/*
* $Id: AutoTransformer.java 20321 2010-11-24 15:21:24Z dfeist $
* --------------------------------------------------------------------------------------
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
*
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.transformer.simple;
import org.mule.transformer.AbstractMessageTransformer;
import org.mule.api.MuleMessage;
import org.mule.api.lifecycle.InitialisationException;
import org.mule.api.transformer.TransformerException;
import org.mule.config.i18n.CoreMessages;
import org.mule.transformer.types.DataTypeFactory;
/**
* A transformer that uses the transform discovery mechanism to convert the message payload. This transformer
* works much better when transforming custom object types rather that java types since there is less chance for
* ambiguity.
* If an exact match cannot be made an execption will be thrown.
*/
public class AutoTransformer extends AbstractMessageTransformer
{
/**
* Template method where deriving classes can do any initialisation after the
* properties have been set on this transformer
*
* @throws org.mule.api.lifecycle.InitialisationException
*
*/
@Override
public void initialise() throws InitialisationException
{
super.initialise();
if(getReturnClass().equals(Object.class))
{
throw new InitialisationException(CoreMessages.transformerInvalidReturnType(Object.class, getName()), this);
}
}
@Override
public Object transformMessage(MuleMessage message, String outputEncoding) throws TransformerException
{
return message.getPayload(DataTypeFactory.create(getReturnClass()));
}
}