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Java > Open Source Codes > net > sf > jguard > jee > util > WebappUtil


1 /*
2 jGuard is a security framework based on top of jaas (java authentication and authorization security).
3 it is written for web applications, to resolve simply, access control problems.
4 version $Name: $
5 http://sourceforge.net/projects/jguard/
6
7 Copyright (C) 2004 Charles GAY
8
9 This library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Lesser General Public
11 License as published by the Free Software Foundation; either
12 version 2.1 of the License, or (at your option) any later version.
13
14 This library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public
20 License along with this library; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22
23
24 jGuard project home page:
25 http://sourceforge.net/projects/jguard/
26
27 */
28 package net.sf.jguard.jee.util;
29
30 import java.net.MalformedURLException JavaDoc;
31
32 import javax.servlet.ServletContext JavaDoc;
33
34 import net.sf.jguard.ext.util.XMLUtils;
35
36 import org.apache.commons.logging.Log;
37 import org.apache.commons.logging.LogFactory;
38
39 public class WebappUtil {
40     
41     private static final Log logger = LogFactory.getLog(WebappUtil.class);
42     
43     
44     public static String JavaDoc getWebappHomePath(ServletContext JavaDoc context,String JavaDoc path) {
45         
46         String JavaDoc realPath = null;
47         
48         //use servletContext.getResource
49 try {
50             realPath = context.getResource(path).toString();
51         } catch (MalformedURLException JavaDoc e) {
52             throw new IllegalArgumentException JavaDoc(e.getMessage());
53         }
54         
55         if(realPath.startsWith("jndi:")&& context.getRealPath(path)!=null){
56             realPath = context.getRealPath(path);
57         }
58         
59         //if getRealPath fails, use the java standard edition way
60 if(realPath==null){
61             realPath = Thread.currentThread().getContextClassLoader().getResource(path).toString();
62         }
63         
64         
65         
66         if(logger.isDebugEnabled()){
67             logger.debug("webappHomePath="+realPath);
68         }
69
70         //used to replace blank spaces by '%20' and so on...
71 realPath = XMLUtils.resolveLocation(realPath);
72         
73         return realPath;
74
75         
76     }
77 }
78
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