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1   // ========================================================================
2   // Copyright 2004-2010 Mort Bay Consulting Pty. Ltd.
3   // ------------------------------------------------------------------------
4   // All rights reserved. This program and the accompanying materials
5   // are made available under the terms of the Eclipse Public License v1.0
6   // and Apache License v2.0 which accompanies this distribution.
7   // The Eclipse Public License is available at
8   // http://www.eclipse.org/legal/epl-v10.html
9   // The Apache License v2.0 is available at
10  // http://www.opensource.org/licenses/apache2.0.php
11  // You may elect to redistribute this code under either of these licenses.
12  // ========================================================================
13  
14  package org.eclipse.jetty.server.session;
15  
16  import java.io.IOException;
17  import java.util.Random;
18  
19  import javax.servlet.ServletException;
20  import javax.servlet.http.HttpServlet;
21  import javax.servlet.http.HttpServletRequest;
22  import javax.servlet.http.HttpServletResponse;
23  import javax.servlet.http.HttpSession;
24  
25  import org.eclipse.jetty.client.ContentExchange;
26  import org.eclipse.jetty.client.HttpClient;
27  import org.eclipse.jetty.http.HttpMethods;
28  import org.junit.Test;
29  import static org.junit.Assert.assertEquals;
30  import static org.junit.Assert.assertTrue;
31  
32  
33  /**
34   * AbstractReentrantRequestSessionTest
35   */
36  public abstract class AbstractReentrantRequestSessionTest
37  {
38      public abstract AbstractTestServer createServer(int port);
39  
40      @Test
41      public void testReentrantRequestSession() throws Exception
42      {
43          Random random = new Random(System.nanoTime());
44  
45          String contextPath = "";
46          String servletMapping = "/server";
47          int port = random.nextInt(50000) + 10000;
48          AbstractTestServer server = createServer(port);
49          server.addContext(contextPath).addServlet(TestServlet.class, servletMapping);
50          server.start();
51          try
52          {
53              HttpClient client = new HttpClient();
54              client.setConnectorType(HttpClient.CONNECTOR_SOCKET);
55              client.start();
56              try
57              {
58                  ContentExchange exchange = new ContentExchange(true);
59                  exchange.setMethod(HttpMethods.GET);
60                  exchange.setURL("http://localhost:" + port + contextPath + servletMapping + "?action=reenter&port=" + port + "&path=" + contextPath + servletMapping);
61                  client.send(exchange);
62                  exchange.waitForDone();
63                  assertEquals(HttpServletResponse.SC_OK,exchange.getResponseStatus());
64              }
65              finally
66              {
67                  client.stop();
68              }
69          }
70          finally
71          {
72              server.stop();
73          }
74      }
75  
76      public static class TestServlet extends HttpServlet
77      {
78          @Override
79          protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
80          {
81              doPost(request, response);
82          }
83  
84          @Override
85          protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
86          {
87              HttpSession session = request.getSession(false);
88              if (session == null) session = request.getSession(true);
89  
90              String action = request.getParameter("action");
91              if ("reenter".equals(action))
92              {
93                  int port = Integer.parseInt(request.getParameter("port"));
94                  String path = request.getParameter("path");
95  
96                  // We want to make another request with a different session
97                  // while this request is still pending, to see if the locking is
98                  // fine grained (per session at least).
99                  try
100                 {
101                     HttpClient client = new HttpClient();
102                     client.setConnectorType(HttpClient.CONNECTOR_SOCKET);
103                     client.start();
104                     try
105                     {
106                         ContentExchange exchange = new ContentExchange(true);
107                         exchange.setMethod(HttpMethods.GET);
108                         exchange.setURL("http://localhost:" + port + path + "?action=none");
109                         client.send(exchange);
110                         exchange.waitForDone();
111                         assertEquals(HttpServletResponse.SC_OK,exchange.getResponseStatus());
112                     }
113                     finally
114                     {
115                         client.stop();
116                     }
117                 }
118                 catch (Exception x)
119                 {
120                     throw new ServletException(x);
121                 }
122             }
123             else
124             {
125                 // Reentrancy was successful, just return
126             }
127         }
128     }
129 }