J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1996-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | /* |
| 27 | * (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved |
| 28 | * (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved |
| 29 | * |
| 30 | * The original version of this source code and documentation |
| 31 | * is copyrighted and owned by Taligent, Inc., a wholly-owned |
| 32 | * subsidiary of IBM. These materials are provided under terms |
| 33 | * of a License Agreement between Taligent and Sun. This technology |
| 34 | * is protected by multiple US and International patents. |
| 35 | * |
| 36 | * This notice and attribution to Taligent may not be removed. |
| 37 | * Taligent is a registered trademark of Taligent, Inc. |
| 38 | * |
| 39 | */ |
| 40 | |
| 41 | package java.util; |
| 42 | |
| 43 | import java.io.*; |
| 44 | import java.security.AccessController; |
| 45 | import java.text.MessageFormat; |
| 46 | import java.util.List; |
| 47 | import java.util.concurrent.ConcurrentHashMap; |
| 48 | import java.util.spi.LocaleNameProvider; |
| 49 | import java.util.spi.LocaleServiceProvider; |
| 50 | import sun.security.action.GetPropertyAction; |
| 51 | import sun.util.LocaleServiceProviderPool; |
| 52 | import sun.util.resources.LocaleData; |
| 53 | import sun.util.resources.OpenListResourceBundle; |
| 54 | |
| 55 | /** |
| 56 | * |
| 57 | * A <code>Locale</code> object represents a specific geographical, political, |
| 58 | * or cultural region. An operation that requires a <code>Locale</code> to perform |
| 59 | * its task is called <em>locale-sensitive</em> and uses the <code>Locale</code> |
| 60 | * to tailor information for the user. For example, displaying a number |
| 61 | * is a locale-sensitive operation--the number should be formatted |
| 62 | * according to the customs/conventions of the user's native country, |
| 63 | * region, or culture. |
| 64 | * |
| 65 | * <P> |
| 66 | * Create a <code>Locale</code> object using the constructors in this class: |
| 67 | * <blockquote> |
| 68 | * <pre> |
| 69 | * Locale(String language) |
| 70 | * Locale(String language, String country) |
| 71 | * Locale(String language, String country, String variant) |
| 72 | * </pre> |
| 73 | * </blockquote> |
| 74 | * The language argument is a valid <STRONG>ISO Language Code.</STRONG> |
| 75 | * These codes are the lower-case, two-letter codes as defined by ISO-639. |
| 76 | * You can find a full list of these codes at a number of sites, such as: |
| 77 | * <BR><a href ="http://www.loc.gov/standards/iso639-2/php/English_list.php"> |
| 78 | * <code>http://www.loc.gov/standards/iso639-2/php/English_list.php</code></a> |
| 79 | * |
| 80 | * <P> |
| 81 | * The country argument is a valid <STRONG>ISO Country Code.</STRONG> These |
| 82 | * codes are the upper-case, two-letter codes as defined by ISO-3166. |
| 83 | * You can find a full list of these codes at a number of sites, such as: |
| 84 | * <BR><a href="http://www.iso.ch/iso/en/prods-services/iso3166ma/02iso-3166-code-lists/list-en1.html"> |
| 85 | * <code>http://www.iso.ch/iso/en/prods-services/iso3166ma/02iso-3166-code-lists/list-en1.html</code></a> |
| 86 | * |
| 87 | * <P> |
| 88 | * The variant argument is a vendor or browser-specific code. |
| 89 | * For example, use WIN for Windows, MAC for Macintosh, and POSIX for POSIX. |
| 90 | * Where there are two variants, separate them with an underscore, and |
| 91 | * put the most important one first. For example, a Traditional Spanish collation |
| 92 | * might construct a locale with parameters for language, country and variant as: |
| 93 | * "es", "ES", "Traditional_WIN". |
| 94 | * |
| 95 | * <P> |
| 96 | * Because a <code>Locale</code> object is just an identifier for a region, |
| 97 | * no validity check is performed when you construct a <code>Locale</code>. |
| 98 | * If you want to see whether particular resources are available for the |
| 99 | * <code>Locale</code> you construct, you must query those resources. For |
| 100 | * example, ask the <code>NumberFormat</code> for the locales it supports |
| 101 | * using its <code>getAvailableLocales</code> method. |
| 102 | * <BR><STRONG>Note:</STRONG> When you ask for a resource for a particular |
| 103 | * locale, you get back the best available match, not necessarily |
| 104 | * precisely what you asked for. For more information, look at |
| 105 | * {@link ResourceBundle}. |
| 106 | * |
| 107 | * <P> |
| 108 | * The <code>Locale</code> class provides a number of convenient constants |
| 109 | * that you can use to create <code>Locale</code> objects for commonly used |
| 110 | * locales. For example, the following creates a <code>Locale</code> object |
| 111 | * for the United States: |
| 112 | * <blockquote> |
| 113 | * <pre> |
| 114 | * Locale.US |
| 115 | * </pre> |
| 116 | * </blockquote> |
| 117 | * |
| 118 | * <P> |
| 119 | * Once you've created a <code>Locale</code> you can query it for information about |
| 120 | * itself. Use <code>getCountry</code> to get the ISO Country Code and |
| 121 | * <code>getLanguage</code> to get the ISO Language Code. You can |
| 122 | * use <code>getDisplayCountry</code> to get the |
| 123 | * name of the country suitable for displaying to the user. Similarly, |
| 124 | * you can use <code>getDisplayLanguage</code> to get the name of |
| 125 | * the language suitable for displaying to the user. Interestingly, |
| 126 | * the <code>getDisplayXXX</code> methods are themselves locale-sensitive |
| 127 | * and have two versions: one that uses the default locale and one |
| 128 | * that uses the locale specified as an argument. |
| 129 | * |
| 130 | * <P> |
| 131 | * The Java Platform provides a number of classes that perform locale-sensitive |
| 132 | * operations. For example, the <code>NumberFormat</code> class formats |
| 133 | * numbers, currency, or percentages in a locale-sensitive manner. Classes |
| 134 | * such as <code>NumberFormat</code> have a number of convenience methods |
| 135 | * for creating a default object of that type. For example, the |
| 136 | * <code>NumberFormat</code> class provides these three convenience methods |
| 137 | * for creating a default <code>NumberFormat</code> object: |
| 138 | * <blockquote> |
| 139 | * <pre> |
| 140 | * NumberFormat.getInstance() |
| 141 | * NumberFormat.getCurrencyInstance() |
| 142 | * NumberFormat.getPercentInstance() |
| 143 | * </pre> |
| 144 | * </blockquote> |
| 145 | * These methods have two variants; one with an explicit locale |
| 146 | * and one without; the latter using the default locale. |
| 147 | * <blockquote> |
| 148 | * <pre> |
| 149 | * NumberFormat.getInstance(myLocale) |
| 150 | * NumberFormat.getCurrencyInstance(myLocale) |
| 151 | * NumberFormat.getPercentInstance(myLocale) |
| 152 | * </pre> |
| 153 | * </blockquote> |
| 154 | * A <code>Locale</code> is the mechanism for identifying the kind of object |
| 155 | * (<code>NumberFormat</code>) that you would like to get. The locale is |
| 156 | * <STRONG>just</STRONG> a mechanism for identifying objects, |
| 157 | * <STRONG>not</STRONG> a container for the objects themselves. |
| 158 | * |
| 159 | * @see ResourceBundle |
| 160 | * @see java.text.Format |
| 161 | * @see java.text.NumberFormat |
| 162 | * @see java.text.Collator |
| 163 | * @author Mark Davis |
| 164 | * @since 1.1 |
| 165 | */ |
| 166 | |
| 167 | public final class Locale implements Cloneable, Serializable { |
| 168 | |
| 169 | // cache to store singleton Locales |
| 170 | private final static ConcurrentHashMap<String, Locale> cache = |
| 171 | new ConcurrentHashMap<String, Locale>(32); |
| 172 | |
| 173 | /** Useful constant for language. |
| 174 | */ |
| 175 | static public final Locale ENGLISH = createSingleton("en__", "en", ""); |
| 176 | |
| 177 | /** Useful constant for language. |
| 178 | */ |
| 179 | static public final Locale FRENCH = createSingleton("fr__", "fr", ""); |
| 180 | |
| 181 | /** Useful constant for language. |
| 182 | */ |
| 183 | static public final Locale GERMAN = createSingleton("de__", "de", ""); |
| 184 | |
| 185 | /** Useful constant for language. |
| 186 | */ |
| 187 | static public final Locale ITALIAN = createSingleton("it__", "it", ""); |
| 188 | |
| 189 | /** Useful constant for language. |
| 190 | */ |
| 191 | static public final Locale JAPANESE = createSingleton("ja__", "ja", ""); |
| 192 | |
| 193 | /** Useful constant for language. |
| 194 | */ |
| 195 | static public final Locale KOREAN = createSingleton("ko__", "ko", ""); |
| 196 | |
| 197 | /** Useful constant for language. |
| 198 | */ |
| 199 | static public final Locale CHINESE = createSingleton("zh__", "zh", ""); |
| 200 | |
| 201 | /** Useful constant for language. |
| 202 | */ |
| 203 | static public final Locale SIMPLIFIED_CHINESE = createSingleton("zh_CN_", "zh", "CN"); |
| 204 | |
| 205 | /** Useful constant for language. |
| 206 | */ |
| 207 | static public final Locale TRADITIONAL_CHINESE = createSingleton("zh_TW_", "zh", "TW"); |
| 208 | |
| 209 | /** Useful constant for country. |
| 210 | */ |
| 211 | static public final Locale FRANCE = createSingleton("fr_FR_", "fr", "FR"); |
| 212 | |
| 213 | /** Useful constant for country. |
| 214 | */ |
| 215 | static public final Locale GERMANY = createSingleton("de_DE_", "de", "DE"); |
| 216 | |
| 217 | /** Useful constant for country. |
| 218 | */ |
| 219 | static public final Locale ITALY = createSingleton("it_IT_", "it", "IT"); |
| 220 | |
| 221 | /** Useful constant for country. |
| 222 | */ |
| 223 | static public final Locale JAPAN = createSingleton("ja_JP_", "ja", "JP"); |
| 224 | |
| 225 | /** Useful constant for country. |
| 226 | */ |
| 227 | static public final Locale KOREA = createSingleton("ko_KR_", "ko", "KR"); |
| 228 | |
| 229 | /** Useful constant for country. |
| 230 | */ |
| 231 | static public final Locale CHINA = SIMPLIFIED_CHINESE; |
| 232 | |
| 233 | /** Useful constant for country. |
| 234 | */ |
| 235 | static public final Locale PRC = SIMPLIFIED_CHINESE; |
| 236 | |
| 237 | /** Useful constant for country. |
| 238 | */ |
| 239 | static public final Locale TAIWAN = TRADITIONAL_CHINESE; |
| 240 | |
| 241 | /** Useful constant for country. |
| 242 | */ |
| 243 | static public final Locale UK = createSingleton("en_GB_", "en", "GB"); |
| 244 | |
| 245 | /** Useful constant for country. |
| 246 | */ |
| 247 | static public final Locale US = createSingleton("en_US_", "en", "US"); |
| 248 | |
| 249 | /** Useful constant for country. |
| 250 | */ |
| 251 | static public final Locale CANADA = createSingleton("en_CA_", "en", "CA"); |
| 252 | |
| 253 | /** Useful constant for country. |
| 254 | */ |
| 255 | static public final Locale CANADA_FRENCH = createSingleton("fr_CA_", "fr", "CA"); |
| 256 | |
| 257 | /** |
| 258 | * Useful constant for the root locale. The root locale is the locale whose |
| 259 | * language, country, and variant are empty ("") strings. This is regarded |
| 260 | * as the base locale of all locales, and is used as the language/country |
| 261 | * neutral locale for the locale sensitive operations. |
| 262 | * |
| 263 | * @since 1.6 |
| 264 | */ |
| 265 | static public final Locale ROOT = createSingleton("__", "", ""); |
| 266 | |
| 267 | /** serialization ID |
| 268 | */ |
| 269 | static final long serialVersionUID = 9149081749638150636L; |
| 270 | |
| 271 | /** |
| 272 | * Display types for retrieving localized names from the name providers. |
| 273 | */ |
| 274 | private static final int DISPLAY_LANGUAGE = 0; |
| 275 | private static final int DISPLAY_COUNTRY = 1; |
| 276 | private static final int DISPLAY_VARIANT = 2; |
| 277 | |
| 278 | /** |
| 279 | * Construct a locale from language, country, variant. |
| 280 | * NOTE: ISO 639 is not a stable standard; some of the language codes it defines |
| 281 | * (specifically iw, ji, and in) have changed. This constructor accepts both the |
| 282 | * old codes (iw, ji, and in) and the new codes (he, yi, and id), but all other |
| 283 | * API on Locale will return only the OLD codes. |
| 284 | * @param language lowercase two-letter ISO-639 code. |
| 285 | * @param country uppercase two-letter ISO-3166 code. |
| 286 | * @param variant vendor and browser specific code. See class description. |
| 287 | * @exception NullPointerException thrown if any argument is null. |
| 288 | */ |
| 289 | public Locale(String language, String country, String variant) { |
| 290 | this.language = convertOldISOCodes(language); |
| 291 | this.country = toUpperCase(country).intern(); |
| 292 | this.variant = variant.intern(); |
| 293 | } |
| 294 | |
| 295 | /** |
| 296 | * Construct a locale from language, country. |
| 297 | * NOTE: ISO 639 is not a stable standard; some of the language codes it defines |
| 298 | * (specifically iw, ji, and in) have changed. This constructor accepts both the |
| 299 | * old codes (iw, ji, and in) and the new codes (he, yi, and id), but all other |
| 300 | * API on Locale will return only the OLD codes. |
| 301 | * @param language lowercase two-letter ISO-639 code. |
| 302 | * @param country uppercase two-letter ISO-3166 code. |
| 303 | * @exception NullPointerException thrown if either argument is null. |
| 304 | */ |
| 305 | public Locale(String language, String country) { |
| 306 | this(language, country, ""); |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * Construct a locale from a language code. |
| 311 | * NOTE: ISO 639 is not a stable standard; some of the language codes it defines |
| 312 | * (specifically iw, ji, and in) have changed. This constructor accepts both the |
| 313 | * old codes (iw, ji, and in) and the new codes (he, yi, and id), but all other |
| 314 | * API on Locale will return only the OLD codes. |
| 315 | * @param language lowercase two-letter ISO-639 code. |
| 316 | * @exception NullPointerException thrown if argument is null. |
| 317 | * @since 1.4 |
| 318 | */ |
| 319 | public Locale(String language) { |
| 320 | this(language, "", ""); |
| 321 | } |
| 322 | |
| 323 | /** |
| 324 | * Constructs a <code>Locale</code> using <code>language</code> |
| 325 | * and <code>country</code>. This constructor assumes that |
| 326 | * <code>language</code> and <code>contry</code> are interned and |
| 327 | * it is invoked by createSingleton only. (flag is just for |
| 328 | * avoiding the conflict with the public constructors. |
| 329 | */ |
| 330 | private Locale(String language, String country, boolean flag) { |
| 331 | this.language = language; |
| 332 | this.country = country; |
| 333 | this.variant = ""; |
| 334 | } |
| 335 | |
| 336 | /** |
| 337 | * Creates a <code>Locale</code> instance with the given |
| 338 | * <code>language</code> and <code>counry</code> and puts the |
| 339 | * instance under the given <code>key</code> in the cache. This |
| 340 | * method must be called only when initializing the Locale |
| 341 | * constants. |
| 342 | */ |
| 343 | private static Locale createSingleton(String key, String language, String country) { |
| 344 | Locale locale = new Locale(language, country, false); |
| 345 | cache.put(key, locale); |
| 346 | return locale; |
| 347 | } |
| 348 | |
| 349 | /** |
| 350 | * Returns a <code>Locale</code> constructed from the given |
| 351 | * <code>language</code>, <code>country</code> and |
| 352 | * <code>variant</code>. If the same <code>Locale</code> instance |
| 353 | * is available in the cache, then that instance is |
| 354 | * returned. Otherwise, a new <code>Locale</code> instance is |
| 355 | * created and cached. |
| 356 | * |
| 357 | * @param language lowercase two-letter ISO-639 code. |
| 358 | * @param country uppercase two-letter ISO-3166 code. |
| 359 | * @param variant vendor and browser specific code. See class description. |
| 360 | * @return the <code>Locale</code> instance requested |
| 361 | * @exception NullPointerException if any argument is null. |
| 362 | */ |
| 363 | static Locale getInstance(String language, String country, String variant) { |
| 364 | if (language== null || country == null || variant == null) { |
| 365 | throw new NullPointerException(); |
| 366 | } |
| 367 | |
| 368 | StringBuilder sb = new StringBuilder(); |
| 369 | sb.append(language).append('_').append(country).append('_').append(variant); |
| 370 | String key = sb.toString(); |
| 371 | Locale locale = cache.get(key); |
| 372 | if (locale == null) { |
| 373 | locale = new Locale(language, country, variant); |
| 374 | Locale l = cache.putIfAbsent(key, locale); |
| 375 | if (l != null) { |
| 376 | locale = l; |
| 377 | } |
| 378 | } |
| 379 | return locale; |
| 380 | } |
| 381 | |
| 382 | /** |
| 383 | * Gets the current value of the default locale for this instance |
| 384 | * of the Java Virtual Machine. |
| 385 | * <p> |
| 386 | * The Java Virtual Machine sets the default locale during startup |
| 387 | * based on the host environment. It is used by many locale-sensitive |
| 388 | * methods if no locale is explicitly specified. |
| 389 | * It can be changed using the |
| 390 | * {@link #setDefault(java.util.Locale) setDefault} method. |
| 391 | * |
| 392 | * @return the default locale for this instance of the Java Virtual Machine |
| 393 | */ |
| 394 | public static Locale getDefault() { |
| 395 | // do not synchronize this method - see 4071298 |
| 396 | // it's OK if more than one default locale happens to be created |
| 397 | if (defaultLocale == null) { |
| 398 | String language, region, country, variant; |
| 399 | language = AccessController.doPrivileged( |
| 400 | new GetPropertyAction("user.language", "en")); |
| 401 | // for compatibility, check for old user.region property |
| 402 | region = AccessController.doPrivileged( |
| 403 | new GetPropertyAction("user.region")); |
| 404 | if (region != null) { |
| 405 | // region can be of form country, country_variant, or _variant |
| 406 | int i = region.indexOf('_'); |
| 407 | if (i >= 0) { |
| 408 | country = region.substring(0, i); |
| 409 | variant = region.substring(i + 1); |
| 410 | } else { |
| 411 | country = region; |
| 412 | variant = ""; |
| 413 | } |
| 414 | } else { |
| 415 | country = AccessController.doPrivileged( |
| 416 | new GetPropertyAction("user.country", "")); |
| 417 | variant = AccessController.doPrivileged( |
| 418 | new GetPropertyAction("user.variant", "")); |
| 419 | } |
| 420 | defaultLocale = getInstance(language, country, variant); |
| 421 | } |
| 422 | return defaultLocale; |
| 423 | } |
| 424 | |
| 425 | /** |
| 426 | * Sets the default locale for this instance of the Java Virtual Machine. |
| 427 | * This does not affect the host locale. |
| 428 | * <p> |
| 429 | * If there is a security manager, its <code>checkPermission</code> |
| 430 | * method is called with a <code>PropertyPermission("user.language", "write")</code> |
| 431 | * permission before the default locale is changed. |
| 432 | * <p> |
| 433 | * The Java Virtual Machine sets the default locale during startup |
| 434 | * based on the host environment. It is used by many locale-sensitive |
| 435 | * methods if no locale is explicitly specified. |
| 436 | * <p> |
| 437 | * Since changing the default locale may affect many different areas |
| 438 | * of functionality, this method should only be used if the caller |
| 439 | * is prepared to reinitialize locale-sensitive code running |
| 440 | * within the same Java Virtual Machine. |
| 441 | * |
| 442 | * @throws SecurityException |
| 443 | * if a security manager exists and its |
| 444 | * <code>checkPermission</code> method doesn't allow the operation. |
| 445 | * @throws NullPointerException if <code>newLocale</code> is null |
| 446 | * @param newLocale the new default locale |
| 447 | * @see SecurityManager#checkPermission |
| 448 | * @see java.util.PropertyPermission |
| 449 | */ |
| 450 | public static synchronized void setDefault(Locale newLocale) { |
| 451 | if (newLocale == null) |
| 452 | throw new NullPointerException("Can't set default locale to NULL"); |
| 453 | |
| 454 | SecurityManager sm = System.getSecurityManager(); |
| 455 | if (sm != null) sm.checkPermission(new PropertyPermission |
| 456 | ("user.language", "write")); |
| 457 | defaultLocale = newLocale; |
| 458 | } |
| 459 | |
| 460 | /** |
| 461 | * Returns an array of all installed locales. |
| 462 | * The returned array represents the union of locales supported |
| 463 | * by the Java runtime environment and by installed |
| 464 | * {@link java.util.spi.LocaleServiceProvider LocaleServiceProvider} |
| 465 | * implementations. It must contain at least a <code>Locale</code> |
| 466 | * instance equal to {@link java.util.Locale#US Locale.US}. |
| 467 | * |
| 468 | * @return An array of installed locales. |
| 469 | */ |
| 470 | public static Locale[] getAvailableLocales() { |
| 471 | return LocaleServiceProviderPool.getAllAvailableLocales(); |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * Returns a list of all 2-letter country codes defined in ISO 3166. |
| 476 | * Can be used to create Locales. |
| 477 | */ |
| 478 | public static String[] getISOCountries() { |
| 479 | if (isoCountries == null) { |
| 480 | isoCountries = getISO2Table(LocaleISOData.isoCountryTable); |
| 481 | } |
| 482 | String[] result = new String[isoCountries.length]; |
| 483 | System.arraycopy(isoCountries, 0, result, 0, isoCountries.length); |
| 484 | return result; |
| 485 | } |
| 486 | |
| 487 | /** |
| 488 | * Returns a list of all 2-letter language codes defined in ISO 639. |
| 489 | * Can be used to create Locales. |
| 490 | * [NOTE: ISO 639 is not a stable standard-- some languages' codes have changed. |
| 491 | * The list this function returns includes both the new and the old codes for the |
| 492 | * languages whose codes have changed.] |
| 493 | */ |
| 494 | public static String[] getISOLanguages() { |
| 495 | if (isoLanguages == null) { |
| 496 | isoLanguages = getISO2Table(LocaleISOData.isoLanguageTable); |
| 497 | } |
| 498 | String[] result = new String[isoLanguages.length]; |
| 499 | System.arraycopy(isoLanguages, 0, result, 0, isoLanguages.length); |
| 500 | return result; |
| 501 | } |
| 502 | |
| 503 | private static final String[] getISO2Table(String table) { |
| 504 | int len = table.length() / 5; |
| 505 | String[] isoTable = new String[len]; |
| 506 | for (int i = 0, j = 0; i < len; i++, j += 5) { |
| 507 | isoTable[i] = table.substring(j, j + 2); |
| 508 | } |
| 509 | return isoTable; |
| 510 | } |
| 511 | |
| 512 | /** |
| 513 | * Returns the language code for this locale, which will either be the empty string |
| 514 | * or a lowercase ISO 639 code. |
| 515 | * <p>NOTE: ISO 639 is not a stable standard-- some languages' codes have changed. |
| 516 | * Locale's constructor recognizes both the new and the old codes for the languages |
| 517 | * whose codes have changed, but this function always returns the old code. If you |
| 518 | * want to check for a specific language whose code has changed, don't do <pre> |
| 519 | * if (locale.getLanguage().equals("he")) |
| 520 | * ... |
| 521 | * </pre>Instead, do<pre> |
| 522 | * if (locale.getLanguage().equals(new Locale("he", "", "").getLanguage())) |
| 523 | * ...</pre> |
| 524 | * @see #getDisplayLanguage |
| 525 | */ |
| 526 | public String getLanguage() { |
| 527 | return language; |
| 528 | } |
| 529 | |
| 530 | /** |
| 531 | * Returns the country/region code for this locale, which will |
| 532 | * either be the empty string or an uppercase ISO 3166 2-letter code. |
| 533 | * @see #getDisplayCountry |
| 534 | */ |
| 535 | public String getCountry() { |
| 536 | return country; |
| 537 | } |
| 538 | |
| 539 | /** |
| 540 | * Returns the variant code for this locale. |
| 541 | * @see #getDisplayVariant |
| 542 | */ |
| 543 | public String getVariant() { |
| 544 | return variant; |
| 545 | } |
| 546 | |
| 547 | /** |
| 548 | * Getter for the programmatic name of the entire locale, |
| 549 | * with the language, country and variant separated by underbars. |
| 550 | * Language is always lower case, and country is always upper case. |
| 551 | * If the language is missing, the string will begin with an underbar. |
| 552 | * If both the language and country fields are missing, this function |
| 553 | * will return the empty string, even if the variant field is filled in |
| 554 | * (you can't have a locale with just a variant-- the variant must accompany |
| 555 | * a valid language or country code). |
| 556 | * Examples: "en", "de_DE", "_GB", "en_US_WIN", "de__POSIX", "fr__MAC" |
| 557 | * @see #getDisplayName |
| 558 | */ |
| 559 | public final String toString() { |
| 560 | boolean l = language.length() != 0; |
| 561 | boolean c = country.length() != 0; |
| 562 | boolean v = variant.length() != 0; |
| 563 | StringBuilder result = new StringBuilder(language); |
| 564 | if (c||(l&&v)) { |
| 565 | result.append('_').append(country); // This may just append '_' |
| 566 | } |
| 567 | if (v&&(l||c)) { |
| 568 | result.append('_').append(variant); |
| 569 | } |
| 570 | return result.toString(); |
| 571 | } |
| 572 | |
| 573 | /** |
| 574 | * Returns a three-letter abbreviation for this locale's language. If the locale |
| 575 | * doesn't specify a language, this will be the empty string. Otherwise, this will |
| 576 | * be a lowercase ISO 639-2/T language code. |
| 577 | * The ISO 639-2 language codes can be found on-line at |
| 578 | * <a href="http://www.loc.gov/standards/iso639-2/englangn.html"> |
| 579 | * <code>http://www.loc.gov/standards/iso639-2/englangn.html</code>.</a> |
| 580 | * @exception MissingResourceException Throws MissingResourceException if the |
| 581 | * three-letter language abbreviation is not available for this locale. |
| 582 | */ |
| 583 | public String getISO3Language() throws MissingResourceException { |
| 584 | String language3 = getISO3Code(language, LocaleISOData.isoLanguageTable); |
| 585 | if (language3 == null) { |
| 586 | throw new MissingResourceException("Couldn't find 3-letter language code for " |
| 587 | + language, "FormatData_" + toString(), "ShortLanguage"); |
| 588 | } |
| 589 | return language3; |
| 590 | } |
| 591 | |
| 592 | /** |
| 593 | * Returns a three-letter abbreviation for this locale's country. If the locale |
| 594 | * doesn't specify a country, this will be the empty string. Otherwise, this will |
| 595 | * be an uppercase ISO 3166 3-letter country code. |
| 596 | * The ISO 3166-2 country codes can be found on-line at |
| 597 | * <a href="http://www.davros.org/misc/iso3166.txt"> |
| 598 | * <code>http://www.davros.org/misc/iso3166.txt</code>.</a> |
| 599 | * @exception MissingResourceException Throws MissingResourceException if the |
| 600 | * three-letter country abbreviation is not available for this locale. |
| 601 | */ |
| 602 | public String getISO3Country() throws MissingResourceException { |
| 603 | String country3 = getISO3Code(country, LocaleISOData.isoCountryTable); |
| 604 | if (country3 == null) { |
| 605 | throw new MissingResourceException("Couldn't find 3-letter country code for " |
| 606 | + country, "FormatData_" + toString(), "ShortCountry"); |
| 607 | } |
| 608 | return country3; |
| 609 | } |
| 610 | |
| 611 | private static final String getISO3Code(String iso2Code, String table) { |
| 612 | int codeLength = iso2Code.length(); |
| 613 | if (codeLength == 0) { |
| 614 | return ""; |
| 615 | } |
| 616 | |
| 617 | int tableLength = table.length(); |
| 618 | int index = tableLength; |
| 619 | if (codeLength == 2) { |
| 620 | char c1 = iso2Code.charAt(0); |
| 621 | char c2 = iso2Code.charAt(1); |
| 622 | for (index = 0; index < tableLength; index += 5) { |
| 623 | if (table.charAt(index) == c1 |
| 624 | && table.charAt(index + 1) == c2) { |
| 625 | break; |
| 626 | } |
| 627 | } |
| 628 | } |
| 629 | return index < tableLength ? table.substring(index + 2, index + 5) : null; |
| 630 | } |
| 631 | |
| 632 | /** |
| 633 | * Returns a name for the locale's language that is appropriate for display to the |
| 634 | * user. |
| 635 | * If possible, the name returned will be localized for the default locale. |
| 636 | * For example, if the locale is fr_FR and the default locale |
| 637 | * is en_US, getDisplayLanguage() will return "French"; if the locale is en_US and |
| 638 | * the default locale is fr_FR, getDisplayLanguage() will return "anglais". |
| 639 | * If the name returned cannot be localized for the default locale, |
| 640 | * (say, we don't have a Japanese name for Croatian), |
| 641 | * this function falls back on the English name, and uses the ISO code as a last-resort |
| 642 | * value. If the locale doesn't specify a language, this function returns the empty string. |
| 643 | */ |
| 644 | public final String getDisplayLanguage() { |
| 645 | return getDisplayLanguage(getDefault()); |
| 646 | } |
| 647 | |
| 648 | /** |
| 649 | * Returns a name for the locale's language that is appropriate for display to the |
| 650 | * user. |
| 651 | * If possible, the name returned will be localized according to inLocale. |
| 652 | * For example, if the locale is fr_FR and inLocale |
| 653 | * is en_US, getDisplayLanguage() will return "French"; if the locale is en_US and |
| 654 | * inLocale is fr_FR, getDisplayLanguage() will return "anglais". |
| 655 | * If the name returned cannot be localized according to inLocale, |
| 656 | * (say, we don't have a Japanese name for Croatian), |
| 657 | * this function falls back on the English name, and finally |
| 658 | * on the ISO code as a last-resort value. If the locale doesn't specify a language, |
| 659 | * this function returns the empty string. |
| 660 | * |
| 661 | * @exception NullPointerException if <code>inLocale</code> is <code>null</code> |
| 662 | */ |
| 663 | public String getDisplayLanguage(Locale inLocale) { |
| 664 | return getDisplayString(language, inLocale, DISPLAY_LANGUAGE); |
| 665 | } |
| 666 | |
| 667 | /** |
| 668 | * Returns a name for the locale's country that is appropriate for display to the |
| 669 | * user. |
| 670 | * If possible, the name returned will be localized for the default locale. |
| 671 | * For example, if the locale is fr_FR and the default locale |
| 672 | * is en_US, getDisplayCountry() will return "France"; if the locale is en_US and |
| 673 | * the default locale is fr_FR, getDisplayCountry() will return "Etats-Unis". |
| 674 | * If the name returned cannot be localized for the default locale, |
| 675 | * (say, we don't have a Japanese name for Croatia), |
| 676 | * this function falls back on the English name, and uses the ISO code as a last-resort |
| 677 | * value. If the locale doesn't specify a country, this function returns the empty string. |
| 678 | */ |
| 679 | public final String getDisplayCountry() { |
| 680 | return getDisplayCountry(getDefault()); |
| 681 | } |
| 682 | |
| 683 | /** |
| 684 | * Returns a name for the locale's country that is appropriate for display to the |
| 685 | * user. |
| 686 | * If possible, the name returned will be localized according to inLocale. |
| 687 | * For example, if the locale is fr_FR and inLocale |
| 688 | * is en_US, getDisplayCountry() will return "France"; if the locale is en_US and |
| 689 | * inLocale is fr_FR, getDisplayCountry() will return "Etats-Unis". |
| 690 | * If the name returned cannot be localized according to inLocale. |
| 691 | * (say, we don't have a Japanese name for Croatia), |
| 692 | * this function falls back on the English name, and finally |
| 693 | * on the ISO code as a last-resort value. If the locale doesn't specify a country, |
| 694 | * this function returns the empty string. |
| 695 | * |
| 696 | * @exception NullPointerException if <code>inLocale</code> is <code>null</code> |
| 697 | */ |
| 698 | public String getDisplayCountry(Locale inLocale) { |
| 699 | return getDisplayString(country, inLocale, DISPLAY_COUNTRY); |
| 700 | } |
| 701 | |
| 702 | private String getDisplayString(String code, Locale inLocale, int type) { |
| 703 | if (code.length() == 0) { |
| 704 | return ""; |
| 705 | } |
| 706 | |
| 707 | if (inLocale == null) { |
| 708 | throw new NullPointerException(); |
| 709 | } |
| 710 | |
| 711 | try { |
| 712 | OpenListResourceBundle bundle = LocaleData.getLocaleNames(inLocale); |
| 713 | String key = (type == DISPLAY_VARIANT ? "%%"+code : code); |
| 714 | String result = null; |
| 715 | |
| 716 | // Check whether a provider can provide an implementation that's closer |
| 717 | // to the requested locale than what the Java runtime itself can provide. |
| 718 | LocaleServiceProviderPool pool = |
| 719 | LocaleServiceProviderPool.getPool(LocaleNameProvider.class); |
| 720 | if (pool.hasProviders()) { |
| 721 | result = pool.getLocalizedObject( |
| 722 | LocaleNameGetter.INSTANCE, |
| 723 | inLocale, bundle, key, |
| 724 | type, code); |
| 725 | } |
| 726 | |
| 727 | if (result == null) { |
| 728 | result = bundle.getString(key); |
| 729 | } |
| 730 | |
| 731 | if (result != null) { |
| 732 | return result; |
| 733 | } |
| 734 | } |
| 735 | catch (Exception e) { |
| 736 | // just fall through |
| 737 | } |
| 738 | return code; |
| 739 | } |
| 740 | |
| 741 | /** |
| 742 | * Returns a name for the locale's variant code that is appropriate for display to the |
| 743 | * user. If possible, the name will be localized for the default locale. If the locale |
| 744 | * doesn't specify a variant code, this function returns the empty string. |
| 745 | */ |
| 746 | public final String getDisplayVariant() { |
| 747 | return getDisplayVariant(getDefault()); |
| 748 | } |
| 749 | |
| 750 | /** |
| 751 | * Returns a name for the locale's variant code that is appropriate for display to the |
| 752 | * user. If possible, the name will be localized for inLocale. If the locale |
| 753 | * doesn't specify a variant code, this function returns the empty string. |
| 754 | * |
| 755 | * @exception NullPointerException if <code>inLocale</code> is <code>null</code> |
| 756 | */ |
| 757 | public String getDisplayVariant(Locale inLocale) { |
| 758 | if (variant.length() == 0) |
| 759 | return ""; |
| 760 | |
| 761 | OpenListResourceBundle bundle = LocaleData.getLocaleNames(inLocale); |
| 762 | |
| 763 | String names[] = getDisplayVariantArray(bundle, inLocale); |
| 764 | |
| 765 | // Get the localized patterns for formatting a list, and use |
| 766 | // them to format the list. |
| 767 | String listPattern = null; |
| 768 | String listCompositionPattern = null; |
| 769 | try { |
| 770 | listPattern = bundle.getString("ListPattern"); |
| 771 | listCompositionPattern = bundle.getString("ListCompositionPattern"); |
| 772 | } catch (MissingResourceException e) { |
| 773 | } |
| 774 | return formatList(names, listPattern, listCompositionPattern); |
| 775 | } |
| 776 | |
| 777 | /** |
| 778 | * Returns a name for the locale that is appropriate for display to the |
| 779 | * user. This will be the values returned by getDisplayLanguage(), getDisplayCountry(), |
| 780 | * and getDisplayVariant() assembled into a single string. The display name will have |
| 781 | * one of the following forms:<p><blockquote> |
| 782 | * language (country, variant)<p> |
| 783 | * language (country)<p> |
| 784 | * language (variant)<p> |
| 785 | * country (variant)<p> |
| 786 | * language<p> |
| 787 | * country<p> |
| 788 | * variant<p></blockquote> |
| 789 | * depending on which fields are specified in the locale. If the language, country, |
| 790 | * and variant fields are all empty, this function returns the empty string. |
| 791 | */ |
| 792 | public final String getDisplayName() { |
| 793 | return getDisplayName(getDefault()); |
| 794 | } |
| 795 | |
| 796 | /** |
| 797 | * Returns a name for the locale that is appropriate for display to the |
| 798 | * user. This will be the values returned by getDisplayLanguage(), getDisplayCountry(), |
| 799 | * and getDisplayVariant() assembled into a single string. The display name will have |
| 800 | * one of the following forms:<p><blockquote> |
| 801 | * language (country, variant)<p> |
| 802 | * language (country)<p> |
| 803 | * language (variant)<p> |
| 804 | * country (variant)<p> |
| 805 | * language<p> |
| 806 | * country<p> |
| 807 | * variant<p></blockquote> |
| 808 | * depending on which fields are specified in the locale. If the language, country, |
| 809 | * and variant fields are all empty, this function returns the empty string. |
| 810 | * |
| 811 | * @exception NullPointerException if <code>inLocale</code> is <code>null</code> |
| 812 | */ |
| 813 | public String getDisplayName(Locale inLocale) { |
| 814 | OpenListResourceBundle bundle = LocaleData.getLocaleNames(inLocale); |
| 815 | |
| 816 | String languageName = getDisplayLanguage(inLocale); |
| 817 | String countryName = getDisplayCountry(inLocale); |
| 818 | String[] variantNames = getDisplayVariantArray(bundle, inLocale); |
| 819 | |
| 820 | // Get the localized patterns for formatting a display name. |
| 821 | String displayNamePattern = null; |
| 822 | String listPattern = null; |
| 823 | String listCompositionPattern = null; |
| 824 | try { |
| 825 | displayNamePattern = bundle.getString("DisplayNamePattern"); |
| 826 | listPattern = bundle.getString("ListPattern"); |
| 827 | listCompositionPattern = bundle.getString("ListCompositionPattern"); |
| 828 | } catch (MissingResourceException e) { |
| 829 | } |
| 830 | |
| 831 | // The display name consists of a main name, followed by qualifiers. |
| 832 | // Typically, the format is "MainName (Qualifier, Qualifier)" but this |
| 833 | // depends on what pattern is stored in the display locale. |
| 834 | String mainName = null; |
| 835 | String[] qualifierNames = null; |
| 836 | |
| 837 | // The main name is the language, or if there is no language, the country. |
| 838 | // If there is neither language nor country (an anomalous situation) then |
| 839 | // the display name is simply the variant's display name. |
| 840 | if (languageName.length() != 0) { |
| 841 | mainName = languageName; |
| 842 | if (countryName.length() != 0) { |
| 843 | qualifierNames = new String[variantNames.length + 1]; |
| 844 | System.arraycopy(variantNames, 0, qualifierNames, 1, variantNames.length); |
| 845 | qualifierNames[0] = countryName; |
| 846 | } |
| 847 | else qualifierNames = variantNames; |
| 848 | } |
| 849 | else if (countryName.length() != 0) { |
| 850 | mainName = countryName; |
| 851 | qualifierNames = variantNames; |
| 852 | } |
| 853 | else { |
| 854 | return formatList(variantNames, listPattern, listCompositionPattern); |
| 855 | } |
| 856 | |
| 857 | // Create an array whose first element is the number of remaining |
| 858 | // elements. This serves as a selector into a ChoiceFormat pattern from |
| 859 | // the resource. The second and third elements are the main name and |
| 860 | // the qualifier; if there are no qualifiers, the third element is |
| 861 | // unused by the format pattern. |
| 862 | Object[] displayNames = { |
| 863 | new Integer(qualifierNames.length != 0 ? 2 : 1), |
| 864 | mainName, |
| 865 | // We could also just call formatList() and have it handle the empty |
| 866 | // list case, but this is more efficient, and we want it to be |
| 867 | // efficient since all the language-only locales will not have any |
| 868 | // qualifiers. |
| 869 | qualifierNames.length != 0 ? formatList(qualifierNames, listPattern, listCompositionPattern) : null |
| 870 | }; |
| 871 | |
| 872 | if (displayNamePattern != null) { |
| 873 | return new MessageFormat(displayNamePattern).format(displayNames); |
| 874 | } |
| 875 | else { |
| 876 | // If we cannot get the message format pattern, then we use a simple |
| 877 | // hard-coded pattern. This should not occur in practice unless the |
| 878 | // installation is missing some core files (FormatData etc.). |
| 879 | StringBuilder result = new StringBuilder(); |
| 880 | result.append((String)displayNames[1]); |
| 881 | if (displayNames.length > 2) { |
| 882 | result.append(" ("); |
| 883 | result.append((String)displayNames[2]); |
| 884 | result.append(')'); |
| 885 | } |
| 886 | return result.toString(); |
| 887 | } |
| 888 | } |
| 889 | |
| 890 | /** |
| 891 | * Overrides Cloneable |
| 892 | */ |
| 893 | public Object clone() |
| 894 | { |
| 895 | try { |
| 896 | Locale that = (Locale)super.clone(); |
| 897 | return that; |
| 898 | } catch (CloneNotSupportedException e) { |
| 899 | throw new InternalError(); |
| 900 | } |
| 901 | } |
| 902 | |
| 903 | /** |
| 904 | * Override hashCode. |
| 905 | * Since Locales are often used in hashtables, caches the value |
| 906 | * for speed. |
| 907 | */ |
| 908 | public int hashCode() { |
| 909 | int hc = hashCodeValue; |
| 910 | if (hc == 0) { |
| 911 | hc = (language.hashCode() << 8) ^ country.hashCode() ^ (variant.hashCode() << 4); |
| 912 | hashCodeValue = hc; |
| 913 | } |
| 914 | return hc; |
| 915 | } |
| 916 | |
| 917 | // Overrides |
| 918 | |
| 919 | /** |
| 920 | * Returns true if this Locale is equal to another object. A Locale is |
| 921 | * deemed equal to another Locale with identical language, country, |
| 922 | * and variant, and unequal to all other objects. |
| 923 | * |
| 924 | * @return true if this Locale is equal to the specified object. |
| 925 | */ |
| 926 | |
| 927 | public boolean equals(Object obj) { |
| 928 | if (this == obj) // quick check |
| 929 | return true; |
| 930 | if (!(obj instanceof Locale)) |
| 931 | return false; |
| 932 | Locale other = (Locale) obj; |
| 933 | return language == other.language |
| 934 | && country == other.country |
| 935 | && variant == other.variant; |
| 936 | } |
| 937 | |
| 938 | // ================= privates ===================================== |
| 939 | |
| 940 | // XXX instance and class variables. For now keep these separate, since it is |
| 941 | // faster to match. Later, make into single string. |
| 942 | |
| 943 | /** |
| 944 | * @serial |
| 945 | * @see #getLanguage |
| 946 | */ |
| 947 | private final String language; |
| 948 | |
| 949 | /** |
| 950 | * @serial |
| 951 | * @see #getCountry |
| 952 | */ |
| 953 | private final String country; |
| 954 | |
| 955 | /** |
| 956 | * @serial |
| 957 | * @see #getVariant |
| 958 | */ |
| 959 | private final String variant; |
| 960 | |
| 961 | /** |
| 962 | * Placeholder for the object's hash code. Always -1. |
| 963 | * @serial |
| 964 | */ |
| 965 | private volatile int hashcode = -1; // lazy evaluate |
| 966 | |
| 967 | /** |
| 968 | * Calculated hashcode to fix 4518797. |
| 969 | */ |
| 970 | private transient volatile int hashCodeValue = 0; |
| 971 | |
| 972 | private static Locale defaultLocale = null; |
| 973 | |
| 974 | /** |
| 975 | * Return an array of the display names of the variant. |
| 976 | * @param bundle the ResourceBundle to use to get the display names |
| 977 | * @return an array of display names, possible of zero length. |
| 978 | */ |
| 979 | private String[] getDisplayVariantArray(OpenListResourceBundle bundle, Locale inLocale) { |
| 980 | // Split the variant name into tokens separated by '_'. |
| 981 | StringTokenizer tokenizer = new StringTokenizer(variant, "_"); |
| 982 | String[] names = new String[tokenizer.countTokens()]; |
| 983 | |
| 984 | // For each variant token, lookup the display name. If |
| 985 | // not found, use the variant name itself. |
| 986 | for (int i=0; i<names.length; ++i) { |
| 987 | names[i] = getDisplayString(tokenizer.nextToken(), |
| 988 | inLocale, DISPLAY_VARIANT); |
| 989 | } |
| 990 | |
| 991 | return names; |
| 992 | } |
| 993 | |
| 994 | /** |
| 995 | * Format a list using given pattern strings. |
| 996 | * If either of the patterns is null, then a the list is |
| 997 | * formatted by concatenation with the delimiter ','. |
| 998 | * @param stringList the list of strings to be formatted. |
| 999 | * @param listPattern should create a MessageFormat taking 0-3 arguments |
| 1000 | * and formatting them into a list. |
| 1001 | * @param listCompositionPattern should take 2 arguments |
| 1002 | * and is used by composeList. |
| 1003 | * @return a string representing the list. |
| 1004 | */ |
| 1005 | private static String formatList(String[] stringList, String listPattern, String listCompositionPattern) { |
| 1006 | // If we have no list patterns, compose the list in a simple, |
| 1007 | // non-localized way. |
| 1008 | if (listPattern == null || listCompositionPattern == null) { |
| 1009 | StringBuffer result = new StringBuffer(); |
| 1010 | for (int i=0; i<stringList.length; ++i) { |
| 1011 | if (i>0) result.append(','); |
| 1012 | result.append(stringList[i]); |
| 1013 | } |
| 1014 | return result.toString(); |
| 1015 | } |
| 1016 | |
| 1017 | // Compose the list down to three elements if necessary |
| 1018 | if (stringList.length > 3) { |
| 1019 | MessageFormat format = new MessageFormat(listCompositionPattern); |
| 1020 | stringList = composeList(format, stringList); |
| 1021 | } |
| 1022 | |
| 1023 | // Rebuild the argument list with the list length as the first element |
| 1024 | Object[] args = new Object[stringList.length + 1]; |
| 1025 | System.arraycopy(stringList, 0, args, 1, stringList.length); |
| 1026 | args[0] = new Integer(stringList.length); |
| 1027 | |
| 1028 | // Format it using the pattern in the resource |
| 1029 | MessageFormat format = new MessageFormat(listPattern); |
| 1030 | return format.format(args); |
| 1031 | } |
| 1032 | |
| 1033 | /** |
| 1034 | * Given a list of strings, return a list shortened to three elements. |
| 1035 | * Shorten it by applying the given format to the first two elements |
| 1036 | * recursively. |
| 1037 | * @param format a format which takes two arguments |
| 1038 | * @param list a list of strings |
| 1039 | * @return if the list is three elements or shorter, the same list; |
| 1040 | * otherwise, a new list of three elements. |
| 1041 | */ |
| 1042 | private static String[] composeList(MessageFormat format, String[] list) { |
| 1043 | if (list.length <= 3) return list; |
| 1044 | |
| 1045 | // Use the given format to compose the first two elements into one |
| 1046 | String[] listItems = { list[0], list[1] }; |
| 1047 | String newItem = format.format(listItems); |
| 1048 | |
| 1049 | // Form a new list one element shorter |
| 1050 | String[] newList = new String[list.length-1]; |
| 1051 | System.arraycopy(list, 2, newList, 1, newList.length-1); |
| 1052 | newList[0] = newItem; |
| 1053 | |
| 1054 | // Recurse |
| 1055 | return composeList(format, newList); |
| 1056 | } |
| 1057 | |
| 1058 | /** |
| 1059 | * Replace the deserialized Locale object with a newly |
| 1060 | * created object. Newer language codes are replaced with older ISO |
| 1061 | * codes. The country and variant codes are replaced with internalized |
| 1062 | * String copies. |
| 1063 | */ |
| 1064 | private Object readResolve() throws java.io.ObjectStreamException { |
| 1065 | return getInstance(language, country, variant); |
| 1066 | } |
| 1067 | |
| 1068 | private static volatile String[] isoLanguages = null; |
| 1069 | |
| 1070 | private static volatile String[] isoCountries = null; |
| 1071 | |
| 1072 | /* |
| 1073 | * Locale needs its own, locale insensitive version of toLowerCase to |
| 1074 | * avoid circularity problems between Locale and String. |
| 1075 | * The most straightforward algorithm is used. Look at optimizations later. |
| 1076 | */ |
| 1077 | private String toLowerCase(String str) { |
| 1078 | char[] buf = new char[str.length()]; |
| 1079 | for (int i = 0; i < buf.length; i++) { |
| 1080 | buf[i] = Character.toLowerCase(str.charAt(i)); |
| 1081 | } |
| 1082 | return new String( buf ); |
| 1083 | } |
| 1084 | |
| 1085 | /* |
| 1086 | * Locale needs its own, locale insensitive version of toUpperCase to |
| 1087 | * avoid circularity problems between Locale and String. |
| 1088 | * The most straightforward algorithm is used. Look at optimizations later. |
| 1089 | */ |
| 1090 | private String toUpperCase(String str) { |
| 1091 | char[] buf = new char[str.length()]; |
| 1092 | for (int i = 0; i < buf.length; i++) { |
| 1093 | buf[i] = Character.toUpperCase(str.charAt(i)); |
| 1094 | } |
| 1095 | return new String( buf ); |
| 1096 | } |
| 1097 | |
| 1098 | private String convertOldISOCodes(String language) { |
| 1099 | // we accept both the old and the new ISO codes for the languages whose ISO |
| 1100 | // codes have changed, but we always store the OLD code, for backward compatibility |
| 1101 | language = toLowerCase(language).intern(); |
| 1102 | if (language == "he") { |
| 1103 | return "iw"; |
| 1104 | } else if (language == "yi") { |
| 1105 | return "ji"; |
| 1106 | } else if (language == "id") { |
| 1107 | return "in"; |
| 1108 | } else { |
| 1109 | return language; |
| 1110 | } |
| 1111 | } |
| 1112 | |
| 1113 | /** |
| 1114 | * Obtains a localized locale names from a LocaleNameProvider |
| 1115 | * implementation. |
| 1116 | */ |
| 1117 | private static class LocaleNameGetter |
| 1118 | implements LocaleServiceProviderPool.LocalizedObjectGetter<LocaleNameProvider, String> { |
| 1119 | private static final LocaleNameGetter INSTANCE = new LocaleNameGetter(); |
| 1120 | |
| 1121 | public String getObject(LocaleNameProvider localeNameProvider, |
| 1122 | Locale locale, |
| 1123 | String key, |
| 1124 | Object... params) { |
| 1125 | assert params.length == 2; |
| 1126 | int type = (Integer)params[0]; |
| 1127 | String code = (String)params[1]; |
| 1128 | |
| 1129 | switch(type) { |
| 1130 | case DISPLAY_LANGUAGE: |
| 1131 | return localeNameProvider.getDisplayLanguage(code, locale); |
| 1132 | case DISPLAY_COUNTRY: |
| 1133 | return localeNameProvider.getDisplayCountry(code, locale); |
| 1134 | case DISPLAY_VARIANT: |
| 1135 | return localeNameProvider.getDisplayVariant(code, locale); |
| 1136 | default: |
| 1137 | assert false; // shouldn't happen |
| 1138 | } |
| 1139 | |
| 1140 | return null; |
| 1141 | } |
| 1142 | } |
| 1143 | } |