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Java > Open Source Codes > org > apache > cayenne > util > LocalizedStringsHandler


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19
20
21 package org.apache.cayenne.util;
22
23 import java.util.MissingResourceException JavaDoc;
24 import java.util.ResourceBundle JavaDoc;
25
26 import org.apache.cayenne.CayenneRuntimeException;
27
28 // TODO: Merge with ModelerStrings (avoid code duplication). Allow
29 // customizable bundle location.
30
31 /**
32  * Provides access to various modeler resources (mainly strings) obtained via a
33  * ResourceBundle.
34  *
35  * @author Andrus Adamchik
36  */
37 public class LocalizedStringsHandler {
38
39     public static final String JavaDoc DEFAULT_MESSAGE_BUNDLE = "org.apache.cayenne.cayenne-strings";
40
41     protected static ResourceBundle JavaDoc bundle;
42
43     /**
44      * Returns localized string for the given key.
45      */
46     public static String JavaDoc getString(String JavaDoc key) {
47         if (getBundle() == null) {
48             return "";
49         }
50
51         try {
52             return getBundle().getString(key);
53         }
54         catch (Throwable JavaDoc e) {
55             return "";
56         }
57     }
58
59     protected synchronized static ResourceBundle JavaDoc getBundle() {
60         if (bundle == null) {
61             try {
62                 bundle = ResourceBundle.getBundle(DEFAULT_MESSAGE_BUNDLE);
63             }
64             catch (MissingResourceException JavaDoc e) {
65                 throw new CayenneRuntimeException("Can't load properties: "
66                         + DEFAULT_MESSAGE_BUNDLE, e);
67             }
68         }
69         return bundle;
70     }
71 }
72
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