/**
* 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.consumer.DefaultMQPullConsumer;
import com.alibaba.rocketmq.client.consumer.PullResult;
import com.alibaba.rocketmq.common.MixAll;
import com.alibaba.rocketmq.common.message.MessageQueue;
import com.alibaba.rocketmq.tools.admin.DefaultMQAdminExt;
import com.alibaba.rocketmq.tools.command.SubCommand;
/**
* 根据消息Offset查询消息
*
* @author shijia.wxr<vintage.wang@gmail.com>
* @since 2013-8-12
*/
public class QueryMsgByOffsetSubCommand implements SubCommand {
@Override
public String commandName() {
return "queryMsgByOffset";
}
@Override
public String commandDesc() {
return "Query Message by offset";
}
@Override
public Options buildCommandlineOptions(Options options) {
Option opt = new Option("t", "topic", true, "topic name");
opt.setRequired(true);
options.addOption(opt);
opt = new Option("b", "brokerName", true, "Broker Name");
opt.setRequired(true);
options.addOption(opt);
opt = new Option("i", "queueId", true, "Queue Id");
opt.setRequired(true);
options.addOption(opt);
opt = new Option("o", "offset", true, "Queue Offset");
opt.setRequired(true);
options.addOption(opt);
return options;
}
@Override
public void execute(CommandLine commandLine, Options options) {
DefaultMQAdminExt defaultMQAdminExt = new DefaultMQAdminExt();
DefaultMQPullConsumer defaultMQPullConsumer =
new DefaultMQPullConsumer(Long.toString(System.currentTimeMillis()));
defaultMQAdminExt.setInstanceName(Long.toString(System.currentTimeMillis()));
defaultMQPullConsumer.setInstanceName(MixAll.TOOLS_CONSUMER_GROUP);
try {
String topic = commandLine.getOptionValue('t').trim();
String brokerName = commandLine.getOptionValue('b').trim();
String queueId = commandLine.getOptionValue('i').trim();
String offset = commandLine.getOptionValue('o').trim();
MessageQueue mq = new MessageQueue();
mq.setTopic(topic);
mq.setBrokerName(brokerName);
mq.setQueueId(Integer.parseInt(queueId));
defaultMQPullConsumer.start();
PullResult pullResult = defaultMQPullConsumer.pull(mq, "*", Long.parseLong(offset), 1);
if (pullResult != null) {
switch (pullResult.getPullStatus()) {
case FOUND:
QueryMsgByIdSubCommand.queryById(defaultMQAdminExt, pullResult.getMsgFoundList().get(0)
.getMsgId());
break;
case NO_MATCHED_MSG:
case NO_NEW_MSG:
case OFFSET_ILLEGAL:
default:
break;
}
}
}
catch (Exception e) {
e.printStackTrace();
}
finally {
defaultMQPullConsumer.shutdown();
defaultMQAdminExt.shutdown();
}
}
}