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1
9 package org.jboss.portal.common.util;
10
11 import java.util.Collection  ;
12 import java.util.Collections ;
13 import java.util.Comparator ;
14 import java.util.HashMap ;
15 import java.util.Iterator ;
16 import java.util.Locale ;
17 import java.util.Map ;
18 import java.util.Set ;
19 import java.util.TreeSet ;
20
21 import org.apache.log4j.Logger;
22
23
27 public final class LocaleInfo
28 {
29
30
32 private static Logger log = Logger.getLogger(LocaleInfo.class);
33
34
35 private static final Map infos = initializeInfos();
36
37
38 private static final Set all = initializeSet();
39
40
42
43 private LocaleInfo parent;
44
45
46 private Locale locale;
47
48
49 private String trailingName;
50
51
53 private LocaleInfo(Locale locale)
54 {
55 this.locale = locale;
56 this.trailingName = computeTrailingName(locale);
57 }
58
59
61 public LocaleInfo getParent()
62 {
63 return parent;
64 }
65
66 public Locale getLocale()
67 {
68 return locale;
69 }
70
71 public String getTrailingName()
72 {
73 return trailingName;
74 }
75
76
78 public String toString()
79 {
80 return locale.toString();
81 }
82
83
85
92 public static final String computeTrailingName(Locale locale) throws IllegalArgumentException
93 {
94 if (locale == null)
95 {
96 throw new IllegalArgumentException ("locale parameter is null");
97 }
98 StringBuffer tmp = new StringBuffer ();
99 if (locale.getLanguage() != null && locale.getLanguage().length() > 0)
100 {
101 tmp.append('_').append(locale.getLanguage());
102 if (locale.getCountry() != null && locale.getCountry().length() > 0)
103 {
104 tmp.append('_').append(locale.getCountry());
105 {
106 if (locale.getVariant() != null && locale.getVariant().length() > 0)
107 {
108 tmp.append('_').append(locale.getVariant());
109 }
110 }
111 }
112 }
113 return tmp.toString();
114 }
115
116 private static final Map initializeInfos()
117 {
118 Map locales = new HashMap ();
119
120 Locale [] temp = Locale.getAvailableLocales();
122 for (int i = 0;i < temp.length;i++)
123 {
124 Locale locale = temp[i];
125 LocaleInfo info = new LocaleInfo(locale);
126 locales.put(locale.toString(), info);
127 log.debug("LocaleInfo " + locale.toString() + " initialized");
128 }
129
130 for (Iterator i = locales.values().iterator();i.hasNext();)
132 {
133 LocaleInfo info = (LocaleInfo)i.next();
134 LocaleInfo parent = null;
135 Locale locale = info.locale;
136
137 if (locale.getVariant() != null && locale.getVariant().length() > 0)
139 {
140 Locale key = new Locale (locale.getLanguage(), locale.getCountry());
141 parent = (LocaleInfo)locales.get(key.toString());
142 }
143
144 if (parent == null && locale.getCountry() != null && locale.getCountry().length() > 0)
146 {
147 Locale key = new Locale (locale.getLanguage());
148 parent = (LocaleInfo)locales.get(key.toString());
149 }
150
151 info.parent = parent;
153 }
154
155 return Collections.unmodifiableMap(locales);
156 }
157
158 private static final Set initializeSet()
159 {
160 TreeSet set = new TreeSet (new Comparator ()
161 {
162 public int compare(Object o1, Object o2)
163 {
164 String s1 = ((LocaleInfo)o1).getTrailingName();
165 String s2 = ((LocaleInfo)o2).getTrailingName();
166 return s1.compareTo(s2);
167 }
168 });
169 set.addAll(infos.values());
170 return Collections.unmodifiableSet(set);
171 }
172
173 public static Collection getAll()
174 {
175 return all;
176 }
177
178 public static LocaleInfo decodeLocaleInfo(String code)
179 {
180 return (LocaleInfo)infos.get(code);
181 }
182
183 public static LocaleInfo decodeLocaleInfo(Locale locale)
184 {
185 return (LocaleInfo)infos.get(locale.toString());
186 }
187 }
188 |
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