1
19
20 package com.liferay.portal.kernel.util;
21
22 import com.liferay.portal.kernel.log.Log;
23 import com.liferay.portal.kernel.log.LogFactoryUtil;
24
25 import java.util.HashMap;
26 import java.util.Locale;
27 import java.util.Map;
28
29
35 public class LocaleUtil {
36
37 public static Locale fromLanguageId(String languageId) {
38 return _instance._fromLanguageId(languageId);
39 }
40
41 public static Locale[] fromLanguageIds(String[] languageIds) {
42 return _instance._fromLanguageIds(languageIds);
43 }
44
45 public static Locale getDefault() {
46 return _instance._getDefault();
47 }
48
49 public static LocaleUtil getInstance() {
50 return _instance;
51 }
52
53 public static void setDefault(
54 String userLanguage, String userCountry, String userVariant) {
55
56 _instance._setDefault(userLanguage, userCountry, userVariant);
57 }
58
59 public static String toLanguageId(Locale locale) {
60 return _instance._toLanguageId(locale);
61 }
62
63 public static String[] toLanguageIds(Locale[] locales) {
64 return _instance._toLanguageIds(locales);
65 }
66
67 private LocaleUtil() {
68 _locale = new Locale("en", "US");
69 }
70
71 private Locale _fromLanguageId(String languageId) {
72 if (languageId == null) {
73 return _locale;
74 }
75
76 Locale locale = null;
77
78 try {
79 locale = _locales.get(languageId);
80
81 if (locale == null) {
82 int pos = languageId.indexOf(StringPool.UNDERLINE);
83
84 if (pos == -1) {
85 locale = new Locale(languageId);
86 }
87 else {
88 String languageCode = languageId.substring(0, pos);
89 String countryCode = languageId.substring(
90 pos + 1, languageId.length());
91
92 locale = new Locale(languageCode, countryCode);
93 }
94
95 _locales.put(languageId, locale);
96 }
97 }
98 catch (Exception e) {
99 if (_log.isWarnEnabled()) {
100 _log.warn(languageId + " is not a valid language id");
101 }
102 }
103
104 if (locale == null) {
105 locale = _locale;
106 }
107
108 return locale;
109 }
110
111 private Locale[] _fromLanguageIds(String[] languageIds) {
112 Locale[] locales = new Locale[languageIds.length];
113
114 for (int i = 0; i < languageIds.length; i++) {
115 locales[i] = _fromLanguageId(languageIds[i]);
116 }
117
118 return locales;
119 }
120
121 private Locale _getDefault() {
122 return _locale;
123 }
124
125 public void _setDefault(
126 String userLanguage, String userCountry, String userVariant) {
127
128 if (Validator.isNotNull(userLanguage) &&
129 Validator.isNull(userCountry) && Validator.isNull(userVariant)) {
130
131 _locale = new Locale(userLanguage);
132 }
133 else if (Validator.isNotNull(userLanguage) &&
134 Validator.isNotNull(userCountry) &&
135 Validator.isNull(userVariant)) {
136
137 _locale = new Locale(userLanguage, userCountry);
138 }
139 else if (Validator.isNotNull(userLanguage) &&
140 Validator.isNotNull(userCountry) &&
141 Validator.isNotNull(userVariant)) {
142
143 _locale = new Locale(userLanguage, userCountry, userVariant);
144 }
145 }
146
147 private String _toLanguageId(Locale locale) {
148 if (locale == null) {
149 locale = _locale;
150 }
151
152 StringBuilder sb = new StringBuilder();
153
154 sb.append(locale.getLanguage());
155
156 if (Validator.isNotNull(locale.getCountry())) {
157 sb.append(StringPool.UNDERLINE);
158 sb.append(locale.getCountry());
159 }
160
161 return sb.toString();
162 }
163
164 private String[] _toLanguageIds(Locale[] locales) {
165 String[] languageIds = new String[locales.length];
166
167 for (int i = 0; i < locales.length; i++) {
168 languageIds[i] = _toLanguageId(locales[i]);
169 }
170
171 return languageIds;
172 }
173
174 private static Log _log = LogFactoryUtil.getLog(LocaleUtil.class);
175
176 private static LocaleUtil _instance = new LocaleUtil();
177
178 private Locale _locale;
179 private Map<String, Locale> _locales = new HashMap<String, Locale>();
180
181 }