1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/*****************************************************************************
* Java Plug-in Framework (JPF)
* Copyright (C) 2004-2005 Dmitry Olshansky
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*****************************************************************************/
package org.java.plugin.util;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
/**
* Utility class to manage localization resources. This class is not for public
* usage but mainly for custom implementations developers to provide them
* uniform access and organization of locale specific data.
* <br>
* Class usage is very simple. Put your locale sensible data into
* <code>Resources.properties</code> files and save them near classes that you
* are going to get localized. For {@link java.util.Locale} to file mapping
* details see {@link ResourceBundle} documentation.
*
* @version $Id$
*/
public final class ResourceManager {
private static final Object FAKE_BUNDLE = new Object();
private static final Map<String, Object> bundles =
Collections.synchronizedMap(new HashMap<String, Object>());
/**
* @param packageName package name, used for
* <code>Resources.properties</code> file look-up
* @param messageKey message key
* @return message for {@link Locale#getDefault() default locale}
*/
public static String getMessage(final String packageName,
final String messageKey) {
return getMessage(packageName, messageKey, Locale.getDefault(), null);
}
/**
* @param packageName package name, used for
* <code>Resources.properties</code> file look-up
* @param messageKey message key
* @param data data for parameter placeholders substitution, may be
* <code>Object</code>, <code>array</code> or
* <code>Collection</code>.
* @return message for {@link Locale#getDefault() default locale}
*/
public static String getMessage(final String packageName,
final String messageKey, final Object data) {
return getMessage(packageName, messageKey, Locale.getDefault(), data);
}
/**
* @param packageName package name, used for
* <code>Resources.properties</code> file look-up
* @param messageKey message key
* @param locale locale to get message for
* @return message for given locale
*/
public static String getMessage(final String packageName,
final String messageKey, final Locale locale) {
return getMessage(packageName, messageKey, locale, null);
}
/**
* @param packageName package name, used for
* <code>Resources.properties</code> file look-up
* @param messageKey message key
* @param locale locale to get message for
* @param data data for parameter placeholders substitution, may be
* <code>Object</code>, <code>array</code> or
* <code>Collection</code>.
* @return message for given locale
*/
public static String getMessage(final String packageName,
final String messageKey, final Locale locale, final Object data) {
Object obj = bundles.get(packageName + '|' + locale);
if (obj == null) {
try {
obj = ResourceBundle.getBundle(packageName + ".Resources", //$NON-NLS-1$
locale);
} catch (MissingResourceException mre) {
obj = FAKE_BUNDLE;
}
bundles.put(packageName + '|' + locale, obj);
}
if (obj == FAKE_BUNDLE) {
return "resource " + packageName + '.' + messageKey //$NON-NLS-1$
+ " not found for locale " + locale; //$NON-NLS-1$
}
try {
String result = ((ResourceBundle) obj).getString(messageKey);
return (data == null) ? result : processParams(result, data);
} catch (MissingResourceException mre) {
return "resource " + packageName + '.' + messageKey //$NON-NLS-1$
+ " not found for locale " + locale; //$NON-NLS-1$
}
}
private static String processParams(final String str, final Object data) {
String result = str;
if ((data != null) && data.getClass().isArray()) {
Object[] params = (Object[])data;
for (int i = 0; i < params.length; i++) {
result = replaceAll(result, "{" + i + "}", "" + params[i]); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
} else if (data instanceof Collection) {
int i = 0;
for (Object object : (Collection) data) {
result = replaceAll(result, "{" + i++ + "}", "" + object); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
} else {
result = replaceAll(result, "{0}", "" + data); //$NON-NLS-1$ //$NON-NLS-2$
}
return result;
}
private static String replaceAll(final String str, final String from,
final String to) {
String result = str;
int p = 0;
while (true) {
p = result.indexOf(from, p);
if (p == -1) {
break;
}
result = result.substring(0, p) + to
+ result.substring(p + from.length());
p += to.length();
}
return result;
}
private ResourceManager() {
// no-op
}
}
|
