--- /dev/null Fri Aug 17 22:30:52 2012 +++ new/src/share/classes/sun/util/locale/provider/LocaleNameProviderImpl.java Fri Aug 17 22:30:50 2012 @@ -0,0 +1,195 @@ +/* + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code 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 + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package sun.util.locale.provider; + +import java.util.Locale; +import java.util.MissingResourceException; +import java.util.Set; +import java.util.spi.LocaleNameProvider; +import sun.util.resources.OpenListResourceBundle; + +/** + * Concrete implementation of the + * {@link java.util.spi.LocaleNameProvider LocaleNameProvider} class + * for the JRE LocaleProviderAdapter. + * + * @author Naoto Sato + * @author Masayoshi Okutsu + */ +public class LocaleNameProviderImpl extends LocaleNameProvider implements AvailableLanguageTags { + private final LocaleProviderAdapter.Type type; + private final Set langtags; + + public LocaleNameProviderImpl(LocaleProviderAdapter.Type type, Set langtags) { + this.type = type; + this.langtags = langtags; + } + + /** + * Returns an array of all locales for which this locale service provider + * can provide localized objects or names. + * + * @return An array of all locales for which this locale service provider + * can provide localized objects or names. + */ + @Override + public Locale[] getAvailableLocales() { + return LocaleProviderAdapter.toLocaleArray(langtags); + } + + @Override + public boolean isSupportedLocale(Locale locale) { + return LocaleProviderAdapter.isSupportedLocale(locale, type, langtags); + } + + /** + * Returns a localized name for the given ISO 639 language code and the + * given locale that is appropriate for display to the user. + * For example, if languageCode is "fr" and locale + * is en_US, getDisplayLanguage() will return "French"; if languageCode + * is "en" and locale is fr_FR, getDisplayLanguage() will return "anglais". + * If the name returned cannot be localized according to locale, + * (say, the provider does not have a Japanese name for Croatian), + * this method returns null. + * @param languageCode the ISO 639 language code string in the form of two + * lower-case letters between 'a' (U+0061) and 'z' (U+007A) + * @param locale the desired locale + * @return the name of the given language code for the specified locale, or null if it's not + * available. + * @exception NullPointerException if languageCode or locale is null + * @exception IllegalArgumentException if languageCode is not in the form of + * two lower-case letters, or locale isn't + * one of the locales returned from + * {@link java.util.spi.LocaleServiceProvider#getAvailableLocales() + * getAvailableLocales()}. + * @see java.util.Locale#getDisplayLanguage(java.util.Locale) + */ + @Override + public String getDisplayLanguage(String lang, Locale locale) { + return getDisplayString(lang, locale); + } + + /** + * Returns a localized name for the given + * IETF BCP47 script code and the given locale that is appropriate for + * display to the user. + * For example, if scriptCode is "Latn" and locale + * is en_US, getDisplayScript() will return "Latin"; if scriptCode + * is "Cyrl" and locale is fr_FR, getDisplayScript() will return "cyrillique". + * If the name returned cannot be localized according to locale, + * (say, the provider does not have a Japanese name for Cyrillic), + * this method returns null. The default implementation returns null. + * @param scriptCode the four letter script code string in the form of title-case + * letters (the first letter is upper-case character between 'A' (U+0041) and + * 'Z' (U+005A) followed by three lower-case character between 'a' (U+0061) + * and 'z' (U+007A)). + * @param locale the desired locale + * @return the name of the given script code for the specified locale, or null if it's not + * available. + * @exception NullPointerException if scriptCode or locale is null + * @exception IllegalArgumentException if scriptCode is not in the form of + * four title case letters, or locale isn't + * one of the locales returned from + * {@link java.util.spi.LocaleServiceProvider#getAvailableLocales() + * getAvailableLocales()}. + * @see java.util.Locale#getDisplayScript(java.util.Locale) + */ + @Override + public String getDisplayScript(String scriptCode, Locale locale) { + return getDisplayString(scriptCode, locale); + } + + /** + * Returns a localized name for the given ISO 3166 country code and the + * given locale that is appropriate for display to the user. + * For example, if countryCode is "FR" and locale + * is en_US, getDisplayCountry() will return "France"; if countryCode + * is "US" and locale is fr_FR, getDisplayCountry() will return "Etats-Unis". + * If the name returned cannot be localized according to locale, + * (say, the provider does not have a Japanese name for Croatia), + * this method returns null. + * @param countryCode the ISO 3166 country code string in the form of two + * upper-case letters between 'A' (U+0041) and 'Z' (U+005A) + * @param locale the desired locale + * @return the name of the given country code for the specified locale, or null if it's not + * available. + * @exception NullPointerException if countryCode or locale is null + * @exception IllegalArgumentException if countryCode is not in the form of + * two upper-case letters, or locale isn't + * one of the locales returned from + * {@link java.util.spi.LocaleServiceProvider#getAvailableLocales() + * getAvailableLocales()}. + * @see java.util.Locale#getDisplayCountry(java.util.Locale) + */ + @Override + public String getDisplayCountry(String ctry, Locale locale) { + return getDisplayString(ctry, locale); + } + + /** + * Returns a localized name for the given variant code and the given locale that + * is appropriate for display to the user. + * If the name returned cannot be localized according to locale, + * this method returns null. + * @param variant the variant string + * @param locale the desired locale + * @return the name of the given variant string for the specified locale, or null if it's not + * available. + * @exception NullPointerException if variant or locale is null + * @exception IllegalArgumentException if locale isn't + * one of the locales returned from + * {@link java.util.spi.LocaleServiceProvider#getAvailableLocales() + * getAvailableLocales()}. + * @see java.util.Locale#getDisplayVariant(java.util.Locale) + */ + @Override + public String getDisplayVariant(String vrnt, Locale locale) { + return getDisplayString("%%"+vrnt, locale); + } + + private String getDisplayString(String key, Locale locale) { + if (key == null || locale == null) { + throw new NullPointerException(); + } + + OpenListResourceBundle rb = LocaleProviderAdapter.forType(type).getLocaleData().getLocaleNames(locale); + LocaleServiceProviderPool pool = + LocaleServiceProviderPool.getPool(LocaleNameProvider.class); + try { + if (!pool.hasProviders() || + (rb.getLocale().equals(locale) && rb.handleGetKeys().contains(key))) { + return rb.getString(key); + } + } catch (MissingResourceException mre) {} + + return null; + } + + @Override + public Set getAvailableLanguageTags() { + return langtags; + } +}