/**
* Initializes a {@link YearMonthDay} from the provided values.
*
* @param year The year.
* @param month The month of the year (in the range 1 through 12)
* @param day The day of the month (in the range 1 through the number of days in {@code month})
* @exception ArgumentException Thrown when the {@code year}, {@code month}, or {@code day} is
* outside of its acceptable range.
*/
public YearMonthDay(int year, int month, int day) {
if (isValidDate(year, month, day)) {
// fields are stored zero-indexed
m_year = year - 1;
m_month = month - 1;
m_day = day - 1;
} else {
throw new ArgumentException(CesiumLocalization.getYearMonthDayInvalidArgument());
}
}
/**
* Initializes a {@link YearMonthDay} from the provided values.
*
* @param year The year.
* @param dayOfYear The day of the year (in the range 1 through the number of days in the year).
*/
public YearMonthDay(int year, int dayOfYear) {
if (dayOfYear <= daysInYear(year)) {
// year is stored zero-indexed
m_year = year - 1;
int[] cumulativeDays =
isLeapYear(year) ? s_leapYearCumulativeMonthTable : s_commonYearCumulativeMonthTable;
// month is stored zero-indexed
for (m_month = 11; m_month > 0; --m_month) {
if (cumulativeDays[m_month] < dayOfYear) {
break;
}
}
// day is stored zero-indexed
m_day = dayOfYear - cumulativeDays[m_month] - 1;
if (!isValidDate(m_year + 1, m_month + 1, m_day + 1)) {
throw new ArgumentException(CesiumLocalization.getYearMonthDayInvalidArgument());
}
} else {
throw new ArgumentException(CesiumLocalization.getYearMonthDayInvalidArgument());
}
}
/**
* Initializes a {@link YearMonthDay} in the Gregorian calendar from the provided astronomical
* Julian day number, assuming the beginning of the Julian day (noon).
*
* @param astronomicalJulianDayNumber The astronomical Julian day number.
*/
@CS2JWarning("Unhandled attribute removed: SuppressMessage")
public YearMonthDay(int astronomicalJulianDayNumber) {
// Algorithm from page 604 of the Explanatory Supplement to the
// Astronomical Almanac (Seidelmann 1992).
int L = astronomicalJulianDayNumber + 68569;
int N = 4 * L / 146097;
L = L - (146097 * N + 3) / 4;
int I = (4000 * (L + 1)) / 1461001;
L = L - (1461 * I) / 4 + 31;
int J = (80 * L) / 2447;
m_day = L - (2447 * J) / 80;
L = J / 11;
m_month = J + 2 - 12 * L;
m_year = 100 * (N - 49) + I + L;
m_year--;
m_month--;
m_day--;
if (!isValidDate(m_year + 1, m_month + 1, m_day + 1)) {
throw new ArgumentOutOfRangeException(CesiumLocalization.getYearMonthDayInvalidArgument());
}
}
