/*
* $Id: AnnotatedTransformerObjectProcessor.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.transformer;
import org.mule.api.MuleContext;
import org.mule.api.MuleException;
import org.mule.api.annotations.ContainsTransformerMethods;
import org.mule.api.annotations.Transformer;
import org.mule.api.context.MuleContextAware;
import org.mule.api.registry.PreInitProcessor;
import org.mule.util.annotation.AnnotationMetaData;
import org.mule.util.annotation.AnnotationUtils;
import java.lang.reflect.Method;
import java.util.List;
/**
* Will check all method level annotations to see if there are any {@link org.mule.api.annotations.Transformer} annotations present.
* For each method annotated with {@link org.mule.api.annotations.Transformer} a Mule transformer will be created. When the
* transformer is used, the method will get invoked
*
* @see org.mule.api.annotations.Transformer
*/
public class AnnotatedTransformerObjectProcessor implements PreInitProcessor, MuleContextAware
{
private MuleContext muleContext;
public AnnotatedTransformerObjectProcessor()
{
}
public AnnotatedTransformerObjectProcessor(MuleContext muleContext)
{
setMuleContext(muleContext);
}
public void setMuleContext(MuleContext context)
{
this.muleContext = context;
}
public Object process(Object object)
{
Class<? extends Object> clazz = object.getClass();
if (clazz.getAnnotation(ContainsTransformerMethods.class) == null)
{
return object;
}
List<AnnotationMetaData> annos = AnnotationUtils.getMethodAnnotations(clazz, Transformer.class);
if (annos.size() == 0)
{
return object;
}
for (AnnotationMetaData data : annos)
{
try
{
Transformer anno = (Transformer) data.getAnnotation();
AnnotatedTransformerProxy trans = new AnnotatedTransformerProxy(
anno.priorityWeighting(),
object, (Method) data.getMember(), anno.sourceTypes(),
null /*anno.sourceMimeType()*/, null /*anno.resultMimeType()*/);
muleContext.getRegistry().registerTransformer(trans);
}
catch (MuleException e)
{
throw new RuntimeException(e);
}
}
return object;
}
}