public static DateTime GetNextDate(DateTime priorDate, string daysOfWeekGrid, HolidayCalendarEnumeration holidayCalendar, IDateOperationsProvider dateOperationsProvider)
{
DateTime retValue = DateTime.MaxValue;
DateTime initialValue = new DateTime(priorDate.Year, priorDate.Month, priorDate.Day); // Remove the time information.
// Prevent looping up to year 9999.
const int maxCounter = 3650; // A decade.
int counter = 0;
bool nextDateFound = false;
while (!nextDateFound)
{
DateTime nextDate = initialValue.AddDays(1);
if (ScheduleOperations.DayIsValidDayForRun(priorDate, daysOfWeekGrid, holidayCalendar, dateOperationsProvider))
{
retValue = nextDate;
nextDateFound = true;
}
counter++;
if (maxCounter == counter)
{
throw new ArgumentException(String.Format("Unable to find next date for date {0} after {1} days.", priorDate, maxCounter));
}
}
return retValue;
}
public static bool DayIsValidDayForRun(DateTime day, string daysOfWeekGrid, HolidayCalendarEnumeration holidayCalendarEnumeration, IDateOperationsProvider dateOperationsProvider)
{
// Assume false.
bool retValue = false;
if (DaysOfWeekGrid.TrueOnDayOfWeek(day.DayOfWeek, daysOfWeekGrid))
{
IHolidayCalendar holidayCalender = HolidayCalendarFactory.Create(holidayCalendarEnumeration);
if (dateOperationsProvider.IsBusinessDay(day, holidayCalender))
{
retValue = true;
}
}
return retValue;
}
public static IHolidayCalendar Create(HolidayCalendarEnumeration holidayCalendar)
{
IHolidayCalendar retValue = null;
switch (holidayCalendar)
{
case HolidayCalendarEnumeration.NONE:
retValue = new NoHolidaysCalendar();
break;
case HolidayCalendarEnumeration.WKN:
retValue = new WeekendHolidayCalendar();
break;
case HolidayCalendarEnumeration.USD:
retValue = new USDHolidayCalendar();
break;
default:
throw new ArgumentException(String.Format("Unhandled HolidayCalendarEnumeration: '{0}'.", holidayCalendar));
}
return retValue;
}
