KickJava   Java API By Example, From Geeks To Geeks.

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


1 /* ====================================================================
2  *
3  * The ObjectStyle Group Software License, version 1.1
4  * ObjectStyle Group - http://objectstyle.org/
5  *
6  * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
7  * of the software. All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in
18  * the documentation and/or other materials provided with the
19  * distribution.
20  *
21  * 3. The end-user documentation included with the redistribution, if any,
22  * must include the following acknowlegement:
23  * "This product includes software developed by independent contributors
24  * and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
25  * Alternately, this acknowlegement may appear in the software itself,
26  * if and wherever such third-party acknowlegements normally appear.
27  *
28  * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse
29  * or promote products derived from this software without prior written
30  * permission. For written permission, email
31  * "andrus at objectstyle dot org".
32  *
33  * 5. Products derived from this software may not be called "ObjectStyle"
34  * or "Cayenne", nor may "ObjectStyle" or "Cayenne" appear in their
35  * names without prior written permission.
36  *
37  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40  * DISCLAIMED. IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
41  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48  * SUCH DAMAGE.
49  * ====================================================================
50  *
51  * This software consists of voluntary contributions made by many
52  * individuals and hosted on ObjectStyle Group web site. For more
53  * information on the ObjectStyle Group, please see
54  * <http://objectstyle.org/>.
55  */
56
57 package org.objectstyle.cayenne.util;
58
59 import java.util.MissingResourceException JavaDoc;
60 import java.util.ResourceBundle JavaDoc;
61
62 import org.apache.log4j.Logger;
63
64 // TODO: Merge with ModelerStrings (avoid code duplication). Allow
65 // customizable bundle location.
66
67 /**
68  * Provides access to various modeler resources (mainly strings)
69  * obtained via a ResourceBundle.
70  *
71  * @author Andrei Adamchik
72  */
73 public class LocalizedStringsHandler {
74     static final Logger logObj = Logger.getLogger(LocalizedStringsHandler.class);
75
76     public static final String JavaDoc DEFAULT_MESSAGE_BUNDLE =
77         "org.objectstyle.cayenne.cayenne-strings";
78
79     protected static ResourceBundle JavaDoc bundle;
80
81     /**
82      * Returns localized string for the given key.
83      */
84     public static String JavaDoc getString(String JavaDoc key) {
85         if (getBundle() == null) {
86             return "";
87         }
88
89         try {
90             return getBundle().getString(key);
91         }
92         catch (Throwable JavaDoc e) {
93             logObj.info("Error getting resource: " + key, e);
94             return "";
95         }
96     }
97
98     protected synchronized static ResourceBundle JavaDoc getBundle() {
99         if (bundle == null) {
100             try {
101                 bundle = ResourceBundle.getBundle(DEFAULT_MESSAGE_BUNDLE);
102             }
103             catch (MissingResourceException JavaDoc e) {
104                 logObj.error("Can't load properties: " + DEFAULT_MESSAGE_BUNDLE, e);
105             }
106         }
107         return bundle;
108     }
109 }
110
Popular Tags