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
|
/** Copyright 2003 by Jean-Hugues de Raigniac <jhraigniac@workingfrog.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
package org.workingfrog.i18n.util;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Locale;
import java.util.ResourceBundle;
/**
* Locate i18n resources in the file system.
*
* @author Jean-Hugues de Raigniac
*/
public class Loader {
/** Current Locale. */
private Locale locale = Locale.getDefault();
/** Needed to dynamically refresh bundles when they are modified. */
private HashMap resources = new HashMap();
/** Store bundles for current Locale. */
private HashMap bundles = new HashMap();
/**
* Empty constructor.
*/
public Loader() {
}
/**
* After instanciation, this method is needed to provide
* application's bundles.
* @param binding a key to retrieve the bundle
* @param resource path to the bundle
* @return the loaded bundle
*/
public ResourceBundle loadResource (String binding, String resource) {
ResourceBundle bundle = loadBundle(resource, locale);
resources.put(binding, resource);
bundles.put(binding, bundle);
return bundle;
}
/**
* Loading delegated to ResourceBundle.
* @param resource bundle key
* @param locale bundle Locale
* @return expected bundle
*/
private ResourceBundle loadBundle (String resource, Locale locale) {
return ResourceBundle.getBundle(resource, locale, getLoader());
}
/**
* Return a ResourceBundle.
* @param binding a key to a bundle
* @return the bundle tied to the binding
*/
public ResourceBundle getBundle (String binding) {
return (ResourceBundle) bundles.get(binding);
}
/**
* Return all ResourceBundles for current Locale.
* @return an HashMap of bundles
*/
public HashMap getBundles () {
return getBundles(locale);
}
/**
* Return all ResourceBundles for a Locale.
* @param locale bundles Locale
* @return an HashMap of bundles
*/
public HashMap getBundles (Locale locale) {
return loadBundles(locale);
}
/**
* Reload bundles for current Locale, useful after modification
* will running.
*/
public synchronized void reload () {
locale = Locale.getDefault();
bundles = loadBundles(locale);
}
/**
* Load ResourceBundles for a Locale.
* @param locale bundles Locale
* @return an HashMap of bundles
*/
private HashMap loadBundles (Locale locale) {
HashMap result = new HashMap();
Iterator iterator = resources.keySet().iterator();
while (iterator.hasNext()) {
String binding = (String) iterator.next();
result.put(binding,
loadBundle((String) resources.get(binding), locale));
}
return result;
}
/**
* Tool method.
* @return a ClassLoader
*/
private ClassLoader getLoader () {
return Loader.class.getClassLoader();
}
}
|
