Java tutorial
/* * Copyright 2015-2101 gaoxianglong * * 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 com.gxl.test.shark.resource; import java.io.BufferedReader; import java.io.FileReader; import java.util.concurrent.CountDownLatch; import org.apache.zookeeper.WatchedEvent; import org.apache.zookeeper.Watcher; import org.apache.zookeeper.Watcher.Event.KeeperState; import org.apache.zookeeper.ZooKeeper; import org.junit.Test; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * ?zookeeper?? * * @author gaoxianglong * * @version 1.3.7 */ public class zkSetData { private Logger logger = LoggerFactory.getLogger(zkSetData.class); public @Test void testSetData() { try (BufferedReader reader = new BufferedReader(new FileReader("c:/shark-datasource.xml"))) { StringBuffer str = new StringBuffer(); String value = ""; while (null != (value = reader.readLine())) str.append(value); final CountDownLatch countDownLatch = new CountDownLatch(1); ZooKeeper zk_client = new ZooKeeper( "120.25.58.116:2181,120.25.58.116:2182,120.25.58.116:2183,120.25.58.116:2184", 30000, new Watcher() { @Override public void process(WatchedEvent event) { final KeeperState STATE = event.getState(); switch (STATE) { case SyncConnected: countDownLatch.countDown(); logger.info("?zookeeper?"); break; case Disconnected: logger.warn("zookeeper?"); break; case Expired: logger.error("session?..."); break; case AuthFailed: logger.error("ACL?..."); default: break; } } }); countDownLatch.await(); zk_client.setData("/info/datasource", str.toString().getBytes(), -1); logger.info("insert success"); } catch (Exception e) { logger.error("insert fail", e); } } }