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Diffstat (limited to 'libjava/classpath/java/util/Locale.java')
-rw-r--r-- | libjava/classpath/java/util/Locale.java | 1029 |
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diff --git a/libjava/classpath/java/util/Locale.java b/libjava/classpath/java/util/Locale.java deleted file mode 100644 index ef11173..0000000 --- a/libjava/classpath/java/util/Locale.java +++ /dev/null @@ -1,1029 +0,0 @@ -/* Locale.java -- i18n locales - Copyright (C) 1998, 1999, 2001, 2002, 2005, 2006 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package java.util; - -import gnu.classpath.SystemProperties; - -import gnu.java.lang.CPStringBuilder; - -import gnu.java.locale.LocaleHelper; - -import java.io.IOException; -import java.io.ObjectInputStream; -import java.io.ObjectOutputStream; -import java.io.Serializable; - -import java.util.spi.LocaleNameProvider; - -/** - * Locales represent a specific country and culture. Classes which can be - * passed a Locale object tailor their information for a given locale. For - * instance, currency number formatting is handled differently for the USA - * and France. - * - * <p>Locales are made up of a language code, a country code, and an optional - * set of variant strings. Language codes are represented by - * <a href="http://www.ics.uci.edu/pub/ietf/http/related/iso639.txt"> - * ISO 639:1988</a> w/ additions from ISO 639/RA Newsletter No. 1/1989 - * and a decision of the Advisory Committee of ISO/TC39 on August 8, 1997. - * - * <p>Country codes are represented by - * <a href="http://www.chemie.fu-berlin.de/diverse/doc/ISO_3166.html"> - * ISO 3166</a>. Variant strings are vendor and browser specific. Standard - * variant strings include "POSIX" for POSIX, "WIN" for MS-Windows, and - * "MAC" for Macintosh. When there is more than one variant string, they must - * be separated by an underscore (U+005F). - * - * <p>The default locale is determined by the values of the system properties - * user.language, user.country (or user.region), and user.variant, defaulting - * to "en_US". Note that the locale does NOT contain the conversion and - * formatting capabilities (for that, use ResourceBundle and java.text). - * Rather, it is an immutable tag object for identifying a given locale, which - * is referenced by these other classes when they must make locale-dependent - * decisions. - * - * @see ResourceBundle - * @see java.text.Format - * @see java.text.NumberFormat - * @see java.text.Collator - * @author Jochen Hoenicke - * @author Paul Fisher - * @author Eric Blake (ebb9@email.byu.edu) - * @author Andrew John Hughes (gnu_andrew@member.fsf.org) - * @since 1.1 - * @status updated to 1.4 - */ -public final class Locale implements Serializable, Cloneable -{ - /** Locale which represents the English language. */ - public static final Locale ENGLISH = getLocale("en"); - - /** Locale which represents the French language. */ - public static final Locale FRENCH = getLocale("fr"); - - /** Locale which represents the German language. */ - public static final Locale GERMAN = getLocale("de"); - - /** Locale which represents the Italian language. */ - public static final Locale ITALIAN = getLocale("it"); - - /** Locale which represents the Japanese language. */ - public static final Locale JAPANESE = getLocale("ja"); - - /** Locale which represents the Korean language. */ - public static final Locale KOREAN = getLocale("ko"); - - /** Locale which represents the Chinese language. */ - public static final Locale CHINESE = getLocale("zh"); - - /** Locale which represents the Chinese language as used in China. */ - public static final Locale SIMPLIFIED_CHINESE = getLocale("zh", "CN"); - - /** - * Locale which represents the Chinese language as used in Taiwan. - * Same as TAIWAN Locale. - */ - public static final Locale TRADITIONAL_CHINESE = getLocale("zh", "TW"); - - /** Locale which represents France. */ - public static final Locale FRANCE = getLocale("fr", "FR"); - - /** Locale which represents Germany. */ - public static final Locale GERMANY = getLocale("de", "DE"); - - /** Locale which represents Italy. */ - public static final Locale ITALY = getLocale("it", "IT"); - - /** Locale which represents Japan. */ - public static final Locale JAPAN = getLocale("ja", "JP"); - - /** Locale which represents Korea. */ - public static final Locale KOREA = getLocale("ko", "KR"); - - /** - * Locale which represents China. - * Same as SIMPLIFIED_CHINESE Locale. - */ - public static final Locale CHINA = SIMPLIFIED_CHINESE; - - /** - * Locale which represents the People's Republic of China. - * Same as CHINA Locale. - */ - public static final Locale PRC = CHINA; - - /** - * Locale which represents Taiwan. - * Same as TRADITIONAL_CHINESE Locale. - */ - public static final Locale TAIWAN = TRADITIONAL_CHINESE; - - /** Locale which represents the United Kingdom. */ - public static final Locale UK = getLocale("en", "GB"); - - /** Locale which represents the United States. */ - public static final Locale US = getLocale("en", "US"); - - /** Locale which represents the English speaking portion of Canada. */ - public static final Locale CANADA = getLocale("en", "CA"); - - /** Locale which represents the French speaking portion of Canada. */ - public static final Locale CANADA_FRENCH = getLocale("fr", "CA"); - - /** The root locale, used as the base case in lookups by - * locale-sensitive operations. - */ - public static final Locale ROOT = new Locale("","",""); - - /** - * Compatible with JDK 1.1+. - */ - private static final long serialVersionUID = 9149081749638150636L; - - /** - * The language code, as returned by getLanguage(). - * - * @serial the languange, possibly "" - */ - private final String language; - - /** - * The country code, as returned by getCountry(). - * - * @serial the country, possibly "" - */ - private final String country; - - /** - * The variant code, as returned by getVariant(). - * - * @serial the variant, possibly "" - */ - private final String variant; - - /** - * This is the cached hashcode. When writing to stream, we write -1. - * - * @serial should be -1 in serial streams - */ - private int hashcode; - - /** - * Array storing all available locales. - */ - private static transient Locale[] availableLocales; - - /** - * Locale cache. Only created locale objects are stored. - * Contains all supported locales when getAvailableLocales() - * got called. - */ - private static transient HashMap localeMap; - - /** - * The default locale. Except for during bootstrapping, this should never be - * null. Note the logic in the main constructor, to detect when - * bootstrapping has completed. - */ - private static Locale defaultLocale; - - static { - String language = SystemProperties.getProperty("user.language", "en"); - String country = SystemProperties.getProperty("user.country", "US"); - String region = SystemProperties.getProperty("user.region", null); - String variant = SystemProperties.getProperty("user.variant", ""); - - defaultLocale = getLocale(language, - (region != null) ? region : country, - variant); - } - - /** - * Array storing all the available two-letter ISO639 languages. - */ - private static transient String[] languageCache; - - /** - * Array storing all the available two-letter ISO3166 country codes. - */ - private static transient String[] countryCache; - - /** - * Retrieves the locale with the specified language from the cache. - * - * @param language the language of the locale to retrieve. - * @return the locale. - */ - private static Locale getLocale(String language) - { - return getLocale(language, "", ""); - } - - /** - * Retrieves the locale with the specified language and country - * from the cache. - * - * @param language the language of the locale to retrieve. - * @param country the country of the locale to retrieve. - * @return the locale. - */ - private static Locale getLocale(String language, String country) - { - return getLocale(language, country, ""); - } - - /** - * Retrieves the locale with the specified language, country - * and variant from the cache. - * - * @param language the language of the locale to retrieve. - * @param country the country of the locale to retrieve. - * @param variant the variant of the locale to retrieve. - * @return the locale. - */ - private static Locale getLocale(String language, String country, String variant) - { - if (localeMap == null) - localeMap = new HashMap(256); - - String name = language + "_" + country + "_" + variant; - Locale locale = (Locale) localeMap.get(name); - - if (locale == null) - { - locale = new Locale(language, country, variant); - localeMap.put(name, locale); - } - - return locale; - } - - /** - * Convert new iso639 codes to the old ones. - * - * @param language the language to check - * @return the appropriate code - */ - private String convertLanguage(String language) - { - if (language.equals("")) - return language; - language = language.toLowerCase(); - int index = "he,id,yi".indexOf(language); - if (index != -1) - return "iw,in,ji".substring(index, index + 2); - return language; - } - - /** - * Creates a new locale for the given language and country. - * - * @param language lowercase two-letter ISO-639 A2 language code - * @param country uppercase two-letter ISO-3166 A2 contry code - * @param variant vendor and browser specific - * @throws NullPointerException if any argument is null - */ - public Locale(String language, String country, String variant) - { - // During bootstrap, we already know the strings being passed in are - // the correct capitalization, and not null. We can't call - // String.toUpperCase during this time, since that depends on the - // default locale. - if (defaultLocale != null) - { - language = convertLanguage(language); - country = country.toUpperCase(); - } - this.language = language.intern(); - this.country = country.intern(); - this.variant = variant.intern(); - hashcode = language.hashCode() ^ country.hashCode() ^ variant.hashCode(); - } - - /** - * Creates a new locale for the given language and country. - * - * @param language lowercase two-letter ISO-639 A2 language code - * @param country uppercase two-letter ISO-3166 A2 country code - * @throws NullPointerException if either argument is null - */ - public Locale(String language, String country) - { - this(language, country, ""); - } - - /** - * Creates a new locale for a language. - * - * @param language lowercase two-letter ISO-639 A2 language code - * @throws NullPointerException if either argument is null - * @since 1.4 - */ - public Locale(String language) - { - this(language, "", ""); - } - - /** - * Returns the default Locale. The default locale is generally once set - * on start up and then never changed. Normally you should use this locale - * for everywhere you need a locale. The initial setting matches the - * default locale, the user has chosen. - * - * @return the default locale for this virtual machine - */ - public static Locale getDefault() - { - return defaultLocale; - } - - /** - * Changes the default locale. Normally only called on program start up. - * Note that this doesn't change the locale for other programs. This has - * a security check, - * <code>PropertyPermission("user.language", "write")</code>, because of - * its potential impact to running code. - * - * @param newLocale the new default locale - * @throws NullPointerException if newLocale is null - * @throws SecurityException if permission is denied - */ - public static void setDefault(Locale newLocale) - { - if (newLocale == null) - throw new NullPointerException(); - SecurityManager sm = System.getSecurityManager(); - if (sm != null) - sm.checkPermission(new PropertyPermission("user.language", "write")); - defaultLocale = newLocale; - } - - /** - * Returns the list of available locales. - * - * @return the installed locales - */ - public static synchronized Locale[] getAvailableLocales() - { - if (availableLocales == null) - { - int len = LocaleHelper.getLocaleCount(); - availableLocales = new Locale[len]; - - for (int i = 0; i < len; i++) - { - String language; - String country = ""; - String variant = ""; - String name = LocaleHelper.getLocaleName(i); - - language = name.substring(0, 2); - - if (name.length() > 2) - country = name.substring(3); - - int index = country.indexOf("_"); - if (index > 0) - { - variant = country.substring(index + 1); - country = country.substring(0, index - 1); - } - - availableLocales[i] = getLocale(language, country, variant); - } - } - - return (Locale[]) availableLocales.clone(); - } - - /** - * Returns a list of all 2-letter uppercase country codes as defined - * in ISO 3166. - * - * @return a list of acceptable country codes - */ - public static String[] getISOCountries() - { - if (countryCache == null) - { - countryCache = getISOStrings("territories"); - } - - return (String[]) countryCache.clone(); - } - - /** - * Returns a list of all 2-letter lowercase language codes as defined - * in ISO 639 (both old and new variant). - * - * @return a list of acceptable language codes - */ - public static String[] getISOLanguages() - { - if (languageCache == null) - { - languageCache = getISOStrings("languages"); - } - return (String[]) languageCache.clone(); - } - - /** - * Returns the set of keys from the specified resource hashtable, filtered - * so that only two letter strings are returned. - * - * @param tableName the name of the table from which to retrieve the keys. - * @return an array of two-letter strings. - */ - private static String[] getISOStrings(String tableName) - { - int count = 0; - ResourceBundle bundle = - ResourceBundle.getBundle("gnu.java.locale.LocaleInformation"); - Enumeration e = bundle.getKeys(); - ArrayList tempList = new ArrayList(); - - while (e.hasMoreElements()) - { - String key = (String) e.nextElement(); - - if (key.startsWith(tableName + ".")) - { - String str = key.substring(tableName.length() + 1); - - if (str.length() == 2 - && Character.isLetter(str.charAt(0)) - && Character.isLetter(str.charAt(1))) - { - tempList.add(str); - ++count; - } - } - } - - String[] strings = new String[count]; - - for (int a = 0; a < count; ++a) - strings[a] = (String) tempList.get(a); - - return strings; - } - - /** - * Returns the language code of this locale. Some language codes have changed - * as ISO 639 has evolved; this returns the old name, even if you built - * the locale with the new one. - * - * @return language code portion of this locale, or an empty String - */ - public String getLanguage() - { - return language; - } - - /** - * Returns the country code of this locale. - * - * @return country code portion of this locale, or an empty String - */ - public String getCountry() - { - return country; - } - - /** - * Returns the variant code of this locale. - * - * @return the variant code portion of this locale, or an empty String - */ - public String getVariant() - { - return variant; - } - - /** - * Gets the string representation of the current locale. This consists of - * the language, the country, and the variant, separated by an underscore. - * The variant is listed only if there is a language or country. Examples: - * "en", "de_DE", "_GB", "en_US_WIN", "de__POSIX", "fr__MAC". - * - * @return the string representation of this Locale - * @see #getDisplayName() - */ - public String toString() - { - if (language.length() == 0 && country.length() == 0) - return ""; - else if (country.length() == 0 && variant.length() == 0) - return language; - CPStringBuilder result = new CPStringBuilder(language); - result.append('_').append(country); - if (variant.length() != 0) - result.append('_').append(variant); - return result.toString(); - } - - /** - * Returns the three-letter ISO language abbrevation of this locale. - * - * @throws MissingResourceException if the three-letter code is not known - */ - public String getISO3Language() - { - // We know all strings are interned so we can use '==' for better performance. - if (language == "") - return ""; - int index - = ("aa,ab,af,am,ar,as,ay,az,ba,be,bg,bh,bi,bn,bo,br,ca,co,cs,cy,da," - + "de,dz,el,en,eo,es,et,eu,fa,fi,fj,fo,fr,fy,ga,gd,gl,gn,gu,ha,iw," - + "hi,hr,hu,hy,ia,in,ie,ik,in,is,it,iu,iw,ja,ji,jw,ka,kk,kl,km,kn," - + "ko,ks,ku,ky,la,ln,lo,lt,lv,mg,mi,mk,ml,mn,mo,mr,ms,mt,my,na,ne," - + "nl,no,oc,om,or,pa,pl,ps,pt,qu,rm,rn,ro,ru,rw,sa,sd,sg,sh,si,sk," - + "sl,sm,sn,so,sq,sr,ss,st,su,sv,sw,ta,te,tg,th,ti,tk,tl,tn,to,tr," - + "ts,tt,tw,ug,uk,ur,uz,vi,vo,wo,xh,ji,yo,za,zh,zu") - .indexOf(language); - - if (index % 3 != 0 || language.length() != 2) - throw new MissingResourceException - ("Can't find ISO3 language for " + language, - "java.util.Locale", language); - - // Don't read this aloud. These are the three letter language codes. - return - ("aarabkaframharaasmaymazebakbelbulbihbisbenbodbrecatcoscescymdandeu" - + "dzoellengepospaesteusfasfinfijfaofrafrygaigdhglggrngujhauhebhinhrv" - + "hunhyeinaindileipkindislitaikuhebjpnyidjawkatkazkalkhmkankorkaskur" - + "kirlatlinlaolitlavmlgmrimkdmalmonmolmarmsamltmyanaunepnldnorociorm" - + "oripanpolpusporquerohrunronruskinsansndsagsrpsinslkslvsmosnasomsqi" - + "srpsswsotsunsweswatamteltgkthatirtuktgltsntonturtsotattwiuigukrurd" - + "uzbvievolwolxhoyidyorzhazhozul") - .substring(index, index + 3); - } - - /** - * Returns the three-letter ISO country abbrevation of the locale. - * - * @throws MissingResourceException if the three-letter code is not known - */ - public String getISO3Country() - { - // We know all strings are interned so we can use '==' for better performance. - if (country == "") - return ""; - int index - = ("AD,AE,AF,AG,AI,AL,AM,AN,AO,AQ,AR,AS,AT,AU,AW,AZ,BA,BB,BD,BE,BF," - + "BG,BH,BI,BJ,BM,BN,BO,BR,BS,BT,BV,BW,BY,BZ,CA,CC,CF,CG,CH,CI,CK," - + "CL,CM,CN,CO,CR,CU,CV,CX,CY,CZ,DE,DJ,DK,DM,DO,DZ,EC,EE,EG,EH,ER," - + "ES,ET,FI,FJ,FK,FM,FO,FR,FX,GA,GB,GD,GE,GF,GH,GI,GL,GM,GN,GP,GQ," - + "GR,GS,GT,GU,GW,GY,HK,HM,HN,HR,HT,HU,ID,IE,IL,IN,IO,IQ,IR,IS,IT," - + "JM,JO,JP,KE,KG,KH,KI,KM,KN,KP,KR,KW,KY,KZ,LA,LB,LC,LI,LK,LR,LS," - + "LT,LU,LV,LY,MA,MC,MD,MG,MH,MK,ML,MM,MN,MO,MP,MQ,MR,MS,MT,MU,MV," - + "MW,MX,MY,MZ,NA,NC,NE,NF,NG,NI,NL,NO,NP,NR,NU,NZ,OM,PA,PE,PF,PG," - + "PH,PK,PL,PM,PN,PR,PT,PW,PY,QA,RE,RO,RU,RW,SA,SB,SC,SD,SE,SG,SH," - + "SI,SJ,SK,SL,SM,SN,SO,SR,ST,SV,SY,SZ,TC,TD,TF,TG,TH,TJ,TK,TM,TN," - + "TO,TP,TR,TT,TV,TW,TZ,UA,UG,UM,US,UY,UZ,VA,VC,VE,VG,VI,VN,VU,WF," - + "WS,YE,YT,YU,ZA,ZM,ZR,ZW") - .indexOf(country); - - if (index % 3 != 0 || country.length() != 2) - throw new MissingResourceException - ("Can't find ISO3 country for " + country, - "java.util.Locale", country); - - // Don't read this aloud. These are the three letter country codes. - return - ("ANDAREAFGATGAIAALBARMANTAGOATAARGASMAUTAUSABWAZEBIHBRBBGDBELBFABGR" - + "BHRBDIBENBMUBRNBOLBRABHSBTNBVTBWABLRBLZCANCCKCAFCOGCHECIVCOKCHLCMR" - + "CHNCOLCRICUBCPVCXRCYPCZEDEUDJIDNKDMADOMDZAECUESTEGYESHERIESPETHFIN" - + "FJIFLKFSMFROFRAFXXGABGBRGRDGEOGUFGHAGIBGRLGMBGINGLPGNQGRCSGSGTMGUM" - + "GNBGUYHKGHMDHNDHRVHTIHUNIDNIRLISRINDIOTIRQIRNISLITAJAMJORJPNKENKGZ" - + "KHMKIRCOMKNAPRKKORKWTCYMKAZLAOLBNLCALIELKALBRLSOLTULUXLVALBYMARMCO" - + "MDAMDGMHLMKDMLIMMRMNGMACMNPMTQMRTMSRMLTMUSMDVMWIMEXMYSMOZNAMNCLNER" - + "NFKNGANICNLDNORNPLNRUNIUNZLOMNPANPERPYFPNGPHLPAKPOLSPMPCNPRIPRTPLW" - + "PRYQATREUROMRUSRWASAUSLBSYCSDNSWESGPSHNSVNSJMSVKSLESMRSENSOMSURSTP" - + "SLVSYRSWZTCATCDATFTGOTHATJKTKLTKMTUNTONTMPTURTTOTUVTWNTZAUKRUGAUMI" - + "USAURYUZBVATVCTVENVGBVIRVNMVUTWLFWSMYEMMYTYUGZAFZMBZARZWE") - .substring(index, index + 3); - } - - /** - * Gets the country name suitable for display to the user, formatted - * for the default locale. This has the same effect as - * <pre> - * getDisplayLanguage(Locale.getDefault()); - * </pre> - * - * @return the language name of this locale localized to the default locale, - * with the ISO code as backup - */ - public String getDisplayLanguage() - { - return getDisplayLanguage(defaultLocale); - } - - /** - * <p> - * Gets the name of the language specified by this locale, in a form suitable - * for display to the user. If possible, the display name will be localized - * to the specified locale. For example, if the locale instance is - * <code>Locale.GERMANY</code>, and the specified locale is <code>Locale.UK</code>, - * the result would be 'German'. Using the German locale would instead give - * 'Deutsch'. If the display name can not be localized to the supplied - * locale, it will fall back on other output in the following order: - * </p> - * <ul> - * <li>the display name in the default locale</li> - * <li>the display name in English</li> - * <li>the ISO code</li> - * </ul> - * <p> - * If the language is unspecified by this locale, then the empty string is - * returned. - * </p> - * - * @param inLocale the locale to use for formatting the display string. - * @return the language name of this locale localized to the given locale, - * with the default locale, English and the ISO code as backups. - * @throws NullPointerException if the supplied locale is null. - */ - public String getDisplayLanguage(Locale inLocale) - { - if (language.isEmpty()) - return ""; - try - { - ResourceBundle res = - ResourceBundle.getBundle("gnu.java.locale.LocaleInformation", - inLocale, - ClassLoader.getSystemClassLoader()); - - return res.getString("languages." + language); - } - catch (MissingResourceException e) - { - /* This means runtime support for the locale - * is not available, so we check providers. */ - } - for (LocaleNameProvider p : - ServiceLoader.load(LocaleNameProvider.class)) - { - for (Locale loc : p.getAvailableLocales()) - { - if (loc.equals(inLocale)) - { - String locLang = p.getDisplayLanguage(language, - inLocale); - if (locLang != null) - return locLang; - break; - } - } - } - if (inLocale.equals(Locale.ROOT)) // Base case - return language; - return getDisplayLanguage(LocaleHelper.getFallbackLocale(inLocale)); - } - - /** - * Returns the country name of this locale localized to the - * default locale. If the localized is not found, the ISO code - * is returned. This has the same effect as - * <pre> - * getDisplayCountry(Locale.getDefault()); - * </pre> - * - * @return the country name of this locale localized to the given locale, - * with the ISO code as backup - */ - public String getDisplayCountry() - { - return getDisplayCountry(defaultLocale); - } - - /** - * <p> - * Gets the name of the country specified by this locale, in a form suitable - * for display to the user. If possible, the display name will be localized - * to the specified locale. For example, if the locale instance is - * <code>Locale.GERMANY</code>, and the specified locale is <code>Locale.UK</code>, - * the result would be 'Germany'. Using the German locale would instead give - * 'Deutschland'. If the display name can not be localized to the supplied - * locale, it will fall back on other output in the following order: - * </p> - * <ul> - * <li>the display name in the default locale</li> - * <li>the display name in English</li> - * <li>the ISO code</li> - * </ul> - * <p> - * If the country is unspecified by this locale, then the empty string is - * returned. - * </p> - * - * @param inLocale the locale to use for formatting the display string. - * @return the country name of this locale localized to the given locale, - * with the default locale, English and the ISO code as backups. - * @throws NullPointerException if the supplied locale is null. - */ - public String getDisplayCountry(Locale inLocale) - { - if (country.isEmpty()) - return ""; - try - { - ResourceBundle res = - ResourceBundle.getBundle("gnu.java.locale.LocaleInformation", - inLocale, - ClassLoader.getSystemClassLoader()); - - return res.getString("territories." + country); - } - catch (MissingResourceException e) - { - /* This means runtime support for the locale - * is not available, so we check providers. */ - } - for (LocaleNameProvider p : - ServiceLoader.load(LocaleNameProvider.class)) - { - for (Locale loc : p.getAvailableLocales()) - { - if (loc.equals(inLocale)) - { - String locCountry = p.getDisplayCountry(country, - inLocale); - if (locCountry != null) - return locCountry; - break; - } - } - } - if (inLocale.equals(Locale.ROOT)) // Base case - return country; - return getDisplayCountry(LocaleHelper.getFallbackLocale(inLocale)); - } - - /** - * Returns the variant name of this locale localized to the - * default locale. If the localized is not found, the variant code - * itself is returned. This has the same effect as - * <pre> - * getDisplayVariant(Locale.getDefault()); - * </pre> - * - * @return the variant code of this locale localized to the given locale, - * with the ISO code as backup - */ - public String getDisplayVariant() - { - return getDisplayVariant(defaultLocale); - } - - - /** - * <p> - * Gets the name of the variant specified by this locale, in a form suitable - * for display to the user. If possible, the display name will be localized - * to the specified locale. For example, if the locale instance is a revised - * variant, and the specified locale is <code>Locale.UK</code>, the result - * would be 'REVISED'. Using the German locale would instead give - * 'Revidiert'. If the display name can not be localized to the supplied - * locale, it will fall back on other output in the following order: - * </p> - * <ul> - * <li>the display name in the default locale</li> - * <li>the display name in English</li> - * <li>the ISO code</li> - * </ul> - * <p> - * If the variant is unspecified by this locale, then the empty string is - * returned. - * </p> - * - * @param inLocale the locale to use for formatting the display string. - * @return the variant name of this locale localized to the given locale, - * with the default locale, English and the ISO code as backups. - * @throws NullPointerException if the supplied locale is null. - */ - public String getDisplayVariant(Locale inLocale) - { - if (variant.isEmpty()) - return ""; - try - { - ResourceBundle res = - ResourceBundle.getBundle("gnu.java.locale.LocaleInformation", - inLocale, - ClassLoader.getSystemClassLoader()); - - return res.getString("variants." + variant); - } - catch (MissingResourceException e) - { - /* This means runtime support for the locale - * is not available, so we check providers. */ - } - for (LocaleNameProvider p : - ServiceLoader.load(LocaleNameProvider.class)) - { - for (Locale loc : p.getAvailableLocales()) - { - if (loc.equals(inLocale)) - { - String locVar = p.getDisplayVariant(variant, - inLocale); - if (locVar != null) - return locVar; - break; - } - } - } - if (inLocale.equals(Locale.ROOT)) // Base case - return country; - return getDisplayVariant(LocaleHelper.getFallbackLocale(inLocale)); - } - - /** - * Gets all local components suitable for display to the user, formatted - * for the default locale. For the language component, getDisplayLanguage - * is called. For the country component, getDisplayCountry is called. - * For the variant set component, getDisplayVariant is called. - * - * <p>The returned String will be one of the following forms:<br> - * <pre> - * language (country, variant) - * language (country) - * language (variant) - * country (variant) - * language - * country - * variant - * </pre> - * - * @return String version of this locale, suitable for display to the user - */ - public String getDisplayName() - { - return getDisplayName(defaultLocale); - } - - /** - * Gets all local components suitable for display to the user, formatted - * for a specified locale. For the language component, - * getDisplayLanguage(Locale) is called. For the country component, - * getDisplayCountry(Locale) is called. For the variant set component, - * getDisplayVariant(Locale) is called. - * - * <p>The returned String will be one of the following forms:<br> - * <pre> - * language (country, variant) - * language (country) - * language (variant) - * country (variant) - * language - * country - * variant - * </pre> - * - * @param locale locale to use for formatting - * @return String version of this locale, suitable for display to the user - */ - public String getDisplayName(Locale locale) - { - CPStringBuilder result = new CPStringBuilder(); - int count = 0; - String[] delimiters = {"", " (", ","}; - if (language.length() != 0) - { - result.append(delimiters[count++]); - result.append(getDisplayLanguage(locale)); - } - if (country.length() != 0) - { - result.append(delimiters[count++]); - result.append(getDisplayCountry(locale)); - } - if (variant.length() != 0) - { - result.append(delimiters[count++]); - result.append(getDisplayVariant(locale)); - } - if (count > 1) - result.append(")"); - return result.toString(); - } - - /** - * Does the same as <code>Object.clone()</code> but does not throw - * a <code>CloneNotSupportedException</code>. Why anyone would - * use this method is a secret to me, since this class is immutable. - * - * @return the clone - */ - public Object clone() - { - // This class is final, so no need to use native super.clone(). - return new Locale(language, country, variant); - } - - /** - * Return the hash code for this locale. The hashcode is the logical - * xor of the hash codes of the language, the country and the variant. - * The hash code is precomputed, since <code>Locale</code>s are often - * used in hash tables. - * - * @return the hashcode - */ - public int hashCode() - { - return hashcode; - } - - /** - * Compares two locales. To be equal, obj must be a Locale with the same - * language, country, and variant code. - * - * @param obj the other locale - * @return true if obj is equal to this - */ - public boolean equals(Object obj) - { - if (this == obj) - return true; - if (! (obj instanceof Locale)) - return false; - Locale l = (Locale) obj; - - return (language == l.language - && country == l.country - && variant == l.variant); - } - - /** - * Write the locale to an object stream. - * - * @param s the stream to write to - * @throws IOException if the write fails - * @serialData The first three fields are Strings representing language, - * country, and variant. The fourth field is a placeholder for - * the cached hashcode, but this is always written as -1, and - * recomputed when reading it back. - */ - private void writeObject(ObjectOutputStream s) - throws IOException - { - ObjectOutputStream.PutField fields = s.putFields(); - fields.put("hashcode", -1); - s.defaultWriteObject(); - } - - /** - * Reads a locale from the input stream. - * - * @param s the stream to read from - * @throws IOException if reading fails - * @throws ClassNotFoundException if reading fails - * @serialData the hashCode is always invalid and must be recomputed - */ - private void readObject(ObjectInputStream s) - throws IOException, ClassNotFoundException - { - s.defaultReadObject(); - hashcode = language.hashCode() ^ country.hashCode() ^ variant.hashCode(); - } -} // class Locale |