/*

 Wotonomy: OpenStep design patterns for pure Java applications.

 Copyright (C) 2000 Blacksmith, Inc.

 This library 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 library 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 library; if not, see http://www.gnu.org

 */

 package net.wotonomy.web;

 import java.util.Enumeration;

 import net.wotonomy.foundation.NSData;

 import net.wotonomy.foundation.NSMutableDictionary;

 /**

 * An implementation of WORequestHandler that  

 * retrieves resources from the deployed application.

 *

 * @author michael@mpowers.net

 * @author $Author: cgruber $

 * @version $Revision: 905 $

 */

 public class WOResourceRequestHandler

         extends WORequestHandler

 {

     private NSMutableDictionary resourceCache;

     private WOResourceManager resourceManager;

     public WOResourceRequestHandler()

     {

         //TODO: should probably have some kind of limit on the cache

         resourceCache = new NSMutableDictionary();

         resourceManager = WOApplication.application().resourceManager();

     }

     public WOResponse handleRequest( WORequest aRequest )

     {

         WOResponse response = new WOResponse();

         StringBuffer buf = new StringBuffer();

         //TODO: this is just to get things working...

         String framework = null;

         Enumeration e = aRequest.requestHandlerPathArray().objectEnumerator();

         if ( e.hasMoreElements() )

         {

             framework = e.nextElement().toString();

             if ( framework.equals( "application" ) )

             {

                 buf.append('/').append( framework );

                 framework = null;

             }

         }

         if ( e.hasMoreElements() )

         {

             buf.append( e.nextElement() );

         }

         while ( e.hasMoreElements() )

         {

             buf.append('/').append( e.nextElement() );

         }

         String resource;

         if ( buf.length() > 0 )

         {

             resource = buf.toString();

             byte[] data = resourceManager.bytesForResourceNamed(

                 resource, framework, aRequest.browserLanguages() );

             if ( data != null )

             {

                 response.setHeader(

                     resourceManager.contentTypeForResourceNamed( resource ),

                     "Content-Type" );

                 response.setContent( new NSData( data ) );

                 return response;

             }

         }

         response.setStatus( 404 ); // not found

         return response;

     }

 }

 /*

  * $Log$

  * Revision 1.2  2006/02/19 01:44:02  cgruber

  * Add xmlrpc files

  * Remove jclark and replace with dom4j and javax.xml.sax stuff

  * Re-work dependencies and imports so it all compiles.

  *

  * Revision 1.1  2006/02/16 13:22:22  cgruber

  * Check in all sources in eclipse-friendly maven-enabled packages.

  *

  * Revision 1.6  2003/08/07 00:15:15  chochos

  * general cleanup (mostly removing unused imports)

  *

  * Revision 1.5  2003/01/27 15:08:00  mpowers

  * Implemented WOResourceManager, using java resources for now.

  *

  * Revision 1.4  2003/01/22 23:01:36  mpowers

  * Better handling for request handler path.

  * Better support for resources with absolute path.

  *

  * Revision 1.3  2003/01/20 16:18:22  mpowers

  * Fixed class loading issues with resource retrieval.

  *

  * Revision 1.2  2003/01/17 20:58:20  mpowers

  * Fixed up WOHyperlink.

  *

  *

  */