1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.kernel.servlet;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  
28  import javax.servlet.ServletConfig;
29  import javax.servlet.http.HttpServlet;
30  
31  /**
32   * <a href="PortalDelegateServlet.java.html"><b><i>View Source</i></b></a>
33   *
34   * <p>
35   * See http://support.liferay.com/browse/LEP-2297.
36   * </p>
37   *
38   * @author Olaf Fricke
39   * @author Brian Wing Shun Chan
40   *
41   */
42  public class PortalDelegateServlet extends HttpServlet {
43  
44      public void init(ServletConfig servletConfig) {
45          String servletClass = servletConfig.getInitParameter("servlet-class");
46  
47          _subContext = servletConfig.getInitParameter("sub-context");
48  
49          if (_subContext == null) {
50              _subContext = getServletName();
51          }
52  
53          try {
54              Thread currentThread = Thread.currentThread();
55  
56              ClassLoader contextClassLoader =
57                  currentThread.getContextClassLoader();
58  
59              HttpServlet servlet = (HttpServlet)contextClassLoader.loadClass(
60                  servletClass).newInstance();
61  
62              servlet.init(servletConfig);
63  
64              PortalDelegatorServlet.addDelegate(_subContext, servlet);
65          }
66          catch (Exception e) {
67              _log.error(e, e);
68          }
69      }
70  
71      public void destroy() {
72          PortalDelegatorServlet.removeDelegate(_subContext);
73      }
74  
75      private static Log _log =
76          LogFactoryUtil.getLog(PortalDelegateServlet.class);
77  
78      private String _subContext;
79  
80  }