1 /* 2 * Copyright (c) 2012, 2014, 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 package sun.util.locale.provider; 26 27 import java.util.Locale; 28 import java.util.Set; 29 import java.util.spi.CalendarDataProvider; 30 31 /** 32 * Concrete implementation of the {@link java.util.spi.CalendarDataProvider 33 * CalendarDataProvider} class for the JRE LocaleProviderAdapter. 34 * 35 * @author Masayoshi Okutsu 36 * @author Naoto Sato 37 */ 38 public class CalendarDataProviderImpl extends CalendarDataProvider implements AvailableLanguageTags { 39 private final LocaleProviderAdapter.Type type; 40 private Set<String> langtags; 41 42 public CalendarDataProviderImpl(LocaleProviderAdapter.Type type) { 43 this.type = type; 44 } 45 46 @Override 47 public int getFirstDayOfWeek(Locale locale) { 48 return LocaleProviderAdapter.forType(type).getLocaleResources(locale) 49 .getCalendarData(CalendarDataUtility.FIRST_DAY_OF_WEEK); 50 } 51 52 @Override 53 public int getMinimalDaysInFirstWeek(Locale locale) { 54 return LocaleProviderAdapter.forType(type).getLocaleResources(locale) 55 .getCalendarData(CalendarDataUtility.MINIMAL_DAYS_IN_FIRST_WEEK); 56 } 57 58 @Override 59 public Locale[] getAvailableLocales() { 60 return LocaleProviderAdapter.toLocaleArray(getLangTags()); 61 } 62 63 @Override 64 public Set<String> getAvailableLanguageTags() { 65 return getLangTags(); 66 } 67 68 private Set<String> getLangTags() { 69 if (langtags == null) { 70 langtags = ((JRELocaleProviderAdapter)LocaleProviderAdapter.forType(type)).getLanguageTagSet("CalendarData"); 71 } 72 return langtags; 73 } 74 }