ComponentMessages


1   // Copyright 2004, 2005 The Apache Software Foundation
2   //
3   // Licensed under the Apache License, Version 2.0 (the "License");
4   // you may not use this file except in compliance with the License.
5   // You may obtain a copy of the License at
6   //
7   //     http://www.apache.org/licenses/LICENSE-2.0
8   //
9   // Unless required by applicable law or agreed to in writing, software
10  // distributed under the License is distributed on an "AS IS" BASIS,
11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  // See the License for the specific language governing permissions and
13  // limitations under the License.
14  
15  package org.apache.tapestry.services.impl;
16  
17  import java.text.MessageFormat  ;
18  import java.util.Locale  ;
19  import java.util.Properties  ;
20  
21  import org.apache.hivemind.Messages;
22  import org.apache.hivemind.impl.AbstractMessages;
23  import org.apache.hivemind.util.Defense;
24  
25  /**
26   * Implementation of {@link org.apache.hivemind.Messages}. This is basically a wrapper around an
27   * instance of {@link Properties}. This ensures that the properties are, in fact, read-only (which
28   * ensures that they don't have to be synchronized).
29   * 
30   * @author Howard Lewis Ship
31   * @since 2.0.4
32   */
33  
34  public class ComponentMessages extends AbstractMessages
35  {
36      private final Properties   _properties;
37  
38      private final Locale   _locale;
39  
40      public ComponentMessages(Locale   locale, Properties   properties)
41      {
42          Defense.notNull(locale, "locale");
43          Defense.notNull(properties, "properties");
44  
45          _locale = locale;
46          _properties = properties;
47      }
48  
49      protected String   findMessage(String   key)
50      {
51          return _properties.getProperty(key);
52      }
53  
54      protected Locale   getLocale()
55      {
56          return _locale;
57      }
58  }
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