/*
* Copyright 2002-2014 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
*
* http://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 java.util.Map;
import org.springframework.messaging.Message;
/**
* An extension of {@link AbstractMessageReceivingTemplate} that adds support for
* request-reply style operations as defined by {@link MessageRequestReplyOperations}.
*
* @author Mark Fisher
* @author Rossen Stoyanchev
* @author Stephane Nicoll
* @since 4.0
*/
public abstract class AbstractMessagingTemplate<D> extends AbstractMessageReceivingTemplate<D>
implements MessageRequestReplyOperations<D> {
@Override
public Message<?> sendAndReceive(Message<?> requestMessage) {
return sendAndReceive(getRequiredDefaultDestination(), requestMessage);
}
@Override
public Message<?> sendAndReceive(D destination, Message<?> requestMessage) {
return doSendAndReceive(destination, requestMessage);
}
protected abstract Message<?> doSendAndReceive(D destination, Message<?> requestMessage);
@Override
public <T> T convertSendAndReceive(Object request, Class<T> targetClass) {
return convertSendAndReceive(getRequiredDefaultDestination(), request, targetClass);
}
@Override
public <T> T convertSendAndReceive(D destination, Object request, Class<T> targetClass) {
return convertSendAndReceive(destination, request, null, targetClass);
}
@Override
public <T> T convertSendAndReceive(D destination, Object request, Map<String, Object> headers, Class<T> targetClass) {
return convertSendAndReceive(destination, request, headers, targetClass, null);
}
@Override
public <T> T convertSendAndReceive(Object request, Class<T> targetClass, MessagePostProcessor postProcessor) {
return convertSendAndReceive(getRequiredDefaultDestination(), request, targetClass, postProcessor);
}
@Override
public <T> T convertSendAndReceive(D destination, Object request, Class<T> targetClass, MessagePostProcessor postProcessor) {
return convertSendAndReceive(destination, request, null, targetClass, postProcessor);
}
@SuppressWarnings("unchecked")
@Override
public <T> T convertSendAndReceive(D destination, Object request, Map<String, Object> headers,
Class<T> targetClass, MessagePostProcessor postProcessor) {
Message<?> requestMessage = doConvert(request, headers, postProcessor);
Message<?> replyMessage = sendAndReceive(destination, requestMessage);
return (replyMessage != null ? (T) getMessageConverter().fromMessage(replyMessage, targetClass) : null);
}
}