spring-kafka KafkaListenerErrorHandler 源码
spring-kafka KafkaListenerErrorHandler 代码
文件路径：/spring-kafka/src/main/java/org/springframework/kafka/listener/KafkaListenerErrorHandler.java
/*
* Copyright 2017-2019 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;
import org.apache.kafka.clients.consumer.Consumer;
import org.springframework.kafka.support.Acknowledgment;
import org.springframework.lang.Nullable;
import org.springframework.messaging.Message;
/**
* An error handler which is called when a {@code @KafkaListener} method
* throws an exception. This is invoked higher up the stack than the
* listener container's error handler. For methods annotated with
* {@code @SendTo}, the error handler can return a result.
*
* @author Venil Noronha
* @author Gary Russell
* @author Artem Bilan
*
* @since 1.3
*/
@FunctionalInterface
public interface KafkaListenerErrorHandler {
/**
* Handle the error.
* @param message the spring-messaging message.
* @param exception the exception the listener threw, wrapped in a
* {@link ListenerExecutionFailedException}.
* @return the return value is ignored unless the annotated method has a
* {@code @SendTo} annotation.
*/
Object handleError(Message<?> message, ListenerExecutionFailedException exception);
/**
* Handle the error.
* @param message the spring-messaging message.
* @param exception the exception the listener threw, wrapped in a
* {@link ListenerExecutionFailedException}.
* @param consumer the consumer.
* @return the return value is ignored unless the annotated method has a
* {@code @SendTo} annotation.
*/
default Object handleError(Message<?> message, ListenerExecutionFailedException exception,
Consumer<?, ?> consumer) {
return handleError(message, exception);
}
/**
* Handle the error.
* @param message the spring-messaging message.
* @param exception the exception the listener threw, wrapped in a
* {@link ListenerExecutionFailedException}.
* @param consumer the consumer.
* @param ack the {@link Acknowledgment}.
* @return the return value is ignored unless the annotated method has a
* {@code @SendTo} annotation.
*/
default Object handleError(Message<?> message, ListenerExecutionFailedException exception,
Consumer<?, ?> consumer, @Nullable Acknowledgment ack) {
return handleError(message, exception, consumer);
}
}
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