package com.iailab.framework.mq.redis.config;
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import cn.hutool.core.map.MapUtil;
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import cn.hutool.core.util.StrUtil;
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import cn.hutool.system.SystemUtil;
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import com.iailab.framework.common.enums.DocumentEnum;
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import com.iailab.framework.mq.redis.core.RedisMQTemplate;
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import com.iailab.framework.mq.redis.core.job.RedisPendingMessageResendJob;
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import com.iailab.framework.mq.redis.core.pubsub.AbstractRedisChannelMessageListener;
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import com.iailab.framework.mq.redis.core.stream.AbstractRedisStreamMessageListener;
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import com.iailab.framework.redis.config.IailabRedisAutoConfiguration;
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import lombok.extern.slf4j.Slf4j;
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import org.redisson.api.RedissonClient;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.boot.autoconfigure.AutoConfiguration;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
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import org.springframework.context.annotation.Bean;
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import org.springframework.data.redis.connection.RedisServerCommands;
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import org.springframework.data.redis.connection.stream.Consumer;
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import org.springframework.data.redis.connection.stream.ObjectRecord;
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import org.springframework.data.redis.connection.stream.ReadOffset;
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import org.springframework.data.redis.connection.stream.StreamOffset;
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import org.springframework.data.redis.core.RedisCallback;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.data.redis.listener.ChannelTopic;
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import org.springframework.data.redis.listener.RedisMessageListenerContainer;
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import org.springframework.data.redis.stream.StreamMessageListenerContainer;
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import org.springframework.scheduling.annotation.EnableScheduling;
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import java.util.List;
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import java.util.Properties;
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/**
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* Redis 消息队列 Consumer 配置类
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*
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* @author iailab
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*/
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@Slf4j
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@EnableScheduling // 启用定时任务,用于 RedisPendingMessageResendJob 重发消息
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@AutoConfiguration(after = IailabRedisAutoConfiguration.class)
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public class IailabRedisMQConsumerAutoConfiguration {
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/**
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* 创建 Redis Pub/Sub 广播消费的容器
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*/
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@Bean
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@ConditionalOnBean(AbstractRedisChannelMessageListener.class) // 只有 AbstractChannelMessageListener 存在的时候,才需要注册 Redis pubsub 监听
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public RedisMessageListenerContainer redisMessageListenerContainer(
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RedisMQTemplate redisMQTemplate, List<AbstractRedisChannelMessageListener<?>> listeners) {
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// 创建 RedisMessageListenerContainer 对象
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RedisMessageListenerContainer container = new RedisMessageListenerContainer();
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// 设置 RedisConnection 工厂。
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container.setConnectionFactory(redisMQTemplate.getRedisTemplate().getRequiredConnectionFactory());
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// 添加监听器
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listeners.forEach(listener -> {
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listener.setRedisMQTemplate(redisMQTemplate);
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container.addMessageListener(listener, new ChannelTopic(listener.getChannel()));
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log.info("[redisMessageListenerContainer][注册 Channel({}) 对应的监听器({})]",
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listener.getChannel(), listener.getClass().getName());
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});
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return container;
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}
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/**
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* 创建 Redis Stream 重新消费的任务
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*/
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@Bean
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@ConditionalOnBean(AbstractRedisStreamMessageListener.class) // 只有 AbstractStreamMessageListener 存在的时候,才需要注册 Redis pubsub 监听
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public RedisPendingMessageResendJob redisPendingMessageResendJob(List<AbstractRedisStreamMessageListener<?>> listeners,
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RedisMQTemplate redisTemplate,
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@Value("${spring.application.name}") String groupName,
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RedissonClient redissonClient) {
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return new RedisPendingMessageResendJob(listeners, redisTemplate, groupName, redissonClient);
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}
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/**
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* 创建 Redis Stream 集群消费的容器
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*
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* 基础知识:<a href="https://www.geek-book.com/src/docs/redis/redis/redis.io/commands/xreadgroup.html">Redis Stream 的 xreadgroup 命令</a>
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*/
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@Bean(initMethod = "start", destroyMethod = "stop")
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@ConditionalOnBean(AbstractRedisStreamMessageListener.class) // 只有 AbstractStreamMessageListener 存在的时候,才需要注册 Redis pubsub 监听
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public StreamMessageListenerContainer<String, ObjectRecord<String, String>> redisStreamMessageListenerContainer(
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RedisMQTemplate redisMQTemplate, List<AbstractRedisStreamMessageListener<?>> listeners) {
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RedisTemplate<String, ?> redisTemplate = redisMQTemplate.getRedisTemplate();
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checkRedisVersion(redisTemplate);
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// 第一步,创建 StreamMessageListenerContainer 容器
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// 创建 options 配置
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StreamMessageListenerContainer.StreamMessageListenerContainerOptions<String, ObjectRecord<String, String>> containerOptions =
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StreamMessageListenerContainer.StreamMessageListenerContainerOptions.builder()
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.batchSize(10) // 一次性最多拉取多少条消息
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.targetType(String.class) // 目标类型。统一使用 String,通过自己封装的 AbstractStreamMessageListener 去反序列化
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.build();
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// 创建 container 对象
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StreamMessageListenerContainer<String, ObjectRecord<String, String>> container =
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StreamMessageListenerContainer.create(redisMQTemplate.getRedisTemplate().getRequiredConnectionFactory(), containerOptions);
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// 第二步,注册监听器,消费对应的 Stream 主题
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String consumerName = buildConsumerName();
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listeners.parallelStream().forEach(listener -> {
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log.info("[redisStreamMessageListenerContainer][开始注册 StreamKey({}) 对应的监听器({})]",
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listener.getStreamKey(), listener.getClass().getName());
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// 创建 listener 对应的消费者分组
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try {
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redisTemplate.opsForStream().createGroup(listener.getStreamKey(), listener.getGroup());
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} catch (Exception ignore) {
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}
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// 设置 listener 对应的 redisTemplate
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listener.setRedisMQTemplate(redisMQTemplate);
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// 创建 Consumer 对象
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Consumer consumer = Consumer.from(listener.getGroup(), consumerName);
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// 设置 Consumer 消费进度,以最小消费进度为准
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StreamOffset<String> streamOffset = StreamOffset.create(listener.getStreamKey(), ReadOffset.lastConsumed());
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// 设置 Consumer 监听
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StreamMessageListenerContainer.StreamReadRequestBuilder<String> builder = StreamMessageListenerContainer.StreamReadRequest
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.builder(streamOffset).consumer(consumer)
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.autoAcknowledge(false) // 不自动 ack
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.cancelOnError(throwable -> false); // 默认配置,发生异常就取消消费,显然不符合预期;因此,我们设置为 false
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container.register(builder.build(), listener);
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log.info("[redisStreamMessageListenerContainer][完成注册 StreamKey({}) 对应的监听器({})]",
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listener.getStreamKey(), listener.getClass().getName());
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});
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return container;
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}
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/**
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* 构建消费者名字,使用本地 IP + 进程编号的方式。
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* 参考自 RocketMQ clientId 的实现
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*
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* @return 消费者名字
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*/
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private static String buildConsumerName() {
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return String.format("%s@%d", SystemUtil.getHostInfo().getAddress(), SystemUtil.getCurrentPID());
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}
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/**
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* 校验 Redis 版本号,是否满足最低的版本号要求!
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*/
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private static void checkRedisVersion(RedisTemplate<String, ?> redisTemplate) {
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// 获得 Redis 版本
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Properties info = redisTemplate.execute((RedisCallback<Properties>) RedisServerCommands::info);
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String version = MapUtil.getStr(info, "redis_version");
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// 校验最低版本必须大于等于 5.0.0
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int majorVersion = Integer.parseInt(StrUtil.subBefore(version, '.', false));
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if (majorVersion < 5) {
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throw new IllegalStateException(StrUtil.format("您当前的 Redis 版本为 {},小于最低要求的 5.0.0 版本!" +
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"请参考 {} 文档进行安装。", version, DocumentEnum.REDIS_INSTALL.getUrl()));
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}
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}
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}
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