Package com.alibaba.rocketmq.tools.command.topic

Source Code of com.alibaba.rocketmq.tools.command.topic.UpdateTopicSubCommand

/**
* 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.topic;

import java.util.Set;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;

import com.alibaba.rocketmq.common.MixAll;
import com.alibaba.rocketmq.common.TopicConfig;
import com.alibaba.rocketmq.tools.admin.DefaultMQAdminExt;
import com.alibaba.rocketmq.tools.command.CommandUtil;
import com.alibaba.rocketmq.tools.command.SubCommand;


/**
* 修改、创建Topic配置命令
*
* @author shijia.wxr<vintage.wang@gmail.com>
* @since 2013-7-21
*/
public class UpdateTopicSubCommand implements SubCommand {

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


    @Override
    public String commandDesc() {
        return "Update or create topic";
    }


    @Override
    public Options buildCommandlineOptions(Options options) {
        Option opt = new Option("b", "brokerAddr", true, "create topic to which broker");
        opt.setRequired(false);
        options.addOption(opt);

        opt = new Option("c", "clusterName", true, "create topic to which cluster");
        opt.setRequired(false);
        options.addOption(opt);

        opt = new Option("t", "topic", true, "topic name");
        opt.setRequired(true);
        options.addOption(opt);

        opt = new Option("r", "readQueueNums", true, "set read queue nums");
        opt.setRequired(false);
        options.addOption(opt);

        opt = new Option("w", "writeQueueNums", true, "set write queue nums");
        opt.setRequired(false);
        options.addOption(opt);

        opt = new Option("p", "perm", true, "set topic's permission(W|R|WR)");
        opt.setRequired(false);
        options.addOption(opt);

        return options;
    }


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

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

        try {
            TopicConfig topicConfig = new TopicConfig();
            topicConfig.setReadQueueNums(8);
            topicConfig.setWriteQueueNums(8);
            topicConfig.setTopicName(commandLine.getOptionValue('t').trim());

            // readQueueNums
            if (commandLine.hasOption('r')) {
                topicConfig.setReadQueueNums(Integer.parseInt(commandLine.getOptionValue('r').trim()));
            }

            // writeQueueNums
            if (commandLine.hasOption('w')) {
                topicConfig.setWriteQueueNums(Integer.parseInt(commandLine.getOptionValue('w').trim()));
            }

            // perm
            if (commandLine.hasOption('p')) {
                topicConfig.setPerm(Integer.parseInt(commandLine.getOptionValue('p').trim()));
            }

            if (commandLine.hasOption('b')) {
                String addr = commandLine.getOptionValue('b').trim();

                defaultMQAdminExt.start();
                defaultMQAdminExt.createAndUpdateTopicConfig(addr, topicConfig);
                System.out.printf("create topic to %s success.\n", addr);
                System.out.println(topicConfig);
                return;

            }
            else if (commandLine.hasOption('c')) {
                String clusterName = commandLine.getOptionValue('c').trim();

                defaultMQAdminExt.start();

                Set<String> masterSet =
                        CommandUtil.fetchMasterAddrByClusterName(defaultMQAdminExt, clusterName);
                for (String addr : masterSet) {
                    defaultMQAdminExt.createAndUpdateTopicConfig(addr, topicConfig);
                    System.out.printf("create topic to %s success.\n", addr);
                }
                System.out.println(topicConfig);
                return;
            }

            MixAll.printCommandLineHelp("mqadmin " + this.commandName(), options);
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        finally {
            defaultMQAdminExt.shutdown();
        }
    }
}
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