001/* 002 * Copyright 2002-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.messaging.support; 018 019import org.springframework.lang.Nullable; 020import org.springframework.messaging.Message; 021import org.springframework.messaging.MessageChannel; 022 023/** 024 * A {@link ChannelInterceptor} base class with empty method implementations 025 * as a convenience. 026 * 027 * @author Mark Fisher 028 * @author Rossen Stoyanchev 029 * @since 4.0 030 * @deprecated as of 5.0.7 {@link ChannelInterceptor} has default methods (made 031 * possible by a Java 8 baseline) and can be implemented directly without the 032 * need for this no-op adapter 033 */ 034@Deprecated 035public abstract class ChannelInterceptorAdapter implements ChannelInterceptor { 036 037 @Override 038 public Message<?> preSend(Message<?> message, MessageChannel channel) { 039 return message; 040 } 041 042 @Override 043 public void postSend(Message<?> message, MessageChannel channel, boolean sent) { 044 } 045 046 @Override 047 public void afterSendCompletion(Message<?> message, MessageChannel channel, boolean sent, @Nullable Exception ex) { 048 } 049 050 @Override 051 public boolean preReceive(MessageChannel channel) { 052 return true; 053 } 054 055 @Override 056 public Message<?> postReceive(Message<?> message, MessageChannel channel) { 057 return message; 058 } 059 060 @Override 061 public void afterReceiveCompletion(@Nullable Message<?> message, MessageChannel channel, @Nullable Exception ex) { 062 } 063 064}