/*
** Luxor - XML User Interface Language (XUL) Toolkit
** Copyright (c) 2001, 2002 by Gerald Bauer
**
** This program is free software.
**
** You may redistribute it and/or modify it under the terms of the GNU
** General Public License as published by the Free Software Foundation.
** Version 2 of the license should be included with this distribution in
** the file LICENSE, as well as License.html. If the license is not
** included with this distribution, you may find a copy at the FSF web
** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
**
** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
** REDISTRIBUTION OF THIS SOFTWARE.
**
*/

package luxor.http.loader;

import java.io.*;
import java.net.*;
import luxor.core.*;
import luxor.http.resource.*;
import luxor.spi.*;
import luxor.status.*;

public class ClassResourceLoader implements WebResourceLoader
{
   static Logger T = Logger.getLogger( ClassResourceLoader.class );

   private ClassLoader _loader;

   public ClassResourceLoader( Class clazz )
   {
      _loader = clazz.getClassLoader();
   }

   public WebResource getResource( String name )
   {
      try
      {
         T.debug( "name=" + name );

         // Strip leading slash

         name = name.substring( 1 );
         T.debug( "name=" + name );

         InputStream in = _loader.getResourceAsStream( name );
         if( in == null )
         {
            // couldn't locate jar

            T.debug( "resource not found" );
            return null;
         }

         T.debug( "bingo - resource located" );
         InputStreamResource res = new InputStreamResource( name, in );
         return res;
      }
      catch( IOException ioex )
      {
         Xul.error( "failed to retrieve resource '" + name + "': " + ioex.toString() );
         return null;
      }
   }

}