com.alibaba.rocketmq.tools.command.message.QueryMsgByKeySubCommand.java Source code

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Here is the source code for com.alibaba.rocketmq.tools.command.message.QueryMsgByKeySubCommand.java

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/**
 * 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.MQClientException;
import com.alibaba.rocketmq.common.message.MessageExt;
import com.alibaba.rocketmq.remoting.RPCHook;
import com.alibaba.rocketmq.tools.admin.DefaultMQAdminExt;
import com.alibaba.rocketmq.tools.command.SubCommand;

/**
 * ??Key?
 * 
 * @author shijia.wxr<vintage.wang@gmail.com>
 * @since 2013-8-12
 */
public class QueryMsgByKeySubCommand implements SubCommand {

    @Override
    public String commandName() {
        return "queryMsgByKey";
    }

    @Override
    public String commandDesc() {
        return "Query Message by Key";
    }

    @Override
    public Options buildCommandlineOptions(Options options) {
        Option opt = new Option("t", "topic", true, "topic name");
        opt.setRequired(true);
        options.addOption(opt);

        opt = new Option("k", "msgKey", true, "Message Key");
        opt.setRequired(true);
        options.addOption(opt);

        return options;
    }

    void queryByKey(final DefaultMQAdminExt admin, final String topic, final String key)
            throws MQClientException, InterruptedException {
        admin.start();

        QueryResult queryResult = admin.queryMessage(topic, key, 64, 0, Long.MAX_VALUE);
        System.out.printf("%-50s %4s %40s\n", //
                "#Message ID", //
                "#QID", //
                "#Offset");
        for (MessageExt msg : queryResult.getMessageList()) {
            System.out.printf("%-50s %4d %40d\n", msg.getMsgId(), msg.getQueueId(), msg.getQueueOffset());
        }
    }

    @Override
    public void execute(CommandLine commandLine, Options options, RPCHook rpcHook) {
        DefaultMQAdminExt defaultMQAdminExt = new DefaultMQAdminExt(rpcHook);

        defaultMQAdminExt.setInstanceName(Long.toString(System.currentTimeMillis()));

        try {
            final String topic = commandLine.getOptionValue('t').trim();
            final String key = commandLine.getOptionValue('k').trim();

            this.queryByKey(defaultMQAdminExt, topic, key);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            defaultMQAdminExt.shutdown();
        }
    }
}