public static void NextRun(string schedule, DateTime current, out DateTime nextRun)
{
if (schedule.Trim() == string.Empty || schedule.Trim() == Constants.TimerScheduleWhenPublished)
{
nextRun = new DateTime(3000, 1, 1);
return;
}
schedule = TrimEndAndEnsureDoubleDigits(schedule);
string[] scheduleParts = schedule.Split(' ');
scheduleType schType = scheduleType.Invalid;
List <string> hoursInSchedule;
List <string> daysInSchedule;
List <string> weekdaysInSchedule;
string ordinalInSchedule;
ValidateAndSeparateScheduleParts(scheduleParts, out schType, out hoursInSchedule, out daysInSchedule, out weekdaysInSchedule, out ordinalInSchedule);
TimeSpan ts = new TimeSpan(0, 0, 0, 0);
switch (schType)
{
case scheduleType.TimeOnly:
// daily at the same hours
CalculateNextTimeSpan(current, hoursInSchedule.ToArray(), out ts);
break;
case scheduleType.TimeDays:
// on those days of the month at those hours
CalculateNextDayOfMonthSpan(current, hoursInSchedule.ToArray(), daysInSchedule.ToArray(), out ts);
break;
case scheduleType.TimeOrdinalWeekday:
// on the nth weekday of the month
CalculateNextWeekdayOfMonthSpan(current, hoursInSchedule.ToArray(), ordinalInSchedule, weekdaysInSchedule[0], out nextRun);
return;
case scheduleType.TimeWeekdays:
// on those days of the week at those hours
CalculateNextWeekDaySpan(current, hoursInSchedule.ToArray(), weekdaysInSchedule.ToArray(), out ts);
break;
}
if (!schType.Equals(scheduleType.Invalid))
{
nextRun = current.Add(ts);
}
else
{
nextRun = new DateTime(3000, 1, 1);
}
}
public static bool ValidateSchedule(string schedule)
{
if (schedule == string.Empty)
{
return(true);
}
schedule = TrimEndAndEnsureDoubleDigits(schedule);
List <string> hoursInSchedule;
List <string> daysInSchedule;
List <string> weekdaysInSchedule;
string ordinalInSchedule;
string[] scheduleParts = schedule.Split(' ');
scheduleType schType = scheduleType.Invalid;
ValidateAndSeparateScheduleParts(scheduleParts, out schType, out hoursInSchedule, out daysInSchedule, out weekdaysInSchedule, out ordinalInSchedule);
return(!schType.Equals(scheduleType.Invalid));
}