| ResourceBundleUtil.java |
1 /**
2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or modify it under
5 * the terms of the GNU Lesser General Public License as published by the Free
6 * Software Foundation; either version 2.1 of the License, or (at your option)
7 * any later version.
8 *
9 * This library is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12 * details.
13 */
14
15 package com.liferay.util;
16
17 import com.liferay.portal.kernel.log.Log;
18 import com.liferay.portal.kernel.log.LogFactoryUtil;
19
20 import java.text.MessageFormat;
21
22 import java.util.Locale;
23 import java.util.ResourceBundle;
24
25 /**
26 * <a href="ResourceBundleUtil.java.html"><b><i>View Source</i></b></a>
27 *
28 * <p>
29 * This class provides a convenience routine named getString() that gets the
30 * value of a ResourceBundle key, but also provides the ability to perform
31 * search & replace on tokens within the value of the key.
32 * </p>
33 *
34 * @author Neil Griffin
35 */
36 public class ResourceBundleUtil {
37
38 public static String getString(
39 ResourceBundle bundle, Locale locale, String key, Object[] args) {
40
41 String value = null;
42
43 if (bundle == null) {
44 if (_log.isErrorEnabled()) {
45 _log.error("Resource bundle is null");
46 }
47 }
48 else {
49
50 // Get the value associated with the specified key, and substitute
51 // any arguuments like {0}, {1}, {2}, etc. with the specified
52 // argument values.
53
54 value = bundle.getString(key);
55
56 if (value == null) {
57 if (_log.isWarnEnabled()) {
58 _log.warn("No value found for key " + key);
59 }
60 }
61 else {
62 if ((args != null) && (args.length > 0)) {
63 MessageFormat format = new MessageFormat(value, locale);
64
65 value = format.format(args);
66 }
67 }
68 }
69
70 if (value == null) {
71 value = key;
72 }
73
74 return value;
75 }
76
77 private static Log _log = LogFactoryUtil.getLog(ResourceBundleUtil.class);
78
79 }