); numUpdates++; } catch (ClassNotFoundException e) { logger.error("Can't find class ", e); } catch (IOException e) { logger.error("Failed to deserialize algorithm for client " + clientName, e); } finally { client.getData().usingWatcher(watcher).forPath(DYNAMIC_PARAM_PATH); } } else if (path.endsWith(AB_ALG_PATH)) { try { byte[] bytes = client.getData().forPath(AB_ALG_PATH); ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(bytes)); ABTest abTest = (ABTest) in.readObject(); in.close(); logger.info("Updating Algorithm percentage for client " + clientName + " to " + abTest.toString()); ABTestingServer.setABTest(clientName, abTest); numUpdates++; } catch (ClassNotFoundException e) { logger.error("Can't find class ", e); } catch (IOException e) { logger.error("Failed to deserialize algorithm for client " + clientName, e); } finally { client.getData().usingWatcher(watcher).forPath(AB_ALG_PATH); } } else { logger.error("Unknown path " + path + " changed so reseting watchers"); } } else { //client.getData().usingWatcher(watcher).forPath(DYNAMIC_PARAM_PATH); //client.getData().usingWatcher(watcher).forPath(AB_ALG_PATH); logger.warn("Will try to restart"); restart = true; } } } catch (IOException e) { logger.error("Exception trying to create sk client ", e); error = true; } catch (Exception e) { logger.error("Exception from zookeeper client ", e); error = true; } finally { } if (keepRunning && error) { logger.info("Sleeping " + sleepTime); Thread.sleep(sleepTime); if (sleepTime * 2 < maxSleepTime) sleepTime = sleepTime * 2; error = false; } } } catch (InterruptedException e) { logger.warn("Sleep interuppted ", e); } logger.info("Stopping"); }
From source file:io.seldon.api.state.ZkAlgorithmUpdater.java
License:Apache License
@Override public void run() { logger.info("Starting"); try {/*from w w w . j a va 2 s.c o m*/ boolean error = false; while (keepRunning) { try { CuratorFramework client = null; boolean ok = false; for (int attempts = 0; attempts < 4 && !ok; attempts++) { client = curatorHandler.getCurator().usingNamespace(clientName); logger.info("Waiting until zookeeper connected on attempt " + attempts); ok = client.getZookeeperClient().blockUntilConnectedOrTimedOut(); if (ok) logger.info("zookeeper connected"); else { logger.error("Timed out waiting for zookeeper connect : attempt " + attempts); } } if (!ok) { logger.error("Failed to connect to zookeeper after multiple attempts - STOPPING"); return; } queue = new LinkedBlockingQueue<>(); final Watcher watcher = new Watcher() { boolean expired = false; @Override public void process(WatchedEvent event) { try { if (event.getPath() != null) queue.put(event.getPath()); else { logger.warn("Unexpected event " + event.getType().name() + " -> " + event.toString()); switch (event.getState()) { case SyncConnected: { } break; case Expired: { queue.put(""); } break; case Disconnected: { logger.warn("Disconnected from server"); //queue.put(""); } break; } } } catch (InterruptedException e) { throw new Error(e); } } }; logger.info("Checking path " + ALG_PATH + " exists"); if (client.checkExists().forPath(ALG_PATH) == null) { logger.warn( "Path " + ALG_PATH + " does not exist for client " + clientName + " creating..."); client.create().forPath(ALG_PATH); } else logger.info("Path " + ALG_PATH + " exists"); //client.getConnectionStateListenable().addListener(stateListener); boolean restart = false; while (keepRunning && !restart) { client.getData().usingWatcher(watcher).forPath(ALG_PATH); String path = queue.take(); if (!StringUtils.isEmpty(path)) { logger.info("Alg Path changed " + path); byte[] bytes = client.getData().forPath(ALG_PATH); try { ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(bytes)); CFAlgorithm alg = (CFAlgorithm) in.readObject(); in.close(); //Update Algorithm for client logger.info( "Updating algorithm options for " + clientName + " to " + alg.toString()); Util.getAlgorithmService().setAlgorithmOptions(clientName, alg); numUpdates++; } catch (ClassNotFoundException e) { logger.error("Can't find class ", e); } catch (IOException e) { logger.error("Failed to deserialize algorithm for client " + clientName, e); } } else { //logger.warn("Empty path - maybe zookeeper connection state change watcher will be reset"); logger.warn("Will try to restart"); restart = true; } } } catch (IOException e) { logger.error("Exception trying to create sk client ", e); error = true; } catch (Exception e) { logger.error("Exception from zookeeper client ", e); error = true; } finally { } if (keepRunning && error) { logger.info("Sleeping " + sleepTime); Thread.sleep(sleepTime); if (sleepTime * 2 < maxSleepTime) sleepTime = sleepTime * 2; error = false; } } } catch (InterruptedException e) { logger.warn("Sleep interuppted ", e); } logger.info("Stopping"); }
From source file:me.tfeng.play.plugins.AvroD2Plugin.java
License:Apache License
@Override public void process(WatchedEvent event) { LOG.info(event.toString()); switch (event.getState()) { case SyncConnected: if (expired) { expired = false;/* www. j a va 2s. c om*/ servers.forEach(AvroD2Server::register); } break; case Expired: expired = true; try { zk.close(); } catch (InterruptedException e) { // Ignore. } connect(); default: } }
From source file:nl.gridline.zieook.workflow.scheduler.ZieOokScheduler.java
License:Apache License
@Override public void process(WatchedEvent event) { // nothing to do... LOG.info(event.toString()); }