1 /*
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.util.locale.provider;
27
28 import java.io.File;
29 import java.security.AccessController;
30 import java.security.PrivilegedAction;
31 import java.text.spi.BreakIteratorProvider;
32 import java.text.spi.CollatorProvider;
33 import java.text.spi.DateFormatProvider;
34 import java.text.spi.DateFormatSymbolsProvider;
35 import java.text.spi.DecimalFormatSymbolsProvider;
36 import java.text.spi.NumberFormatProvider;
37 import java.util.HashSet;
38 import java.util.Locale;
39 import java.util.Set;
40 import java.util.StringTokenizer;
41 import java.util.concurrent.ConcurrentHashMap;
42 import java.util.concurrent.ConcurrentMap;
43 import java.util.spi.CalendarDataProvider;
44 import java.util.spi.CurrencyNameProvider;
45 import java.util.spi.LocaleNameProvider;
46 import java.util.spi.LocaleServiceProvider;
47 import java.util.spi.TimeZoneNameProvider;
48 import sun.util.resources.LocaleData;
49
50 /**
51 * LocaleProviderAdapter implementation for the legacy JRE locale data.
52 *
53 * @author Naoto Sato
54 * @author Masayoshi Okutsu
55 */
56 public class JRELocaleProviderAdapter extends LocaleProviderAdapter {
57
58 private static final String LOCALE_DATA_JAR_NAME = "localedata.jar";
59
60 private final ConcurrentMap<String, Set<String>> langtagSets
61 = new ConcurrentHashMap<>();
62
63 private final ConcurrentMap<Locale, LocaleResources> localeResourcesMap
64 = new ConcurrentHashMap<>();
65
66 // LocaleData specific to this LocaleProviderAdapter.
67 private volatile LocaleData localeData;
68
69 /**
70 * Returns the type of this LocaleProviderAdapter
71 */
72 @Override
73 public LocaleProviderAdapter.Type getAdapterType() {
74 return LocaleProviderAdapter.Type.JRE;
75 }
76
77 /**
78 * Getter method for Locale Service Providers
79 */
80 @Override
81 @SuppressWarnings("unchecked")
82 public <P extends LocaleServiceProvider> P getLocaleServiceProvider(Class<P> c) {
83 switch (c.getSimpleName()) {
84 case "BreakIteratorProvider":
85 return (P) getBreakIteratorProvider();
86 case "CollatorProvider":
87 return (P) getCollatorProvider();
88 case "DateFormatProvider":
89 return (P) getDateFormatProvider();
90 case "DateFormatSymbolsProvider":
91 return (P) getDateFormatSymbolsProvider();
92 case "DecimalFormatSymbolsProvider":
93 return (P) getDecimalFormatSymbolsProvider();
94 case "NumberFormatProvider":
95 return (P) getNumberFormatProvider();
96 case "CurrencyNameProvider":
97 return (P) getCurrencyNameProvider();
98 case "LocaleNameProvider":
99 return (P) getLocaleNameProvider();
100 case "TimeZoneNameProvider":
101 return (P) getTimeZoneNameProvider();
102 case "CalendarDataProvider":
103 return (P) getCalendarDataProvider();
104 default:
105 throw new InternalError("should not come down here");
106 }
107 }
108
109 private volatile BreakIteratorProvider breakIteratorProvider = null;
110 private volatile CollatorProvider collatorProvider = null;
111 private volatile DateFormatProvider dateFormatProvider = null;
112 private volatile DateFormatSymbolsProvider dateFormatSymbolsProvider = null;
113 private volatile DecimalFormatSymbolsProvider decimalFormatSymbolsProvider = null;
114 private volatile NumberFormatProvider numberFormatProvider = null;
115
116 private volatile CurrencyNameProvider currencyNameProvider = null;
117 private volatile LocaleNameProvider localeNameProvider = null;
118 private volatile TimeZoneNameProvider timeZoneNameProvider = null;
119 private volatile CalendarDataProvider calendarDataProvider = null;
120
121 /*
122 * Getter methods for java.text.spi.* providers
123 */
124 @Override
125 public BreakIteratorProvider getBreakIteratorProvider() {
126 if (breakIteratorProvider == null) {
127 BreakIteratorProvider provider = new BreakIteratorProviderImpl(getAdapterType(),
128 getLanguateTagSet("FormatData"));
129 synchronized (this) {
130 if (breakIteratorProvider == null) {
131 breakIteratorProvider = provider;
132 }
133 }
134 }
135 return breakIteratorProvider;
136 }
137
138 @Override
139 public CollatorProvider getCollatorProvider() {
140 if (collatorProvider == null) {
141 CollatorProvider provider = new CollatorProviderImpl(getAdapterType(),
142 getLanguateTagSet("CollationData"));
143 synchronized (this) {
144 if (collatorProvider == null) {
145 collatorProvider = provider;
146 }
147 }
148 }
149 return collatorProvider;
150 }
151
152 @Override
153 public DateFormatProvider getDateFormatProvider() {
154 if (dateFormatProvider == null) {
155 DateFormatProvider provider = new DateFormatProviderImpl(getAdapterType(),
156 getLanguateTagSet("FormatData"));
157 synchronized (this) {
158 if (dateFormatProvider == null) {
159 dateFormatProvider = provider;
160 }
161 }
162 }
163 return dateFormatProvider;
164 }
165
166 @Override
167 public DateFormatSymbolsProvider getDateFormatSymbolsProvider() {
168 if (dateFormatSymbolsProvider == null) {
169 DateFormatSymbolsProvider provider = new DateFormatSymbolsProviderImpl(getAdapterType(),
170 getLanguateTagSet("FormatData"));
171 synchronized (this) {
172 if (dateFormatSymbolsProvider == null) {
173 dateFormatSymbolsProvider = provider;
174 }
175 }
176 }
177 return dateFormatSymbolsProvider;
178 }
179
180 @Override
181 public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
182 if (decimalFormatSymbolsProvider == null) {
183 DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguateTagSet("FormatData"));
184 synchronized (this) {
185 if (decimalFormatSymbolsProvider == null) {
186 decimalFormatSymbolsProvider = provider;
187 }
188 }
189 }
190 return decimalFormatSymbolsProvider;
191 }
192
193 @Override
194 public NumberFormatProvider getNumberFormatProvider() {
195 if (numberFormatProvider == null) {
196 NumberFormatProvider provider = new NumberFormatProviderImpl(getAdapterType(),
197 getLanguateTagSet("FormatData"));
198 synchronized (this) {
199 if (numberFormatProvider == null) {
200 numberFormatProvider = provider;
201 }
202 }
203 }
204 return numberFormatProvider;
205 }
206
207 /**
208 * Getter methods for java.util.spi.* providers
209 */
210 @Override
211 public CurrencyNameProvider getCurrencyNameProvider() {
212 if (currencyNameProvider == null) {
213 CurrencyNameProvider provider = new CurrencyNameProviderImpl(getAdapterType(),
214 getLanguateTagSet("CurrencyNames"));
215 synchronized (this) {
216 if (currencyNameProvider == null) {
217 currencyNameProvider = provider;
218 }
219 }
220 }
221 return currencyNameProvider;
222 }
223
224 @Override
225 public LocaleNameProvider getLocaleNameProvider() {
226 if (localeNameProvider == null) {
227 LocaleNameProvider provider = new LocaleNameProviderImpl(getAdapterType(),
228 getLanguateTagSet("LocaleNames"));
229 synchronized (this) {
230 if (localeNameProvider == null) {
231 localeNameProvider = provider;
232 }
233 }
234 }
235 return localeNameProvider;
236 }
237
238 @Override
239 public TimeZoneNameProvider getTimeZoneNameProvider() {
240 if (timeZoneNameProvider == null) {
241 TimeZoneNameProvider provider = new TimeZoneNameProviderImpl(getAdapterType(),
242 getLanguateTagSet("TimeZoneNames"));
243 synchronized (this) {
244 if (timeZoneNameProvider == null) {
245 timeZoneNameProvider = provider;
246 }
247 }
248 }
249 return timeZoneNameProvider;
250 }
251
252 @Override
253 public CalendarDataProvider getCalendarDataProvider() {
254 if (calendarDataProvider == null) {
255 Set<String> set = new HashSet<>();
256 set.addAll(getLanguateTagSet("FormatData"));
257 set.addAll(getLanguateTagSet("CalendarData"));
258 CalendarDataProvider provider = new CalendarDataProviderImpl(getAdapterType(),
259 set);
260 synchronized (this) {
261 if (calendarDataProvider == null) {
262 calendarDataProvider = provider;
263 }
264 }
265 }
266 return calendarDataProvider;
267 }
268
269 @Override
270 public LocaleResources getLocaleResources(Locale locale) {
271 LocaleResources lr = localeResourcesMap.get(locale);
272 if (lr == null) {
273 lr = new LocaleResources(this, locale);
274 LocaleResources lrc = localeResourcesMap.putIfAbsent(locale, lr);
275 if (lrc != null) {
276 lr = lrc;
277 }
278 }
279 return lr;
280 }
281
282 @Override
283 public LocaleData getLocaleData() {
284 if (localeData == null) {
285 synchronized (this) {
286 if (localeData == null) {
287 localeData = new LocaleData(getAdapterType());
288 }
289 }
290 }
291 return localeData;
292 }
293
294 /**
295 * Returns a list of the installed locales. Currently, this simply returns
296 * the list of locales for which a sun.text.resources.FormatData bundle
297 * exists. This bundle family happens to be the one with the broadest
298 * locale coverage in the JRE.
299 */
300 @Override
301 public Locale[] getAvailableLocales() {
302 return AvailableJRELocales.localeList.clone();
303 }
304
305 public Set<String> getLanguateTagSet(String category) {
306 Set<String> tagset = langtagSets.get(category);
307 if (tagset == null) {
308 tagset = createLanguageTagSet(category);
309 Set<String> ts = langtagSets.putIfAbsent(category, tagset);
310 if (ts != null) {
311 tagset = ts;
312 }
313 }
314 return tagset;
315 }
316
317 protected Set<String> createLanguageTagSet(String category) {
318 String supportedLocaleString = LocaleDataMetaInfo.getSupportedLocaleString(category);
319 Set<String> tagset = new HashSet<>();
320 StringTokenizer tokens = new StringTokenizer(supportedLocaleString);
321 while (tokens.hasMoreTokens()) {
322 String token = tokens.nextToken();
323 if (token.equals("|")) {
324 if (isNonEuroLangSupported()) {
325 continue;
326 }
327 break;
328 }
329 tagset.add(token);
330 }
331 return tagset;
332 }
333
334 /**
335 * Lazy load available locales.
336 */
337 private static class AvailableJRELocales {
338 private static final Locale[] localeList = createAvailableLocales();
339 private AvailableJRELocales() {
340 }
341 }
342
343 private static Locale[] createAvailableLocales() {
344 /*
345 * Gets the locale string list from LocaleDataMetaInfo class and then
346 * contructs the Locale array and a set of language tags based on the
347 * locale string returned above.
348 */
349 String supportedLocaleString = LocaleDataMetaInfo.getSupportedLocaleString("AvailableLocales");
350
351 if (supportedLocaleString.length() == 0) {
352 throw new InternalError("No available locales for JRE");
353 }
354
355 /*
356 * Look for "|" and construct a new locale string list.
357 */
358 int barIndex = supportedLocaleString.indexOf('|');
359 StringTokenizer localeStringTokenizer;
360 if (isNonEuroLangSupported()) {
361 localeStringTokenizer = new StringTokenizer(supportedLocaleString.substring(0, barIndex)
362 + supportedLocaleString.substring(barIndex + 1));
363 } else {
364 localeStringTokenizer = new StringTokenizer(supportedLocaleString.substring(0, barIndex));
365 }
366
367 int length = localeStringTokenizer.countTokens();
368 Locale[] locales = new Locale[length + 1];
369 locales[0] = Locale.ROOT;
370 for (int i = 1; i <= length; i++) {
371 String currentToken = localeStringTokenizer.nextToken();
372 switch (currentToken) {
373 case "ja-JP-JP":
374 locales[i] = JRELocaleConstants.JA_JP_JP;
375 break;
376 case "no-NO-NY":
377 locales[i] = JRELocaleConstants.NO_NO_NY;
378 break;
379 case "th-TH-TH":
380 locales[i] = JRELocaleConstants.TH_TH_TH;
381 break;
382 default:
383 locales[i] = Locale.forLanguageTag(currentToken);
384 }
385 }
386 return locales;
387 }
388
389 private static volatile Boolean isNonEuroSupported = null;
390
391 /*
392 * Returns true if the non European resources jar file exists in jre
393 * extension directory. @returns true if the jar file is there. Otherwise,
394 * returns false.
395 */
396 private static boolean isNonEuroLangSupported() {
397 if (isNonEuroSupported == null) {
398 synchronized (JRELocaleProviderAdapter.class) {
399 if (isNonEuroSupported == null) {
400 final String sep = File.separator;
401 String localeDataJar =
402 java.security.AccessController.doPrivileged(
403 new sun.security.action.GetPropertyAction("java.home"))
404 + sep + "lib" + sep + "ext" + sep + LOCALE_DATA_JAR_NAME;
405
406 /*
407 * Peek at the installed extension directory to see if
408 * localedata.jar is installed or not.
409 */
410 final File f = new File(localeDataJar);
411 isNonEuroSupported =
412 AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
413 @Override
414 public Boolean run() {
415 return f.exists();
416 }
417 });
418 }
419 }
420 }
421 return isNonEuroSupported;
422 }
423 }