1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portal.kernel.servlet;
21  
22  import com.liferay.portal.kernel.log.Log;
23  import com.liferay.portal.kernel.log.LogFactoryUtil;
24  
25  import javax.servlet.ServletConfig;
26  import javax.servlet.http.HttpServlet;
27  
28  /**
29   * <a href="PortalDelegateServlet.java.html"><b><i>View Source</i></b></a>
30   *
31   * <p>
32   * See http://support.liferay.com/browse/LEP-2297.
33   * </p>
34   *
35   * @author Olaf Fricke
36   * @author Brian Wing Shun Chan
37   *
38   */
39  public class PortalDelegateServlet extends HttpServlet {
40  
41      public void init(ServletConfig servletConfig) {
42          String servletClass = servletConfig.getInitParameter("servlet-class");
43  
44          _subContext = servletConfig.getInitParameter("sub-context");
45  
46          if (_subContext == null) {
47              _subContext = getServletName();
48          }
49  
50          try {
51              Thread currentThread = Thread.currentThread();
52  
53              ClassLoader contextClassLoader =
54                  currentThread.getContextClassLoader();
55  
56              HttpServlet servlet = (HttpServlet)contextClassLoader.loadClass(
57                  servletClass).newInstance();
58  
59              servlet.init(servletConfig);
60  
61              PortalDelegatorServlet.addDelegate(_subContext, servlet);
62          }
63          catch (Exception e) {
64              _log.error(e, e);
65          }
66      }
67  
68      public void destroy() {
69          PortalDelegatorServlet.removeDelegate(_subContext);
70      }
71  
72      private static Log _log =
73          LogFactoryUtil.getLog(PortalDelegateServlet.class);
74  
75      private String _subContext;
76  
77  }