1 /*
2 * Copyright (c) 2012, 2014, 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.Collections;
38 import java.util.HashSet;
39 import java.util.Locale;
40 import java.util.Set;
41 import java.util.StringTokenizer;
42 import java.util.concurrent.ConcurrentHashMap;
43 import java.util.concurrent.ConcurrentMap;
44 import java.util.spi.CalendarDataProvider;
45 import java.util.spi.CalendarNameProvider;
46 import java.util.spi.CurrencyNameProvider;
47 import java.util.spi.LocaleNameProvider;
48 import java.util.spi.LocaleServiceProvider;
49 import java.util.spi.TimeZoneNameProvider;
50 import sun.util.resources.LocaleData;
51 import sun.util.spi.CalendarProvider;
52
53 /**
54 * LocaleProviderAdapter implementation for the legacy JRE locale data.
55 *
56 * @author Naoto Sato
57 * @author Masayoshi Okutsu
58 */
59 public class JRELocaleProviderAdapter extends LocaleProviderAdapter implements ResourceBundleBasedAdapter {
60
61 private static final String LOCALE_DATA_JAR_NAME = "localedata.jar";
62
63 private final ConcurrentMap<String, Set<String>> langtagSets
64 = new ConcurrentHashMap<>();
65
66 private final ConcurrentMap<Locale, LocaleResources> localeResourcesMap
67 = new ConcurrentHashMap<>();
68
69 // LocaleData specific to this LocaleProviderAdapter.
70 private volatile LocaleData localeData;
71
72 /**
73 * Returns the type of this LocaleProviderAdapter
74 */
75 @Override
76 public LocaleProviderAdapter.Type getAdapterType() {
77 return Type.JRE;
78 }
79
80 /**
81 * Getter method for Locale Service Providers
82 */
83 @Override
84 @SuppressWarnings("unchecked")
85 public <P extends LocaleServiceProvider> P getLocaleServiceProvider(Class<P> c) {
86 switch (c.getSimpleName()) {
87 case "BreakIteratorProvider":
88 return (P) getBreakIteratorProvider();
89 case "CollatorProvider":
90 return (P) getCollatorProvider();
91 case "DateFormatProvider":
92 return (P) getDateFormatProvider();
93 case "DateFormatSymbolsProvider":
94 return (P) getDateFormatSymbolsProvider();
95 case "DecimalFormatSymbolsProvider":
96 return (P) getDecimalFormatSymbolsProvider();
97 case "NumberFormatProvider":
98 return (P) getNumberFormatProvider();
99 case "CurrencyNameProvider":
100 return (P) getCurrencyNameProvider();
101 case "LocaleNameProvider":
102 return (P) getLocaleNameProvider();
103 case "TimeZoneNameProvider":
104 return (P) getTimeZoneNameProvider();
105 case "CalendarDataProvider":
106 return (P) getCalendarDataProvider();
107 case "CalendarNameProvider":
108 return (P) getCalendarNameProvider();
109 case "CalendarProvider":
110 return (P) getCalendarProvider();
111 default:
112 throw new InternalError("should not come down here");
113 }
114 }
115
116 private volatile BreakIteratorProvider breakIteratorProvider = null;
117 private volatile CollatorProvider collatorProvider = null;
118 private volatile DateFormatProvider dateFormatProvider = null;
119 private volatile DateFormatSymbolsProvider dateFormatSymbolsProvider = null;
120 private volatile DecimalFormatSymbolsProvider decimalFormatSymbolsProvider = null;
121 private volatile NumberFormatProvider numberFormatProvider = null;
122
123 private volatile CurrencyNameProvider currencyNameProvider = null;
124 private volatile LocaleNameProvider localeNameProvider = null;
125 private volatile TimeZoneNameProvider timeZoneNameProvider = null;
126 private volatile CalendarDataProvider calendarDataProvider = null;
127 private volatile CalendarNameProvider calendarNameProvider = null;
128
129 private volatile CalendarProvider calendarProvider = null;
130
131 /*
132 * Getter methods for java.text.spi.* providers
133 */
134 @Override
135 public BreakIteratorProvider getBreakIteratorProvider() {
136 if (breakIteratorProvider == null) {
137 BreakIteratorProvider provider = new BreakIteratorProviderImpl(getAdapterType(),
138 getLanguageTagSet("FormatData"));
139 synchronized (this) {
140 if (breakIteratorProvider == null) {
141 breakIteratorProvider = provider;
142 }
143 }
144 }
145 return breakIteratorProvider;
146 }
147
148 @Override
149 public CollatorProvider getCollatorProvider() {
150 if (collatorProvider == null) {
151 CollatorProvider provider = new CollatorProviderImpl(getAdapterType(),
152 getLanguageTagSet("CollationData"));
153 synchronized (this) {
154 if (collatorProvider == null) {
155 collatorProvider = provider;
156 }
157 }
158 }
159 return collatorProvider;
160 }
161
162 @Override
163 public DateFormatProvider getDateFormatProvider() {
164 if (dateFormatProvider == null) {
165 DateFormatProvider provider = new DateFormatProviderImpl(getAdapterType(),
166 getLanguageTagSet("FormatData"));
167 synchronized (this) {
168 if (dateFormatProvider == null) {
169 dateFormatProvider = provider;
170 }
171 }
172 }
173 return dateFormatProvider;
174 }
175
176 @Override
177 public DateFormatSymbolsProvider getDateFormatSymbolsProvider() {
178 if (dateFormatSymbolsProvider == null) {
179 DateFormatSymbolsProvider provider = new DateFormatSymbolsProviderImpl(getAdapterType(),
180 getLanguageTagSet("FormatData"));
181 synchronized (this) {
182 if (dateFormatSymbolsProvider == null) {
183 dateFormatSymbolsProvider = provider;
184 }
185 }
186 }
187 return dateFormatSymbolsProvider;
188 }
189
190 @Override
191 public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
192 if (decimalFormatSymbolsProvider == null) {
193 DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguageTagSet("FormatData"));
194 synchronized (this) {
195 if (decimalFormatSymbolsProvider == null) {
196 decimalFormatSymbolsProvider = provider;
197 }
198 }
199 }
200 return decimalFormatSymbolsProvider;
201 }
202
203 @Override
204 public NumberFormatProvider getNumberFormatProvider() {
205 if (numberFormatProvider == null) {
206 NumberFormatProvider provider = new NumberFormatProviderImpl(getAdapterType(),
207 getLanguageTagSet("FormatData"));
208 synchronized (this) {
209 if (numberFormatProvider == null) {
210 numberFormatProvider = provider;
211 }
212 }
213 }
214 return numberFormatProvider;
215 }
216
217 /**
218 * Getter methods for java.util.spi.* providers
219 */
220 @Override
221 public CurrencyNameProvider getCurrencyNameProvider() {
222 if (currencyNameProvider == null) {
223 CurrencyNameProvider provider = new CurrencyNameProviderImpl(getAdapterType(),
224 getLanguageTagSet("CurrencyNames"));
225 synchronized (this) {
226 if (currencyNameProvider == null) {
227 currencyNameProvider = provider;
228 }
229 }
230 }
231 return currencyNameProvider;
232 }
233
234 @Override
235 public LocaleNameProvider getLocaleNameProvider() {
236 if (localeNameProvider == null) {
237 LocaleNameProvider provider = new LocaleNameProviderImpl(getAdapterType(),
238 getLanguageTagSet("LocaleNames"));
239 synchronized (this) {
240 if (localeNameProvider == null) {
241 localeNameProvider = provider;
242 }
243 }
244 }
245 return localeNameProvider;
246 }
247
248 @Override
249 public TimeZoneNameProvider getTimeZoneNameProvider() {
250 if (timeZoneNameProvider == null) {
251 TimeZoneNameProvider provider = new TimeZoneNameProviderImpl(getAdapterType(),
252 getLanguageTagSet("TimeZoneNames"));
253 synchronized (this) {
254 if (timeZoneNameProvider == null) {
255 timeZoneNameProvider = provider;
256 }
257 }
258 }
259 return timeZoneNameProvider;
260 }
261
262 @Override
263 public CalendarDataProvider getCalendarDataProvider() {
264 if (calendarDataProvider == null) {
265 CalendarDataProvider provider;
266 provider = new CalendarDataProviderImpl(getAdapterType(),
267 getLanguageTagSet("CalendarData"));
268 synchronized (this) {
269 if (calendarDataProvider == null) {
270 calendarDataProvider = provider;
271 }
272 }
273 }
274 return calendarDataProvider;
275 }
276
277 @Override
278 public CalendarNameProvider getCalendarNameProvider() {
279 if (calendarNameProvider == null) {
280 CalendarNameProvider provider;
281 provider = new CalendarNameProviderImpl(getAdapterType(),
282 getLanguageTagSet("FormatData"));
283 synchronized (this) {
284 if (calendarNameProvider == null) {
285 calendarNameProvider = provider;
286 }
287 }
288 }
289 return calendarNameProvider;
290 }
291
292 /**
293 * Getter methods for sun.util.spi.* providers
294 */
295 @Override
296 public CalendarProvider getCalendarProvider() {
297 if (calendarProvider == null) {
298 CalendarProvider provider = new CalendarProviderImpl(getAdapterType(),
299 getLanguageTagSet("CalendarData"));
300 synchronized (this) {
301 if (calendarProvider == null) {
302 calendarProvider = provider;
303 }
304 }
305 }
306 return calendarProvider;
307 }
308
309 @Override
310 public LocaleResources getLocaleResources(Locale locale) {
311 LocaleResources lr = localeResourcesMap.get(locale);
312 if (lr == null) {
313 lr = new LocaleResources(this, locale);
314 LocaleResources lrc = localeResourcesMap.putIfAbsent(locale, lr);
315 if (lrc != null) {
316 lr = lrc;
317 }
318 }
319 return lr;
320 }
321
322 // ResourceBundleBasedAdapter method implementation
323 @Override
324 public LocaleData getLocaleData() {
325 if (localeData == null) {
326 synchronized (this) {
327 if (localeData == null) {
328 localeData = new LocaleData(getAdapterType());
329 }
330 }
331 }
332 return localeData;
333 }
334
335 /**
336 * Returns a list of the installed locales. Currently, this simply returns
337 * the list of locales for which a sun.text.resources.FormatData bundle
338 * exists. This bundle family happens to be the one with the broadest
339 * locale coverage in the JRE.
340 */
341 @Override
342 public Locale[] getAvailableLocales() {
343 return AvailableJRELocales.localeList.clone();
344 }
345
346 public Set<String> getLanguageTagSet(String category) {
347 Set<String> tagset = langtagSets.get(category);
348 if (tagset == null) {
349 tagset = createLanguageTagSet(category);
350 Set<String> ts = langtagSets.putIfAbsent(category, tagset);
351 if (ts != null) {
352 tagset = ts;
353 }
354 }
355 return tagset;
356 }
357
358 protected Set<String> createLanguageTagSet(String category) {
359 String supportedLocaleString = LocaleDataMetaInfo.getSupportedLocaleString(category);
360 if (supportedLocaleString == null) {
361 return Collections.emptySet();
362 }
363 Set<String> tagset = new HashSet<>();
364 StringTokenizer tokens = new StringTokenizer(supportedLocaleString);
365 while (tokens.hasMoreTokens()) {
366 String token = tokens.nextToken();
367 if (token.equals("|")) {
368 if (isNonENLangSupported()) {
369 continue;
370 }
371 break;
372 }
373 tagset.add(token);
374 }
375
376 return tagset;
377 }
378
379 /**
380 * Lazy load available locales.
381 */
382 private static class AvailableJRELocales {
383 private static final Locale[] localeList = createAvailableLocales();
384 private AvailableJRELocales() {
385 }
386 }
387
388 private static Locale[] createAvailableLocales() {
389 /*
390 * Gets the locale string list from LocaleDataMetaInfo class and then
391 * contructs the Locale array and a set of language tags based on the
392 * locale string returned above.
393 */
394 String supportedLocaleString = LocaleDataMetaInfo.getSupportedLocaleString("AvailableLocales");
395
396 if (supportedLocaleString.length() == 0) {
397 throw new InternalError("No available locales for JRE");
398 }
399
400 /*
401 * Look for "|" and construct a new locale string list.
402 */
403 int barIndex = supportedLocaleString.indexOf('|');
404 StringTokenizer localeStringTokenizer;
405 if (isNonENLangSupported()) {
406 localeStringTokenizer = new StringTokenizer(supportedLocaleString.substring(0, barIndex)
407 + supportedLocaleString.substring(barIndex + 1));
408 } else {
409 localeStringTokenizer = new StringTokenizer(supportedLocaleString.substring(0, barIndex));
410 }
411
412 int length = localeStringTokenizer.countTokens();
413 Locale[] locales = new Locale[length + 1];
414 locales[0] = Locale.ROOT;
415 for (int i = 1; i <= length; i++) {
416 String currentToken = localeStringTokenizer.nextToken();
417 switch (currentToken) {
418 case "ja-JP-JP":
419 locales[i] = JRELocaleConstants.JA_JP_JP;
420 break;
421 case "no-NO-NY":
422 locales[i] = JRELocaleConstants.NO_NO_NY;
423 break;
424 case "th-TH-TH":
425 locales[i] = JRELocaleConstants.TH_TH_TH;
426 break;
427 default:
428 locales[i] = Locale.forLanguageTag(currentToken);
429 }
430 }
431 return locales;
432 }
433
434 private static volatile Boolean isNonENSupported = null;
435
436 /*
437 * Returns true if the non EN resources jar file exists in jre
438 * extension directory. @returns true if the jar file is there. Otherwise,
439 * returns false.
440 */
441 private static boolean isNonENLangSupported() {
442 if (isNonENSupported == null) {
443 synchronized (JRELocaleProviderAdapter.class) {
444 if (isNonENSupported == null) {
445 final String sep = File.separator;
446 String localeDataJar =
447 java.security.AccessController.doPrivileged(
448 new sun.security.action.GetPropertyAction("java.home"))
449 + sep + "lib" + sep + "ext" + sep + LOCALE_DATA_JAR_NAME;
450
451 /*
452 * Peek at the installed extension directory to see if
453 * localedata.jar is installed or not.
454 */
455 final File f = new File(localeDataJar);
456 isNonENSupported =
457 AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
458 @Override
459 public Boolean run() {
460 return f.exists();
461 }
462 });
463 }
464 }
465 }
466 return isNonENSupported;
467 }
468 }