spring-kafka EndpointCustomizer 源码
spring-kafka EndpointCustomizer 代码
文件路径:/spring-kafka/src/main/java/org/springframework/kafka/retrytopic/EndpointCustomizer.java
/*
* Copyright 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.retrytopic;
import java.util.Collection;
import org.springframework.kafka.config.MethodKafkaListenerEndpoint;
/**
* Customizes main, retry and DLT endpoints in the Retry Topic functionality
* and returns the resulting topic names.
*
* @author Tomaz Fernandes
* @since 2.7.2
*
* @see EndpointCustomizerFactory
*
*/
@FunctionalInterface
public interface EndpointCustomizer {
/**
* Customize the endpoint and return the topic names generated for this endpoint.
* @param listenerEndpoint The main, retry or DLT endpoint to be customized.
* @return A collection containing the topic names generated for this endpoint.
*/
Collection<TopicNamesHolder> customizeEndpointAndCollectTopics(MethodKafkaListenerEndpoint<?, ?> listenerEndpoint);
class TopicNamesHolder {
private final String mainTopic;
private final String customizedTopic;
TopicNamesHolder(String mainTopic, String customizedTopic) {
this.mainTopic = mainTopic;
this.customizedTopic = customizedTopic;
}
String getMainTopic() {
return this.mainTopic;
}
String getCustomizedTopic() {
return this.customizedTopic;
}
}
}
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