//
   //  ========================================================================
   //  Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
   //  ------------------------------------------------------------------------
   //  All rights reserved. This program and the accompanying materials
   //  are made available under the terms of the Eclipse Public License v1.0
   //  and Apache License v2.0 which accompanies this distribution.
   //
   //      The Eclipse Public License is available at
  //      http://www.eclipse.org/legal/epl-v10.html
  //
  //      The Apache License v2.0 is available at
  //      http://www.opensource.org/licenses/apache2.0.php
  //
  //  You may elect to redistribute this code under either of these licenses.
  //  ========================================================================
  //
  
  package org.eclipse.jetty.server.session;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import java.io.IOException;
  
  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 org.eclipse.jetty.client.HttpClient;
  import org.eclipse.jetty.client.api.ContentResponse;
  import org.eclipse.jetty.client.api.Request;
  import org.eclipse.jetty.util.thread.QueuedThreadPool;
  import org.junit.Test;
  
  /**
   * AbstractInvalidationSessionTest
   * Goal of the test is to be sure that invalidating a session on one node
   * result in the session being unavailable in the other node also.
   */
  public abstract class AbstractInvalidationSessionTest
  {
      public abstract AbstractTestServer createServer(int port);
      public abstract void pause();
  
      @Test
      public void testInvalidation() throws Exception
      {
          String contextPath = "";
          String servletMapping = "/server";
          AbstractTestServer server1 = createServer(0);
          server1.addContext(contextPath).addServlet(TestServlet.class, servletMapping);
  
  
          try
          {
              server1.start();
              int port1 = server1.getPort();
              AbstractTestServer server2 = createServer(0);
              server2.addContext(contextPath).addServlet(TestServlet.class, servletMapping);
  
              try
              {
                  server2.start();
                  int port2=server2.getPort();
                  HttpClient client = new HttpClient();
                  QueuedThreadPool executor = new QueuedThreadPool();
                  client.setExecutor(executor);
                  client.start();
                  try
                  {
                      String[] urls = new String[2];
                      urls[0] = "http://localhost:" + port1 + contextPath + servletMapping;
                      urls[1] = "http://localhost:" + port2 + contextPath + servletMapping;
  
                      // Create the session on node1
                      ContentResponse response1 = client.GET(urls[0] + "?action=init");
  
                      assertEquals(HttpServletResponse.SC_OK,response1.getStatus());
                      String sessionCookie = response1.getHeaders().getStringField("Set-Cookie");
                      assertTrue(sessionCookie != null);
                      // Mangle the cookie, replacing Path with $Path, etc.
                      sessionCookie = sessionCookie.replaceFirst("(\\W)(P|p)ath=", "$1\\$Path=");
  
                      // Be sure the session is also present in node2
  
                      Request request2 = client.newRequest(urls[1] + "?action=increment");
                      request2.header("Cookie", sessionCookie);
                      ContentResponse response2 = request2.send();
                      assertEquals(HttpServletResponse.SC_OK,response2.getStatus());
  
                      // Invalidate on node1
                      Request request1 = client.newRequest(urls[0] + "?action=invalidate");
                      request1.header("Cookie", sessionCookie);
                      response1 = request1.send();
                      assertEquals(HttpServletResponse.SC_OK, response1.getStatus());
  
                     pause();
 
                     // Be sure on node2 we don't see the session anymore
                     request2 = client.newRequest(urls[1] + "?action=test");
                     request2.header("Cookie", sessionCookie);
                     response2 = request2.send();
                     assertEquals(HttpServletResponse.SC_OK,response2.getStatus());
                 }
                 finally
                 {
                     client.stop();
                 }
             }
             finally
             {
                 server2.stop();
             }
         }
         finally
         {
             server1.stop();
         }
     }
 
     public static class TestServlet extends HttpServlet
     {
         @Override
         protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
         {
             String action = request.getParameter("action");
             if ("init".equals(action))
             {
                 HttpSession session = request.getSession(true);
                 session.setAttribute("value", 0);
             }
             else if ("increment".equals(action))
             {
                 HttpSession session = request.getSession(false);
                 int value = (Integer)session.getAttribute("value");
                 session.setAttribute("value", value + 1);
             }
             else if ("invalidate".equals(action))
             {
                 HttpSession session = request.getSession(false);
                 session.invalidate();
             }
             else if ("test".equals(action))
             {
                 HttpSession session = request.getSession(false);
                 assertEquals(null,session);
             }
         }
     }
 }