private long convertToMilis(long julianDate) {
return PersianCalendarConstants.MILLIS_JULIAN_EPOCH
+ julianDate * PersianCalendarConstants.MILLIS_OF_A_DAY
+ PersianCalendarUtils.ceil(
getTimeInMillis() - PersianCalendarConstants.MILLIS_JULIAN_EPOCH,
PersianCalendarConstants.MILLIS_OF_A_DAY);
}
/**
* set the persian date it converts PersianDate to the Julian and assigned equivalent milliseconds
* to the instance
*
* @param persianYear
* @param persianMonth
* @param persianDay
*/
public void setPersianDate(int persianYear, int persianMonth, int persianDay) {
this.persianYear = persianYear;
this.persianMonth = persianMonth;
this.persianDay = persianDay;
setTimeInMillis(
convertToMilis(
PersianCalendarUtils.persianToJulian(
this.persianYear > 0 ? this.persianYear : this.persianYear + 1,
this.persianMonth - 1,
this.persianDay)));
}
/**
* Calculate persian date from current Date and populates the corresponding fields(persianYear,
* persianMonth, persianDay)
*/
protected void calculatePersianDate() {
long julianDate =
((long) Math.floor((getTimeInMillis() - PersianCalendarConstants.MILLIS_JULIAN_EPOCH))
/ PersianCalendarConstants.MILLIS_OF_A_DAY);
long PersianRowDate = PersianCalendarUtils.julianToPersian(julianDate);
long year = PersianRowDate >> 16;
int month = (int) (PersianRowDate & 0xff00) >> 8;
int day = (int) (PersianRowDate & 0xff);
this.persianYear = (int) (year > 0 ? year : year - 1);
this.persianMonth = month;
this.persianDay = day;
}
/**
* Determines if the given year is a leap year in persian calendar. Returns true if the given year
* is a leap year.
*
* @return boolean
*/
public boolean isPersianLeapYear() {
// calculatePersianDate();
return PersianCalendarUtils.isPersianLeapYear(this.persianYear);
}
