/**
* 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.Iterator;
import java.util.Map.Entry;
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.client.exception.MQClientException;
import com.alibaba.rocketmq.common.MixAll;
import com.alibaba.rocketmq.common.UtilAll;
import com.alibaba.rocketmq.common.protocol.body.ClusterInfo;
import com.alibaba.rocketmq.common.protocol.body.GroupList;
import com.alibaba.rocketmq.common.protocol.body.TopicList;
import com.alibaba.rocketmq.common.protocol.route.BrokerData;
import com.alibaba.rocketmq.common.protocol.route.TopicRouteData;
import com.alibaba.rocketmq.remoting.exception.RemotingException;
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) {
Option opt = new Option("c", "clusterModel", false, "clusterModel");
opt.setRequired(false);
options.addOption(opt);
return options;
}
private String findTopicBelongToWhichCluster(final String topic, final ClusterInfo clusterInfo,
final DefaultMQAdminExt defaultMQAdminExt) throws RemotingException, MQClientException,
InterruptedException {
TopicRouteData topicRouteData = defaultMQAdminExt.examineTopicRouteInfo(topic);
BrokerData brokerData = topicRouteData.getBrokerDatas().get(0);
String brokerName = brokerData.getBrokerName();
Iterator<Entry<String, Set<String>>> it = clusterInfo.getClusterAddrTable().entrySet().iterator();
while (it.hasNext()) {
Entry<String, Set<String>> next = it.next();
if (next.getValue().contains(brokerName)) {
return next.getKey();
}
}
return null;
}
@Override
public void execute(final CommandLine commandLine, final Options options) {
DefaultMQAdminExt defaultMQAdminExt = new DefaultMQAdminExt();
defaultMQAdminExt.setInstanceName(Long.toString(System.currentTimeMillis()));
try {
defaultMQAdminExt.start();
if (commandLine.hasOption('c')) {
ClusterInfo clusterInfo = defaultMQAdminExt.examineBrokerClusterInfo();
System.out.printf("%-20s %-48s %-48s\n",//
"#Cluster Name",//
"#Topic",//
"#Consumer Group"//
);
TopicList topicList = defaultMQAdminExt.fetchAllTopicList();
for (String topic : topicList.getTopicList()) {
if (topic.startsWith(MixAll.RETRY_GROUP_TOPIC_PREFIX)
|| topic.startsWith(MixAll.DLQ_GROUP_TOPIC_PREFIX)) {
continue;
}
String clusterName = "";
GroupList groupList = new GroupList();
try {
clusterName =
this.findTopicBelongToWhichCluster(topic, clusterInfo, defaultMQAdminExt);
groupList = defaultMQAdminExt.queryTopicConsumeByWho(topic);
}
catch (Exception e) {
}
if (null == groupList || groupList.getGroupList().isEmpty()) {
groupList = new GroupList();
groupList.getGroupList().add("");
}
for (String group : groupList.getGroupList()) {
System.out.printf("%-20s %-48s %-48s\n",//
UtilAll.frontStringAtLeast(clusterName, 20),//
UtilAll.frontStringAtLeast(topic, 48),//
UtilAll.frontStringAtLeast(group, 48)//
);
}
}
}
else {
TopicList topicList = defaultMQAdminExt.fetchAllTopicList();
for (String topic : topicList.getTopicList()) {
System.out.println(topic);
}
}
}
catch (Exception e) {
e.printStackTrace();
}
finally {
defaultMQAdminExt.shutdown();
}
}
}