1 /* 2 * Copyright (c) 2012, Oracle and/or its affiliates. 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.util.cldr; 27 28 import java.io.File; 29 import java.security.AccessController; 30 import java.security.PrivilegedAction; 31 import java.text.spi.BreakIteratorProvider; 32 import java.text.spi.CollatorProvider; 33 import java.util.HashSet; 34 import java.util.Locale; 35 import java.util.ResourceBundle; 36 import java.util.Set; 37 import java.util.StringTokenizer; 38 import java.util.spi.TimeZoneNameProvider; 39 import sun.util.locale.provider.JRELocaleProviderAdapter; 40 import sun.util.locale.provider.LocaleProviderAdapter; 41 42 /** 43 * LocaleProviderAdapter implementation for the CLDR locale data. 44 * 45 * @author Masayoshi Okutsu 46 * @author Naoto Sato 47 */ 48 public class CLDRLocaleProviderAdapter extends JRELocaleProviderAdapter { 49 private static final String LOCALE_DATA_JAR_NAME = "cldrdata.jar"; 50 51 public CLDRLocaleProviderAdapter() { 52 final String sep = File.separator; 53 String localeDataJar = java.security.AccessController.doPrivileged( 54 new sun.security.action.GetPropertyAction("java.home")) 55 + sep + "lib" + sep + "ext" + sep + LOCALE_DATA_JAR_NAME; 56 57 // Peek at the installed extension directory to see if the jar file for 58 // CLDR resources is installed or not. 59 final File f = new File(localeDataJar); 60 boolean result = AccessController.doPrivileged( 61 new PrivilegedAction<Boolean>() { 62 @Override 63 public Boolean run() { 64 return f.exists(); 65 } 66 }); 67 if (!result) { 68 throw new UnsupportedOperationException(); 69 } 70 } 71 72 /** 73 * Returns the type of this LocaleProviderAdapter 74 * @return the type of this 75 */ 76 @Override 77 public LocaleProviderAdapter.Type getAdapterType() { 78 return LocaleProviderAdapter.Type.CLDR; 79 } 80 81 @Override 82 public BreakIteratorProvider getBreakIteratorProvider() { 83 return null; 84 } 85 86 @Override 87 public CollatorProvider getCollatorProvider() { 88 return null; 89 } 90 91 @Override 92 public Locale[] getAvailableLocales() { 93 Set<String> all = createLanguageTagSet("All"); 94 Locale[] locs = new Locale[all.size()]; 95 int index = 0; 96 for (String tag : all) { 97 locs[index++] = Locale.forLanguageTag(tag); 98 } 99 return locs; 100 } 101 102 @Override 103 protected Set<String> createLanguageTagSet(String category) { 104 ResourceBundle rb = ResourceBundle.getBundle("sun.util.cldr.CLDRLocaleDataMetaInfo", Locale.ROOT); 105 String supportedLocaleString = rb.getString(category); 106 Set<String> tagset = new HashSet<>(); 107 StringTokenizer tokens = new StringTokenizer(supportedLocaleString); 108 while (tokens.hasMoreTokens()) { 109 tagset.add(tokens.nextToken()); 110 } 111 return tagset; 112 } 113 }