org.springframework.integration.support.converter.PassThruMessageConverter Maven / Gradle / Ivy
/*
* Copyright 2015-2019 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.integration.support.converter;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.converter.MessageConverter;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.util.Assert;
/**
* The simple {@link MessageConverter} implementation which contract is to return
* {@link Message} as is for both {@code from/to} operations.
*
* It is useful in cases of some protocol implementations (e.g. STOMP),
* which is based on the "Spring Messaging Foundation" and the further logic
* operates only with {@link Message}s, e.g. Spring Integration Adapters.
*
* @author Artem Bilan
* @since 4.2
*/
public class PassThruMessageConverter implements MessageConverter {
@Override
public Object fromMessage(Message message, Class targetClass) {
return message;
}
@Override
public Message toMessage(Object payload, MessageHeaders headers) {
Assert.isInstanceOf(byte[].class, payload, "'payload' must be of 'byte[]' type.");
return MessageBuilder.createMessage(payload, headers);
}
}