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1   /***
2    * @(#)ServiceLoaderServlet.java
3    * 
4    * JFoxSOAF, Service-Oriented Application Framework
5    * 
6    * Copyright(c) JFoxSOAF Team
7    * 
8    * Licensed under the GNU LGPL, Version 2.1 (the "License"); 
9    * you may not use this file except in compliance with the License. 
10   * You may obtain a copy of the License at  
11   * 
12   * http://www.gnu.org/copyleft/lesser.html
13   * 
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS, 
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
17   * See the License for the specific language governing permissions and 
18   * limitations under the License. 
19   * 
20   * For more information, please visit:
21   * http://www.jfox.cn/confluence/display/JFoxSOAF/Home
22   * http://www.huihoo.org/jfox/jfoxsoaf
23   */
24  
25  package org.huihoo.jfox.soaf.util.web;
26  
27  import java.io.IOException;
28  
29  import javax.servlet.ServletContext;
30  import javax.servlet.ServletException;
31  import javax.servlet.http.HttpServlet;
32  import javax.servlet.http.HttpServletRequest;
33  import javax.servlet.http.HttpServletResponse;
34  
35  import org.huihoo.jfox.soaf.container.ServiceLoader;
36  
37  /***
38   * <p>
39   * Service loader initialization servlet.
40   * </p>
41   * 
42   * @author <a href="mailto:founder_chen@yahoo.com.cn">Peter Cheng </a>
43   * @version $Revision: 1.2 $ $Date: 2005/05/22 06:51:12 $
44   * @version Revision: 1.0
45   */
46  
47  public class ServiceLoaderServlet extends HttpServlet {
48  
49      public static final String WEB_CONFIG = "config";
50  
51      private ServletContext servletContext;
52  
53      private ServiceLoader serviceLoader = ServiceLoader.getInstance();
54  
55      /***
56       * Initialize the service context.
57       */
58      public void init() throws ServletException {
59          servletContext = getServletContext();        
60          serviceLoader.initService(servletContext
61                  .getResourceAsStream(servletContext
62                          .getInitParameter(WEB_CONFIG)));
63      }
64  
65      /***
66       * Http request should never be send to this servlet.
67       */
68      public void service(HttpServletRequest request, HttpServletResponse response)
69              throws IOException {
70      }
71  
72      /***
73       * Destory services.
74       */
75      public void destroy() {
76      }
77  
78  }