| /* GENERATED SOURCE. DO NOT MODIFY. */ |
| /* |
| ******************************************************************************* |
| * Copyright (C) 2005-2011, International Business Machines Corporation and * |
| * others. All Rights Reserved. * |
| ******************************************************************************* |
| */ |
| package android.icu.util; |
| |
| import java.util.Date; |
| import java.util.Locale; |
| |
| import android.icu.util.ULocale.Category; |
| |
| /** |
| * Base class for EthiopicCalendar and CopticCalendar. |
| */ |
| abstract class CECalendar extends Calendar { |
| // jdk1.4.2 serialver |
| private static final long serialVersionUID = -999547623066414271L; |
| |
| private static final int LIMITS[][] = { |
| // Minimum Greatest Least Maximum |
| // Minimum Maximum |
| { 0, 0, 1, 1 }, // ERA |
| { 1, 1, 5000000, 5000000 }, // YEAR |
| { 0, 0, 12, 12 }, // MONTH |
| { 1, 1, 52, 53 }, // WEEK_OF_YEAR |
| {/* */}, // WEEK_OF_MONTH |
| { 1, 1, 5, 30 }, // DAY_OF_MONTH |
| { 1, 1, 365, 366 }, // DAY_OF_YEAR |
| {/* */}, // DAY_OF_WEEK |
| { -1, -1, 1, 5 }, // DAY_OF_WEEK_IN_MONTH |
| {/* */}, // AM_PM |
| {/* */}, // HOUR |
| {/* */}, // HOUR_OF_DAY |
| {/* */}, // MINUTE |
| {/* */}, // SECOND |
| {/* */}, // MILLISECOND |
| {/* */}, // ZONE_OFFSET |
| {/* */}, // DST_OFFSET |
| { -5000000, -5000000, 5000000, 5000000 }, // YEAR_WOY |
| {/* */}, // DOW_LOCAL |
| { -5000000, -5000000, 5000000, 5000000 }, // EXTENDED_YEAR |
| {/* */}, // JULIAN_DAY |
| {/* */}, // MILLISECONDS_IN_DAY |
| }; |
| |
| //------------------------------------------------------------------------- |
| // Constructors... |
| //------------------------------------------------------------------------- |
| |
| /** |
| * Constructs a default <code>CECalendar</code> using the current time |
| * in the default time zone with the default <code>FORMAT</code> locale. |
| */ |
| protected CECalendar() { |
| this(TimeZone.getDefault(), ULocale.getDefault(Category.FORMAT)); |
| } |
| |
| /** |
| * Constructs a <code>CECalendar</code> based on the current time |
| * in the given time zone with the default <code>FORMAT</code> locale. |
| * |
| * @param zone The time zone for the new calendar. |
| */ |
| protected CECalendar(TimeZone zone) { |
| this(zone, ULocale.getDefault(Category.FORMAT)); |
| } |
| |
| /** |
| * Constructs a <code>CECalendar</code> based on the current time |
| * in the default time zone with the given locale. |
| * |
| * @param aLocale The locale for the new calendar. |
| */ |
| protected CECalendar(Locale aLocale) { |
| this(TimeZone.getDefault(), aLocale); |
| } |
| |
| /** |
| * Constructs a <code>CECalendar</code> based on the current time |
| * in the default time zone with the given locale. |
| * |
| * @param locale The locale for the new calendar. |
| */ |
| protected CECalendar(ULocale locale) { |
| this(TimeZone.getDefault(), locale); |
| } |
| |
| /** |
| * Constructs a <code>CECalendar</code> based on the current time |
| * in the given time zone with the given locale. |
| * |
| * @param zone The time zone for the new calendar. |
| * |
| * @param aLocale The locale for the new calendar. |
| */ |
| protected CECalendar(TimeZone zone, Locale aLocale) { |
| super(zone, aLocale); |
| setTimeInMillis(System.currentTimeMillis()); |
| } |
| |
| /** |
| * Constructs a <code>CECalendar</code> based on the current time |
| * in the given time zone with the given locale. |
| * |
| * @param zone The time zone for the new calendar. |
| * |
| * @param locale The locale for the new calendar. |
| */ |
| protected CECalendar(TimeZone zone, ULocale locale) { |
| super(zone, locale); |
| setTimeInMillis(System.currentTimeMillis()); |
| } |
| |
| /** |
| * Constructs a <code>CECalendar</code> with the given date set |
| * in the default time zone with the default <code>FORMAT</code> locale. |
| * |
| * @param year The value used to set the calendar's {@link #YEAR YEAR} time field. |
| * |
| * @param month The value used to set the calendar's {@link #MONTH MONTH} time field. |
| * The value is 0-based. e.g., 0 for Tishri. |
| * |
| * @param date The value used to set the calendar's {@link #DATE DATE} time field. |
| */ |
| protected CECalendar(int year, int month, int date) { |
| super(TimeZone.getDefault(), ULocale.getDefault(Category.FORMAT)); |
| this.set(year, month, date); |
| } |
| |
| /** |
| * Constructs a <code>CECalendar</code> with the given date set |
| * in the default time zone with the default <code>FORMAT</code> locale. |
| * |
| * @param date The date to which the new calendar is set. |
| */ |
| protected CECalendar(Date date) { |
| super(TimeZone.getDefault(), ULocale.getDefault(Category.FORMAT)); |
| this.setTime(date); |
| } |
| |
| /** |
| * Constructs a <code>CECalendar</code> with the given date |
| * and time set for the default time zone with the default <code>FORMAT</code> locale. |
| * |
| * @param year The value used to set the calendar's {@link #YEAR YEAR} time field. |
| * @param month The value used to set the calendar's {@link #MONTH MONTH} time field. |
| * The value is 0-based. e.g., 0 for Tishri. |
| * @param date The value used to set the calendar's {@link #DATE DATE} time field. |
| * @param hour The value used to set the calendar's {@link #HOUR_OF_DAY HOUR_OF_DAY} time field. |
| * @param minute The value used to set the calendar's {@link #MINUTE MINUTE} time field. |
| * @param second The value used to set the calendar's {@link #SECOND SECOND} time field. |
| */ |
| protected CECalendar(int year, int month, int date, int hour, |
| int minute, int second) |
| { |
| super(TimeZone.getDefault(), ULocale.getDefault(Category.FORMAT)); |
| this.set(year, month, date, hour, minute, second); |
| } |
| |
| //------------------------------------------------------------------------- |
| // Calendar framework |
| //------------------------------------------------------------------------- |
| |
| /** |
| * The Coptic and Ethiopic calendars differ only in their epochs. |
| * This method must be implemented by CECalendar subclasses to |
| * return the date offset from Julian. |
| * @hide unsupported on Android |
| */ |
| abstract protected int getJDEpochOffset(); |
| |
| /** |
| * Return JD of start of given month/extended year |
| */ |
| protected int handleComputeMonthStart(int eyear, |
| int emonth, |
| boolean useMonth) { |
| return ceToJD(eyear, emonth, 0, getJDEpochOffset()); |
| } |
| |
| /** |
| * Calculate the limit for a specified type of limit and field |
| */ |
| protected int handleGetLimit(int field, int limitType) { |
| return LIMITS[field][limitType]; |
| } |
| |
| // (The following method is not called because all existing subclasses |
| // override it. |
| ///CLOVER:OFF |
| /** |
| * Return the number of days in the given month of the given extended |
| * year of this calendar system. Subclasses should override this |
| * method if they can provide a more correct or more efficient |
| * implementation than the default implementation in Calendar. |
| */ |
| protected int handleGetMonthLength(int extendedYear, int month) |
| { |
| |
| // The Ethiopian and Coptic calendars have 13 months, 12 of 30 days each and |
| // an intercalary month at the end of the year of 5 or 6 days, depending whether |
| // the year is a leap year or not. The Leap Year follows the same rules as the |
| // Julian Calendar so that the extra month always has six days in the year before |
| // a Julian Leap Year. |
| if ((month + 1) % 13 != 0) |
| { |
| // not intercalary month |
| return 30; |
| } |
| else |
| { |
| // intercalary month 5 days + possible leap day |
| return ((extendedYear % 4) / 3) + 5; |
| } |
| |
| } |
| ///CLOVER:ON |
| |
| //------------------------------------------------------------------------- |
| // Calendar framework |
| //------------------------------------------------------------------------- |
| |
| /** |
| * Convert an Coptic/Ethiopic year, month and day to a Julian day |
| * @param year the extended year |
| * @param month the month |
| * @param day the day |
| * @return Julian day |
| * @hide unsupported on Android |
| */ |
| public static int ceToJD(long year, int month, int day, int jdEpochOffset) { |
| |
| // Julian<->Ethiopic algorithms from: |
| // "Calendars in Ethiopia", Berhanu Beyene, Manfred Kudlek, International Conference |
| // of Ethiopian Studies XV, Hamburg, 2003 |
| |
| // handle month > 12, < 0 (e.g. from add/set) |
| if ( month >= 0 ) { |
| year += month/13; |
| month %= 13; |
| } else { |
| ++month; |
| year += month/13 - 1; |
| month = month%13 + 12; |
| } |
| return (int) ( |
| jdEpochOffset // difference from Julian epoch to 1,1,1 |
| + 365 * year // number of days from years |
| + floorDivide(year, 4) // extra day of leap year |
| + 30 * month // number of days from months (months are 0-based) |
| + day - 1 // number of days for present month (1 based) |
| ); |
| } |
| |
| /** |
| * Convert a Julian day to an Coptic/Ethiopic year, month and day |
| * @hide unsupported on Android |
| */ |
| public static void jdToCE(int julianDay, int jdEpochOffset, int[] fields) { |
| int c4; // number of 4 year cycle (1461 days) |
| int[] r4 = new int[1]; // remainder of 4 year cycle, always positive |
| |
| c4 = floorDivide(julianDay - jdEpochOffset, 1461, r4); |
| |
| // exteded year |
| fields[0] = 4 * c4 + (r4[0]/365 - r4[0]/1460); // 4 * <number of 4year cycle> + <years within the last cycle> |
| |
| int doy = (r4[0] == 1460) ? 365 : (r4[0] % 365); // days in present year |
| |
| // month |
| fields[1] = doy / 30; // 30 -> Coptic/Ethiopic month length up to 12th month |
| // day |
| fields[2] = (doy % 30) + 1; // 1-based days in a month |
| } |
| } |
