/*
* $Id: TransformerConverter.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.config.converters;
import org.mule.api.MuleContext;
import org.mule.api.expression.PropertyConverter;
import org.mule.api.transformer.Transformer;
import java.util.LinkedList;
import java.util.List;
import java.util.StringTokenizer;
/**
* Converts a String list of Transformer names into a List of {@link org.mule.api.transformer.Transformer} objects.
*/
public class TransformerConverter implements PropertyConverter
{
public static final String DELIM = ",";
public Object convert(String property, MuleContext context)
{
if (null != property)
{
List<Transformer> transformers = new LinkedList<Transformer>();
StringTokenizer st = new StringTokenizer(property, DELIM);
while (st.hasMoreTokens())
{
String key = st.nextToken().trim();
Transformer transformer = context.getRegistry().lookupTransformer(key);
if (transformer == null)
{
throw new IllegalArgumentException(key);
}
transformers.add(transformer);
}
return transformers;
}
else
{
return null;
}
}
public Class getType()
{
return TransformerList.class;
}
}