##### Coverage Report - org.apache.turbine.services.localization.LocalizationTool

Classes in this File | Line Coverage | Branch Coverage | Complexity
LocalizationTool |
72% | 16/22
75% | 3/4
| 1.75;1,75

1 |  |
     package org.apache.turbine.services.localization;
2 |  |
3 |  |
     /*
4 |  |
      * Licensed to the Apache Software Foundation (ASF) under one
5 |  |
      * or more contributor license agreements.  See the NOTICE file
6 |  |
      * distributed with this work for additional information
7 |  |
      * regarding copyright ownership.  The ASF licenses this file
8 |  |
      * to you under the Apache License, Version 2.0 (the
9 |  |
      * "License"); you may not use this file except in compliance
10 |  |
      * with the License.  You may obtain a copy of the License at
11 |  |
      *
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      *   http://www.apache.org/licenses/LICENSE-2.0
13 |  |
      *
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      * Unless required by applicable law or agreed to in writing,
15 |  |
      * software distributed under the License is distributed on an
16 |  |
      * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 |  |
      * KIND, either express or implied.  See the License for the
18 |  |
      * specific language governing permissions and limitations
19 |  |
      * under the License.
20 |  |
      */
21 |  |
22 |  |
     import java.util.Locale;
23 |  |
     import java.util.MissingResourceException;
24 |  |
25 |  |
     import org.apache.commons.logging.Log;
26 |  |
     import org.apache.commons.logging.LogFactory;
27 |  |
     import org.apache.fulcrum.localization.LocalizationService;
28 |  |
     import org.apache.turbine.services.InstantiationException;
29 |  |
     import org.apache.turbine.services.TurbineServices;
30 |  |
     import org.apache.turbine.services.pull.ApplicationTool;
31 |  |
     import org.apache.turbine.util.RunData;
32 |  |
     /**
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      * A pull tool which provides lookups for localized text by delegating
34 |  |
      * to the configured Fulcrum <code>LocalizationService</code>.
35 |  |
      *
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      * @author <a href="mailto:epugh@upstate.com">Eric Pugh</a>
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      * @author <a href="mailto:dlr@collab.net">Daniel Rall</a>
38 |  |
      * @author <a href="mailto:jon@collab.net">Jon Stevens</a>
39 |  |
      */
40 |  |
     public class LocalizationTool implements ApplicationTool
41 |  |
     {
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         /** Logging */
43 | 16 |
         private static Log log = LogFactory.getLog(LocalizationTool.class);
44 |  |
         /** Fulcrum Localization component */
45 |  |
         private LocalizationService localizationService;
46 |  |
         /**
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          * The language and country information parsed from the request's
48 |  |
          * <code>Accept-Language</code> header.  Reset on each request.
49 |  |
          */
50 |  |
         protected Locale locale;
51 |  |
52 |  |
         /**
53 |  |
          * Lazy load the LocalizationService.
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          * @return a fulcrum LocalizationService
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          */
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         public LocalizationService getLocalizationService()
57 |  |
         {
58 | 17 |
             if (localizationService == null)
59 |  |
             {
60 |  |
                 try
61 |  |
                 {
62 | 12 |
                     localizationService = (LocalizationService)TurbineServices.getInstance()
63 |  |
                         .getService(LocalizationService.ROLE);
64 |  |
                 }
65 | 0 |
                 catch (Exception e)
66 |  |
                 {
67 | 0 |
                     throw new InstantiationException("Problem looking up Localization Service:"+e.getMessage());
68 | 12 |
                 }
69 |  |
             }
70 | 17 |
             return localizationService;
71 |  |
         }
72 |  |
73 |  |
         /**
74 |  |
          * Creates a new instance.  Used by <code>PullService</code>.
75 |  |
          */
76 |  |
         public LocalizationTool()
77 | 12 |
         {
78 | 12 |
             refresh();
79 | 12 |
         }
80 |  |
81 |  |
         /**
82 |  |
          * <p>Performs text lookups for localization.</p>
83 |  |
          *
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          * <p>Assuming there is a instance of this class with a HTTP
85 |  |
          * request set in your template's context named <code>l10n</code>,
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          * the VTL <code>$l10n.HELLO</code> would render to
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          * <code>hello</code> for English requests and <code>hola</code>
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          * in Spanish (depending on the value of the HTTP request's
89 |  |
          * <code>Accept-Language</code> header).</p>
90 |  |
          *
91 |  |
          * @param key The identifier for the localized text to retrieve.
92 |  |
          * @return The localized text.
93 |  |
          */
94 |  |
         public String get(String key)
95 |  |
         {
96 |  |
             try
97 |  |
             {
98 | 2 |
                 return getLocalizationService().getString(getBundleName(null), getLocale(), key);
99 |  |
             }
100 | 0 |
             catch (MissingResourceException noKey)
101 |  |
             {
102 | 0 |
                 log.error(noKey);
103 | 0 |
                 return null;
104 |  |
             }
105 |  |
         }
106 |  |
107 |  |
         /**
108 |  |
          * Gets the current locale.
109 |  |
          *
110 |  |
          * @return The locale currently in use.
111 |  |
          */
112 |  |
         public Locale getLocale()
113 |  |
         {
114 | 8 |
             return locale;
115 |  |
         }
116 |  |
117 |  |
         /**
118 |  |
          * The return value of this method is used to set the name of the
119 |  |
          * bundle used by this tool.  Useful as a hook for using a
120 |  |
          * different bundle than specified in your
121 |  |
          * <code>LocalizationService</code> configuration.
122 |  |
          *
123 |  |
          * @param data The inputs passed from {@link #init(Object)}.
124 |  |
          * (ignored by this implementation).
125 |  |
          */
126 |  |
         protected String getBundleName(Object data)
127 |  |
         {
128 | 2 |
             return getLocalizationService().getDefaultBundleName();
129 |  |
         }
130 |  |
131 |  |
         /**
132 |  |
          * Formats a localized value using the provided objects.
133 |  |
          *
134 |  |
          * @param key The identifier for the localized text to retrieve,
135 |  |
          * @param args The objects to use as {0}, {1}, etc. when
136 |  |
          *             formatting the localized text.
137 |  |
          * @return Formatted localized text.
138 |  |
          */
139 |  |
         public String format(String key, Object... args)
140 |  |
         {
141 | 0 |
             return getLocalizationService()
142 |  |
                     .format(getBundleName(null), getLocale(), key, args);
143 |  |
         }
144 |  |
145 |  |
         // ApplicationTool implementation
146 |  |
147 |  |
         /**
148 |  |
          * Sets the request to get the <code>Accept-Language</code> header
149 |  |
          * from (reset on each request).
150 |  |
          */
151 |  |
         @Override
152 |  |
         public void init(Object data)
153 |  |
         {
154 | 13 |
             if (data instanceof RunData)
155 |  |
             {
156 |  |
                 // Pull necessary information out of RunData while we have
157 |  |
                 // a reference to it.
158 | 13 |
                 locale = getLocalizationService().getLocale(((RunData) data).getRequest());
159 |  |
             }
160 | 13 |
         }
161 |  |
162 |  |
         /**
163 |  |
          * No-op.
164 |  |
          */
165 |  |
         @Override
166 |  |
         public void refresh()
167 |  |
         {
168 | 13 |
             locale = null;
169 | 13 |
         }
170 |  |
     }