Java tutorial
/** * Copyright (C) 2010-2013 Alibaba Group Holding Limited * * 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.alibaba.rocketmq.tools.command.message; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.Option; import org.apache.commons.cli.Options; import com.alibaba.rocketmq.client.QueryResult; import com.alibaba.rocketmq.client.exception.MQBrokerException; import com.alibaba.rocketmq.client.exception.MQClientException; import com.alibaba.rocketmq.common.MixAll; import com.alibaba.rocketmq.common.UtilALl; import com.alibaba.rocketmq.common.message.MessageExt; import com.alibaba.rocketmq.remoting.common.RemotingHelper; import com.alibaba.rocketmq.remoting.exception.RemotingException; import com.alibaba.rocketmq.tools.admin.DefaultMQAdminExt; import com.alibaba.rocketmq.tools.command.SubCommand; /** * ??Id?Key? * * @author shijia.wxr<vintage.wang@gmail.com> * @since 2013-8-12 */ public class QueryMessageSubCommand implements SubCommand { @Override public String commandName() { return "queryMessage"; } @Override public String commandDesc() { return "Query Message by Id or Key"; } @Override public Options buildCommandlineOptions(Options options) { Option opt = new Option("t", "topic", true, "topic name"); opt.setRequired(false); options.addOption(opt); opt = new Option("i", "msgId", true, "Message Id"); opt.setRequired(false); options.addOption(opt); opt = new Option("k", "msgKey", true, "Message Key"); opt.setRequired(false); options.addOption(opt); opt = new Option("f", "fallbackHours", true, "Fallback Hours"); opt.setRequired(false); options.addOption(opt); return options; } void queryById(final DefaultMQAdminExt admin, final String msgId) throws MQClientException, RemotingException, MQBrokerException, InterruptedException { admin.start(); MessageExt msg = admin.viewMessage(msgId); System.out.printf("%-20s %s\n", // "Topic:", // msg.getTopic()// ); System.out.printf("%-20s %s\n", // "Tags:", // "[" + msg.getTags() + "]"// ); System.out.printf("%-20s %s\n", // "Keys:", // "[" + msg.getKeys() + "]"// ); System.out.printf("%-20s %d\n", // "Queue ID:", // msg.getQueueId()// ); System.out.printf("%-20s %d\n", // "Queue Offset:", // msg.getQueueOffset()// ); System.out.printf("%-20s %d\n", // "CommitLog Offset:", // msg.getCommitLogOffset()// ); System.out.printf("%-20s %s\n", // "Born Timestamp:", // UtilALl.timeMillisToHumanString2(msg.getBornTimestamp())// ); System.out.printf("%-20s %s\n", // "Store Timestamp:", // UtilALl.timeMillisToHumanString2(msg.getStoreTimestamp())// ); System.out.printf("%-20s %s\n", // "Born Host:", // RemotingHelper.parseSocketAddressAddr(msg.getBornHost())// ); System.out.printf("%-20s %s\n", // "Store Host:", // RemotingHelper.parseSocketAddressAddr(msg.getStoreHost())// ); System.out.printf("%-20s %d\n", // "System Flag:", // msg.getSysFlag()// ); } void queryByKey(final DefaultMQAdminExt admin, final String topic, final String key, final long fallbackHours) throws MQClientException, InterruptedException { admin.start(); long end = System.currentTimeMillis() - (fallbackHours * 60 * 60 * 1000); long begin = end - (6 * 60 * 60 * 1000); QueryResult queryResult = admin.queryMessage(topic, key, 32, begin, end); System.out.printf("%-50s %-4s %s\n", // "#Message ID", // "#QID", // "#Offset"); for (MessageExt msg : queryResult.getMessageList()) { System.out.printf("%-50s %-4d %d\n", msg.getMsgId(), msg.getQueueId(), msg.getQueueOffset()); } } @Override public void execute(CommandLine commandLine, Options options) { DefaultMQAdminExt defaultMQAdminExt = new DefaultMQAdminExt(); defaultMQAdminExt.setInstanceName(Long.toString(System.currentTimeMillis())); try { if (commandLine.hasOption('i')) { final String msgId = commandLine.getOptionValue('i'); this.queryById(defaultMQAdminExt, msgId); } else if (commandLine.hasOption('k') && commandLine.hasOption('t')) { final String topic = commandLine.getOptionValue('t'); final String key = commandLine.getOptionValue('k'); final String fallbackHours = commandLine.getOptionValue('f'); long h = 0; if (fallbackHours != null) { h = Long.parseLong(fallbackHours); } this.queryByKey(defaultMQAdminExt, topic, key, h); } else { MixAll.printCommandLineHelp("mqadmin " + this.commandName(), options); } } catch (Exception e) { e.printStackTrace(); } finally { defaultMQAdminExt.shutdown(); } } }