| /* |
| * Copyright (c) 2000, 2011, 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. |
| */ |
| |
| package sun.util.calendar; |
| |
| import java.lang.Cloneable; |
| import java.util.Locale; |
| import java.util.TimeZone; |
| |
| /** |
| * The <code>CalendarDate</code> class represents a specific instant |
| * in time by calendar date and time fields that are multiple cycles |
| * in different time unites. The semantics of each calendar field is |
| * given by a concrete calendar system rather than this |
| * <code>CalendarDate</code> class that holds calendar field values |
| * without interpreting them. Therefore, this class can be used to |
| * represent an amount of time, such as 2 years and 3 months. |
| * |
| * <p>A <code>CalendarDate</code> instance can be created by calling |
| * the <code>newCalendarDate</code> or <code>getCalendarDate</code> |
| * methods in <code>CalendarSystem</code>. A |
| * <code>CalendarSystem</code> instance is obtained by calling one of |
| * the factory methods in <code>CalendarSystem</code>. Manipulations |
| * of calendar dates must be handled by the calendar system by which |
| * <code>CalendarDate</code> instances have been created. |
| * |
| * <p>Some calendar fields can be modified through method calls. Any |
| * modification of a calendar field brings the state of a |
| * <code>CalendarDate</code> to <I>not normalized</I>. The |
| * normalization must be performed to make all the calendar fields |
| * consistent with a calendar system. |
| * |
| * <p>The <code>protected</code> methods are intended to be used for |
| * implementing a concrete calendar system, not for general use as an |
| * API. |
| * |
| * @see CalendarSystem |
| * @author Masayoshi Okutsu |
| * @since 1.5 |
| */ |
| public abstract class CalendarDate implements Cloneable { |
| public static final int FIELD_UNDEFINED = Integer.MIN_VALUE; |
| public static final long TIME_UNDEFINED = Long.MIN_VALUE; |
| |
| private Era era; |
| private int year; |
| private int month; |
| private int dayOfMonth; |
| private int dayOfWeek = FIELD_UNDEFINED; |
| private boolean leapYear; |
| |
| private int hours; |
| private int minutes; |
| private int seconds; |
| private int millis; // fractional part of the second |
| private long fraction; // time of day value in millisecond |
| |
| private boolean normalized; |
| |
| private TimeZone zoneinfo; |
| private int zoneOffset; |
| private int daylightSaving; |
| private boolean forceStandardTime; |
| |
| private Locale locale; |
| |
| protected CalendarDate() { |
| this(TimeZone.getDefault()); |
| } |
| |
| protected CalendarDate(TimeZone zone) { |
| zoneinfo = zone; |
| } |
| |
| public Era getEra() { |
| return era; |
| } |
| |
| /** |
| * Sets the era of the date to the specified era. The default |
| * implementation of this method accepts any Era value, including |
| * <code>null</code>. |
| * |
| * @exception NullPointerException if the calendar system for this |
| * <code>CalendarDate</code> requires eras and the specified era |
| * is null. |
| * @exception IllegalArgumentException if the specified |
| * <code>era</code> is unknown to the calendar |
| * system for this <code>CalendarDate</code>. |
| */ |
| public CalendarDate setEra(Era era) { |
| if (this.era == era) { |
| return this; |
| } |
| this.era = era; |
| normalized = false; |
| return this; |
| } |
| |
| public int getYear() { |
| return year; |
| } |
| |
| public CalendarDate setYear(int year) { |
| if (this.year != year) { |
| this.year = year; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public CalendarDate addYear(int n) { |
| if (n != 0) { |
| year += n; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| /** |
| * Returns whether the year represented by this |
| * <code>CalendarDate</code> is a leap year. If leap years are |
| * not applicable to the calendar system, this method always |
| * returns <code>false</code>. |
| * |
| * <p>If this <code>CalendarDate</code> hasn't been normalized, |
| * <code>false</code> is returned. The normalization must be |
| * performed to retrieve the correct leap year information. |
| * |
| * @return <code>true</code> if this <code>CalendarDate</code> is |
| * normalized and the year of this <code>CalendarDate</code> is a |
| * leap year, or <code>false</code> otherwise. |
| * @see BaseCalendar#isGregorianLeapYear |
| */ |
| public boolean isLeapYear() { |
| return leapYear; |
| } |
| |
| void setLeapYear(boolean leapYear) { |
| this.leapYear = leapYear; |
| } |
| |
| public int getMonth() { |
| return month; |
| } |
| |
| public CalendarDate setMonth(int month) { |
| if (this.month != month) { |
| this.month = month; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public CalendarDate addMonth(int n) { |
| if (n != 0) { |
| month += n; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public int getDayOfMonth() { |
| return dayOfMonth; |
| } |
| |
| public CalendarDate setDayOfMonth(int date) { |
| if (dayOfMonth != date) { |
| dayOfMonth = date; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public CalendarDate addDayOfMonth(int n) { |
| if (n != 0) { |
| dayOfMonth += n; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| /** |
| * Returns the day of week value. If this CalendarDate is not |
| * normalized, {@link #FIELD_UNDEFINED} is returned. |
| * |
| * @return day of week or {@link #FIELD_UNDEFINED} |
| */ |
| public int getDayOfWeek() { |
| if (!isNormalized()) { |
| dayOfWeek = FIELD_UNDEFINED; |
| } |
| return dayOfWeek; |
| } |
| |
| public int getHours() { |
| return hours; |
| } |
| |
| public CalendarDate setHours(int hours) { |
| if (this.hours != hours) { |
| this.hours = hours; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public CalendarDate addHours(int n) { |
| if (n != 0) { |
| hours += n; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public int getMinutes() { |
| return minutes; |
| } |
| |
| public CalendarDate setMinutes(int minutes) { |
| if (this.minutes != minutes) { |
| this.minutes = minutes; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public CalendarDate addMinutes(int n) { |
| if (n != 0) { |
| minutes += n; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public int getSeconds() { |
| return seconds; |
| } |
| |
| public CalendarDate setSeconds(int seconds) { |
| if (this.seconds != seconds) { |
| this.seconds = seconds; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public CalendarDate addSeconds(int n) { |
| if (n != 0) { |
| seconds += n; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public int getMillis() { |
| return millis; |
| } |
| |
| public CalendarDate setMillis(int millis) { |
| if (this.millis != millis) { |
| this.millis = millis; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public CalendarDate addMillis(int n) { |
| if (n != 0) { |
| millis += n; |
| normalized = false; |
| } |
| return this; |
| } |
| |
| public long getTimeOfDay() { |
| if (!isNormalized()) { |
| return fraction = TIME_UNDEFINED; |
| } |
| return fraction; |
| } |
| |
| public CalendarDate setDate(int year, int month, int dayOfMonth) { |
| setYear(year); |
| setMonth(month); |
| setDayOfMonth(dayOfMonth); |
| return this; |
| } |
| |
| public CalendarDate addDate(int year, int month, int dayOfMonth) { |
| addYear(year); |
| addMonth(month); |
| addDayOfMonth(dayOfMonth); |
| return this; |
| } |
| |
| public CalendarDate setTimeOfDay(int hours, int minutes, int seconds, int millis) { |
| setHours(hours); |
| setMinutes(minutes); |
| setSeconds(seconds); |
| setMillis(millis); |
| return this; |
| } |
| |
| public CalendarDate addTimeOfDay(int hours, int minutes, int seconds, int millis) { |
| addHours(hours); |
| addMinutes(minutes); |
| addSeconds(seconds); |
| addMillis(millis); |
| return this; |
| } |
| |
| protected void setTimeOfDay(long fraction) { |
| this.fraction = fraction; |
| } |
| |
| public boolean isNormalized() { |
| return normalized; |
| } |
| |
| |
| public boolean isStandardTime() { |
| return forceStandardTime; |
| } |
| |
| public void setStandardTime(boolean standardTime) { |
| forceStandardTime = standardTime; |
| } |
| |
| public boolean isDaylightTime() { |
| if (isStandardTime()) { |
| return false; |
| } |
| return daylightSaving != 0; |
| } |
| |
| protected void setLocale(Locale loc) { |
| locale = loc; |
| } |
| |
| public TimeZone getZone() { |
| return zoneinfo; |
| } |
| |
| public CalendarDate setZone(TimeZone zoneinfo) { |
| this.zoneinfo = zoneinfo; |
| return this; |
| } |
| |
| /** |
| * Returns whether the specified date is the same date of this |
| * <code>CalendarDate</code>. The time of the day fields are |
| * ignored for the comparison. |
| */ |
| public boolean isSameDate(CalendarDate date) { |
| return getDayOfWeek() == date.getDayOfWeek() |
| && getMonth() == date.getMonth() |
| && getYear() == date.getYear() |
| && getEra() == date.getEra(); |
| } |
| |
| public boolean equals(Object obj) { |
| if (!(obj instanceof CalendarDate)) { |
| return false; |
| } |
| CalendarDate that = (CalendarDate) obj; |
| if (isNormalized() != that.isNormalized()) { |
| return false; |
| } |
| boolean hasZone = zoneinfo != null; |
| boolean thatHasZone = that.zoneinfo != null; |
| if (hasZone != thatHasZone) { |
| return false; |
| } |
| if (hasZone && !zoneinfo.equals(that.zoneinfo)) { |
| return false; |
| } |
| return (getEra() == that.getEra() |
| && year == that.year |
| && month == that.month |
| && dayOfMonth == that.dayOfMonth |
| && hours == that.hours |
| && minutes == that.minutes |
| && seconds == that.seconds |
| && millis == that.millis |
| && zoneOffset == that.zoneOffset); |
| } |
| |
| public int hashCode() { |
| // a pseudo (local standard) time stamp value in milliseconds |
| // from the Epoch, assuming Gregorian calendar fields. |
| long hash = ((((((long)year - 1970) * 12) + (month - 1)) * 30) + dayOfMonth) * 24; |
| hash = ((((((hash + hours) * 60) + minutes) * 60) + seconds) * 1000) + millis; |
| hash -= zoneOffset; |
| int normalized = isNormalized() ? 1 : 0; |
| int era = 0; |
| Era e = getEra(); |
| if (e != null) { |
| era = e.hashCode(); |
| } |
| int zone = zoneinfo != null ? zoneinfo.hashCode() : 0; |
| return (int) hash * (int)(hash >> 32) ^ era ^ normalized ^ zone; |
| } |
| |
| /** |
| * Returns a copy of this <code>CalendarDate</code>. The |
| * <code>TimeZone</code> object, if any, is not cloned. |
| * |
| * @return a copy of this <code>CalendarDate</code> |
| */ |
| public Object clone() { |
| try { |
| return super.clone(); |
| } catch (CloneNotSupportedException e) { |
| // this shouldn't happen |
| throw new InternalError(e); |
| } |
| } |
| |
| /** |
| * Converts calendar date values to a <code>String</code> in the |
| * following format. |
| * <pre> |
| * yyyy-MM-dd'T'HH:mm:ss.SSSz |
| * </pre> |
| * |
| * @see java.text.SimpleDateFormat |
| */ |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| CalendarUtils.sprintf0d(sb, year, 4).append('-'); |
| CalendarUtils.sprintf0d(sb, month, 2).append('-'); |
| CalendarUtils.sprintf0d(sb, dayOfMonth, 2).append('T'); |
| CalendarUtils.sprintf0d(sb, hours, 2).append(':'); |
| CalendarUtils.sprintf0d(sb, minutes, 2).append(':'); |
| CalendarUtils.sprintf0d(sb, seconds, 2).append('.'); |
| CalendarUtils.sprintf0d(sb, millis, 3); |
| if (zoneOffset == 0) { |
| sb.append('Z'); |
| } else if (zoneOffset != FIELD_UNDEFINED) { |
| int offset; |
| char sign; |
| if (zoneOffset > 0) { |
| offset = zoneOffset; |
| sign = '+'; |
| } else { |
| offset = -zoneOffset; |
| sign = '-'; |
| } |
| offset /= 60000; |
| sb.append(sign); |
| CalendarUtils.sprintf0d(sb, offset / 60, 2); |
| CalendarUtils.sprintf0d(sb, offset % 60, 2); |
| } else { |
| sb.append(" local time"); |
| } |
| return sb.toString(); |
| } |
| |
| protected void setDayOfWeek(int dayOfWeek) { |
| this.dayOfWeek = dayOfWeek; |
| } |
| |
| protected void setNormalized(boolean normalized) { |
| this.normalized = normalized; |
| } |
| |
| public int getZoneOffset() { |
| return zoneOffset; |
| } |
| |
| protected void setZoneOffset(int offset) { |
| zoneOffset = offset; |
| } |
| |
| public int getDaylightSaving() { |
| return daylightSaving; |
| } |
| |
| protected void setDaylightSaving(int daylightSaving) { |
| this.daylightSaving = daylightSaving; |
| } |
| } |