Coverage Report

##### Coverage Report - org.webmacro.resource.ServletContextTemplateLoader

Classes in this File | Line Coverage | Branch Coverage | Complexity
ServletContextTemplateLoader |
0% | 0/21
0% | 0/14
| 4.666666666666667;4.667

1 |  |
     /*
2 |  |
      * Copyright (C) 1998-2000 Semiotek Inc.  All Rights Reserved.
3 |  |
      *
4 |  |
      * Redistribution and use in source and binary forms, with or without
5 |  |
      * modification, are permitted under the terms of either of the following
6 |  |
      * Open Source licenses:
7 |  |
      *
8 |  |
      * The GNU General Public License, version 2, or any later version, as
9 |  |
      * published by the Free Software Foundation
10 |  |
      * (http://www.fsf.org/copyleft/gpl.html);
11 |  |
      *
12 |  |
      *  or
13 |  |
      *
14 |  |
      * The Semiotek Public License (http://webmacro.org/LICENSE.)
15 |  |
      *
16 |  |
      * This software is provided "as is", with NO WARRANTY, not even the
17 |  |
      * implied warranties of fitness to purpose, or merchantability. You
18 |  |
      * assume all risks and liabilities associated with its use.
19 |  |
      *
20 |  |
      * See www.webmacro.org for more information on the WebMacro project.
21 |  |
      */
22 |  |
     package org.webmacro.resource;
23 |  |
24 |  |
     import org.slf4j.Logger;
25 |  |
     import org.slf4j.LoggerFactory;
26 |  |
     import org.webmacro.Broker;
27 |  |
     import org.webmacro.InitException;
28 |  |
     import org.webmacro.ResourceException;
29 |  |
     import org.webmacro.Template;
30 |  |
     import org.webmacro.servlet.ServletBroker;
31 |  |
     import org.webmacro.util.Settings;
32 |  |
33 |  |
     import javax.servlet.ServletContext;
34 |  |
     import java.net.MalformedURLException;
35 |  |
     import java.net.URL;
36 |  |
37 |  |
     /**
38 |  |
      * Implementation of TemplateLoader that loads template from web-apps.
39 |  |
      * This will require a broker that is an instance of org.webmacro.servlet.ServletBroker
40 |  |
      * to have access to the ServletContext.
41 |  |
      * <br>
42 |  |
      * Templates will be loaded by ServletContext.getResource().
43 |  |
      * The "path" setting is used as a prefix for all request, so it should
44 |  |
      * end with a slash.<br>
45 |  |
      * <br>
46 |  |
      * Example: If you have <pre>webapp:/WEB-INF/templates/</pre> as a
47 |  |
      * TemplateLoaderPath and request the template "foo/bar.wm", it will search for
48 |  |
      * "WEB-INF/templates/foo/bar.wm" in your web-app directory.
49 |  |
      * <br>
50 |  |
      * This TemplateLoader will automatically add trailing and starting slashed, if they
51 |  |
      * are missing. The starting slash is required by the servlet specification.
52 |  |
      * @author Sebastian Kanthak (sebastian.kanthak@muehlheim.de)
53 |  |
      */
54 | 0 |
     public class ServletContextTemplateLoader extends AbstractTemplateLoader
55 |  |
     {
56 |  |
57 | 0 |
         static Logger _log =  LoggerFactory.getLogger(ServletContextTemplateLoader.class);
58 |  |
59 |  |
         private ServletContext loader;
60 |  |
         private String path;
61 |  |
62 |  |
         public void init (Broker broker, Settings config) throws InitException
63 |  |
         {
64 | 0 |
             super.init(broker, config);
65 | 0 |
             if (broker instanceof ServletBroker)
66 |  |
             {
67 | 0 |
                 loader = ((ServletBroker) broker).getServletContext();
68 |  |
             }
69 |  |
             else
70 |  |
             {
71 | 0 |
                 throw new InitException("ServletContextTemplateLoader only works with instances of " +
72 |  |
                         "org.webmacro.servlet.ServletBroker");
73 |  |
             }
74 | 0 |
         }
75 |  |
76 |  |
         public void setConfig (String config)
77 |  |
         {
78 |  |
             // as we'll later use this as a prefix, it should end with a slash
79 | 0 |
             if (config.length() > 0 && !config.endsWith("/"))
80 |  |
             {
81 | 0 |
                 _log.info("ServletContextTemplateLoader: appending \"/\" to path " + config);
82 | 0 |
                 config = config.concat("/");
83 |  |
             }
84 |  |
85 |  |
             // the spec says, this has to start with a slash
86 | 0 |
             if (!config.startsWith("/"))
87 |  |
             {
88 | 0 |
                 _log.info("ServletContextTemplateLoader: adding \"/\" at the beginning of path " + config);
89 | 0 |
                 config = "/".concat(config);
90 |  |
             }
91 | 0 |
             this.path = config;
92 | 0 |
         }
93 |  |
94 |  |
         public Template load (String query, CacheElement ce) throws ResourceException
95 |  |
         {
96 |  |
             try
97 |  |
             {
98 | 0 |
                 URL url = loader.getResource(path.concat(query));
99 | 0 |
                 if (url != null && _log.isDebugEnabled())
100 |  |
                 {
101 | 0 |
                     _log.debug("ServletContextTemplateProvider: Found Template " + url.toString());
102 |  |
                 }
103 | 0 |
                 return (url != null) ? helper.load(url, ce) : null;
104 |  |
             }
105 | 0 |
             catch (MalformedURLException e)
106 |  |
             {
107 | 0 |
                 throw new InvalidResourceException("ServletContextTemplateLoader: Could not load " + query, e);
108 |  |
             }
109 |  |
         }
110 |  |
     }