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/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.mx.metadata.xb;

import org.jboss.mx.interceptor.Interceptor;
import org.jboss.util.NestedRuntimeException;
import org.jboss.xb.binding.GenericValueContainer;

import javax.xml.namespace.QName;

/**
 A container for the interceptor elements.
 
 @author [email protected]
 @version $Revision: 42150 $
 */
public class InterceptorHolder
   implements GenericValueContainer
{
   private Class clazz;

   public void addChild(QName name, Object value)
   {
      String lname = name.getLocalPart();
      if( lname.equals("code") )
      {
         ClassLoader loader = Thread.currentThread().getContextClassLoader();
         String cname = (String) value;
         try
         {
            clazz = loader.loadClass(cname);
         }
         catch(Throwable e)
         {
            throw new NestedRuntimeException("Unable to load code: "+cname, e);
         }
      }
   }

   public Object instantiate()
   {
      Interceptor i;
      // todo: Check for a ctor()
      try
      {
         i = (Interceptor) clazz.newInstance();
      }
      catch (Throwable e)
      {
         throw new NestedRuntimeException("Failed to instantiate interceptor", e);
      }
      return i;
   }

   public Class getTargetClass()
   {
      return Interceptor.class;
   }
}