spring MessagePostProcessor 源码
spring MessagePostProcessor 代码
文件路径：/spring-messaging/src/main/java/org/springframework/messaging/core/MessagePostProcessor.java
/*
* Copyright 2002-2013 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.messaging.core;
import org.springframework.messaging.Message;
/**
* A contract for processing a {@link Message} after it has been created, either
* returning a modified (effectively new) message or returning the same.
*
* @author Mark Fisher
* @author Rossen Stoyanchev
* @since 4.0
* @see MessageSendingOperations
* @see MessageRequestReplyOperations
*/
@FunctionalInterface
public interface MessagePostProcessor {
/**
* Process the given message.
* @param message the message to process
* @return a post-processed variant of the message, or simply the incoming
* message; never {@code null}
*/
Message<?> postProcessMessage(Message<?> message);
}
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