Coverage Report

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

Classes in this File | Line Coverage | Branch Coverage | Complexity
CachingProvider |
58% | 14/24
50% | 3/6
| 1.5714285714285714;1.571

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 |  |
23 |  |
24 |  |
     package org.webmacro.resource;
25 |  |
26 |  |
     import org.slf4j.Logger;
27 |  |
     import org.slf4j.LoggerFactory;
28 |  |
     import org.webmacro.Broker;
29 |  |
     import org.webmacro.InitException;
30 |  |
     import org.webmacro.Provider;
31 |  |
     import org.webmacro.ResourceException;
32 |  |
     import org.webmacro.util.Settings;
33 |  |
34 |  |
     /**
35 |  |
      * CacheManager is an abstract base class for providers which wish to
36 |  |
      * implement caching functionality.  By extending CachingProvider and
37 |  |
      * implementing the methods in ResourceLoader, a provider can
38 |  |
      * automatically support caching using any CacheManager.  CachingProvider
39 |  |
      * looks in the properties file to find the desired cache manager.
40 |  |
      * @since 0.96
41 |  |
      */
42 |  |
43 |  |
     abstract public class CachingProvider implements Provider,
44 |  |
             ResourceLoader
45 |  |
     {
46 |  |
47 | 2 |
         static Logger _log =  LoggerFactory.getLogger(CachingProvider.class);
48 |  |
49 |  |
         private CacheManager _cache;
50 |  |
         protected boolean _cacheSupportsReload;
51 |  |
52 |  |
         public CachingProvider ()
53 | 12 |
         {
54 | 12 |
         }
55 |  |
56 |  |
         /**
57 |  |
          * If you override this method be sure and call super.init(...)
58 |  |
          */
59 |  |
         public void init (Broker b, Settings config) throws InitException
60 |  |
         {
61 |  |
             String cacheManager;
62 |  |
63 | 12 |
             cacheManager = b.getSetting("CachingProvider." + getType()
64 |  |
                     + ".CacheManager");
65 | 12 |
             if (cacheManager == null)
66 | 0 |
                 cacheManager = b.getSetting("CachingProvider.*.CacheManager");
67 | 12 |
             if (cacheManager == null || cacheManager.equals(""))
68 |  |
             {
69 | 0 |
                 _log.info("CachingProvider: No cache manager specified for "
70 |  |
                         + getType() + ", using TrivialCacheManager");
71 | 0 |
                 _cache = new TrivialCacheManager();
72 |  |
             }
73 |  |
             else
74 |  |
             {
75 |  |
                 try
76 |  |
                 {
77 | 12 |
                     _cache = (CacheManager) b.classForName(cacheManager).newInstance();
78 |  |
                 }
79 | 0 |
                 catch (Exception e)
80 |  |
                 {
81 | 0 |
                     _log.warn("Unable to load cache manager " + cacheManager
82 |  |
                             + " for resource type " + getType()
83 |  |
                             + ", using TrivialCacheManager.  Reason:\n" + e);
84 | 0 |
                     _cache = new TrivialCacheManager();
85 | 12 |
                 }
86 |  |
             }
87 | 12 |
             _cache.init(b, config, getType());
88 | 12 |
             _cacheSupportsReload = _cache.supportsReload();
89 | 12 |
         }
90 |  |
91 |  |
         /**
92 |  |
          * Clear the cache. If you override this method be sure
93 |  |
          * and call super.flush().
94 |  |
          */
95 |  |
         public void flush ()
96 |  |
         {
97 | 0 |
             _cache.flush();
98 | 0 |
         }
99 |  |
100 |  |
         /**
101 |  |
          * Close down the provider. If you override this method be
102 |  |
          * sure and call super.destroy().
103 |  |
          */
104 |  |
         public void destroy ()
105 |  |
         {
106 | 0 |
             _cache.destroy();
107 | 0 |
         }
108 |  |
109 |  |
         /**
110 |  |
          * Get the object associated with the specific query, using the
111 |  |
          * specified cache manager.
112 |  |
          */
113 |  |
         public Object get (String query) throws ResourceException
114 |  |
         {
115 | 1542 |
             return _cache.get(query, this);
116 |  |
         }
117 |  |
118 |  |
         /**
119 |  |
          * Delegates to ResourceLoader implementers the load operation
120 |  |
          * by casting the query as a string and invoking the
121 |  |
          * implemented method.
122 |  |
          */
123 |  |
         public Object load (Object query, CacheElement ce)
124 |  |
                 throws ResourceException
125 |  |
         {
126 | 544 |
             return ((ResourceLoader) this).load((String) query, ce);
127 |  |
         }
128 |  |
129 |  |
         public String toString ()
130 |  |
         {
131 | 12 |
             return "CachingProvider(type = " + getType() + ")";
132 |  |
         }
133 |  |
134 |  |
135 |  |
     }