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/*
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* Copyright (c) 2012, 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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package sun.util.cldr;
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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.text.spi.BreakIteratorProvider;
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import java.text.spi.CollatorProvider;
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import java.util.HashSet;
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import java.util.Locale;
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import java.util.ResourceBundle;
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import java.util.Set;
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import java.util.StringTokenizer;
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import java.util.spi.TimeZoneNameProvider;
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import sun.util.locale.provider.JRELocaleProviderAdapter;
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import sun.util.locale.provider.LocaleProviderAdapter;
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/**
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* LocaleProviderAdapter implementation for the CLDR locale data.
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*
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* @author Masayoshi Okutsu
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* @author Naoto Sato
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*/
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public class CLDRLocaleProviderAdapter extends JRELocaleProviderAdapter {
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private static final String LOCALE_DATA_JAR_NAME = "cldrdata.jar";
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public CLDRLocaleProviderAdapter() {
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final String sep = File.separator;
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String localeDataJar = java.security.AccessController.doPrivileged(
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new sun.security.action.GetPropertyAction("java.home"))
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+ sep + "lib" + sep + "ext" + sep + LOCALE_DATA_JAR_NAME;
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// Peek at the installed extension directory to see if the jar file for
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// CLDR resources is installed or not.
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final File f = new File(localeDataJar);
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boolean result = AccessController.doPrivileged(
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new PrivilegedAction<Boolean>() {
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@Override
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public Boolean run() {
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return f.exists();
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}
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});
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if (!result) {
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throw new UnsupportedOperationException();
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}
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}
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/**
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* Returns the type of this LocaleProviderAdapter
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* @return the type of this
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*/
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@Override
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public LocaleProviderAdapter.Type getAdapterType() {
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return LocaleProviderAdapter.Type.CLDR;
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}
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@Override
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public BreakIteratorProvider getBreakIteratorProvider() {
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return null;
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}
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@Override
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public CollatorProvider getCollatorProvider() {
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return null;
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}
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@Override
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public Locale[] getAvailableLocales() {
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Set<String> all = createLanguageTagSet("All");
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Locale[] locs = new Locale[all.size()];
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int index = 0;
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for (String tag : all) {
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locs[index++] = Locale.forLanguageTag(tag);
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}
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return locs;
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}
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@Override
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protected Set<String> createLanguageTagSet(String category) {
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ResourceBundle rb = ResourceBundle.getBundle("sun.util.cldr.CLDRLocaleDataMetaInfo", Locale.ROOT);
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String supportedLocaleString = rb.getString(category);
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Set<String> tagset = new HashSet<>();
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StringTokenizer tokens = new StringTokenizer(supportedLocaleString);
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while (tokens.hasMoreTokens()) {
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tagset.add(tokens.nextToken());
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}
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return tagset;
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}
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}
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