/*
 * $Id: ErrorMessageToException.java 19250 2010-08-30 16:53:14Z dirk.olmes $
 * --------------------------------------------------------------------------------------
 * 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.example.errorhandler;

import org.mule.api.transformer.TransformerException;
import org.mule.transformer.AbstractTransformer;
import org.mule.transformer.types.DataTypeFactory;

/**
 * The <code>ErrorMessageToException</code> transformer extracts and returns
 * the exception encapsulated by the ErrorMessage message payload.
 */
public class ErrorMessageToException extends AbstractTransformer
{

    public ErrorMessageToException()
    {
        registerSourceType(DataTypeFactory.create(ErrorMessage.class));
    }

    @Override
    public Object doTransform(Object src, String encoding) throws TransformerException
    {
        try
        {
            return ((ErrorMessage)src).getException().toException();
        }
        catch (InstantiationException e)
        {
            throw new TransformerException(this, e);
        }
    }

}
