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}