com.alibaba.rocketmq.tools.command.topic.TopicClusterSubCommand.java Source code

Introduction

Here is the source code for com.alibaba.rocketmq.tools.command.topic.TopicClusterSubCommand.java

Source

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.topic;

import com.alibaba.rocketmq.remoting.RPCHook;
import com.alibaba.rocketmq.tools.admin.DefaultMQAdminExt;
import com.alibaba.rocketmq.tools.command.SubCommand;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;

import java.util.Set;

/**
 *
 * @author zhouli
 *
 */
public class TopicClusterSubCommand implements SubCommand {

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

    @Override
    public String commandDesc() {
        return "get cluster info for topic";
    }

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

    @Override
    public void execute(final CommandLine commandLine, final Options options, RPCHook rpcHook) {
        DefaultMQAdminExt defaultMQAdminExt = new DefaultMQAdminExt(rpcHook);
        defaultMQAdminExt.setInstanceName(Long.toString(System.currentTimeMillis()));
        String topic = commandLine.getOptionValue('t').trim();
        try {
            defaultMQAdminExt.start();
            Set<String> clusters = defaultMQAdminExt.getTopicClusterList(topic);
            for (String value : clusters) {
                System.out.println(value);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            defaultMQAdminExt.shutdown();
        }
    }
}