//----------------------------BEGIN LICENSE----------------------------
/*
* Willow : the Open Source WorkFlow Project
* Distributable under GNU LGPL license by gun.org
*
* Copyright (C) 2004-2010 huihoo.org
* Copyright (C) 2004-2010 ZosaTapo <dertyang@hotmail.com>
*
* ====================================================================
* Project Homepage : http://www.huihoo.org/willow
* Source Forge : http://sourceforge.net/projects/huihoo
* Mailing list : willow@lists.sourceforge.net
*/
//----------------------------END LICENSE-----------------------------
package org.huihoo.willow.startup;
import java.lang.reflect.Method;
import org.apache.commons.digester.Digester;
import org.apache.commons.digester.Rule;
import org.huihoo.willow.Container;
import org.xml.sax.Attributes;
/**
* @author reic
*
* To change the template for this generated type comment go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
public class CopyParentClassLoaderRule extends Rule
{
// ----------------------------------------------------------- Constructors
/**
* Construct a new instance of this Rule.
*
* @param digester Digester we are associated with
*/
public CopyParentClassLoaderRule(Digester digester)
{
super(digester);
}
// --------------------------------------------------------- Public Methods
/**
* Handle the beginning of an XML element.
*
* @param attributes The attributes of this element
*
* @exception Exception if a processing error occurs
*/
public void begin(Attributes attributes) throws Exception
{
if (digester.getDebug() >= 1)
digester.log("Copying parent class loader");
Container child = (Container) digester.peek(0);
Object parent = digester.peek(1);
Method method = parent.getClass().getMethod("getParentClassLoader", new Class[0]);
ClassLoader classLoader = (ClassLoader) method.invoke(parent, new Object[0]);
child.setParentClassLoader(classLoader);
}
}