1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.language;
24  
25  import com.liferay.portal.kernel.util.StringPool;
26  
27  import java.util.Locale;
28  import java.util.Map;
29  import java.util.concurrent.ConcurrentHashMap;
30  
31  import org.apache.struts.util.MessageResources;
32  
33  /**
34   * <a href="LanguageResources.java.html"><b><i>View Source</i></b></a>
35   *
36   * @author Brian Wing Shun Chan
37   *
38   */
39  public class LanguageResources {
40  
41      public LanguageResources(MessageResources resources) {
42          _resources = resources;
43          _cache = new ConcurrentHashMap<String, ResourceValue>(10000);
44      }
45  
46      public String getMessage(Locale locale, String key) {
47          String cacheKey = _getCacheKey(locale, key);
48  
49          ResourceValue resourceValue = _cache.get(cacheKey);
50  
51          if (resourceValue == null) {
52              String value = _resources.getMessage(locale, key);
53  
54              resourceValue = new ResourceValue(value);
55  
56              _cache.put(cacheKey, resourceValue);
57          }
58  
59          return resourceValue.getValue();
60      }
61  
62      private String _getCacheKey(Locale locale, String key) {
63          return String.valueOf(locale) + StringPool.POUND + key;
64      }
65  
66      private class ResourceValue {
67  
68          private ResourceValue(String value) {
69              _value = value;
70          }
71  
72          public String getValue() {
73              return _value;
74          }
75  
76          private String _value;
77  
78      }
79  
80      private Map<String, ResourceValue> _cache;
81      private MessageResources _resources;
82  
83  }