author | naoto |
Tue, 21 Aug 2012 11:00:30 -0700 | |
changeset 13583 | dc0017b1a452 |
parent 12549 | db2c42dabfa4 |
child 14172 | fad44417edf8 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1996, 2012, 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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/* |
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* (C) Copyright Taligent, Inc. 1996 - All Rights Reserved |
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* (C) Copyright IBM Corp. 1996 - All Rights Reserved |
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* |
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* The original version of this source code and documentation is copyrighted |
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* and owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These |
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* materials are provided under terms of a License Agreement between Taligent |
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* and Sun. This technology is protected by multiple US and International |
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* patents. This notice and attribution to Taligent may not be removed. |
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* Taligent is a registered trademark of Taligent, Inc. |
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* |
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*/ |
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package java.text; |
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import java.io.IOException; |
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import java.io.ObjectOutputStream; |
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import java.io.Serializable; |
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import java.lang.ref.SoftReference; |
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import java.text.spi.DateFormatSymbolsProvider; |
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import java.util.Arrays; |
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import java.util.Locale; |
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import java.util.ResourceBundle; |
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import java.util.TimeZone; |
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import java.util.concurrent.ConcurrentHashMap; |
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import java.util.concurrent.ConcurrentMap; |
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import sun.util.locale.provider.LocaleProviderAdapter; |
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import sun.util.locale.provider.LocaleServiceProviderPool; |
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import sun.util.locale.provider.TimeZoneNameUtility; |
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/** |
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* <code>DateFormatSymbols</code> is a public class for encapsulating |
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* localizable date-time formatting data, such as the names of the |
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* months, the names of the days of the week, and the time zone data. |
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* <code>DateFormat</code> and <code>SimpleDateFormat</code> both use |
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* <code>DateFormatSymbols</code> to encapsulate this information. |
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* |
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* <p> |
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* Typically you shouldn't use <code>DateFormatSymbols</code> directly. |
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* Rather, you are encouraged to create a date-time formatter with the |
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* <code>DateFormat</code> class's factory methods: <code>getTimeInstance</code>, |
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* <code>getDateInstance</code>, or <code>getDateTimeInstance</code>. |
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* These methods automatically create a <code>DateFormatSymbols</code> for |
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* the formatter so that you don't have to. After the |
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* formatter is created, you may modify its format pattern using the |
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* <code>setPattern</code> method. For more information about |
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* creating formatters using <code>DateFormat</code>'s factory methods, |
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* see {@link DateFormat}. |
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* |
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* <p> |
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* If you decide to create a date-time formatter with a specific |
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* format pattern for a specific locale, you can do so with: |
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* <blockquote> |
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* <pre> |
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* new SimpleDateFormat(aPattern, DateFormatSymbols.getInstance(aLocale)). |
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* </pre> |
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* </blockquote> |
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* |
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* <p> |
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* <code>DateFormatSymbols</code> objects are cloneable. When you obtain |
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* a <code>DateFormatSymbols</code> object, feel free to modify the |
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* date-time formatting data. For instance, you can replace the localized |
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* date-time format pattern characters with the ones that you feel easy |
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* to remember. Or you can change the representative cities |
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* to your favorite ones. |
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* |
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* <p> |
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* New <code>DateFormatSymbols</code> subclasses may be added to support |
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* <code>SimpleDateFormat</code> for date-time formatting for additional locales. |
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* @see DateFormat |
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* @see SimpleDateFormat |
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* @see java.util.SimpleTimeZone |
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* @author Chen-Lieh Huang |
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*/ |
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public class DateFormatSymbols implements Serializable, Cloneable { |
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/** |
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* Construct a DateFormatSymbols object by loading format data from |
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* resources for the default locale. This constructor can only |
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* construct instances for the locales supported by the Java |
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* runtime environment, not for those supported by installed |
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* {@link java.text.spi.DateFormatSymbolsProvider DateFormatSymbolsProvider} |
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* implementations. For full locale coverage, use the |
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* {@link #getInstance(Locale) getInstance} method. |
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* |
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* @see #getInstance() |
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* @exception java.util.MissingResourceException |
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* if the resources for the default locale cannot be |
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* found or cannot be loaded. |
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*/ |
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public DateFormatSymbols() |
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{ |
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initializeData(Locale.getDefault(Locale.Category.FORMAT)); |
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} |
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/** |
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* Construct a DateFormatSymbols object by loading format data from |
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* resources for the given locale. This constructor can only |
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* construct instances for the locales supported by the Java |
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* runtime environment, not for those supported by installed |
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* {@link java.text.spi.DateFormatSymbolsProvider DateFormatSymbolsProvider} |
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* implementations. For full locale coverage, use the |
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* {@link #getInstance(Locale) getInstance} method. |
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* |
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* @see #getInstance(Locale) |
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* @exception java.util.MissingResourceException |
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* if the resources for the specified locale cannot be |
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* found or cannot be loaded. |
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*/ |
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public DateFormatSymbols(Locale locale) |
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{ |
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initializeData(locale); |
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} |
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/** |
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* Era strings. For example: "AD" and "BC". An array of 2 strings, |
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* indexed by <code>Calendar.BC</code> and <code>Calendar.AD</code>. |
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* @serial |
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*/ |
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String eras[] = null; |
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/** |
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* Month strings. For example: "January", "February", etc. An array |
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* of 13 strings (some calendars have 13 months), indexed by |
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* <code>Calendar.JANUARY</code>, <code>Calendar.FEBRUARY</code>, etc. |
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* @serial |
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*/ |
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String months[] = null; |
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/** |
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* Short month strings. For example: "Jan", "Feb", etc. An array of |
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* 13 strings (some calendars have 13 months), indexed by |
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* <code>Calendar.JANUARY</code>, <code>Calendar.FEBRUARY</code>, etc. |
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* @serial |
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*/ |
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String shortMonths[] = null; |
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/** |
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* Weekday strings. For example: "Sunday", "Monday", etc. An array |
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* of 8 strings, indexed by <code>Calendar.SUNDAY</code>, |
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* <code>Calendar.MONDAY</code>, etc. |
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* The element <code>weekdays[0]</code> is ignored. |
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* @serial |
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*/ |
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String weekdays[] = null; |
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/** |
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* Short weekday strings. For example: "Sun", "Mon", etc. An array |
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* of 8 strings, indexed by <code>Calendar.SUNDAY</code>, |
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* <code>Calendar.MONDAY</code>, etc. |
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* The element <code>shortWeekdays[0]</code> is ignored. |
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* @serial |
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*/ |
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String shortWeekdays[] = null; |
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/** |
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* AM and PM strings. For example: "AM" and "PM". An array of |
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* 2 strings, indexed by <code>Calendar.AM</code> and |
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* <code>Calendar.PM</code>. |
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* @serial |
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*/ |
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String ampms[] = null; |
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/** |
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* Localized names of time zones in this locale. This is a |
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* two-dimensional array of strings of size <em>n</em> by <em>m</em>, |
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* where <em>m</em> is at least 5. Each of the <em>n</em> rows is an |
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* entry containing the localized names for a single <code>TimeZone</code>. |
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* Each such row contains (with <code>i</code> ranging from |
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* 0..<em>n</em>-1): |
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* <ul> |
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* <li><code>zoneStrings[i][0]</code> - time zone ID</li> |
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* <li><code>zoneStrings[i][1]</code> - long name of zone in standard |
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* time</li> |
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* <li><code>zoneStrings[i][2]</code> - short name of zone in |
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* standard time</li> |
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* <li><code>zoneStrings[i][3]</code> - long name of zone in daylight |
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* saving time</li> |
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* <li><code>zoneStrings[i][4]</code> - short name of zone in daylight |
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* saving time</li> |
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* </ul> |
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* The zone ID is <em>not</em> localized; it's one of the valid IDs of |
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* the {@link java.util.TimeZone TimeZone} class that are not |
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* <a href="../java/util/TimeZone.html#CustomID">custom IDs</a>. |
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* All other entries are localized names. |
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* @see java.util.TimeZone |
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* @serial |
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*/ |
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String zoneStrings[][] = null; |
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/** |
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* Indicates that zoneStrings is set externally with setZoneStrings() method. |
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*/ |
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transient boolean isZoneStringsSet = false; |
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/** |
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* Unlocalized date-time pattern characters. For example: 'y', 'd', etc. |
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* All locales use the same these unlocalized pattern characters. |
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*/ |
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static final String patternChars = "GyMdkHmsSEDFwWahKzZYuXL"; |
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static final int PATTERN_ERA = 0; // G |
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static final int PATTERN_YEAR = 1; // y |
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static final int PATTERN_MONTH = 2; // M |
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static final int PATTERN_DAY_OF_MONTH = 3; // d |
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static final int PATTERN_HOUR_OF_DAY1 = 4; // k |
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static final int PATTERN_HOUR_OF_DAY0 = 5; // H |
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static final int PATTERN_MINUTE = 6; // m |
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static final int PATTERN_SECOND = 7; // s |
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static final int PATTERN_MILLISECOND = 8; // S |
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static final int PATTERN_DAY_OF_WEEK = 9; // E |
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static final int PATTERN_DAY_OF_YEAR = 10; // D |
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static final int PATTERN_DAY_OF_WEEK_IN_MONTH = 11; // F |
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static final int PATTERN_WEEK_OF_YEAR = 12; // w |
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static final int PATTERN_WEEK_OF_MONTH = 13; // W |
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static final int PATTERN_AM_PM = 14; // a |
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static final int PATTERN_HOUR1 = 15; // h |
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static final int PATTERN_HOUR0 = 16; // K |
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static final int PATTERN_ZONE_NAME = 17; // z |
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static final int PATTERN_ZONE_VALUE = 18; // Z |
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static final int PATTERN_WEEK_YEAR = 19; // Y |
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static final int PATTERN_ISO_DAY_OF_WEEK = 20; // u |
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static final int PATTERN_ISO_ZONE = 21; // X |
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static final int PATTERN_MONTH_STANDALONE = 22; // L |
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/** |
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* Localized date-time pattern characters. For example, a locale may |
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* wish to use 'u' rather than 'y' to represent years in its date format |
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* pattern strings. |
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* This string must be exactly 18 characters long, with the index of |
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* the characters described by <code>DateFormat.ERA_FIELD</code>, |
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* <code>DateFormat.YEAR_FIELD</code>, etc. Thus, if the string were |
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* "Xz...", then localized patterns would use 'X' for era and 'z' for year. |
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* @serial |
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*/ |
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String localPatternChars = null; |
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/** |
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* The locale which is used for initializing this DateFormatSymbols object. |
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* |
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* @since 1.6 |
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* @serial |
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*/ |
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Locale locale = null; |
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/* use serialVersionUID from JDK 1.1.4 for interoperability */ |
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static final long serialVersionUID = -5987973545549424702L; |
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/** |
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* Returns an array of all locales for which the |
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* <code>getInstance</code> methods of this class can return |
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* localized instances. |
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* The returned array represents the union of locales supported by the |
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* Java runtime and by installed |
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* {@link java.text.spi.DateFormatSymbolsProvider DateFormatSymbolsProvider} |
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* implementations. It must contain at least a <code>Locale</code> |
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* instance equal to {@link java.util.Locale#US Locale.US}. |
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* |
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* @return An array of locales for which localized |
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* <code>DateFormatSymbols</code> instances are available. |
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* @since 1.6 |
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*/ |
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public static Locale[] getAvailableLocales() { |
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LocaleServiceProviderPool pool= |
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LocaleServiceProviderPool.getPool(DateFormatSymbolsProvider.class); |
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return pool.getAvailableLocales(); |
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} |
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/** |
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* Gets the <code>DateFormatSymbols</code> instance for the default |
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* locale. This method provides access to <code>DateFormatSymbols</code> |
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* instances for locales supported by the Java runtime itself as well |
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* as for those supported by installed |
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* {@link java.text.spi.DateFormatSymbolsProvider DateFormatSymbolsProvider} |
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* implementations. |
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* @return a <code>DateFormatSymbols</code> instance. |
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* @since 1.6 |
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*/ |
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public static final DateFormatSymbols getInstance() { |
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return getInstance(Locale.getDefault(Locale.Category.FORMAT)); |
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} |
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/** |
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* Gets the <code>DateFormatSymbols</code> instance for the specified |
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* locale. This method provides access to <code>DateFormatSymbols</code> |
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* instances for locales supported by the Java runtime itself as well |
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* as for those supported by installed |
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* {@link java.text.spi.DateFormatSymbolsProvider DateFormatSymbolsProvider} |
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* implementations. |
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* @param locale the given locale. |
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* @return a <code>DateFormatSymbols</code> instance. |
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* @exception NullPointerException if <code>locale</code> is null |
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* @since 1.6 |
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*/ |
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public static final DateFormatSymbols getInstance(Locale locale) { |
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DateFormatSymbols dfs = getProviderInstance(locale); |
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if (dfs != null) { |
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return dfs; |
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326 |
} |
13583 | 327 |
throw new RuntimeException("DateFormatSymbols instance creation failed."); |
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328 |
} |
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329 |
|
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330 |
/** |
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331 |
* Returns a DateFormatSymbols provided by a provider or found in |
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332 |
* the cache. Note that this method returns a cached instance, |
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333 |
* not its clone. Therefore, the instance should never be given to |
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334 |
* an application. |
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|
335 |
*/ |
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336 |
static final DateFormatSymbols getInstanceRef(Locale locale) { |
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337 |
DateFormatSymbols dfs = getProviderInstance(locale); |
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338 |
if (dfs != null) { |
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339 |
return dfs; |
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340 |
} |
13583 | 341 |
throw new RuntimeException("DateFormatSymbols instance creation failed."); |
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342 |
} |
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|
343 |
|
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344 |
private static DateFormatSymbols getProviderInstance(Locale locale) { |
13583 | 345 |
LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(DateFormatSymbolsProvider.class, locale); |
346 |
DateFormatSymbolsProvider provider = adapter.getDateFormatSymbolsProvider(); |
|
347 |
DateFormatSymbols dfsyms = provider.getInstance(locale); |
|
348 |
if (dfsyms == null) { |
|
349 |
provider = LocaleProviderAdapter.forJRE().getDateFormatSymbolsProvider(); |
|
350 |
dfsyms = provider.getInstance(locale); |
|
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351 |
} |
13583 | 352 |
return dfsyms; |
2 | 353 |
} |
354 |
||
355 |
/** |
|
356 |
* Gets era strings. For example: "AD" and "BC". |
|
357 |
* @return the era strings. |
|
358 |
*/ |
|
359 |
public String[] getEras() { |
|
360 |
return Arrays.copyOf(eras, eras.length); |
|
361 |
} |
|
362 |
||
363 |
/** |
|
364 |
* Sets era strings. For example: "AD" and "BC". |
|
365 |
* @param newEras the new era strings. |
|
366 |
*/ |
|
367 |
public void setEras(String[] newEras) { |
|
368 |
eras = Arrays.copyOf(newEras, newEras.length); |
|
369 |
} |
|
370 |
||
371 |
/** |
|
372 |
* Gets month strings. For example: "January", "February", etc. |
|
13583 | 373 |
* |
374 |
* <p>If the language requires different forms for formatting and |
|
375 |
* stand-alone usages, this method returns month names in the |
|
376 |
* formatting form. For example, the preferred month name for |
|
377 |
* January in the Czech language is <em>ledna</em> in the |
|
378 |
* formatting form, while it is <em>leden</em> in the stand-alone |
|
379 |
* form. This method returns {@code "ledna"} in this case. Refer |
|
380 |
* to the <a href="http://unicode.org/reports/tr35/#Calendar_Elements"> |
|
381 |
* Calendar Elements in the Unicode Locale Data Markup Language |
|
382 |
* (LDML) specification</a> for more details. |
|
383 |
* |
|
2 | 384 |
* @return the month strings. |
385 |
*/ |
|
386 |
public String[] getMonths() { |
|
387 |
return Arrays.copyOf(months, months.length); |
|
388 |
} |
|
389 |
||
390 |
/** |
|
391 |
* Sets month strings. For example: "January", "February", etc. |
|
392 |
* @param newMonths the new month strings. |
|
393 |
*/ |
|
394 |
public void setMonths(String[] newMonths) { |
|
395 |
months = Arrays.copyOf(newMonths, newMonths.length); |
|
396 |
} |
|
397 |
||
398 |
/** |
|
399 |
* Gets short month strings. For example: "Jan", "Feb", etc. |
|
13583 | 400 |
* |
401 |
* <p>If the language requires different forms for formatting and |
|
402 |
* stand-alone usages, This method returns short month names in |
|
403 |
* the formatting form. For example, the preferred abbreviation |
|
404 |
* for January in the Catalan language is <em>de gen.</em> in the |
|
405 |
* formatting form, while it is <em>gen.</em> in the stand-alone |
|
406 |
* form. This method returns {@code "de gen."} in this case. Refer |
|
407 |
* to the <a href="http://unicode.org/reports/tr35/#Calendar_Elements"> |
|
408 |
* Calendar Elements in the Unicode Locale Data Markup Language |
|
409 |
* (LDML) specification</a> for more details. |
|
410 |
* |
|
2 | 411 |
* @return the short month strings. |
412 |
*/ |
|
413 |
public String[] getShortMonths() { |
|
414 |
return Arrays.copyOf(shortMonths, shortMonths.length); |
|
415 |
} |
|
416 |
||
417 |
/** |
|
418 |
* Sets short month strings. For example: "Jan", "Feb", etc. |
|
419 |
* @param newShortMonths the new short month strings. |
|
420 |
*/ |
|
421 |
public void setShortMonths(String[] newShortMonths) { |
|
422 |
shortMonths = Arrays.copyOf(newShortMonths, newShortMonths.length); |
|
423 |
} |
|
424 |
||
425 |
/** |
|
426 |
* Gets weekday strings. For example: "Sunday", "Monday", etc. |
|
427 |
* @return the weekday strings. Use <code>Calendar.SUNDAY</code>, |
|
428 |
* <code>Calendar.MONDAY</code>, etc. to index the result array. |
|
429 |
*/ |
|
430 |
public String[] getWeekdays() { |
|
431 |
return Arrays.copyOf(weekdays, weekdays.length); |
|
432 |
} |
|
433 |
||
434 |
/** |
|
435 |
* Sets weekday strings. For example: "Sunday", "Monday", etc. |
|
436 |
* @param newWeekdays the new weekday strings. The array should |
|
437 |
* be indexed by <code>Calendar.SUNDAY</code>, |
|
438 |
* <code>Calendar.MONDAY</code>, etc. |
|
439 |
*/ |
|
440 |
public void setWeekdays(String[] newWeekdays) { |
|
441 |
weekdays = Arrays.copyOf(newWeekdays, newWeekdays.length); |
|
442 |
} |
|
443 |
||
444 |
/** |
|
445 |
* Gets short weekday strings. For example: "Sun", "Mon", etc. |
|
446 |
* @return the short weekday strings. Use <code>Calendar.SUNDAY</code>, |
|
447 |
* <code>Calendar.MONDAY</code>, etc. to index the result array. |
|
448 |
*/ |
|
449 |
public String[] getShortWeekdays() { |
|
450 |
return Arrays.copyOf(shortWeekdays, shortWeekdays.length); |
|
451 |
} |
|
452 |
||
453 |
/** |
|
454 |
* Sets short weekday strings. For example: "Sun", "Mon", etc. |
|
455 |
* @param newShortWeekdays the new short weekday strings. The array should |
|
456 |
* be indexed by <code>Calendar.SUNDAY</code>, |
|
457 |
* <code>Calendar.MONDAY</code>, etc. |
|
458 |
*/ |
|
459 |
public void setShortWeekdays(String[] newShortWeekdays) { |
|
460 |
shortWeekdays = Arrays.copyOf(newShortWeekdays, newShortWeekdays.length); |
|
461 |
} |
|
462 |
||
463 |
/** |
|
464 |
* Gets ampm strings. For example: "AM" and "PM". |
|
465 |
* @return the ampm strings. |
|
466 |
*/ |
|
467 |
public String[] getAmPmStrings() { |
|
468 |
return Arrays.copyOf(ampms, ampms.length); |
|
469 |
} |
|
470 |
||
471 |
/** |
|
472 |
* Sets ampm strings. For example: "AM" and "PM". |
|
473 |
* @param newAmpms the new ampm strings. |
|
474 |
*/ |
|
475 |
public void setAmPmStrings(String[] newAmpms) { |
|
476 |
ampms = Arrays.copyOf(newAmpms, newAmpms.length); |
|
477 |
} |
|
478 |
||
479 |
/** |
|
480 |
* Gets time zone strings. Use of this method is discouraged; use |
|
481 |
* {@link java.util.TimeZone#getDisplayName() TimeZone.getDisplayName()} |
|
482 |
* instead. |
|
483 |
* <p> |
|
484 |
* The value returned is a |
|
485 |
* two-dimensional array of strings of size <em>n</em> by <em>m</em>, |
|
486 |
* where <em>m</em> is at least 5. Each of the <em>n</em> rows is an |
|
487 |
* entry containing the localized names for a single <code>TimeZone</code>. |
|
488 |
* Each such row contains (with <code>i</code> ranging from |
|
489 |
* 0..<em>n</em>-1): |
|
490 |
* <ul> |
|
491 |
* <li><code>zoneStrings[i][0]</code> - time zone ID</li> |
|
492 |
* <li><code>zoneStrings[i][1]</code> - long name of zone in standard |
|
493 |
* time</li> |
|
494 |
* <li><code>zoneStrings[i][2]</code> - short name of zone in |
|
495 |
* standard time</li> |
|
496 |
* <li><code>zoneStrings[i][3]</code> - long name of zone in daylight |
|
497 |
* saving time</li> |
|
498 |
* <li><code>zoneStrings[i][4]</code> - short name of zone in daylight |
|
499 |
* saving time</li> |
|
500 |
* </ul> |
|
501 |
* The zone ID is <em>not</em> localized; it's one of the valid IDs of |
|
502 |
* the {@link java.util.TimeZone TimeZone} class that are not |
|
503 |
* <a href="../util/TimeZone.html#CustomID">custom IDs</a>. |
|
504 |
* All other entries are localized names. If a zone does not implement |
|
505 |
* daylight saving time, the daylight saving time names should not be used. |
|
506 |
* <p> |
|
507 |
* If {@link #setZoneStrings(String[][]) setZoneStrings} has been called |
|
508 |
* on this <code>DateFormatSymbols</code> instance, then the strings |
|
509 |
* provided by that call are returned. Otherwise, the returned array |
|
510 |
* contains names provided by the Java runtime and by installed |
|
511 |
* {@link java.util.spi.TimeZoneNameProvider TimeZoneNameProvider} |
|
512 |
* implementations. |
|
513 |
* |
|
514 |
* @return the time zone strings. |
|
515 |
* @see #setZoneStrings(String[][]) |
|
516 |
*/ |
|
517 |
public String[][] getZoneStrings() { |
|
518 |
return getZoneStringsImpl(true); |
|
519 |
} |
|
520 |
||
521 |
/** |
|
522 |
* Sets time zone strings. The argument must be a |
|
523 |
* two-dimensional array of strings of size <em>n</em> by <em>m</em>, |
|
524 |
* where <em>m</em> is at least 5. Each of the <em>n</em> rows is an |
|
525 |
* entry containing the localized names for a single <code>TimeZone</code>. |
|
526 |
* Each such row contains (with <code>i</code> ranging from |
|
527 |
* 0..<em>n</em>-1): |
|
528 |
* <ul> |
|
529 |
* <li><code>zoneStrings[i][0]</code> - time zone ID</li> |
|
530 |
* <li><code>zoneStrings[i][1]</code> - long name of zone in standard |
|
531 |
* time</li> |
|
532 |
* <li><code>zoneStrings[i][2]</code> - short name of zone in |
|
533 |
* standard time</li> |
|
534 |
* <li><code>zoneStrings[i][3]</code> - long name of zone in daylight |
|
535 |
* saving time</li> |
|
536 |
* <li><code>zoneStrings[i][4]</code> - short name of zone in daylight |
|
537 |
* saving time</li> |
|
538 |
* </ul> |
|
539 |
* The zone ID is <em>not</em> localized; it's one of the valid IDs of |
|
540 |
* the {@link java.util.TimeZone TimeZone} class that are not |
|
541 |
* <a href="../util/TimeZone.html#CustomID">custom IDs</a>. |
|
542 |
* All other entries are localized names. |
|
543 |
* |
|
544 |
* @param newZoneStrings the new time zone strings. |
|
545 |
* @exception IllegalArgumentException if the length of any row in |
|
546 |
* <code>newZoneStrings</code> is less than 5 |
|
547 |
* @exception NullPointerException if <code>newZoneStrings</code> is null |
|
548 |
* @see #getZoneStrings() |
|
549 |
*/ |
|
550 |
public void setZoneStrings(String[][] newZoneStrings) { |
|
551 |
String[][] aCopy = new String[newZoneStrings.length][]; |
|
552 |
for (int i = 0; i < newZoneStrings.length; ++i) { |
|
553 |
int len = newZoneStrings[i].length; |
|
554 |
if (len < 5) { |
|
555 |
throw new IllegalArgumentException(); |
|
556 |
} |
|
557 |
aCopy[i] = Arrays.copyOf(newZoneStrings[i], len); |
|
558 |
} |
|
559 |
zoneStrings = aCopy; |
|
560 |
isZoneStringsSet = true; |
|
561 |
} |
|
562 |
||
563 |
/** |
|
564 |
* Gets localized date-time pattern characters. For example: 'u', 't', etc. |
|
565 |
* @return the localized date-time pattern characters. |
|
566 |
*/ |
|
567 |
public String getLocalPatternChars() { |
|
6491
cd1bcc5057f4
4267450: (cal) API: Need public API to calculate, format and parse "year of week"
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diff
changeset
|
568 |
return localPatternChars; |
2 | 569 |
} |
570 |
||
571 |
/** |
|
572 |
* Sets localized date-time pattern characters. For example: 'u', 't', etc. |
|
573 |
* @param newLocalPatternChars the new localized date-time |
|
574 |
* pattern characters. |
|
575 |
*/ |
|
576 |
public void setLocalPatternChars(String newLocalPatternChars) { |
|
6491
cd1bcc5057f4
4267450: (cal) API: Need public API to calculate, format and parse "year of week"
okutsu
parents:
6489
diff
changeset
|
577 |
// Call toString() to throw an NPE in case the argument is null |
cd1bcc5057f4
4267450: (cal) API: Need public API to calculate, format and parse "year of week"
okutsu
parents:
6489
diff
changeset
|
578 |
localPatternChars = newLocalPatternChars.toString(); |
2 | 579 |
} |
580 |
||
581 |
/** |
|
582 |
* Overrides Cloneable |
|
583 |
*/ |
|
584 |
public Object clone() |
|
585 |
{ |
|
586 |
try |
|
587 |
{ |
|
588 |
DateFormatSymbols other = (DateFormatSymbols)super.clone(); |
|
589 |
copyMembers(this, other); |
|
590 |
return other; |
|
591 |
} catch (CloneNotSupportedException e) { |
|
10419
12c063b39232
7084245: Update usages of InternalError to use exception chaining
sherman
parents:
7003
diff
changeset
|
592 |
throw new InternalError(e); |
2 | 593 |
} |
594 |
} |
|
595 |
||
596 |
/** |
|
597 |
* Override hashCode. |
|
598 |
* Generates a hash code for the DateFormatSymbols object. |
|
599 |
*/ |
|
600 |
public int hashCode() { |
|
601 |
int hashcode = 0; |
|
602 |
String[][] zoneStrings = getZoneStringsWrapper(); |
|
603 |
for (int index = 0; index < zoneStrings[0].length; ++index) |
|
604 |
hashcode ^= zoneStrings[0][index].hashCode(); |
|
605 |
return hashcode; |
|
606 |
} |
|
607 |
||
608 |
/** |
|
609 |
* Override equals |
|
610 |
*/ |
|
611 |
public boolean equals(Object obj) |
|
612 |
{ |
|
613 |
if (this == obj) return true; |
|
614 |
if (obj == null || getClass() != obj.getClass()) return false; |
|
615 |
DateFormatSymbols that = (DateFormatSymbols) obj; |
|
616 |
return (Arrays.equals(eras, that.eras) |
|
617 |
&& Arrays.equals(months, that.months) |
|
618 |
&& Arrays.equals(shortMonths, that.shortMonths) |
|
619 |
&& Arrays.equals(weekdays, that.weekdays) |
|
620 |
&& Arrays.equals(shortWeekdays, that.shortWeekdays) |
|
621 |
&& Arrays.equals(ampms, that.ampms) |
|
622 |
&& Arrays.deepEquals(getZoneStringsWrapper(), that.getZoneStringsWrapper()) |
|
623 |
&& ((localPatternChars != null |
|
624 |
&& localPatternChars.equals(that.localPatternChars)) |
|
625 |
|| (localPatternChars == null |
|
626 |
&& that.localPatternChars == null))); |
|
627 |
} |
|
628 |
||
629 |
// =======================privates=============================== |
|
630 |
||
631 |
/** |
|
632 |
* Useful constant for defining time zone offsets. |
|
633 |
*/ |
|
634 |
static final int millisPerHour = 60*60*1000; |
|
635 |
||
636 |
/** |
|
7003
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
637 |
* Cache to hold DateFormatSymbols instances per Locale. |
2 | 638 |
*/ |
7003
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
639 |
private static final ConcurrentMap<Locale, SoftReference<DateFormatSymbols>> cachedInstances |
13583 | 640 |
= new ConcurrentHashMap<>(3); |
2 | 641 |
|
12549
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
642 |
private transient int lastZoneIndex = 0; |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
643 |
|
2 | 644 |
private void initializeData(Locale desiredLocale) { |
7003
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
645 |
locale = desiredLocale; |
2 | 646 |
|
7003
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
647 |
// Copy values of a cached instance if any. |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
648 |
SoftReference<DateFormatSymbols> ref = cachedInstances.get(locale); |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
649 |
DateFormatSymbols dfs; |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
650 |
if (ref != null && (dfs = ref.get()) != null) { |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
651 |
copyMembers(dfs, this); |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
652 |
return; |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
653 |
} |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
654 |
|
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
655 |
// Initialize the fields from the ResourceBundle for locale. |
13583 | 656 |
LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(DateFormatSymbolsProvider.class, locale); |
657 |
// Avoid any potential recursions |
|
658 |
switch (adapter.getAdapterType()) { |
|
659 |
case HOST: |
|
660 |
case SPI: |
|
661 |
adapter = LocaleProviderAdapter.getResourceBundleBased(); |
|
662 |
break; |
|
663 |
} |
|
664 |
ResourceBundle resource = adapter.getLocaleData().getDateFormatData(locale); |
|
7003
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
665 |
|
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
666 |
eras = resource.getStringArray("Eras"); |
2 | 667 |
months = resource.getStringArray("MonthNames"); |
668 |
shortMonths = resource.getStringArray("MonthAbbreviations"); |
|
669 |
ampms = resource.getStringArray("AmPmMarkers"); |
|
670 |
localPatternChars = resource.getString("DateTimePatternChars"); |
|
671 |
||
7003
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
672 |
// Day of week names are stored in a 1-based array. |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
673 |
weekdays = toOneBasedArray(resource.getStringArray("DayNames")); |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
674 |
shortWeekdays = toOneBasedArray(resource.getStringArray("DayAbbreviations")); |
13583 | 675 |
|
676 |
// Put a clone in the cache |
|
677 |
ref = new SoftReference<>((DateFormatSymbols)this.clone()); |
|
678 |
SoftReference<DateFormatSymbols> x = cachedInstances.putIfAbsent(locale, ref); |
|
679 |
if (x != null) { |
|
680 |
DateFormatSymbols y = x.get(); |
|
681 |
if (y == null) { |
|
682 |
// Replace the empty SoftReference with ref. |
|
683 |
cachedInstances.put(locale, ref); |
|
684 |
} |
|
685 |
} |
|
7003
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
686 |
} |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
687 |
|
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
688 |
private static String[] toOneBasedArray(String[] src) { |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
689 |
int len = src.length; |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
690 |
String[] dst = new String[len + 1]; |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
691 |
dst[0] = ""; |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
692 |
for (int i = 0; i < len; i++) { |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
693 |
dst[i + 1] = src[i]; |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
694 |
} |
7d8d9506b4ee
6991380: (cal) Calendar.cachedLocaleData should be transitioned from Hashtable to ConcurrentHashMap
okutsu
parents:
6497
diff
changeset
|
695 |
return dst; |
2 | 696 |
} |
697 |
||
698 |
/** |
|
699 |
* Package private: used by SimpleDateFormat |
|
700 |
* Gets the index for the given time zone ID to obtain the time zone |
|
701 |
* strings for formatting. The time zone ID is just for programmatic |
|
702 |
* lookup. NOT LOCALIZED!!! |
|
703 |
* @param ID the given time zone ID. |
|
704 |
* @return the index of the given time zone ID. Returns -1 if |
|
705 |
* the given time zone ID can't be located in the DateFormatSymbols object. |
|
706 |
* @see java.util.SimpleTimeZone |
|
707 |
*/ |
|
12549
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
708 |
final int getZoneIndex(String ID) { |
2 | 709 |
String[][] zoneStrings = getZoneStringsWrapper(); |
12549
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
710 |
|
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
711 |
/* |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
712 |
* getZoneIndex has been re-written for performance reasons. instead of |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
713 |
* traversing the zoneStrings array every time, we cache the last used zone |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
714 |
* index |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
715 |
*/ |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
716 |
if (lastZoneIndex < zoneStrings.length && ID.equals(zoneStrings[lastZoneIndex][0])) { |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
717 |
return lastZoneIndex; |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
718 |
} |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
719 |
|
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
720 |
/* slow path, search entire list */ |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
721 |
for (int index = 0; index < zoneStrings.length; index++) { |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
722 |
if (ID.equals(zoneStrings[index][0])) { |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
723 |
lastZoneIndex = index; |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
724 |
return index; |
db2c42dabfa4
7163865: Performance improvement for DateFormatSymbols.getZoneIndex(String)
youdwei
parents:
10419
diff
changeset
|
725 |
} |
2 | 726 |
} |
727 |
||
728 |
return -1; |
|
729 |
} |
|
730 |
||
731 |
/** |
|
732 |
* Wrapper method to the getZoneStrings(), which is called from inside |
|
733 |
* the java.text package and not to mutate the returned arrays, so that |
|
734 |
* it does not need to create a defensive copy. |
|
735 |
*/ |
|
736 |
final String[][] getZoneStringsWrapper() { |
|
737 |
if (isSubclassObject()) { |
|
738 |
return getZoneStrings(); |
|
739 |
} else { |
|
740 |
return getZoneStringsImpl(false); |
|
741 |
} |
|
742 |
} |
|
743 |
||
13583 | 744 |
private String[][] getZoneStringsImpl(boolean needsCopy) { |
2 | 745 |
if (zoneStrings == null) { |
746 |
zoneStrings = TimeZoneNameUtility.getZoneStrings(locale); |
|
747 |
} |
|
748 |
||
749 |
if (!needsCopy) { |
|
750 |
return zoneStrings; |
|
751 |
} |
|
752 |
||
753 |
int len = zoneStrings.length; |
|
754 |
String[][] aCopy = new String[len][]; |
|
755 |
for (int i = 0; i < len; i++) { |
|
756 |
aCopy[i] = Arrays.copyOf(zoneStrings[i], zoneStrings[i].length); |
|
757 |
} |
|
758 |
return aCopy; |
|
759 |
} |
|
760 |
||
13583 | 761 |
private boolean isSubclassObject() { |
2 | 762 |
return !getClass().getName().equals("java.text.DateFormatSymbols"); |
763 |
} |
|
764 |
||
765 |
/** |
|
766 |
* Clones all the data members from the source DateFormatSymbols to |
|
767 |
* the target DateFormatSymbols. This is only for subclasses. |
|
768 |
* @param src the source DateFormatSymbols. |
|
769 |
* @param dst the target DateFormatSymbols. |
|
770 |
*/ |
|
13583 | 771 |
private void copyMembers(DateFormatSymbols src, DateFormatSymbols dst) |
2 | 772 |
{ |
773 |
dst.eras = Arrays.copyOf(src.eras, src.eras.length); |
|
774 |
dst.months = Arrays.copyOf(src.months, src.months.length); |
|
775 |
dst.shortMonths = Arrays.copyOf(src.shortMonths, src.shortMonths.length); |
|
776 |
dst.weekdays = Arrays.copyOf(src.weekdays, src.weekdays.length); |
|
777 |
dst.shortWeekdays = Arrays.copyOf(src.shortWeekdays, src.shortWeekdays.length); |
|
778 |
dst.ampms = Arrays.copyOf(src.ampms, src.ampms.length); |
|
779 |
if (src.zoneStrings != null) { |
|
780 |
dst.zoneStrings = src.getZoneStringsImpl(true); |
|
781 |
} else { |
|
782 |
dst.zoneStrings = null; |
|
783 |
} |
|
6491
cd1bcc5057f4
4267450: (cal) API: Need public API to calculate, format and parse "year of week"
okutsu
parents:
6489
diff
changeset
|
784 |
dst.localPatternChars = src.localPatternChars; |
2 | 785 |
} |
786 |
||
787 |
/** |
|
788 |
* Write out the default serializable data, after ensuring the |
|
789 |
* <code>zoneStrings</code> field is initialized in order to make |
|
790 |
* sure the backward compatibility. |
|
791 |
* |
|
792 |
* @since 1.6 |
|
793 |
*/ |
|
794 |
private void writeObject(ObjectOutputStream stream) throws IOException { |
|
795 |
if (zoneStrings == null) { |
|
796 |
zoneStrings = TimeZoneNameUtility.getZoneStrings(locale); |
|
797 |
} |
|
798 |
stream.defaultWriteObject(); |
|
799 |
} |
|
800 |
} |