/**
* 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 org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.Options;
import com.alibaba.rocketmq.common.protocol.body.TopicList;
import com.alibaba.rocketmq.tools.admin.DefaultMQAdminExt;
import com.alibaba.rocketmq.tools.command.SubCommand;
/**
* 查看Topic统计信息，包括offset、最后更新时间
*
* @author shijia.wxr<vintage.wang@gmail.com>
* @since 2013-8-3
*/
public class TopicListSubCommand implements SubCommand {
@Override
public String commandName() {
return "topicList";
}
@Override
public String commandDesc() {
return "Fetch all topic list from name server";
}
@Override
public Options buildCommandlineOptions(Options options) {
return options;
}
@Override
public void execute(final CommandLine commandLine, final Options options) {
DefaultMQAdminExt defaultMQAdminExt = new DefaultMQAdminExt();
defaultMQAdminExt.setInstanceName(Long.toString(System.currentTimeMillis()));
try {
defaultMQAdminExt.start();
TopicList topicList = defaultMQAdminExt.fetchAllTopicList();
for (String topic : topicList.getTopicList()) {
System.out.println(topic);
}
}
catch (Exception e) {
e.printStackTrace();
}
finally {
defaultMQAdminExt.shutdown();
}
}
}