org.apache.rocketmq.remoting.exception.RemotingCommandException Java Examples

/**
 * 获取最大的偏移量
 * @param ctx ctx
 * @param request request
 * @return ;
 * @throws RemotingCommandException ;
 */
private RemotingCommand getMaxOffset(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {

    final RemotingCommand response = RemotingCommand.createResponseCommand(GetMaxOffsetResponseHeader.class);
    final GetMaxOffsetResponseHeader responseHeader = (GetMaxOffsetResponseHeader) response.readCustomHeader();
    final GetMaxOffsetRequestHeader requestHeader =
        (GetMaxOffsetRequestHeader) request.decodeCommandCustomHeader(GetMaxOffsetRequestHeader.class);

    long offset = this.brokerController.getMessageStore().getMaxOffsetInQueue(requestHeader.getTopic(), requestHeader.getQueueId());

    responseHeader.setOffset(offset);

    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}
 

/**
 * 获取最早的消息的存储的时间
 * @param ctx ctx
 * @param request ;
 * @return ;
 * @throws RemotingCommandException ;
 */
private RemotingCommand getEarliestMsgStoretime(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {

    final RemotingCommand response = RemotingCommand.createResponseCommand(GetEarliestMsgStoretimeResponseHeader.class);
    final GetEarliestMsgStoretimeResponseHeader responseHeader = (GetEarliestMsgStoretimeResponseHeader) response.readCustomHeader();

    final GetEarliestMsgStoretimeRequestHeader requestHeader =
        (GetEarliestMsgStoretimeRequestHeader) request.decodeCommandCustomHeader(GetEarliestMsgStoretimeRequestHeader.class);

    long timestamp =
        this.brokerController.getMessageStore().getEarliestMessageTime(requestHeader.getTopic(), requestHeader.getQueueId());

    responseHeader.setTimestamp(timestamp);
    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}
 

@Test
public void testProcessRequest_UnregisterBroker() throws RemotingCommandException, NoSuchFieldException, IllegalAccessException {
    ChannelHandlerContext ctx = mock(ChannelHandlerContext.class);
    when(ctx.channel()).thenReturn(null);

    //Register broker
    RemotingCommand regRequest = genSampleRegisterCmd(true);
    defaultRequestProcessor.processRequest(ctx, regRequest);

    //Unregister broker
    RemotingCommand unregRequest = genSampleRegisterCmd(false);
    RemotingCommand unregResponse = defaultRequestProcessor.processRequest(ctx, unregRequest);

    assertThat(unregResponse.getCode()).isEqualTo(ResponseCode.SUCCESS);
    assertThat(unregResponse.getRemark()).isNull();

    RouteInfoManager routes = namesrvController.getRouteInfoManager();
    Field brokerAddrTable = RouteInfoManager.class.getDeclaredField("brokerAddrTable");
    brokerAddrTable.setAccessible(true);

    assertThat((Map) brokerAddrTable.get(routes)).isNotEmpty();
}
 

public RegisterFilterServerResponseHeader registerFilterServerToBroker(
    final String brokerAddr,
    final String filterServerAddr
) throws RemotingCommandException, RemotingConnectException, RemotingSendRequestException,
    RemotingTimeoutException, InterruptedException, MQBrokerException {
    RegisterFilterServerRequestHeader requestHeader = new RegisterFilterServerRequestHeader();
    requestHeader.setFilterServerAddr(filterServerAddr);
    RemotingCommand request =
        RemotingCommand.createRequestCommand(RequestCode.REGISTER_FILTER_SERVER, requestHeader);

    RemotingCommand response = this.remotingClient.invokeSync(brokerAddr, request, 3000);
    assert response != null;
    switch (response.getCode()) {
        case ResponseCode.SUCCESS: {
            RegisterFilterServerResponseHeader responseHeader =
                (RegisterFilterServerResponseHeader) response
                    .decodeCommandCustomHeader(RegisterFilterServerResponseHeader.class);

            return responseHeader;
        }
        default:
            break;
    }

    throw new MQBrokerException(response.getCode(), response.getRemark());
}
 

@Override
public RemotingCommand processRequest(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {
    switch (request.getCode()) {
        case RequestCode.CHECK_TRANSACTION_STATE:
            return this.checkTransactionState(ctx, request);
        case RequestCode.NOTIFY_CONSUMER_IDS_CHANGED:
            return this.notifyConsumerIdsChanged(ctx, request);
        case RequestCode.RESET_CONSUMER_CLIENT_OFFSET:
            return this.resetOffset(ctx, request);
        case RequestCode.GET_CONSUMER_STATUS_FROM_CLIENT:
            return this.getConsumeStatus(ctx, request);

        case RequestCode.GET_CONSUMER_RUNNING_INFO:
            return this.getConsumerRunningInfo(ctx, request);

        case RequestCode.CONSUME_MESSAGE_DIRECTLY:
            return this.consumeMessageDirectly(ctx, request);
        default:
            break;
    }
    return null;
}
 

private RemotingCommand lockBatchMQ(ChannelHandlerContext ctx,
        RemotingCommand request) throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
        LockBatchRequestBody requestBody = LockBatchRequestBody.decode(request.getBody(), LockBatchRequestBody.class);

//        获取可锁定的消息集合=》
        Set<MessageQueue> lockOKMQSet = this.brokerController.getRebalanceLockManager().tryLockBatch(
            requestBody.getConsumerGroup(),
            requestBody.getMqSet(),
            requestBody.getClientId());

        LockBatchResponseBody responseBody = new LockBatchResponseBody();
        responseBody.setLockOKMQSet(lockOKMQSet);

        response.setBody(responseBody.encode());
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
        return response;
    }
 

private RemotingCommand registerFilterServer(ChannelHandlerContext ctx,
        RemotingCommand request) throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(RegisterFilterServerResponseHeader.class);
        final RegisterFilterServerResponseHeader responseHeader = (RegisterFilterServerResponseHeader) response.readCustomHeader();
        final RegisterFilterServerRequestHeader requestHeader =
            (RegisterFilterServerRequestHeader) request.decodeCommandCustomHeader(RegisterFilterServerRequestHeader.class);

//        =》
        this.brokerController.getFilterServerManager().registerFilterServer(ctx.channel(), requestHeader.getFilterServerAddr());

        responseHeader.setBrokerId(this.brokerController.getBrokerConfig().getBrokerId());
        responseHeader.setBrokerName(this.brokerController.getBrokerConfig().getBrokerName());

        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
        return response;
    }
 

public int wipeWritePermOfBroker(final String namesrvAddr, String brokerName,
    final long timeoutMillis) throws RemotingCommandException,
    RemotingConnectException, RemotingSendRequestException, RemotingTimeoutException, InterruptedException, MQClientException {
    WipeWritePermOfBrokerRequestHeader requestHeader = new WipeWritePermOfBrokerRequestHeader();
    requestHeader.setBrokerName(brokerName);

    RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.WIPE_WRITE_PERM_OF_BROKER, requestHeader);

    RemotingCommand response = this.remotingClient.invokeSync(namesrvAddr, request, timeoutMillis);
    assert response != null;
    switch (response.getCode()) {
        case ResponseCode.SUCCESS: {
            WipeWritePermOfBrokerResponseHeader responseHeader =
                (WipeWritePermOfBrokerResponseHeader) response.decodeCommandCustomHeader(WipeWritePermOfBrokerResponseHeader.class);
            return responseHeader.getWipeTopicCount();
        }
        default:
            break;
    }

    throw new MQClientException(response.getCode(), response.getRemark());
}
 

@Override
public void checkFields() throws RemotingCommandException {
    if (MessageSysFlag.TRANSACTION_NOT_TYPE == this.commitOrRollback) {
        return;
    }

    if (MessageSysFlag.TRANSACTION_COMMIT_TYPE == this.commitOrRollback) {
        return;
    }

    if (MessageSysFlag.TRANSACTION_ROLLBACK_TYPE == this.commitOrRollback) {
        return;
    }

    throw new RemotingCommandException("commitOrRollback field wrong");
}
 

@Test
public void testProcessRequest_PutKVConfig() throws RemotingCommandException {
    PutKVConfigRequestHeader header = new PutKVConfigRequestHeader();
    RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.PUT_KV_CONFIG,
        header);
    request.addExtField("namespace", "namespace");
    request.addExtField("key", "key");
    request.addExtField("value", "value");

    RemotingCommand response = defaultRequestProcessor.processRequest(null, request);

    assertThat(response.getCode()).isEqualTo(ResponseCode.SUCCESS);
    assertThat(response.getRemark()).isNull();

    assertThat(namesrvController.getKvConfigManager().getKVConfig("namespace", "key"))
        .isEqualTo("value");
}
 

private RemotingCommand wipeWritePermOfBroker(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(WipeWritePermOfBrokerResponseHeader.class);
    final WipeWritePermOfBrokerResponseHeader responseHeader = (WipeWritePermOfBrokerResponseHeader) response.readCustomHeader();
    final WipeWritePermOfBrokerRequestHeader requestHeader =
        (WipeWritePermOfBrokerRequestHeader) request.decodeCommandCustomHeader(WipeWritePermOfBrokerRequestHeader.class);

    int wipeTopicCnt = this.namesrvController.getRouteInfoManager().wipeWritePermOfBrokerByLock(requestHeader.getBrokerName());

    log.info("wipe write perm of broker[{}], client: {}, {}",
        requestHeader.getBrokerName(),
        RemotingHelper.parseChannelRemoteAddr(ctx.channel()),
        wipeTopicCnt);

    responseHeader.setWipeTopicCount(wipeTopicCnt);
    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}
 

private RemotingCommand queryTopicConsumeByWho(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    QueryTopicConsumeByWhoRequestHeader requestHeader =
        (QueryTopicConsumeByWhoRequestHeader) request.decodeCommandCustomHeader(QueryTopicConsumeByWhoRequestHeader.class);

    HashSet<String> groups = this.brokerController.getConsumerManager().queryTopicConsumeByWho(requestHeader.getTopic());

    Set<String> groupInOffset = this.brokerController.getConsumerOffsetManager().whichGroupByTopic(requestHeader.getTopic());
    if (groupInOffset != null && !groupInOffset.isEmpty()) {
        groups.addAll(groupInOffset);
    }

    GroupList groupList = new GroupList();
    groupList.setGroupList(groups);
    byte[] body = groupList.encode();

    response.setBody(body);
    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}
 

private RemotingCommand registerFilterServer(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(RegisterFilterServerResponseHeader.class);
    final RegisterFilterServerResponseHeader responseHeader = (RegisterFilterServerResponseHeader) response.readCustomHeader();
    final RegisterFilterServerRequestHeader requestHeader =
        (RegisterFilterServerRequestHeader) request.decodeCommandCustomHeader(RegisterFilterServerRequestHeader.class);

    this.brokerController.getFilterServerManager().registerFilterServer(ctx.channel(), requestHeader.getFilterServerAddr());

    responseHeader.setBrokerId(this.brokerController.getBrokerConfig().getBrokerId());
    responseHeader.setBrokerName(this.brokerController.getBrokerConfig().getBrokerName());

    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}
 

private synchronized RemotingCommand deleteTopic(ChannelHandlerContext ctx,
        RemotingCommand request) throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
        DeleteTopicRequestHeader requestHeader =
            (DeleteTopicRequestHeader) request.decodeCommandCustomHeader(DeleteTopicRequestHeader.class);

        log.info("deleteTopic called by {}", RemotingHelper.parseChannelRemoteAddr(ctx.channel()));

//        删除topic=》
        this.brokerController.getTopicConfigManager().deleteTopicConfig(requestHeader.getTopic());
//        删除客户端消息队列中的无用的topic=》
        this.brokerController.getMessageStore()
            .cleanUnusedTopic(this.brokerController.getTopicConfigManager().getTopicConfigTable().keySet());

        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
        return response;
    }
 

@Test
public void testProcessRequest_RegisterBroker() throws RemotingCommandException,
    NoSuchFieldException, IllegalAccessException {
    RemotingCommand request = genSampleRegisterCmd(true);

    ChannelHandlerContext ctx = mock(ChannelHandlerContext.class);
    when(ctx.channel()).thenReturn(null);

    RemotingCommand response = defaultRequestProcessor.processRequest(ctx, request);

    assertThat(response.getCode()).isEqualTo(ResponseCode.SUCCESS);
    assertThat(response.getRemark()).isNull();

    RouteInfoManager routes = namesrvController.getRouteInfoManager();
    Field brokerAddrTable = RouteInfoManager.class.getDeclaredField("brokerAddrTable");
    brokerAddrTable.setAccessible(true);

    BrokerData broker = new BrokerData();
    broker.setBrokerName("broker");
    broker.setBrokerAddrs((HashMap) Maps.newHashMap(new Long(2333), "10.10.1.1"));

    assertThat((Map) brokerAddrTable.get(routes))
        .contains(new HashMap.SimpleEntry("broker", broker));
}
 

private RemotingCommand queryTopicConsumeByWho(ChannelHandlerContext ctx,
        RemotingCommand request) throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
        QueryTopicConsumeByWhoRequestHeader requestHeader =
            (QueryTopicConsumeByWhoRequestHeader) request.decodeCommandCustomHeader(QueryTopicConsumeByWhoRequestHeader.class);

//      从消费组信息中根据topic查找消费者的消费组信息=》
        HashSet<String> groups = this.brokerController.getConsumerManager().queryTopicConsumeByWho(requestHeader.getTopic());

//        从offset信息中根据topic查询消费组=》
        Set<String> groupInOffset = this.brokerController.getConsumerOffsetManager().whichGroupByTopic(requestHeader.getTopic());
        if (groupInOffset != null && !groupInOffset.isEmpty()) {
            groups.addAll(groupInOffset);
        }

        GroupList groupList = new GroupList();
        groupList.setGroupList(groups);
        byte[] body = groupList.encode();

        response.setBody(body);
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
        return response;
    }
 

public RemotingCommand getKVConfig(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(GetKVConfigResponseHeader.class);
    final GetKVConfigResponseHeader responseHeader = (GetKVConfigResponseHeader) response.readCustomHeader();
    final GetKVConfigRequestHeader requestHeader =
        (GetKVConfigRequestHeader) request.decodeCommandCustomHeader(GetKVConfigRequestHeader.class);

    String value = this.namesrvController.getKvConfigManager().getKVConfig(
        requestHeader.getNamespace(),
        requestHeader.getKey()
    );

    if (value != null) {
        responseHeader.setValue(value);
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
        return response;
    }

    response.setCode(ResponseCode.QUERY_NOT_FOUND);
    response.setRemark("No config item, Namespace: " + requestHeader.getNamespace() + " Key: " + requestHeader.getKey());
    return response;
}
 

@Test
public void testProcessRequest_TopicNotExist() throws RemotingCommandException {
    brokerController.getTopicConfigManager().getTopicConfigTable().remove(topic);
    final RemotingCommand request = createPullMsgCommand(RequestCode.PULL_MESSAGE);
    RemotingCommand response = pullMessageProcessor.processRequest(handlerContext, request);
    assertThat(response).isNotNull();
    assertThat(response.getCode()).isEqualTo(ResponseCode.TOPIC_NOT_EXIST);
    assertThat(response.getRemark()).contains("topic[" + topic + "] not exist");
}
 

private RemotingCommand getUnitTopicList(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);

    byte[] body = this.namesrvController.getRouteInfoManager().getUnitTopics();

    response.setBody(body);
    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}
 

private RemotingCommand queryConsumerOffset(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
        final RemotingCommand response =
            RemotingCommand.createResponseCommand(QueryConsumerOffsetResponseHeader.class);
        final QueryConsumerOffsetResponseHeader responseHeader =
            (QueryConsumerOffsetResponseHeader) response.readCustomHeader();
        final QueryConsumerOffsetRequestHeader requestHeader =
            (QueryConsumerOffsetRequestHeader) request
                .decodeCommandCustomHeader(QueryConsumerOffsetRequestHeader.class);

//        查询offset=》
        long offset =
            this.brokerController.getConsumerOffsetManager().queryOffset(
                requestHeader.getConsumerGroup(), requestHeader.getTopic(), requestHeader.getQueueId());

        if (offset >= 0) {
            responseHeader.setOffset(offset);
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);
        } else {
//            获取最小的offset=》
            long minOffset =
                this.brokerController.getMessageStore().getMinOffsetInQueue(requestHeader.getTopic(),
                    requestHeader.getQueueId());
            if (minOffset <= 0
//                    检查持久化的offset=》
                && !this.brokerController.getMessageStore().checkInDiskByConsumeOffset(
                requestHeader.getTopic(), requestHeader.getQueueId(), 0)) {
                responseHeader.setOffset(0L);
                response.setCode(ResponseCode.SUCCESS);
                response.setRemark(null);
            } else {
                response.setCode(ResponseCode.QUERY_NOT_FOUND);
                response.setRemark("Not found, V3_0_6_SNAPSHOT maybe this group consumer boot first");
            }
        }

        return response;
    }
 

@Test
public void testProcessRequest_MsgWasRemoving() throws RemotingCommandException {
    GetMessageResult getMessageResult = createGetMessageResult();
    getMessageResult.setStatus(GetMessageStatus.MESSAGE_WAS_REMOVING);
    when(messageStore.getMessage(anyString(), anyString(), anyInt(), anyLong(), anyInt(), any(ExpressionMessageFilter.class))).thenReturn(getMessageResult);

    final RemotingCommand request = createPullMsgCommand(RequestCode.PULL_MESSAGE);
    RemotingCommand response = pullMessageProcessor.processRequest(handlerContext, request);
    assertThat(response).isNotNull();
    assertThat(response.getCode()).isEqualTo(ResponseCode.PULL_RETRY_IMMEDIATELY);
}
 

@Test
public void testProcessRequest_RegisterBrokerWithFilterServer() throws RemotingCommandException,
    NoSuchFieldException, IllegalAccessException {
    RemotingCommand request = genSampleRegisterCmd(true);

    // version >= MQVersion.Version.V3_0_11.ordinal() to register with filter server
    request.setVersion(100);

    ChannelHandlerContext ctx = mock(ChannelHandlerContext.class);
    when(ctx.channel()).thenReturn(null);

    RemotingCommand response = defaultRequestProcessor.processRequest(ctx, request);

    assertThat(response.getCode()).isEqualTo(ResponseCode.SUCCESS);
    assertThat(response.getRemark()).isNull();

    RouteInfoManager routes = namesrvController.getRouteInfoManager();
    Field brokerAddrTable = RouteInfoManager.class.getDeclaredField("brokerAddrTable");
    brokerAddrTable.setAccessible(true);

    BrokerData broker = new BrokerData();
    broker.setBrokerName("broker");
    broker.setBrokerAddrs((HashMap) Maps.newHashMap(new Long(2333), "10.10.1.1"));

    assertThat((Map) brokerAddrTable.get(routes))
        .contains(new HashMap.SimpleEntry("broker", broker));
}
 

public RemotingCommand checkClientConfig(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);

    CheckClientRequestBody requestBody = CheckClientRequestBody.decode(request.getBody(),
        CheckClientRequestBody.class);

    if (requestBody != null && requestBody.getSubscriptionData() != null) {
        SubscriptionData subscriptionData = requestBody.getSubscriptionData();

        if (ExpressionType.isTagType(subscriptionData.getExpressionType())) {
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);
            return response;
        }

        if (!this.brokerController.getBrokerConfig().isEnablePropertyFilter()) {
            response.setCode(ResponseCode.SYSTEM_ERROR);
            response.setRemark("The broker does not support consumer to filter message by " + subscriptionData.getExpressionType());
            return response;
        }

        try {
            FilterFactory.INSTANCE.get(subscriptionData.getExpressionType()).compile(subscriptionData.getSubString());
        } catch (Exception e) {
            log.warn("Client {}@{} filter message, but failed to compile expression! sub={}, error={}",
                requestBody.getClientId(), requestBody.getGroup(), requestBody.getSubscriptionData(), e.getMessage());
            response.setCode(ResponseCode.SUBSCRIPTION_PARSE_FAILED);
            response.setRemark(e.getMessage());
            return response;
        }
    }

    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}
 

/**
 * 获取集群下的所有的topic
 * @param ctx ctx
 * @param request request
 * @return ;
 * @throws RemotingCommandException ;
 */
private RemotingCommand getTopicsByCluster(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {

    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    final GetTopicsByClusterRequestHeader requestHeader =
        (GetTopicsByClusterRequestHeader) request.decodeCommandCustomHeader(GetTopicsByClusterRequestHeader.class);

    byte[] body = this.namesrvController.getRouteInfoManager().getTopicsByCluster(requestHeader.getCluster());

    response.setBody(body);
    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}
 

@Override
public RemotingCommand processRequest(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    switch (request.getCode()) {
        case RequestCode.GET_CONSUMER_LIST_BY_GROUP:
            return this.getConsumerListByGroup(ctx, request);
        case RequestCode.UPDATE_CONSUMER_OFFSET:
            return this.updateConsumerOffset(ctx, request);
        case RequestCode.QUERY_CONSUMER_OFFSET:
            return this.queryConsumerOffset(ctx, request);
        default:
            break;
    }
    return null;
}
 

@Test
public void testProcessRequest() throws RemotingCommandException {
    when(transactionMsgService.commitMessage(any(EndTransactionRequestHeader.class))).thenReturn(createResponse(ResponseCode.SUCCESS));
    when(messageStore.putMessage(any(MessageExtBrokerInner.class))).thenReturn(new PutMessageResult
        (PutMessageStatus.PUT_OK, new AppendMessageResult(AppendMessageStatus.PUT_OK)));
    RemotingCommand request = createEndTransactionMsgCommand(MessageSysFlag.TRANSACTION_COMMIT_TYPE, false);
    RemotingCommand response = endTransactionProcessor.processRequest(handlerContext, request);
    assertThat(response.getCode()).isEqualTo(ResponseCode.SUCCESS);
}
 

private RemotingCommand unlockBatchMQ(ChannelHandlerContext ctx,
        RemotingCommand request) throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
        UnlockBatchRequestBody requestBody = UnlockBatchRequestBody.decode(request.getBody(), UnlockBatchRequestBody.class);

//        =》
        this.brokerController.getRebalanceLockManager().unlockBatch(
            requestBody.getConsumerGroup(),
            requestBody.getMqSet(),
            requestBody.getClientId());

        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
        return response;
    }
 

@Override
public RemotingCommand processRequest(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    switch (request.getCode()) {
        case RequestCode.GET_CONSUMER_LIST_BY_GROUP:
            return this.getConsumerListByGroup(ctx, request);
        case RequestCode.UPDATE_CONSUMER_OFFSET:
            return this.updateConsumerOffset(ctx, request);
        case RequestCode.QUERY_CONSUMER_OFFSET:
            return this.queryConsumerOffset(ctx, request);
        default:
            break;
    }
    return null;
}
 

private RemotingCommand deleteSubscriptionGroup(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    DeleteSubscriptionGroupRequestHeader requestHeader =
        (DeleteSubscriptionGroupRequestHeader) request.decodeCommandCustomHeader(DeleteSubscriptionGroupRequestHeader.class);

    log.info("deleteSubscriptionGroup called by {}", RemotingHelper.parseChannelRemoteAddr(ctx.channel()));

    this.brokerController.getSubscriptionGroupManager().deleteSubscriptionGroupConfig(requestHeader.getGroupName());

    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}
 

private RemotingCommand getUnitTopicList(ChannelHandlerContext ctx,
        RemotingCommand request) throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(null);

//        =》
        byte[] body = this.namesrvController.getRouteInfoManager().getUnitTopics();

        response.setBody(body);
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
        return response;
    }