org.apache.rocketmq.tools.command.logicalqueue.QueryTopicLogicalQueueMappingCommand Maven / Gradle / Ivy

Go to download
/*
 * 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 org.apache.rocketmq.tools.command.logicalqueue;

import com.alibaba.fastjson.JSON;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSortedMap;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.SortedMap;
import java.util.stream.Collectors;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.rocketmq.common.constant.LoggerName;
import org.apache.rocketmq.common.protocol.route.LogicalQueueRouteData;
import org.apache.rocketmq.common.protocol.route.LogicalQueuesInfo;
import org.apache.rocketmq.remoting.RPCHook;
import org.apache.rocketmq.srvutil.ServerUtil;
import org.apache.rocketmq.tools.admin.DefaultMQAdminExt;
import org.apache.rocketmq.tools.command.CommandUtil;
import org.apache.rocketmq.tools.command.SubCommand;
import org.apache.rocketmq.tools.command.SubCommandException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class QueryTopicLogicalQueueMappingCommand implements SubCommand {
    private static final Logger log = LoggerFactory.getLogger(LoggerName.STDOUT_LOGGER_NAME);

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

    @Override public String commandDesc() {
        return "query logical queue mapping info of a topic";
    }

    @Override public Options buildCommandlineOptions(Options options) {
        Option opt;

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

        opt = new Option("b", "brokerAddr", true, "broker address.");
        opt.setRequired(false);
        options.addOption(opt);

        opt = new Option("c", "clusterName", true, "cluster name.");
        opt.setRequired(false);
        options.addOption(opt);

        opt = new Option("m", "merge", false, "merge all brokers' result into one.");
        opt.setRequired(false);
        options.addOption(opt);

        return options;
    }

    @Override public void execute(CommandLine commandLine, Options options,
        RPCHook rpcHook) throws SubCommandException {
        DefaultMQAdminExt defaultMQAdminExt = new DefaultMQAdminExt(rpcHook);
        defaultMQAdminExt.setInstanceName(Long.toString(System.currentTimeMillis()));

        try {
            String topic = commandLine.getOptionValue("t").trim();
            List brokerAddrs;
            if (commandLine.hasOption("b")) {
                brokerAddrs = Collections.singletonList(commandLine.getOptionValue("c").trim());
            } else if (commandLine.hasOption("c")) {
                String clusterName = commandLine.getOptionValue("c").trim();
                brokerAddrs = CommandUtil.fetchMasterAddrByClusterName(defaultMQAdminExt, clusterName).stream().sorted().collect(Collectors.toList());
            } else {
                ServerUtil.printCommandLineHelp("mqadmin " + this.commandName(), options);
                return;
            }
            SortedMap>> result = Maps.newTreeMap();
            for (String brokerAddr : brokerAddrs) {
                LogicalQueuesInfo one = defaultMQAdminExt.queryTopicLogicalQueueMapping(brokerAddr, topic);
                result.put(brokerAddr, ImmutableSortedMap.copyOf(one));
            }
            if (commandLine.hasOption("m")) {
                SortedMap> mergedResultMap = Maps.newTreeMap();
                result.values().stream().flatMap(map -> map.values().stream()).flatMap(Collection::stream).forEach(queueRouteData -> {
                    List sortedQueueRouteDataList = mergedResultMap.computeIfAbsent(queueRouteData.getLogicalQueueIndex(), ignore -> Lists.newArrayList());
                    int idx = Collections.binarySearch(sortedQueueRouteDataList, queueRouteData,
                        Comparator.comparingLong(LogicalQueueRouteData::getLogicalQueueDelta)
                            .thenComparing(LogicalQueueRouteData::getMessageQueue)
                            .thenComparingInt(LogicalQueueRouteData::getStateOrdinal));
                    if (idx < 0) {
                        idx = -idx - 1;
                    }
                    sortedQueueRouteDataList.add(idx, queueRouteData);
                });
                System.out.printf("%s%n", JSON.toJSONString(ImmutableList.copyOf(mergedResultMap.values())));
            } else {
                System.out.printf("%s%n", JSON.toJSONString(result));
            }
        } catch (Exception e) {
            throw new SubCommandException(this.getClass().getSimpleName() + " command failed", e);
        } finally {
            defaultMQAdminExt.shutdown();
        }
    }
}