001/* 002 * Copyright 2002-2013 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.messaging.Message; 020import org.springframework.messaging.MessageChannel; 021 022/** 023 * A {@link ChannelInterceptor} base class with empty method implementations 024 * as a convenience. 025 * 026 * @author Mark Fisher 027 * @author Rossen Stoyanchev 028 * @since 4.0 029 */ 030public abstract class ChannelInterceptorAdapter implements ChannelInterceptor { 031 032 @Override 033 public Message<?> preSend(Message<?> message, MessageChannel channel) { 034 return message; 035 } 036 037 @Override 038 public void postSend(Message<?> message, MessageChannel channel, boolean sent) { 039 } 040 041 @Override 042 public void afterSendCompletion(Message<?> message, MessageChannel channel, boolean sent, Exception ex) { 043 } 044 045 public boolean preReceive(MessageChannel channel) { 046 return true; 047 } 048 049 @Override 050 public Message<?> postReceive(Message<?> message, MessageChannel channel) { 051 return message; 052 } 053 054 @Override 055 public void afterReceiveCompletion(Message<?> message, MessageChannel channel, Exception ex) { 056 } 057 058}