author | redestad |
Wed, 14 Feb 2018 14:45:38 +0100 | |
changeset 48894 | 99b94636fcd3 |
parent 48251 | 57148c79bd75 |
child 53877 | dfea18758dfa |
permissions | -rw-r--r-- |
48251 | 1 |
/* |
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* Copyright (c) 2017, 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 static sun.util.locale.provider.LocaleProviderAdapter.Type; |
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import java.util.Arrays; |
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import java.util.Map; |
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import java.util.Locale; |
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import java.util.Set; |
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import java.util.Optional; |
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import java.util.concurrent.ConcurrentHashMap; |
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import sun.util.locale.provider.LocaleProviderAdapter; |
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import sun.util.locale.provider.LocaleResources; |
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import sun.util.locale.provider.CalendarDataProviderImpl; |
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import sun.util.locale.provider.CalendarDataUtility; |
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/** |
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* Concrete implementation of the |
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* {@link java.util.spi.CalendarDataProvider CalendarDataProvider} class |
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* for the CLDR LocaleProviderAdapter. |
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* |
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* @author Naoto Sato |
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*/ |
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public class CLDRCalendarDataProviderImpl extends CalendarDataProviderImpl { |
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private static Map<String, Integer> firstDay = new ConcurrentHashMap<>(); |
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private static Map<String, Integer> minDays = new ConcurrentHashMap<>(); |
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public CLDRCalendarDataProviderImpl(Type type, Set<String> langtags) { |
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super(type, langtags); |
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} |
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@Override |
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public int getFirstDayOfWeek(Locale locale) { |
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return findValue(CalendarDataUtility.FIRST_DAY_OF_WEEK, locale); |
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} |
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@Override |
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public int getMinimalDaysInFirstWeek(Locale locale) { |
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return findValue(CalendarDataUtility.MINIMAL_DAYS_IN_FIRST_WEEK, locale); |
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} |
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/** |
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* Finds the requested integer value for the locale. |
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* Each resource consists of the following: |
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* |
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* (n: cc1 cc2 ... ccx;)* |
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* |
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* where 'n' is the integer for the following region codes, terminated by |
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* a ';'. |
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* |
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*/ |
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private static int findValue(String key, Locale locale) { |
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Map<String, Integer> map = CalendarDataUtility.FIRST_DAY_OF_WEEK.equals(key) ? |
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firstDay : minDays; |
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String region = locale.getCountry(); |
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if (region.isEmpty()) { |
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return 0; |
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} |
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Integer val = map.get(region); |
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if (val == null) { |
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String valStr = |
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LocaleProviderAdapter.forType(Type.CLDR).getLocaleResources(Locale.ROOT) |
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.getCalendarData(key); |
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val = retrieveInteger(valStr, region) |
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.orElse(retrieveInteger(valStr, "001").orElse(0)); |
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map.putIfAbsent(region, val); |
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} |
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return val; |
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} |
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private static Optional<Integer> retrieveInteger(String src, String region) { |
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8197829: Optimize CLDRCalendarDataProviderImpl::retrieveInteger
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int regionIndex = src.indexOf(region); |
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if (regionIndex >= 0) { |
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int start = src.lastIndexOf(';', regionIndex) + 1; |
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return Optional.of(Integer.parseInt(src, start, src.indexOf(':', start), 10)); |
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} |
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return Optional.empty(); |
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} |
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} |