spring-kafka AbstractFilteringMessageListener 源码
spring-kafka AbstractFilteringMessageListener 代码
文件路径：/spring-kafka/src/main/java/org/springframework/kafka/listener/adapter/AbstractFilteringMessageListener.java
/*
* Copyright 2016-2021 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.kafka.listener.adapter;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.springframework.util.Assert;
/**
* An abstract message listener adapter that implements record filter logic
* via a {@link RecordFilterStrategy}.
*
* @param <K> the key type.
* @param <V> the value type.
* @param <T> the delegate type.
*
* @author Gary Russell
*
*/
public abstract class AbstractFilteringMessageListener<K, V, T>
extends AbstractDelegatingMessageListenerAdapter<T> {
private final RecordFilterStrategy<K, V> recordFilterStrategy;
protected AbstractFilteringMessageListener(T delegate, RecordFilterStrategy<K, V> recordFilterStrategy) {
super(delegate);
Assert.notNull(recordFilterStrategy, "'recordFilterStrategy' cannot be null");
this.recordFilterStrategy = recordFilterStrategy;
}
protected RecordFilterStrategy<K, V> getRecordFilterStrategy() {
return this.recordFilterStrategy;
}
protected boolean filter(ConsumerRecord<K, V> consumerRecord) {
return this.recordFilterStrategy.filter(consumerRecord);
}
}
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