1 /* 2 * Copyright (c) 2012, 2013, 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.locale.provider; 27 28 import java.util.Collections; 29 import java.util.HashSet; 30 import java.util.Locale; 31 import java.util.Set; 32 33 /** 34 * FallbackProviderAdapter implementation. 35 * 36 * @author Naoto Sato 37 */ 38 public class FallbackLocaleProviderAdapter extends JRELocaleProviderAdapter { 39 40 /** 41 * Supported language tag set. 42 */ 43 private static final Set<String> rootTagSet = 44 Collections.singleton(Locale.ROOT.toLanguageTag()); 45 46 /** 47 * Fallback provider only provides the ROOT locale data. 48 */ 49 private final LocaleResources rootLocaleResources = 50 new LocaleResources(this, Locale.ROOT); 51 52 /** 53 * Returns the type of this LocaleProviderAdapter 54 */ 55 @Override 56 public LocaleProviderAdapter.Type getAdapterType() { 57 return Type.FALLBACK; 58 } 59 60 @Override 61 public LocaleResources getLocaleResources(Locale locale) { 62 return rootLocaleResources; 63 } 64 65 @Override 66 protected Set<String> createLanguageTagSet(String category) { 67 return rootTagSet; 68 } 69 }