spring-data-redis LettuceReactivePubSubCommands 源码
spring-data-redis LettuceReactivePubSubCommands 代码
文件路径：/src/main/java/org/springframework/data/redis/connection/lettuce/LettuceReactivePubSubCommands.java
/*
* Copyright 2018-2022 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.data.redis.connection.lettuce;
import io.lettuce.core.pubsub.api.reactive.RedisPubSubReactiveCommands;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import java.nio.ByteBuffer;
import java.util.function.Function;
import org.reactivestreams.Publisher;
import org.springframework.data.redis.connection.ReactivePubSubCommands;
import org.springframework.data.redis.connection.ReactiveSubscription;
import org.springframework.data.redis.connection.ReactiveSubscription.ChannelMessage;
import org.springframework.data.redis.connection.SubscriptionListener;
import org.springframework.util.Assert;
/**
* @author Mark Paluch
* @author Christoph Strobl
* @since 2.1
*/
class LettuceReactivePubSubCommands implements ReactivePubSubCommands {
private final LettuceReactiveRedisConnection connection;
LettuceReactivePubSubCommands(LettuceReactiveRedisConnection connection) {
this.connection = connection;
}
@Override
public Mono<ReactiveSubscription> createSubscription(SubscriptionListener listener) {
return connection.getPubSubConnection()
.map(pubSubConnection -> new LettuceReactiveSubscription(listener, pubSubConnection,
connection.translateException()));
}
@Override
public Flux<Long> publish(Publisher<ChannelMessage<ByteBuffer, ByteBuffer>> messageStream) {
Assert.notNull(messageStream, "ChannelMessage stream must not be null");
return connection.getCommands().flatMapMany(commands -> Flux.from(messageStream)
.flatMap(message -> commands.publish(message.getChannel(), message.getMessage())));
}
@Override
public Mono<Void> subscribe(ByteBuffer... channels) {
Assert.notNull(channels, "Channels must not be null");
return doWithPubSub(commands -> commands.subscribe(channels));
}
@Override
public Mono<Void> pSubscribe(ByteBuffer... patterns) {
Assert.notNull(patterns, "Patterns must not be null");
return doWithPubSub(commands -> commands.psubscribe(patterns));
}
private <T> Mono<T> doWithPubSub(Function<RedisPubSubReactiveCommands<ByteBuffer, ByteBuffer>, Mono<T>> function) {
return connection.getPubSubConnection().flatMap(pubSubConnection -> function.apply(pubSubConnection.reactive()))
.onErrorMap(connection.translateException());
}
}
相关信息
相关文章
spring-data-redis ClusterConnectionProvider 源码
spring-data-redis DefaultLettuceClientConfiguration 源码
spring-data-redis DefaultLettucePoolingClientConfiguration 源码
spring-data-redis LettuceByteBufferPubSubListenerWrapper 源码
spring-data-redis LettuceClientConfiguration 源码
spring-data-redis LettuceClusterConnection 源码
spring-data-redis LettuceClusterGeoCommands 源码
spring-data-redis LettuceClusterHashCommands 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦