package org.litesoft.servlets;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public abstract class ForwardingServlet extends HttpServlet
{
    @Override
    protected final void doPost( HttpServletRequest pRequest, HttpServletResponse pResponse )
            throws ServletException, IOException
    {
        HttpSession zSession = pRequest.getSession( true );

        String newURL = pResponse.encodeRedirectURL( process( pRequest, pResponse, zSession ) );
        pResponse.setStatus( HttpServletResponse.SC_SEE_OTHER );
        pResponse.setHeader( "Location", newURL );
    }

    /**
     * @return The URL to forward to
     */
    abstract protected String process( HttpServletRequest pRequest, HttpServletResponse pResponse, HttpSession pSession );
}