/*
* 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.client.impl;
import java.nio.ByteBuffer;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import org.apache.rocketmq.client.QueryResult;
import org.apache.rocketmq.client.exception.MQBrokerException;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.client.impl.factory.MQClientInstance;
import org.apache.rocketmq.client.impl.producer.TopicPublishInfo;
import org.apache.rocketmq.client.log.ClientLogger;
import org.apache.rocketmq.common.MixAll;
import org.apache.rocketmq.common.TopicConfig;
import org.apache.rocketmq.common.help.FAQUrl;
import org.apache.rocketmq.common.message.MessageClientIDSetter;
import org.apache.rocketmq.common.message.MessageConst;
import org.apache.rocketmq.common.message.MessageDecoder;
import org.apache.rocketmq.common.message.MessageExt;
import org.apache.rocketmq.common.message.MessageId;
import org.apache.rocketmq.common.message.MessageQueue;
import org.apache.rocketmq.common.protocol.ResponseCode;
import org.apache.rocketmq.common.protocol.header.QueryMessageRequestHeader;
import org.apache.rocketmq.common.protocol.header.QueryMessageResponseHeader;
import org.apache.rocketmq.common.protocol.route.BrokerData;
import org.apache.rocketmq.common.protocol.route.TopicRouteData;
import org.apache.rocketmq.remoting.InvokeCallback;
import org.apache.rocketmq.remoting.common.RemotingUtil;
import org.apache.rocketmq.remoting.exception.RemotingCommandException;
import org.apache.rocketmq.remoting.exception.RemotingException;
import org.apache.rocketmq.remoting.netty.ResponseFuture;
import org.apache.rocketmq.remoting.protocol.RemotingCommand;
import org.slf4j.Logger;
public class MQAdminImpl {
private final Logger log = ClientLogger.getLog();
private final MQClientInstance mQClientFactory;
private long timeoutMillis = 6000;
public MQAdminImpl(MQClientInstance mQClientFactory) {
this.mQClientFactory = mQClientFactory;
}
public long getTimeoutMillis() {
return timeoutMillis;
}
public void setTimeoutMillis(long timeoutMillis) {
this.timeoutMillis = timeoutMillis;
}
public void createTopic(String key, String newTopic, int queueNum) throws MQClientException {
createTopic(key, newTopic, queueNum, 0);
}
public void createTopic(String key, String newTopic, int queueNum, int topicSysFlag) throws MQClientException {
try {
TopicRouteData topicRouteData = this.mQClientFactory.getMQClientAPIImpl().getTopicRouteInfoFromNameServer(key, timeoutMillis);
List<BrokerData> brokerDataList = topicRouteData.getBrokerDatas();
if (brokerDataList != null && !brokerDataList.isEmpty()) {
Collections.sort(brokerDataList);
boolean createOKAtLeastOnce = false;
MQClientException exception = null;
StringBuilder orderTopicString = new StringBuilder();
for (BrokerData brokerData : brokerDataList) {
String addr = brokerData.getBrokerAddrs().get(MixAll.MASTER_ID);
if (addr != null) {
TopicConfig topicConfig = new TopicConfig(newTopic);
topicConfig.setReadQueueNums(queueNum);
topicConfig.setWriteQueueNums(queueNum);
topicConfig.setTopicSysFlag(topicSysFlag);
boolean createOK = false;
for (int i = 0; i < 5; i++) {
try {
this.mQClientFactory.getMQClientAPIImpl().createTopic(addr, key, topicConfig, timeoutMillis);
createOK = true;
createOKAtLeastOnce = true;
break;
} catch (Exception e) {
if (4 == i) {
exception = new MQClientException("create topic to broker exception", e);
}
}
}
if (createOK) {
orderTopicString.append(brokerData.getBrokerName());
orderTopicString.append(":");
orderTopicString.append(queueNum);
orderTopicString.append(";");
}
}
}
if (exception != null && !createOKAtLeastOnce) {
throw exception;
}
} else {
throw new MQClientException("Not found broker, maybe key is wrong", null);
}
} catch (Exception e) {
throw new MQClientException("create new topic failed", e);
}
}
public List<MessageQueue> fetchPublishMessageQueues(String topic) throws MQClientException {
try {
TopicRouteData topicRouteData = this.mQClientFactory.getMQClientAPIImpl().getTopicRouteInfoFromNameServer(topic, timeoutMillis);
if (topicRouteData != null) {
TopicPublishInfo topicPublishInfo = MQClientInstance.topicRouteData2TopicPublishInfo(topic, topicRouteData);
if (topicPublishInfo != null && topicPublishInfo.ok()) {
return topicPublishInfo.getMessageQueueList();
}
}
} catch (Exception e) {
throw new MQClientException("Can not find Message Queue for this topic, " + topic, e);
}
throw new MQClientException("Unknow why, Can not find Message Queue for this topic, " + topic, null);
}
public Set<MessageQueue> fetchSubscribeMessageQueues(String topic) throws MQClientException {
try {
TopicRouteData topicRouteData = this.mQClientFactory.getMQClientAPIImpl().getTopicRouteInfoFromNameServer(topic, timeoutMillis);
if (topicRouteData != null) {
Set<MessageQueue> mqList = MQClientInstance.topicRouteData2TopicSubscribeInfo(topic, topicRouteData);
if (!mqList.isEmpty()) {
return mqList;
} else {
throw new MQClientException("Can not find Message Queue for this topic, " + topic + " Namesrv return empty", null);
}
}
} catch (Exception e) {
throw new MQClientException(
"Can not find Message Queue for this topic, " + topic + FAQUrl.suggestTodo(FAQUrl.MQLIST_NOT_EXIST), //
e);
}
throw new MQClientException("Unknow why, Can not find Message Queue for this topic, " + topic, null);
}
public long searchOffset(MessageQueue mq, long timestamp) throws MQClientException {
String brokerAddr = this.mQClientFactory.findBrokerAddressInPublish(mq.getBrokerName());
if (null == brokerAddr) {
this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
brokerAddr = this.mQClientFactory.findBrokerAddressInPublish(mq.getBrokerName());
}
if (brokerAddr != null) {
try {
return this.mQClientFactory.getMQClientAPIImpl().searchOffset(brokerAddr, mq.getTopic(), mq.getQueueId(), timestamp,
timeoutMillis);
} catch (Exception e) {
throw new MQClientException("Invoke Broker[" + brokerAddr + "] exception", e);
}
}
throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
}
public long maxOffset(MessageQueue mq) throws MQClientException {
String brokerAddr = this.mQClientFactory.findBrokerAddressInPublish(mq.getBrokerName());
if (null == brokerAddr) {
this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
brokerAddr = this.mQClientFactory.findBrokerAddressInPublish(mq.getBrokerName());
}
if (brokerAddr != null) {
try {
return this.mQClientFactory.getMQClientAPIImpl().getMaxOffset(brokerAddr, mq.getTopic(), mq.getQueueId(), timeoutMillis);
} catch (Exception e) {
throw new MQClientException("Invoke Broker[" + brokerAddr + "] exception", e);
}
}
throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
}
public long minOffset(MessageQueue mq) throws MQClientException {
String brokerAddr = this.mQClientFactory.findBrokerAddressInPublish(mq.getBrokerName());
if (null == brokerAddr) {
this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
brokerAddr = this.mQClientFactory.findBrokerAddressInPublish(mq.getBrokerName());
}
if (brokerAddr != null) {
try {
return this.mQClientFactory.getMQClientAPIImpl().getMinOffset(brokerAddr, mq.getTopic(), mq.getQueueId(), timeoutMillis);
} catch (Exception e) {
throw new MQClientException("Invoke Broker[" + brokerAddr + "] exception", e);
}
}
throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
}
public long earliestMsgStoreTime(MessageQueue mq) throws MQClientException {
String brokerAddr = this.mQClientFactory.findBrokerAddressInPublish(mq.getBrokerName());
if (null == brokerAddr) {
this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
brokerAddr = this.mQClientFactory.findBrokerAddressInPublish(mq.getBrokerName());
}
if (brokerAddr != null) {
try {
return this.mQClientFactory.getMQClientAPIImpl().getEarliestMsgStoretime(brokerAddr, mq.getTopic(), mq.getQueueId(),
timeoutMillis);
} catch (Exception e) {
throw new MQClientException("Invoke Broker[" + brokerAddr + "] exception", e);
}
}
throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
}
public MessageExt viewMessage(String msgId) throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
MessageId messageId = null;
try {
messageId = MessageDecoder.decodeMessageId(msgId);
} catch (Exception e) {
throw new MQClientException(ResponseCode.NO_MESSAGE, "query message by id finished, but no message.");
}
return this.mQClientFactory.getMQClientAPIImpl().viewMessage(RemotingUtil.socketAddress2String(messageId.getAddress()),
messageId.getOffset(), timeoutMillis);
}
public QueryResult queryMessage(String topic, String key, int maxNum, long begin, long end) throws MQClientException,
InterruptedException {
return queryMessage(topic, key, maxNum, begin, end, false);
}
public MessageExt queryMessageByUniqKey(String topic, String uniqKey) throws InterruptedException, MQClientException {
QueryResult qr = this.queryMessage(topic, uniqKey, 32,
MessageClientIDSetter.getNearlyTimeFromID(uniqKey).getTime() - 1000, Long.MAX_VALUE, true);
if (qr != null && qr.getMessageList() != null && qr.getMessageList().size() > 0) {
return qr.getMessageList().get(0);
} else {
return null;
}
}
protected QueryResult queryMessage(String topic, String key, int maxNum, long begin, long end, boolean isUniqKey) throws MQClientException,
InterruptedException {
TopicRouteData topicRouteData = this.mQClientFactory.getAnExistTopicRouteData(topic);
if (null == topicRouteData) {
this.mQClientFactory.updateTopicRouteInfoFromNameServer(topic);
topicRouteData = this.mQClientFactory.getAnExistTopicRouteData(topic);
}
if (topicRouteData != null) {
List<String> brokerAddrs = new LinkedList<String>();
for (BrokerData brokerData : topicRouteData.getBrokerDatas()) {
String addr = brokerData.selectBrokerAddr();
if (addr != null) {
brokerAddrs.add(addr);
}
}
if (!brokerAddrs.isEmpty()) {
final CountDownLatch countDownLatch = new CountDownLatch(brokerAddrs.size());
final List<QueryResult> queryResultList = new LinkedList<QueryResult>();
final ReadWriteLock lock = new ReentrantReadWriteLock(false);
for (String addr : brokerAddrs) {
try {
QueryMessageRequestHeader requestHeader = new QueryMessageRequestHeader();
requestHeader.setTopic(topic);
requestHeader.setKey(key);
requestHeader.setMaxNum(maxNum);
requestHeader.setBeginTimestamp(begin);
requestHeader.setEndTimestamp(end);
this.mQClientFactory.getMQClientAPIImpl().queryMessage(addr, requestHeader, timeoutMillis * 3,
new InvokeCallback() {
@Override
public void operationComplete(ResponseFuture responseFuture) {
try {
RemotingCommand response = responseFuture.getResponseCommand();
if (response != null) {
switch (response.getCode()) {
case ResponseCode.SUCCESS: {
QueryMessageResponseHeader responseHeader = null;
try {
responseHeader =
(QueryMessageResponseHeader) response
.decodeCommandCustomHeader(QueryMessageResponseHeader.class);
} catch (RemotingCommandException e) {
log.error("decodeCommandCustomHeader exception", e);
return;
}
List<MessageExt> wrappers =
MessageDecoder.decodes(ByteBuffer.wrap(response.getBody()), true);
QueryResult qr = new QueryResult(responseHeader.getIndexLastUpdateTimestamp(), wrappers);
try {
lock.writeLock().lock();
queryResultList.add(qr);
} finally {
lock.writeLock().unlock();
}
break;
}
default:
log.warn("getResponseCommand failed, {} {}", response.getCode(), response.getRemark());
break;
}
} else {
log.warn("getResponseCommand return null");
}
} finally {
countDownLatch.countDown();
}
}
}, isUniqKey);
} catch (Exception e) {
log.warn("queryMessage exception", e);
}
}
boolean ok = countDownLatch.await(timeoutMillis * 4, TimeUnit.MILLISECONDS);
if (!ok) {
log.warn("queryMessage, maybe some broker failed");
}
long indexLastUpdateTimestamp = 0;
List<MessageExt> messageList = new LinkedList<MessageExt>();
for (QueryResult qr : queryResultList) {
if (qr.getIndexLastUpdateTimestamp() > indexLastUpdateTimestamp) {
indexLastUpdateTimestamp = qr.getIndexLastUpdateTimestamp();
}
//通过uniqueKey查询消息得到了多个消结果,结果按照存储时间排列
for (MessageExt msgExt : qr.getMessageList()) {
if (isUniqKey) {
if (msgExt.getMsgId().equals(key)) {
if (messageList.size() > 0) {
//优先选择存储时间最早的
if (messageList.get(0).getStoreTimestamp() > msgExt.getStoreTimestamp()) {
messageList.clear();
messageList.add(msgExt);
}
} else {
messageList.add(msgExt);
}
} else {
log.warn("queryMessage by uniqKey, find message key not matched, maybe hash duplicate {}", msgExt.toString());
}
} else {
String keys = msgExt.getKeys();
if (keys != null) {
boolean matched = false;
String[] keyArray = keys.split(MessageConst.KEY_SEPARATOR);
if (keyArray != null) {
for (String k : keyArray) {
if (key.equals(k)) {
matched = true;
break;
}
}
}
if (matched) {
messageList.add(msgExt);
} else {
log.warn("queryMessage, find message key not matched, maybe hash duplicate {}", msgExt.toString());
}
}
}
}
}
if (!messageList.isEmpty()) {
return new QueryResult(indexLastUpdateTimestamp, messageList);
} else {
throw new MQClientException(ResponseCode.NO_MESSAGE, "query message by key finished, but no message.");
}
}
}
throw new MQClientException(ResponseCode.TOPIC_NOT_EXIST, "The topic[" + topic + "] not matched route info");
}
}
