| /* |
| * Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * (C) Copyright Taligent, Inc. 1996 - All Rights Reserved |
| * (C) Copyright IBM Corp. 1996 - All Rights Reserved |
| * |
| * The original version of this source code and documentation is copyrighted |
| * and owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These |
| * materials are provided under terms of a License Agreement between Taligent |
| * and Sun. This technology is protected by multiple US and International |
| * patents. This notice and attribution to Taligent may not be removed. |
| * Taligent is a registered trademark of Taligent, Inc. |
| * |
| */ |
| |
| package java.text; |
| |
| import java.io.IOException; |
| import java.io.ObjectOutputStream; |
| import java.io.Serializable; |
| import java.lang.ref.SoftReference; |
| import java.text.spi.DateFormatSymbolsProvider; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.ResourceBundle; |
| import java.util.TimeZone; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentMap; |
| import java.util.spi.LocaleServiceProvider; |
| import sun.util.LocaleServiceProviderPool; |
| import sun.util.TimeZoneNameUtility; |
| import sun.util.calendar.ZoneInfo; |
| import sun.util.resources.LocaleData; |
| |
| /** |
| * <code>DateFormatSymbols</code> is a public class for encapsulating |
| * localizable date-time formatting data, such as the names of the |
| * months, the names of the days of the week, and the time zone data. |
| * <code>DateFormat</code> and <code>SimpleDateFormat</code> both use |
| * <code>DateFormatSymbols</code> to encapsulate this information. |
| * |
| * <p> |
| * Typically you shouldn't use <code>DateFormatSymbols</code> directly. |
| * Rather, you are encouraged to create a date-time formatter with the |
| * <code>DateFormat</code> class's factory methods: <code>getTimeInstance</code>, |
| * <code>getDateInstance</code>, or <code>getDateTimeInstance</code>. |
| * These methods automatically create a <code>DateFormatSymbols</code> for |
| * the formatter so that you don't have to. After the |
| * formatter is created, you may modify its format pattern using the |
| * <code>setPattern</code> method. For more information about |
| * creating formatters using <code>DateFormat</code>'s factory methods, |
| * see {@link DateFormat}. |
| * |
| * <p> |
| * If you decide to create a date-time formatter with a specific |
| * format pattern for a specific locale, you can do so with: |
| * <blockquote> |
| * <pre> |
| * new SimpleDateFormat(aPattern, DateFormatSymbols.getInstance(aLocale)). |
| * </pre> |
| * </blockquote> |
| * |
| * <p> |
| * <code>DateFormatSymbols</code> objects are cloneable. When you obtain |
| * a <code>DateFormatSymbols</code> object, feel free to modify the |
| * date-time formatting data. For instance, you can replace the localized |
| * date-time format pattern characters with the ones that you feel easy |
| * to remember. Or you can change the representative cities |
| * to your favorite ones. |
| * |
| * <p> |
| * New <code>DateFormatSymbols</code> subclasses may be added to support |
| * <code>SimpleDateFormat</code> for date-time formatting for additional locales. |
| |
| * @see DateFormat |
| * @see SimpleDateFormat |
| * @see java.util.SimpleTimeZone |
| * @author Chen-Lieh Huang |
| */ |
| public class DateFormatSymbols implements Serializable, Cloneable { |
| |
| /** |
| * Construct a DateFormatSymbols object by loading format data from |
| * resources for the default locale. This constructor can only |
| * construct instances for the locales supported by the Java |
| * runtime environment, not for those supported by installed |
| * {@link java.text.spi.DateFormatSymbolsProvider DateFormatSymbolsProvider} |
| * implementations. For full locale coverage, use the |
| * {@link #getInstance(Locale) getInstance} method. |
| * |
| * @see #getInstance() |
| * @exception java.util.MissingResourceException |
| * if the resources for the default locale cannot be |
| * found or cannot be loaded. |
| */ |
| public DateFormatSymbols() |
| { |
| initializeData(Locale.getDefault(Locale.Category.FORMAT)); |
| } |
| |
| /** |
| * Construct a DateFormatSymbols object by loading format data from |
| * resources for the given locale. This constructor can only |
| * construct instances for the locales supported by the Java |
| * runtime environment, not for those supported by installed |
| * {@link java.text.spi.DateFormatSymbolsProvider DateFormatSymbolsProvider} |
| * implementations. For full locale coverage, use the |
| * {@link #getInstance(Locale) getInstance} method. |
| * |
| * @see #getInstance(Locale) |
| * @exception java.util.MissingResourceException |
| * if the resources for the specified locale cannot be |
| * found or cannot be loaded. |
| */ |
| public DateFormatSymbols(Locale locale) |
| { |
| initializeData(locale); |
| } |
| |
| /** |
| * Era strings. For example: "AD" and "BC". An array of 2 strings, |
| * indexed by <code>Calendar.BC</code> and <code>Calendar.AD</code>. |
| * @serial |
| */ |
| String eras[] = null; |
| |
| /** |
| * Month strings. For example: "January", "February", etc. An array |
| * of 13 strings (some calendars have 13 months), indexed by |
| * <code>Calendar.JANUARY</code>, <code>Calendar.FEBRUARY</code>, etc. |
| * @serial |
| */ |
| String months[] = null; |
| |
| /** |
| * Short month strings. For example: "Jan", "Feb", etc. An array of |
| * 13 strings (some calendars have 13 months), indexed by |
| * <code>Calendar.JANUARY</code>, <code>Calendar.FEBRUARY</code>, etc. |
| |
| * @serial |
| */ |
| String shortMonths[] = null; |
| |
| /** |
| * Weekday strings. For example: "Sunday", "Monday", etc. An array |
| * of 8 strings, indexed by <code>Calendar.SUNDAY</code>, |
| * <code>Calendar.MONDAY</code>, etc. |
| * The element <code>weekdays[0]</code> is ignored. |
| * @serial |
| */ |
| String weekdays[] = null; |
| |
| /** |
| * Short weekday strings. For example: "Sun", "Mon", etc. An array |
| * of 8 strings, indexed by <code>Calendar.SUNDAY</code>, |
| * <code>Calendar.MONDAY</code>, etc. |
| * The element <code>shortWeekdays[0]</code> is ignored. |
| * @serial |
| */ |
| String shortWeekdays[] = null; |
| |
| /** |
| * AM and PM strings. For example: "AM" and "PM". An array of |
| * 2 strings, indexed by <code>Calendar.AM</code> and |
| * <code>Calendar.PM</code>. |
| * @serial |
| */ |
| String ampms[] = null; |
| |
| /** |
| * Localized names of time zones in this locale. This is a |
| * two-dimensional array of strings of size <em>n</em> by <em>m</em>, |
| * where <em>m</em> is at least 5. Each of the <em>n</em> rows is an |
| * entry containing the localized names for a single <code>TimeZone</code>. |
| * Each such row contains (with <code>i</code> ranging from |
| * 0..<em>n</em>-1): |
| * <ul> |
| * <li><code>zoneStrings[i][0]</code> - time zone ID</li> |
| * <li><code>zoneStrings[i][1]</code> - long name of zone in standard |
| * time</li> |
| * <li><code>zoneStrings[i][2]</code> - short name of zone in |
| * standard time</li> |
| * <li><code>zoneStrings[i][3]</code> - long name of zone in daylight |
| * saving time</li> |
| * <li><code>zoneStrings[i][4]</code> - short name of zone in daylight |
| * saving time</li> |
| * </ul> |
| * The zone ID is <em>not</em> localized; it's one of the valid IDs of |
| * the {@link java.util.TimeZone TimeZone} class that are not |
| * <a href="../java/util/TimeZone.html#CustomID">custom IDs</a>. |
| * All other entries are localized names. |
| * @see java.util.TimeZone |
| * @serial |
| */ |
| String zoneStrings[][] = null; |
| |
| /** |
| * Indicates that zoneStrings is set externally with setZoneStrings() method. |
| */ |
| transient boolean isZoneStringsSet = false; |
| |
| /** |
| * Unlocalized date-time pattern characters. For example: 'y', 'd', etc. |
| * All locales use the same these unlocalized pattern characters. |
| */ |
| static final String patternChars = "GyMdkHmsSEDFwWahKzZYuX"; |
| |
| static final int PATTERN_ERA = 0; // G |
| static final int PATTERN_YEAR = 1; // y |
| static final int PATTERN_MONTH = 2; // M |
| static final int PATTERN_DAY_OF_MONTH = 3; // d |
| static final int PATTERN_HOUR_OF_DAY1 = 4; // k |
| static final int PATTERN_HOUR_OF_DAY0 = 5; // H |
| static final int PATTERN_MINUTE = 6; // m |
| static final int PATTERN_SECOND = 7; // s |
| static final int PATTERN_MILLISECOND = 8; // S |
| static final int PATTERN_DAY_OF_WEEK = 9; // E |
| static final int PATTERN_DAY_OF_YEAR = 10; // D |
| static final int PATTERN_DAY_OF_WEEK_IN_MONTH = 11; // F |
| static final int PATTERN_WEEK_OF_YEAR = 12; // w |
| static final int PATTERN_WEEK_OF_MONTH = 13; // W |
| static final int PATTERN_AM_PM = 14; // a |
| static final int PATTERN_HOUR1 = 15; // h |
| static final int PATTERN_HOUR0 = 16; // K |
| static final int PATTERN_ZONE_NAME = 17; // z |
| static final int PATTERN_ZONE_VALUE = 18; // Z |
| static final int PATTERN_WEEK_YEAR = 19; // Y |
| static final int PATTERN_ISO_DAY_OF_WEEK = 20; // u |
| static final int PATTERN_ISO_ZONE = 21; // X |
| |
| /** |
| * Localized date-time pattern characters. For example, a locale may |
| * wish to use 'u' rather than 'y' to represent years in its date format |
| * pattern strings. |
| * This string must be exactly 18 characters long, with the index of |
| * the characters described by <code>DateFormat.ERA_FIELD</code>, |
| * <code>DateFormat.YEAR_FIELD</code>, etc. Thus, if the string were |
| * "Xz...", then localized patterns would use 'X' for era and 'z' for year. |
| * @serial |
| */ |
| String localPatternChars = null; |
| |
| /** |
| * The locale which is used for initializing this DateFormatSymbols object. |
| * |
| * @since 1.6 |
| * @serial |
| */ |
| Locale locale = null; |
| |
| /* use serialVersionUID from JDK 1.1.4 for interoperability */ |
| static final long serialVersionUID = -5987973545549424702L; |
| |
| /** |
| * Returns an array of all locales for which the |
| * <code>getInstance</code> methods of this class can return |
| * localized instances. |
| * The returned array represents the union of locales supported by the |
| * Java runtime and by installed |
| * {@link java.text.spi.DateFormatSymbolsProvider DateFormatSymbolsProvider} |
| * implementations. It must contain at least a <code>Locale</code> |
| * instance equal to {@link java.util.Locale#US Locale.US}. |
| * |
| * @return An array of locales for which localized |
| * <code>DateFormatSymbols</code> instances are available. |
| * @since 1.6 |
| */ |
| public static Locale[] getAvailableLocales() { |
| LocaleServiceProviderPool pool= |
| LocaleServiceProviderPool.getPool(DateFormatSymbolsProvider.class); |
| return pool.getAvailableLocales(); |
| } |
| |
| /** |
| * Gets the <code>DateFormatSymbols</code> instance for the default |
| * locale. This method provides access to <code>DateFormatSymbols</code> |
| * instances for locales supported by the Java runtime itself as well |
| * as for those supported by installed |
| * {@link java.text.spi.DateFormatSymbolsProvider DateFormatSymbolsProvider} |
| * implementations. |
| * @return a <code>DateFormatSymbols</code> instance. |
| * @since 1.6 |
| */ |
| public static final DateFormatSymbols getInstance() { |
| return getInstance(Locale.getDefault(Locale.Category.FORMAT)); |
| } |
| |
| /** |
| * Gets the <code>DateFormatSymbols</code> instance for the specified |
| * locale. This method provides access to <code>DateFormatSymbols</code> |
| * instances for locales supported by the Java runtime itself as well |
| * as for those supported by installed |
| * {@link java.text.spi.DateFormatSymbolsProvider DateFormatSymbolsProvider} |
| * implementations. |
| * @param locale the given locale. |
| * @return a <code>DateFormatSymbols</code> instance. |
| * @exception NullPointerException if <code>locale</code> is null |
| * @since 1.6 |
| */ |
| public static final DateFormatSymbols getInstance(Locale locale) { |
| DateFormatSymbols dfs = getProviderInstance(locale); |
| if (dfs != null) { |
| return dfs; |
| } |
| return (DateFormatSymbols) getCachedInstance(locale).clone(); |
| } |
| |
| /** |
| * Returns a DateFormatSymbols provided by a provider or found in |
| * the cache. Note that this method returns a cached instance, |
| * not its clone. Therefore, the instance should never be given to |
| * an application. |
| */ |
| static final DateFormatSymbols getInstanceRef(Locale locale) { |
| DateFormatSymbols dfs = getProviderInstance(locale); |
| if (dfs != null) { |
| return dfs; |
| } |
| return getCachedInstance(locale); |
| } |
| |
| private static DateFormatSymbols getProviderInstance(Locale locale) { |
| DateFormatSymbols providersInstance = null; |
| |
| // Check whether a provider can provide an implementation that's closer |
| // to the requested locale than what the Java runtime itself can provide. |
| LocaleServiceProviderPool pool = |
| LocaleServiceProviderPool.getPool(DateFormatSymbolsProvider.class); |
| if (pool.hasProviders()) { |
| providersInstance = pool.getLocalizedObject( |
| DateFormatSymbolsGetter.INSTANCE, locale); |
| } |
| return providersInstance; |
| } |
| |
| /** |
| * Returns a cached DateFormatSymbols if it's found in the |
| * cache. Otherwise, this method returns a newly cached instance |
| * for the given locale. |
| */ |
| private static DateFormatSymbols getCachedInstance(Locale locale) { |
| SoftReference<DateFormatSymbols> ref = cachedInstances.get(locale); |
| DateFormatSymbols dfs = null; |
| if (ref == null || (dfs = ref.get()) == null) { |
| dfs = new DateFormatSymbols(locale); |
| ref = new SoftReference<DateFormatSymbols>(dfs); |
| SoftReference<DateFormatSymbols> x = cachedInstances.putIfAbsent(locale, ref); |
| if (x != null) { |
| DateFormatSymbols y = x.get(); |
| if (y != null) { |
| dfs = y; |
| } else { |
| // Replace the empty SoftReference with ref. |
| cachedInstances.put(locale, ref); |
| } |
| } |
| } |
| return dfs; |
| } |
| |
| /** |
| * Gets era strings. For example: "AD" and "BC". |
| * @return the era strings. |
| */ |
| public String[] getEras() { |
| return Arrays.copyOf(eras, eras.length); |
| } |
| |
| /** |
| * Sets era strings. For example: "AD" and "BC". |
| * @param newEras the new era strings. |
| */ |
| public void setEras(String[] newEras) { |
| eras = Arrays.copyOf(newEras, newEras.length); |
| } |
| |
| /** |
| * Gets month strings. For example: "January", "February", etc. |
| * @return the month strings. |
| */ |
| public String[] getMonths() { |
| return Arrays.copyOf(months, months.length); |
| } |
| |
| /** |
| * Sets month strings. For example: "January", "February", etc. |
| * @param newMonths the new month strings. |
| */ |
| public void setMonths(String[] newMonths) { |
| months = Arrays.copyOf(newMonths, newMonths.length); |
| } |
| |
| /** |
| * Gets short month strings. For example: "Jan", "Feb", etc. |
| * @return the short month strings. |
| */ |
| public String[] getShortMonths() { |
| return Arrays.copyOf(shortMonths, shortMonths.length); |
| } |
| |
| /** |
| * Sets short month strings. For example: "Jan", "Feb", etc. |
| * @param newShortMonths the new short month strings. |
| */ |
| public void setShortMonths(String[] newShortMonths) { |
| shortMonths = Arrays.copyOf(newShortMonths, newShortMonths.length); |
| } |
| |
| /** |
| * Gets weekday strings. For example: "Sunday", "Monday", etc. |
| * @return the weekday strings. Use <code>Calendar.SUNDAY</code>, |
| * <code>Calendar.MONDAY</code>, etc. to index the result array. |
| */ |
| public String[] getWeekdays() { |
| return Arrays.copyOf(weekdays, weekdays.length); |
| } |
| |
| /** |
| * Sets weekday strings. For example: "Sunday", "Monday", etc. |
| * @param newWeekdays the new weekday strings. The array should |
| * be indexed by <code>Calendar.SUNDAY</code>, |
| * <code>Calendar.MONDAY</code>, etc. |
| */ |
| public void setWeekdays(String[] newWeekdays) { |
| weekdays = Arrays.copyOf(newWeekdays, newWeekdays.length); |
| } |
| |
| /** |
| * Gets short weekday strings. For example: "Sun", "Mon", etc. |
| * @return the short weekday strings. Use <code>Calendar.SUNDAY</code>, |
| * <code>Calendar.MONDAY</code>, etc. to index the result array. |
| */ |
| public String[] getShortWeekdays() { |
| return Arrays.copyOf(shortWeekdays, shortWeekdays.length); |
| } |
| |
| /** |
| * Sets short weekday strings. For example: "Sun", "Mon", etc. |
| * @param newShortWeekdays the new short weekday strings. The array should |
| * be indexed by <code>Calendar.SUNDAY</code>, |
| * <code>Calendar.MONDAY</code>, etc. |
| */ |
| public void setShortWeekdays(String[] newShortWeekdays) { |
| shortWeekdays = Arrays.copyOf(newShortWeekdays, newShortWeekdays.length); |
| } |
| |
| /** |
| * Gets ampm strings. For example: "AM" and "PM". |
| * @return the ampm strings. |
| */ |
| public String[] getAmPmStrings() { |
| return Arrays.copyOf(ampms, ampms.length); |
| } |
| |
| /** |
| * Sets ampm strings. For example: "AM" and "PM". |
| * @param newAmpms the new ampm strings. |
| */ |
| public void setAmPmStrings(String[] newAmpms) { |
| ampms = Arrays.copyOf(newAmpms, newAmpms.length); |
| } |
| |
| /** |
| * Gets time zone strings. Use of this method is discouraged; use |
| * {@link java.util.TimeZone#getDisplayName() TimeZone.getDisplayName()} |
| * instead. |
| * <p> |
| * The value returned is a |
| * two-dimensional array of strings of size <em>n</em> by <em>m</em>, |
| * where <em>m</em> is at least 5. Each of the <em>n</em> rows is an |
| * entry containing the localized names for a single <code>TimeZone</code>. |
| * Each such row contains (with <code>i</code> ranging from |
| * 0..<em>n</em>-1): |
| * <ul> |
| * <li><code>zoneStrings[i][0]</code> - time zone ID</li> |
| * <li><code>zoneStrings[i][1]</code> - long name of zone in standard |
| * time</li> |
| * <li><code>zoneStrings[i][2]</code> - short name of zone in |
| * standard time</li> |
| * <li><code>zoneStrings[i][3]</code> - long name of zone in daylight |
| * saving time</li> |
| * <li><code>zoneStrings[i][4]</code> - short name of zone in daylight |
| * saving time</li> |
| * </ul> |
| * The zone ID is <em>not</em> localized; it's one of the valid IDs of |
| * the {@link java.util.TimeZone TimeZone} class that are not |
| * <a href="../util/TimeZone.html#CustomID">custom IDs</a>. |
| * All other entries are localized names. If a zone does not implement |
| * daylight saving time, the daylight saving time names should not be used. |
| * <p> |
| * If {@link #setZoneStrings(String[][]) setZoneStrings} has been called |
| * on this <code>DateFormatSymbols</code> instance, then the strings |
| * provided by that call are returned. Otherwise, the returned array |
| * contains names provided by the Java runtime and by installed |
| * {@link java.util.spi.TimeZoneNameProvider TimeZoneNameProvider} |
| * implementations. |
| * |
| * @return the time zone strings. |
| * @see #setZoneStrings(String[][]) |
| */ |
| public String[][] getZoneStrings() { |
| return getZoneStringsImpl(true); |
| } |
| |
| /** |
| * Sets time zone strings. The argument must be a |
| * two-dimensional array of strings of size <em>n</em> by <em>m</em>, |
| * where <em>m</em> is at least 5. Each of the <em>n</em> rows is an |
| * entry containing the localized names for a single <code>TimeZone</code>. |
| * Each such row contains (with <code>i</code> ranging from |
| * 0..<em>n</em>-1): |
| * <ul> |
| * <li><code>zoneStrings[i][0]</code> - time zone ID</li> |
| * <li><code>zoneStrings[i][1]</code> - long name of zone in standard |
| * time</li> |
| * <li><code>zoneStrings[i][2]</code> - short name of zone in |
| * standard time</li> |
| * <li><code>zoneStrings[i][3]</code> - long name of zone in daylight |
| * saving time</li> |
| * <li><code>zoneStrings[i][4]</code> - short name of zone in daylight |
| * saving time</li> |
| * </ul> |
| * The zone ID is <em>not</em> localized; it's one of the valid IDs of |
| * the {@link java.util.TimeZone TimeZone} class that are not |
| * <a href="../util/TimeZone.html#CustomID">custom IDs</a>. |
| * All other entries are localized names. |
| * |
| * @param newZoneStrings the new time zone strings. |
| * @exception IllegalArgumentException if the length of any row in |
| * <code>newZoneStrings</code> is less than 5 |
| * @exception NullPointerException if <code>newZoneStrings</code> is null |
| * @see #getZoneStrings() |
| */ |
| public void setZoneStrings(String[][] newZoneStrings) { |
| String[][] aCopy = new String[newZoneStrings.length][]; |
| for (int i = 0; i < newZoneStrings.length; ++i) { |
| int len = newZoneStrings[i].length; |
| if (len < 5) { |
| throw new IllegalArgumentException(); |
| } |
| aCopy[i] = Arrays.copyOf(newZoneStrings[i], len); |
| } |
| zoneStrings = aCopy; |
| isZoneStringsSet = true; |
| } |
| |
| /** |
| * Gets localized date-time pattern characters. For example: 'u', 't', etc. |
| * @return the localized date-time pattern characters. |
| */ |
| public String getLocalPatternChars() { |
| return localPatternChars; |
| } |
| |
| /** |
| * Sets localized date-time pattern characters. For example: 'u', 't', etc. |
| * @param newLocalPatternChars the new localized date-time |
| * pattern characters. |
| */ |
| public void setLocalPatternChars(String newLocalPatternChars) { |
| // Call toString() to throw an NPE in case the argument is null |
| localPatternChars = newLocalPatternChars.toString(); |
| } |
| |
| /** |
| * Overrides Cloneable |
| */ |
| public Object clone() |
| { |
| try |
| { |
| DateFormatSymbols other = (DateFormatSymbols)super.clone(); |
| copyMembers(this, other); |
| return other; |
| } catch (CloneNotSupportedException e) { |
| throw new InternalError(); |
| } |
| } |
| |
| /** |
| * Override hashCode. |
| * Generates a hash code for the DateFormatSymbols object. |
| */ |
| public int hashCode() { |
| int hashcode = 0; |
| String[][] zoneStrings = getZoneStringsWrapper(); |
| for (int index = 0; index < zoneStrings[0].length; ++index) |
| hashcode ^= zoneStrings[0][index].hashCode(); |
| return hashcode; |
| } |
| |
| /** |
| * Override equals |
| */ |
| public boolean equals(Object obj) |
| { |
| if (this == obj) return true; |
| if (obj == null || getClass() != obj.getClass()) return false; |
| DateFormatSymbols that = (DateFormatSymbols) obj; |
| return (Arrays.equals(eras, that.eras) |
| && Arrays.equals(months, that.months) |
| && Arrays.equals(shortMonths, that.shortMonths) |
| && Arrays.equals(weekdays, that.weekdays) |
| && Arrays.equals(shortWeekdays, that.shortWeekdays) |
| && Arrays.equals(ampms, that.ampms) |
| && Arrays.deepEquals(getZoneStringsWrapper(), that.getZoneStringsWrapper()) |
| && ((localPatternChars != null |
| && localPatternChars.equals(that.localPatternChars)) |
| || (localPatternChars == null |
| && that.localPatternChars == null))); |
| } |
| |
| // =======================privates=============================== |
| |
| /** |
| * Useful constant for defining time zone offsets. |
| */ |
| static final int millisPerHour = 60*60*1000; |
| |
| /** |
| * Cache to hold DateFormatSymbols instances per Locale. |
| */ |
| private static final ConcurrentMap<Locale, SoftReference<DateFormatSymbols>> cachedInstances |
| = new ConcurrentHashMap<Locale, SoftReference<DateFormatSymbols>>(3); |
| |
| private transient int lastZoneIndex = 0; |
| |
| private void initializeData(Locale desiredLocale) { |
| locale = desiredLocale; |
| |
| // Copy values of a cached instance if any. |
| SoftReference<DateFormatSymbols> ref = cachedInstances.get(locale); |
| DateFormatSymbols dfs; |
| if (ref != null && (dfs = ref.get()) != null) { |
| copyMembers(dfs, this); |
| return; |
| } |
| |
| // Initialize the fields from the ResourceBundle for locale. |
| ResourceBundle resource = LocaleData.getDateFormatData(locale); |
| |
| eras = resource.getStringArray("Eras"); |
| months = resource.getStringArray("MonthNames"); |
| shortMonths = resource.getStringArray("MonthAbbreviations"); |
| ampms = resource.getStringArray("AmPmMarkers"); |
| localPatternChars = resource.getString("DateTimePatternChars"); |
| |
| // Day of week names are stored in a 1-based array. |
| weekdays = toOneBasedArray(resource.getStringArray("DayNames")); |
| shortWeekdays = toOneBasedArray(resource.getStringArray("DayAbbreviations")); |
| } |
| |
| private static String[] toOneBasedArray(String[] src) { |
| int len = src.length; |
| String[] dst = new String[len + 1]; |
| dst[0] = ""; |
| for (int i = 0; i < len; i++) { |
| dst[i + 1] = src[i]; |
| } |
| return dst; |
| } |
| |
| /** |
| * Package private: used by SimpleDateFormat |
| * Gets the index for the given time zone ID to obtain the time zone |
| * strings for formatting. The time zone ID is just for programmatic |
| * lookup. NOT LOCALIZED!!! |
| * @param ID the given time zone ID. |
| * @return the index of the given time zone ID. Returns -1 if |
| * the given time zone ID can't be located in the DateFormatSymbols object. |
| * @see java.util.SimpleTimeZone |
| */ |
| final int getZoneIndex(String ID) { |
| String[][] zoneStrings = getZoneStringsWrapper(); |
| |
| /* |
| * getZoneIndex has been re-written for performance reasons. instead of |
| * traversing the zoneStrings array every time, we cache the last used zone |
| * index |
| */ |
| if (lastZoneIndex < zoneStrings.length && ID.equals(zoneStrings[lastZoneIndex][0])) { |
| return lastZoneIndex; |
| } |
| |
| /* slow path, search entire list */ |
| for (int index = 0; index < zoneStrings.length; index++) { |
| if (ID.equals(zoneStrings[index][0])) { |
| lastZoneIndex = index; |
| return index; |
| } |
| } |
| |
| return -1; |
| } |
| |
| /** |
| * Wrapper method to the getZoneStrings(), which is called from inside |
| * the java.text package and not to mutate the returned arrays, so that |
| * it does not need to create a defensive copy. |
| */ |
| final String[][] getZoneStringsWrapper() { |
| if (isSubclassObject()) { |
| return getZoneStrings(); |
| } else { |
| return getZoneStringsImpl(false); |
| } |
| } |
| |
| private final String[][] getZoneStringsImpl(boolean needsCopy) { |
| if (zoneStrings == null) { |
| zoneStrings = TimeZoneNameUtility.getZoneStrings(locale); |
| } |
| |
| if (!needsCopy) { |
| return zoneStrings; |
| } |
| |
| int len = zoneStrings.length; |
| String[][] aCopy = new String[len][]; |
| for (int i = 0; i < len; i++) { |
| aCopy[i] = Arrays.copyOf(zoneStrings[i], zoneStrings[i].length); |
| } |
| return aCopy; |
| } |
| |
| private final boolean isSubclassObject() { |
| return !getClass().getName().equals("java.text.DateFormatSymbols"); |
| } |
| |
| /** |
| * Clones all the data members from the source DateFormatSymbols to |
| * the target DateFormatSymbols. This is only for subclasses. |
| * @param src the source DateFormatSymbols. |
| * @param dst the target DateFormatSymbols. |
| */ |
| private final void copyMembers(DateFormatSymbols src, DateFormatSymbols dst) |
| { |
| dst.eras = Arrays.copyOf(src.eras, src.eras.length); |
| dst.months = Arrays.copyOf(src.months, src.months.length); |
| dst.shortMonths = Arrays.copyOf(src.shortMonths, src.shortMonths.length); |
| dst.weekdays = Arrays.copyOf(src.weekdays, src.weekdays.length); |
| dst.shortWeekdays = Arrays.copyOf(src.shortWeekdays, src.shortWeekdays.length); |
| dst.ampms = Arrays.copyOf(src.ampms, src.ampms.length); |
| if (src.zoneStrings != null) { |
| dst.zoneStrings = src.getZoneStringsImpl(true); |
| } else { |
| dst.zoneStrings = null; |
| } |
| dst.localPatternChars = src.localPatternChars; |
| } |
| |
| /** |
| * Write out the default serializable data, after ensuring the |
| * <code>zoneStrings</code> field is initialized in order to make |
| * sure the backward compatibility. |
| * |
| * @since 1.6 |
| */ |
| private void writeObject(ObjectOutputStream stream) throws IOException { |
| if (zoneStrings == null) { |
| zoneStrings = TimeZoneNameUtility.getZoneStrings(locale); |
| } |
| stream.defaultWriteObject(); |
| } |
| |
| /** |
| * Obtains a DateFormatSymbols instance from a DateFormatSymbolsProvider |
| * implementation. |
| */ |
| private static class DateFormatSymbolsGetter |
| implements LocaleServiceProviderPool.LocalizedObjectGetter<DateFormatSymbolsProvider, |
| DateFormatSymbols> { |
| private static final DateFormatSymbolsGetter INSTANCE = |
| new DateFormatSymbolsGetter(); |
| |
| public DateFormatSymbols getObject(DateFormatSymbolsProvider dateFormatSymbolsProvider, |
| Locale locale, |
| String key, |
| Object... params) { |
| assert params.length == 0; |
| return dateFormatSymbolsProvider.getInstance(locale); |
| } |
| } |
| } |
