1 /* 2 * Copyright (c) 2012, 2015, 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.Collections; 34 import java.util.HashSet; 35 import java.util.Locale; 36 import java.util.ResourceBundle; 37 import java.util.Set; 38 import java.util.StringTokenizer; 39 import java.util.spi.TimeZoneNameProvider; 40 import sun.util.locale.provider.JRELocaleProviderAdapter; 41 import sun.util.locale.provider.LocaleProviderAdapter; 42 43 /** 44 * LocaleProviderAdapter implementation for the CLDR locale data. 45 * 46 * @author Masayoshi Okutsu 47 * @author Naoto Sato 48 */ 49 public class CLDRLocaleProviderAdapter extends JRELocaleProviderAdapter { 50 private static final String LOCALE_DATA_JAR_NAME = "cldrdata.jar"; 51 52 public CLDRLocaleProviderAdapter() { 53 final String sep = File.separator; 54 String localeDataJar = java.security.AccessController.doPrivileged( 55 new sun.security.action.GetPropertyAction("java.home")) 56 + sep + "lib" + sep + "ext" + sep + LOCALE_DATA_JAR_NAME; 57 58 // Peek at the installed extension directory to see if the jar file for 59 // CLDR resources is installed or not. 60 final File f = new File(localeDataJar); 61 boolean result = AccessController.doPrivileged( 62 new PrivilegedAction<Boolean>() { 63 @Override 64 public Boolean run() { 65 return f.exists(); 66 } 67 }); 68 if (!result) { 69 throw new UnsupportedOperationException(); 70 } 71 } 72 73 /** 74 * Returns the type of this LocaleProviderAdapter 75 * @return the type of this 76 */ 77 @Override 78 public LocaleProviderAdapter.Type getAdapterType() { 79 return LocaleProviderAdapter.Type.CLDR; 80 } 81 82 @Override 83 public BreakIteratorProvider getBreakIteratorProvider() { 84 return null; 85 } 86 87 @Override 88 public CollatorProvider getCollatorProvider() { 89 return null; 90 } 91 92 @Override 93 public Locale[] getAvailableLocales() { 94 Set<String> all = createLanguageTagSet("All"); 95 Locale[] locs = new Locale[all.size()]; 96 int index = 0; 97 for (String tag : all) { 98 locs[index++] = Locale.forLanguageTag(tag); 99 } 100 return locs; 101 } 102 103 @Override 104 protected Set<String> createLanguageTagSet(String category) { 105 ResourceBundle rb = ResourceBundle.getBundle("sun.util.cldr.CLDRLocaleDataMetaInfo", Locale.ROOT); 106 String supportedLocaleString = rb.getString(category); 107 if (supportedLocaleString == null) { 108 return Collections.emptySet(); 109 } 110 Set<String> tagset = new HashSet<>(); 111 StringTokenizer tokens = new StringTokenizer(supportedLocaleString); 112 while (tokens.hasMoreTokens()) { 113 tagset.add(tokens.nextToken()); 114 } 115 return tagset; 116 } 117 }