spring-data-redis LettuceMessageListener 源码
spring-data-redis LettuceMessageListener 代码
文件路径：/src/main/java/org/springframework/data/redis/connection/lettuce/LettuceMessageListener.java
/*
* Copyright 2011-2022 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.RedisPubSubListener;
import org.springframework.data.redis.connection.DefaultMessage;
import org.springframework.data.redis.connection.MessageListener;
import org.springframework.data.redis.connection.SubscriptionListener;
import org.springframework.util.Assert;
/**
* MessageListener wrapper around Lettuce {@link RedisPubSubListener}.
*
* @author Costin Leau
* @author Mark Paluch
*/
class LettuceMessageListener implements RedisPubSubListener<byte[], byte[]> {
private final MessageListener listener;
private final SubscriptionListener subscriptionListener;
LettuceMessageListener(MessageListener listener, SubscriptionListener subscriptionListener) {
Assert.notNull(listener, "MessageListener must not be null");
Assert.notNull(subscriptionListener, "SubscriptionListener must not be null");
this.listener = listener;
this.subscriptionListener = subscriptionListener;
}
public void message(byte[] channel, byte[] message) {
listener.onMessage(new DefaultMessage(channel, message), null);
}
public void message(byte[] pattern, byte[] channel, byte[] message) {
listener.onMessage(new DefaultMessage(channel, message), pattern);
}
public void subscribed(byte[] channel, long count) {
subscriptionListener.onChannelSubscribed(channel, count);
}
public void psubscribed(byte[] pattern, long count) {
subscriptionListener.onPatternSubscribed(pattern, count);
}
public void unsubscribed(byte[] channel, long count) {
subscriptionListener.onChannelUnsubscribed(channel, count);
}
public void punsubscribed(byte[] pattern, long count) {
subscriptionListener.onPatternUnsubscribed(pattern, count);
}
}
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