/*
** Rachel  - Resource Loading Toolkit for Web Start/JNLP
** 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 rachel.url;

import java.io.*;
import java.net.*;
import houston.*;

public class ClassUrlConnection extends URLConnection
{
   static Logger T = Logger.getLogger( ClassUrlConnection.class );

   private Class _clazz;

   public ClassUrlConnection( URL url )
   {
      super( url );
   }

   public String getContentType()
   {
      String path = this.url.getPath();
      T.debug( "path=" + path );

      String contentType = this.guessContentTypeFromName( path );
      T.debug( "contentType=" + contentType );

      return contentType;
   }

   public synchronized InputStream getInputStream() throws IOException
   {
      T.debug( "getInputStream()" );

      if( !connected )
         connect();

      String path = this.url.getPath();
      // strip leading slash if present
      if( path.startsWith( "/" ) )
         path = path.substring( 1 );

      T.debug( "path=" + path );
      InputStream in = _clazz.getClassLoader().getResourceAsStream( path );

      T.debug( "in=" + ( in != null ) );

      return in;
   }

   public synchronized void connect() throws IOException
   {
      T.debug( "connect()" );

      // get class from url e.g class://org.olympus.gr.Aphrodite/bio.html
      String className = this.url.getHost();

      T.debug( "className=" + className );

      try
      {
         _clazz = Class.forName( className );
         this.connected = true;
      }
      catch( ClassNotFoundException cex )
      {
         throw new IOException( "*** class not found: " + cex.toString() );
      }
   }
}