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项目结构调整 x 20 : 拆分出独立的 yudao-spring-boot-starter-mq 组件,整理更加清晰
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@ -1,23 +1,11 @@
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package cn.iocoder.yudao.framework.redis.config;
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import cn.hutool.system.SystemUtil;
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import cn.iocoder.yudao.framework.redis.core.pubsub.AbstractChannelMessageListener;
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import cn.iocoder.yudao.framework.redis.core.stream.AbstractStreamMessageListener;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.data.redis.connection.RedisConnectionFactory;
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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.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.serializer.RedisSerializer;
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import org.springframework.data.redis.stream.StreamMessageListenerContainer;
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import java.util.List;
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/**
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* Redis 配置类
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@ -44,76 +32,4 @@ public class YudaoRedisAutoConfiguration {
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return template;
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}
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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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public RedisMessageListenerContainer redisMessageListenerContainer(
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RedisConnectionFactory factory, List<AbstractChannelMessageListener<?>> 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(factory);
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// 添加监听器
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listeners.forEach(listener -> {
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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 集群消费的容器
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*
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* Redis Stream 的 xreadgroup 命令:https://www.geek-book.com/src/docs/redis/redis/redis.io/commands/xreadgroup.html
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*/
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@Bean(initMethod = "start", destroyMethod = "stop")
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public StreamMessageListenerContainer<String, ObjectRecord<String, String>> redisStreamMessageListenerContainer(
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RedisTemplate<String, Object> redisTemplate, List<AbstractStreamMessageListener<?>> listeners) {
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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 = StreamMessageListenerContainer.create(
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redisTemplate.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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// String consumerName = "110";
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listeners.forEach(listener -> {
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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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// 设置 listener 对应的 redisTemplate
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listener.setRedisTemplate(redisTemplate);
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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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});
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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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@ -1,71 +0,0 @@
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package cn.iocoder.yudao.framework.redis.core.pubsub;
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import cn.hutool.core.util.TypeUtil;
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import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
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import lombok.SneakyThrows;
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import org.springframework.data.redis.connection.Message;
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import org.springframework.data.redis.connection.MessageListener;
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import java.lang.reflect.Type;
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/**
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* Redis Pub/Sub 监听器抽象类,用于实现广播消费
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*
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* @param <T> 消息类型。一定要填写噢,不然会报错
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*
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* @author 芋道源码
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*/
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public abstract class AbstractChannelMessageListener<T extends ChannelMessage> implements MessageListener {
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/**
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* 消息类型
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*/
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private final Class<T> messageType;
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/**
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* Redis Channel
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*/
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private final String channel;
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@SneakyThrows
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protected AbstractChannelMessageListener() {
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this.messageType = getMessageClass();
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this.channel = messageType.newInstance().getChannel();
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}
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/**
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* 获得 Sub 订阅的 Redis Channel 通道
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*
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* @return channel
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*/
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public final String getChannel() {
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return channel;
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}
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@Override
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public final void onMessage(Message message, byte[] bytes) {
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T messageObj = JsonUtils.parseObject(message.getBody(), messageType);
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this.onMessage(messageObj);
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}
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/**
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* 处理消息
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*
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* @param message 消息
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*/
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public abstract void onMessage(T message);
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/**
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* 通过解析类上的泛型,获得消息类型
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*
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* @return 消息类型
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*/
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@SuppressWarnings("unchecked")
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private Class<T> getMessageClass() {
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Type type = TypeUtil.getTypeArgument(getClass(), 0);
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if (type == null) {
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throw new IllegalStateException(String.format("类型(%s) 需要设置消息类型", getClass().getName()));
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}
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return (Class<T>) type;
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}
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}
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@ -1,20 +0,0 @@
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package cn.iocoder.yudao.framework.redis.core.pubsub;
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import com.fasterxml.jackson.annotation.JsonIgnore;
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/**
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* Redis Channel Message 接口
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*
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* @author 芋道源码
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*/
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public interface ChannelMessage {
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/**
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* 获得 Redis Channel
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*
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* @return Channel
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*/
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@JsonIgnore // 避免序列化
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String getChannel();
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}
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@ -1,88 +0,0 @@
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package cn.iocoder.yudao.framework.redis.core.stream;
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import cn.hutool.core.util.TypeUtil;
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import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
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import lombok.Getter;
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import lombok.Setter;
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import lombok.SneakyThrows;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.data.redis.connection.stream.ObjectRecord;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.data.redis.stream.StreamListener;
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import java.lang.reflect.Type;
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/**
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* Redis Stream 监听器抽象类,用于实现集群消费
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*
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* @param <T> 消息类型。一定要填写噢,不然会报错
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*
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* @author 芋道源码
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*/
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public abstract class AbstractStreamMessageListener<T extends StreamMessage>
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implements StreamListener<String, ObjectRecord<String, String>> {
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/**
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* 消息类型
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*/
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private final Class<T> messageType;
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/**
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* Redis Channel
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*/
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@Getter
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private final String streamKey;
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/**
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* Redis 消费者分组,默认使用 spring.application.name 名字
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*/
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@Value("${spring.application.name}")
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@Getter
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private String group;
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/**
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*
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*/
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@Setter
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private RedisTemplate<String, ?> redisTemplate;
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@SneakyThrows
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protected AbstractStreamMessageListener() {
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this.messageType = getMessageClass();
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this.streamKey = messageType.newInstance().getStreamKey();
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}
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@Override
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public void onMessage(ObjectRecord<String, String> message) {
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// 消费消息
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T messageObj = JsonUtils.parseObject(message.getValue(), messageType);
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this.onMessage(messageObj);
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// ack 消息消费完成
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redisTemplate.opsForStream().acknowledge(group, message);
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// TODO 芋艿:需要额外考虑以下几个点:
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// 1. 处理异常的情况
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// 2. 发送日志;以及事务的结合
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// 3. 消费日志;以及通用的幂等性
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// 4. 消费失败的重试,https://zhuanlan.zhihu.com/p/60501638
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}
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/**
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* 处理消息
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*
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* @param message 消息
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*/
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public abstract void onMessage(T message);
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/**
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* 通过解析类上的泛型,获得消息类型
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*
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* @return 消息类型
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*/
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@SuppressWarnings("unchecked")
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private Class<T> getMessageClass() {
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Type type = TypeUtil.getTypeArgument(getClass(), 0);
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if (type == null) {
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throw new IllegalStateException(String.format("类型(%s) 需要设置消息类型", getClass().getName()));
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}
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return (Class<T>) type;
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}
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}
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@ -1,20 +0,0 @@
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package cn.iocoder.yudao.framework.redis.core.stream;
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import com.fasterxml.jackson.annotation.JsonIgnore;
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/**
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* Redis Stream Message 接口
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*
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* @author 芋道源码
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*/
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public interface StreamMessage {
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/**
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* 获得 Redis Stream Key
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*
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* @return Channel
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*/
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@JsonIgnore // 避免序列化
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String getStreamKey();
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}
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package cn.iocoder.yudao.framework.redis.core.util;
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import cn.iocoder.yudao.framework.redis.core.pubsub.ChannelMessage;
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import cn.iocoder.yudao.framework.redis.core.stream.StreamMessage;
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import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
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import org.springframework.data.redis.connection.stream.RecordId;
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import org.springframework.data.redis.connection.stream.StreamRecords;
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import org.springframework.data.redis.core.RedisTemplate;
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/**
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* Redis 消息工具类
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*
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* @author 芋道源码
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*/
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public class RedisMessageUtils {
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/**
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* 发送 Redis 消息,基于 Redis pub/sub 实现
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*
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* @param redisTemplate Redis 操作模板
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* @param message 消息
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*/
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public static <T extends ChannelMessage> void sendChannelMessage(RedisTemplate<?, ?> redisTemplate, T message) {
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redisTemplate.convertAndSend(message.getChannel(), JsonUtils.toJsonString(message));
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}
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/**
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* 发送 Redis 消息,基于 Redis Stream 实现
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*
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* @param redisTemplate Redis 操作模板
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* @param message 消息
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* @return 消息记录的编号对象
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*/
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public static <T extends StreamMessage> RecordId sendStreamMessage(RedisTemplate<String, ?> redisTemplate, T message) {
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return redisTemplate.opsForStream().add(StreamRecords.newRecord()
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.ofObject(JsonUtils.toJsonString(message)) // 设置内容
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.withStreamKey(message.getStreamKey())); // 设置 stream key
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}
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}
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