/* $Id: SessionExample.java,v 1.6 2004/02/22 22:57:59 billbarker Exp $
 *
 */
/*   
 *  Copyright 1999-2004 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.Enumeration;
import java.util.ResourceBundle;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import util.HTMLFilter;

/**
 * Example servlet showing request headers
 *
 * @author James Duncan Davidson 
 */

public class SessionExample extends HttpServlet {

    ResourceBundle rb = ResourceBundle.getBundle("LocalStrings");
    
    public void doGet(HttpServletRequest request,
                      HttpServletResponse response)
        throws IOException, ServletException
    {
        response.setContentType("text/html");

        PrintWriter out = response.getWriter();
        out.println("");
        out.println("");
        out.println("");

        String title = rb.getString("sessions.title");
        out.println("");
        out.println("");
        out.println("");

        // img stuff not req'd for source code html showing
	// relative links everywhere!

        // XXX
        // making these absolute till we work out the
        // addition of a PathInfo issue 
	
        out.println("");
        out.println("");
        out.println("");
        out.println("");

        out.println("
" + title + "
");

        HttpSession session = request.getSession();
        out.println(rb.getString("sessions.id") + " " + session.getId());
        out.println("
");
        out.println(rb.getString("sessions.isnew") + " " + session.isNew() + "
");
        out.println(rb.getString("sessions.created") + " ");
        out.println(new Date(session.getCreationTime()) + "
");
        out.println(rb.getString("sessions.lastaccessed") + " ");
        out.println(new Date(session.getLastAccessedTime()));
        out.println("
");
        out.println(rb.getString("sessions.requestedid") + " " + request.getRequestedSessionId() + "
");
        out.println(rb.getString("sessions.requestedidvalid") + " " + request.isRequestedSessionIdValid() + "
");
        out.println(rb.getString("sessions.fromcookie") + " " + request.isRequestedSessionIdFromCookie() + "
");
        out.println(rb.getString("sessions.fromurl") + " " + request.isRequestedSessionIdFromURL() + "
");

        String invalidate = request.getParameter("INVALIDATE");
        if(invalidate != null){
            session.invalidate();
        }else{
            String dataName = request.getParameter("dataname");
            String dataValue = request.getParameter("datavalue");
            if (dataName != null && dataValue != null) {
                session.setAttribute(dataName, dataValue);
            }

            out.println("
");
            out.println(rb.getString("sessions.data") + "
");
            Enumeration names = session.getAttributeNames();
            while (names.hasMoreElements()) {
                String name = (String) names.nextElement(); 
                String value = session.getAttribute(name).toString();
                out.println(HTMLFilter.filter(name) + " = " 
                            + HTMLFilter.filter(value) + "
");
            }
        }

        out.println("
");
        out.print("
");
        out.println(rb.getString("sessions.dataname"));
        out.println("");
        out.println("
");
        out.println(rb.getString("sessions.datavalue"));
        out.println("");
        out.println("
");
        out.println("");
        out.println("
");

        out.println("
GET based form:
");
        out.print("
");
        out.println(rb.getString("sessions.dataname"));
        out.println("");
        out.println("
");
        out.println(rb.getString("sessions.datavalue"));
        out.println("");
        out.println("
");
        out.println("");
        out.println("
");

        out.println("
");
        out.println("
Invalidate session:
");
        out.print("
");
        out.println("");
        out.println("");
        out.println("
");

        out.print("
URL encoded ");
	
        out.println("");
        out.println("");
        
        out.println("");
        out.println("");
    }

    public void doPost(HttpServletRequest request,
                      HttpServletResponse response)
        throws IOException, ServletException
    {
        doGet(request, response);
    }

}