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Java example source code file (ZookeeperBuilder.java)
The ZookeeperBuilder.java Java example source code/* * * * Copyright 2015 Skymind,Inc. * * * * Licensed under the Apache License, Version 2.0 (the "License"); * * you may not use this file except in compliance with the License. * * You may obtain a copy of the License at * * * * http://www.apache.org/licenses/LICENSE-2.0 * * * * Unless required by applicable law or agreed to in writing, software * * distributed under the License is distributed on an "AS IS" BASIS, * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * * See the License for the specific language governing permissions and * * limitations under the License. * */ package org.deeplearning4j.scaleout.zookeeper; import java.io.IOException; import org.apache.zookeeper.WatchedEvent; import org.apache.zookeeper.Watcher; import org.apache.zookeeper.Watcher.Event.KeeperState; import org.apache.zookeeper.ZooKeeper; import org.apache.zookeeper.ZooKeeper.States; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * ZooKeeper client builder with default host of local host, port 2181, and timeout of 1000 * @author Adam Gibson * */ public class ZookeeperBuilder implements Watcher { private String host; private int port; private int timeout; private Watcher watcher; private ZooKeeper keeper; private static final Logger log = LoggerFactory.getLogger(ZookeeperBuilder.class); public ZookeeperBuilder() { host = "localhost"; port = 2181; timeout = 10000; } public ZooKeeper build() { try { keeper = new ZooKeeper(host + ":" + port,timeout,this); while(keeper.getState() != States.CONNECTED) { Thread.sleep(15000); log.info("Waiting to connect to zookeeper"); } return keeper; } catch (IOException e) { throw new RuntimeException(e); } catch (InterruptedException e) { Thread.currentThread().interrupt(); return null; } } public ZookeeperBuilder setWatcher(Watcher watcher) { this.watcher = watcher; return this; } public ZookeeperBuilder setPort(int port) { this.port = port; return this; } public ZookeeperBuilder setHost(String host) { this.host = host; return this; } public ZookeeperBuilder setSessionTimeout(int timeout) { this.timeout = timeout; return this; } @Override public void process(WatchedEvent event) { if(event.getState() == KeeperState.SyncConnected) { log.info("Synced"); } else if(event.getState() == KeeperState.Disconnected) { keeper = build(); } else if(event.getState() == KeeperState.Expired) { keeper = build(); } if(watcher!=null) watcher.process(event); log.info("Processed event..."); } } Other Java examples (source code examples)Here is a short list of links related to this Java ZookeeperBuilder.java source code file: |
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