/*
* Copyright 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.xd.dirt.integration.bus.converter;
import java.io.ByteArrayInputStream;
import java.io.ObjectInputStream;
import java.io.Serializable;
import org.springframework.messaging.Message;
/**
* A {@link org.springframework.messaging.converter.MessageConverter}
* to deserialize {@link java.io.Serializable} Java objects.
*
* @author David Turanski
*/
public class SerializedToJavaMessageConverter extends AbstractFromMessageConverter {
public SerializedToJavaMessageConverter() {
super(MessageConverterUtils.X_JAVA_SERIALIZED_OBJECT, MessageConverterUtils.X_JAVA_OBJECT);
}
@Override
protected Class<?>[] supportedTargetTypes() {
return new Class<?>[] { Serializable.class };
}
@Override
protected Class<?>[] supportedPayloadTypes() {
return new Class<?>[] { byte[].class };
}
@Override
public Object convertFromInternal(Message<?> message, Class<?> targetClass) {
ByteArrayInputStream bis = new ByteArrayInputStream((byte[]) (message.getPayload()));
Object result = null;
try {
result = new ObjectInputStream(bis).readObject();
}
catch (Exception e) {
logger.error(e.getMessage(), e);
return null;
}
return buildConvertedMessage(result, message.getHeaders(),
MessageConverterUtils.javaObjectMimeType(targetClass));
}
}