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

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

   /**
    *  e.g. /venus
    */
   private String _context;

   /**
    *  note: don't include leading slash as it is automatically prependend
    *
    *@param  context  Description of the Parameter
    */
   public XulServletResourceLoader( String context )
   {
      _context = context;
   }

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

      String context = "/" + _context + "?";

      if( !name.startsWith( context ) )
         return null;

      // split name
      //  - cut of path

      String query = name.substring( context.length() );
      T.debug( "query=" + query );

      Map args = UrlUtils.parseQueryString( query );

      String actionKey = ( String ) args.get( "action" );

      XulManager xul = XulManager.getXulManager();
      XulServlet servlet = xul.lookupServlet( actionKey );
      if( servlet == null )
      {
         Xul.error( "unknown servlet '" + actionKey + "'" );
         return null;
      }

      // todo: should I remove action?
      args.remove( "action" );

      String html = servlet.getContent( args );

      return new StringResource( name, html );
   }

}