/
ClientManageProcessor.java
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/
ClientManageProcessor.java
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/*
* 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.broker.processor;
import io.netty.channel.ChannelHandlerContext;
import org.apache.rocketmq.broker.BrokerController;
import org.apache.rocketmq.broker.client.ClientChannelInfo;
import org.apache.rocketmq.common.MixAll;
import org.apache.rocketmq.common.constant.LoggerName;
import org.apache.rocketmq.common.constant.PermName;
import org.apache.rocketmq.common.filter.ExpressionType;
import org.apache.rocketmq.common.protocol.RequestCode;
import org.apache.rocketmq.common.protocol.ResponseCode;
import org.apache.rocketmq.common.protocol.body.CheckClientRequestBody;
import org.apache.rocketmq.common.protocol.header.UnregisterClientRequestHeader;
import org.apache.rocketmq.common.protocol.header.UnregisterClientResponseHeader;
import org.apache.rocketmq.common.protocol.heartbeat.ConsumerData;
import org.apache.rocketmq.common.protocol.heartbeat.HeartbeatData;
import org.apache.rocketmq.common.protocol.heartbeat.ProducerData;
import org.apache.rocketmq.common.protocol.heartbeat.SubscriptionData;
import org.apache.rocketmq.common.subscription.SubscriptionGroupConfig;
import org.apache.rocketmq.common.sysflag.TopicSysFlag;
import org.apache.rocketmq.filter.FilterFactory;
import org.apache.rocketmq.logging.InternalLogger;
import org.apache.rocketmq.logging.InternalLoggerFactory;
import org.apache.rocketmq.remoting.common.RemotingHelper;
import org.apache.rocketmq.remoting.exception.RemotingCommandException;
import org.apache.rocketmq.remoting.netty.NettyRequestProcessor;
import org.apache.rocketmq.remoting.protocol.RemotingCommand;
public class ClientManageProcessor implements NettyRequestProcessor {
private static final InternalLogger log = InternalLoggerFactory.getLogger(LoggerName.BROKER_LOGGER_NAME);
private final BrokerController brokerController;
public ClientManageProcessor(final BrokerController brokerController) {
this.brokerController = brokerController;
}
@Override
public RemotingCommand processRequest(ChannelHandlerContext ctx, RemotingCommand request)
throws RemotingCommandException {
switch (request.getCode()) {
case RequestCode.HEART_BEAT:
return this.heartBeat(ctx, request);
case RequestCode.UNREGISTER_CLIENT:
return this.unregisterClient(ctx, request);
case RequestCode.CHECK_CLIENT_CONFIG:
return this.checkClientConfig(ctx, request);
default:
break;
}
return null;
}
@Override
public boolean rejectRequest() {
return false;
}
public RemotingCommand heartBeat(ChannelHandlerContext ctx, RemotingCommand request) {
RemotingCommand response = RemotingCommand.createResponseCommand(null);
HeartbeatData heartbeatData = HeartbeatData.decode(request.getBody(), HeartbeatData.class);
ClientChannelInfo clientChannelInfo = new ClientChannelInfo(
ctx.channel(),
heartbeatData.getClientID(),
request.getLanguage(),
request.getVersion()
);
for (ConsumerData data : heartbeatData.getConsumerDataSet()) {
SubscriptionGroupConfig subscriptionGroupConfig =
this.brokerController.getSubscriptionGroupManager().findSubscriptionGroupConfig(
data.getGroupName());
boolean isNotifyConsumerIdsChangedEnable = true;
if (null != subscriptionGroupConfig) {
isNotifyConsumerIdsChangedEnable = subscriptionGroupConfig.isNotifyConsumerIdsChangedEnable();
int topicSysFlag = 0;
if (data.isUnitMode()) {
topicSysFlag = TopicSysFlag.buildSysFlag(false, true);
}
String newTopic = MixAll.getRetryTopic(data.getGroupName());
this.brokerController.getTopicConfigManager().createTopicInSendMessageBackMethod(
newTopic,
subscriptionGroupConfig.getRetryQueueNums(),
PermName.PERM_WRITE | PermName.PERM_READ, topicSysFlag);
}
boolean changed = this.brokerController.getConsumerManager().registerConsumer(
data.getGroupName(),
clientChannelInfo,
data.getConsumeType(),
data.getMessageModel(),
data.getConsumeFromWhere(),
data.getSubscriptionDataSet(),
isNotifyConsumerIdsChangedEnable
);
if (changed) {
log.info("registerConsumer info changed {} {}",
data.toString(),
RemotingHelper.parseChannelRemoteAddr(ctx.channel())
);
}
}
for (ProducerData data : heartbeatData.getProducerDataSet()) {
this.brokerController.getProducerManager().registerProducer(data.getGroupName(),
clientChannelInfo);
}
response.setCode(ResponseCode.SUCCESS);
response.setRemark(null);
return response;
}
public RemotingCommand unregisterClient(ChannelHandlerContext ctx, RemotingCommand request)
throws RemotingCommandException {
final RemotingCommand response =
RemotingCommand.createResponseCommand(UnregisterClientResponseHeader.class);
final UnregisterClientRequestHeader requestHeader =
(UnregisterClientRequestHeader) request
.decodeCommandCustomHeader(UnregisterClientRequestHeader.class);
ClientChannelInfo clientChannelInfo = new ClientChannelInfo(
ctx.channel(),
requestHeader.getClientID(),
request.getLanguage(),
request.getVersion());
{
final String group = requestHeader.getProducerGroup();
if (group != null) {
this.brokerController.getProducerManager().unregisterProducer(group, clientChannelInfo);
}
}
{
final String group = requestHeader.getConsumerGroup();
if (group != null) {
SubscriptionGroupConfig subscriptionGroupConfig =
this.brokerController.getSubscriptionGroupManager().findSubscriptionGroupConfig(group);
boolean isNotifyConsumerIdsChangedEnable = true;
if (null != subscriptionGroupConfig) {
isNotifyConsumerIdsChangedEnable = subscriptionGroupConfig.isNotifyConsumerIdsChangedEnable();
}
this.brokerController.getConsumerManager().unregisterConsumer(group, clientChannelInfo, isNotifyConsumerIdsChangedEnable);
}
}
response.setCode(ResponseCode.SUCCESS);
response.setRemark(null);
return response;
}
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;
}
}