author | ohair |
Wed, 06 Apr 2011 22:06:11 -0700 | |
changeset 9035 | 1255eb81cc2f |
parent 8695 | e83968c6ceda |
child 11138 | 9121a1a92512 |
permissions | -rw-r--r-- |
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/* |
9035
1255eb81cc2f
7033660: Update copyright year to 2011 on any files changed in 2011
ohair
parents:
8695
diff
changeset
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* Copyright (c) 1996, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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* (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved |
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* (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved |
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* |
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* The original version of this source code and documentation |
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* is copyrighted and owned by Taligent, Inc., a wholly-owned |
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* subsidiary of IBM. These materials are provided under terms |
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* of a License Agreement between Taligent and Sun. This technology |
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* is protected by multiple US and International patents. |
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* |
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* This notice and attribution to Taligent may not be removed. |
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* Taligent is a registered trademark of Taligent, Inc. |
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* |
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*/ |
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package sun.util.resources; |
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import java.io.File; |
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import java.security.AccessController; |
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import java.security.PrivilegedAction; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Locale; |
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import java.util.ResourceBundle; |
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import java.util.StringTokenizer; |
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import sun.util.LocaleDataMetaInfo; |
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/** |
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* Provides information about and access to resource bundles in the |
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* sun.text.resources and sun.util.resources package. |
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* |
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* @author Asmus Freytag |
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* @author Mark Davis |
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*/ |
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public class LocaleData { |
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private static final String localeDataJarName = "localedata.jar"; |
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/** |
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* Lazy load available locales. |
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*/ |
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private static class AvailableLocales { |
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static final Locale[] localeList = createLocaleList(); |
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} |
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/** |
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* Returns a list of the installed locales. Currently, this simply returns |
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* the list of locales for which a sun.text.resources.FormatData bundle |
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* exists. This bundle family happens to be the one with the broadest |
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* locale coverage in the JRE. |
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*/ |
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public static Locale[] getAvailableLocales() { |
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return AvailableLocales.localeList.clone(); |
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} |
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/** |
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* Gets a calendar data resource bundle, using privileges |
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* to allow accessing a sun.* package. |
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*/ |
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public static ResourceBundle getCalendarData(Locale locale) { |
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return getBundle("sun.util.resources.CalendarData", locale); |
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} |
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/** |
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* Gets a currency names resource bundle, using privileges |
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* to allow accessing a sun.* package. |
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*/ |
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public static OpenListResourceBundle getCurrencyNames(Locale locale) { |
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return (OpenListResourceBundle)getBundle("sun.util.resources.CurrencyNames", locale); |
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} |
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/** |
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* Gets a locale names resource bundle, using privileges |
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* to allow accessing a sun.* package. |
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*/ |
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public static OpenListResourceBundle getLocaleNames(Locale locale) { |
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return (OpenListResourceBundle)getBundle("sun.util.resources.LocaleNames", locale); |
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} |
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/** |
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* Gets a time zone names resource bundle, using privileges |
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* to allow accessing a sun.* package. |
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*/ |
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public static OpenListResourceBundle getTimeZoneNames(Locale locale) { |
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return (OpenListResourceBundle)getBundle("sun.util.resources.TimeZoneNames", locale); |
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} |
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/** |
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* Gets a collation data resource bundle, using privileges |
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* to allow accessing a sun.* package. |
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*/ |
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public static ResourceBundle getCollationData(Locale locale) { |
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return getBundle("sun.text.resources.CollationData", locale); |
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} |
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/** |
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* Gets a date format data resource bundle, using privileges |
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* to allow accessing a sun.* package. |
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*/ |
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public static ResourceBundle getDateFormatData(Locale locale) { |
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return getBundle("sun.text.resources.FormatData", locale); |
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} |
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/** |
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* Gets a number format data resource bundle, using privileges |
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* to allow accessing a sun.* package. |
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*/ |
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public static ResourceBundle getNumberFormatData(Locale locale) { |
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return getBundle("sun.text.resources.FormatData", locale); |
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} |
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private static ResourceBundle getBundle(final String baseName, final Locale locale) { |
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return (ResourceBundle) AccessController.doPrivileged(new PrivilegedAction() { |
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public Object run() { |
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return ResourceBundle. |
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getBundle(baseName, locale, |
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LocaleDataResourceBundleControl.getRBControlInstance()); |
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} |
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}); |
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} |
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static class LocaleDataResourceBundleControl extends ResourceBundle.Control { |
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/* Singlton instance of ResourceBundle.Control. */ |
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private static LocaleDataResourceBundleControl rbControlInstance = |
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new LocaleDataResourceBundleControl(); |
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public static LocaleDataResourceBundleControl getRBControlInstance() { |
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return rbControlInstance; |
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} |
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/* |
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* This method overrides the default implementation to search |
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* from a prebaked locale string list to determin the candidate |
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* locale list. |
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* |
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* @param baseName the resource bundle base name. |
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* locale the requested locale for the resource bundle. |
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* @returns a list of candidate locales to search from. |
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* @exception NullPointerException if baseName or locale is null. |
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*/ |
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@Override |
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public List<Locale> getCandidateLocales(String baseName, Locale locale) { |
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List<Locale> candidates = super.getCandidateLocales(baseName, locale); |
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/* Get the locale string list from LocaleDataMetaInfo class. */ |
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String localeString = LocaleDataMetaInfo.getSupportedLocaleString(baseName); |
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if (localeString.length() == 0) { |
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return candidates; |
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} |
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for (Iterator<Locale> l = candidates.iterator(); l.hasNext(); ) { |
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Locale loc = l.next(); |
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String lstr = null; |
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if (loc.getScript().length() > 0) { |
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lstr = loc.toLanguageTag().replace('-', '_'); |
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} else { |
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lstr = loc.toString(); |
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int idx = lstr.indexOf("_#"); |
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if (idx >= 0) { |
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lstr = lstr.substring(0, idx); |
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} |
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} |
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/* Every locale string in the locale string list returned from |
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the above getSupportedLocaleString is enclosed |
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within two white spaces so that we could check some locale |
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such as "en". |
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*/ |
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if (lstr.length() != 0 && localeString.indexOf(" " + lstr + " ") == -1) { |
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l.remove(); |
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} |
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} |
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return candidates; |
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} |
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/* |
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* Overrides "getFallbackLocale" to return null so |
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* that the fallback locale will be null. |
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* @param baseName the resource bundle base name. |
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* locale the requested locale for the resource bundle. |
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* @return null for the fallback locale. |
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* @exception NullPointerException if baseName or locale is null. |
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*/ |
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@Override |
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public Locale getFallbackLocale(String baseName, Locale locale) { |
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if (baseName == null || locale == null) { |
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throw new NullPointerException(); |
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} |
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return null; |
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} |
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} |
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/* |
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* Returns true if the non European resources jar file exists in jre |
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* extension directory. |
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* @returns true if the jar file is there. Otherwise, returns false. |
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*/ |
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private static boolean isNonEuroLangSupported() { |
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final String sep = File.separator; |
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String localeDataJar = |
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java.security.AccessController.doPrivileged( |
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new sun.security.action.GetPropertyAction("java.home")) + |
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sep + "lib" + sep + "ext" + sep + localeDataJarName; |
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/* Peek at the installed extension directory to see if |
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localedata.jar is installed or not. |
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*/ |
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final File f = new File(localeDataJar); |
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boolean isNonEuroResJarExist = |
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AccessController.doPrivileged(new PrivilegedAction<Boolean>() { |
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public Boolean run() { |
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return Boolean.valueOf(f.exists()); |
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} |
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}).booleanValue(); |
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return isNonEuroResJarExist; |
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} |
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/* |
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* This method gets the locale string list from LocaleDataMetaInfo class and |
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* then contructs the Locale array based on the locale string returned above. |
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* @returns the Locale array for the supported locale of JRE. |
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* |
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*/ |
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private static Locale[] createLocaleList() { |
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String supportedLocaleString = LocaleDataMetaInfo. |
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getSupportedLocaleString("sun.text.resources.FormatData"); |
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if (supportedLocaleString.length() == 0) { |
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return null; |
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} |
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/* Look for "|" and construct a new locale string list. */ |
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int barIndex = supportedLocaleString.indexOf("|"); |
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StringTokenizer localeStringTokenizer = null; |
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if (isNonEuroLangSupported()) { |
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localeStringTokenizer = new |
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StringTokenizer(supportedLocaleString.substring(0, barIndex) + |
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supportedLocaleString.substring(barIndex + 1)); |
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} else { |
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localeStringTokenizer = new |
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StringTokenizer(supportedLocaleString.substring(0, barIndex)); |
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} |
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Locale[] locales = new Locale[localeStringTokenizer.countTokens()]; |
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for (int i = 0; i < locales.length; i++) { |
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String currentToken = localeStringTokenizer.nextToken().replace('_','-'); |
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if (currentToken.equals("ja-JP-JP")) { |
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currentToken = "ja-JP-u-ca-japanese-x-lvariant-JP"; |
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} else if (currentToken.equals("th-TH-TH")) { |
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currentToken = "th-TH-u-nu-thai-x-lvariant-TH"; |
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} else if (currentToken.equals("no-NO-NY")) { |
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currentToken = "no-NO-x-lvariant-NY"; |
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} |
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locales[i] = Locale.forLanguageTag(currentToken); |
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} |
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return locales; |
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} |
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} |