/// <summary>Ctor. </summary>
/// <param name="operator">is the operator as text</param>
/// <param name="day">is the day text</param>
public CronParameter(
CronOperatorEnum @operator,
int?day)
{
Operator = @operator;
Day = day;
}
/// <summary>Ctor. </summary>
/// <param name="operator">is the operator as text</param>
/// <param name="day">is the day</param>
/// <param name="month">is the month</param>
public CronParameter(
CronOperatorEnum @operator,
int?day,
int?month)
{
Operator = @operator;
Day = day;
Month = month;
}
private static void IncreaseAfterDayOfMonthSpecialOp(
CronOperatorEnum @operator,
int?day,
int?month,
bool week,
DateTimeEx after)
{
DateChecker checker;
if (@operator == CronOperatorEnum.LASTDAY)
{
if (!week)
{
checker = new DateCheckerLastDayOfMonth(day, month);
}
else
{
if (day == null)
{
checker = new DateCheckerLastDayOfWeek(month);
}
else
{
checker = new DateCheckerLastSpecificDayWeek(day.Value, month);
}
}
}
else if (@operator == CronOperatorEnum.LASTWEEKDAY)
{
checker = new DateCheckerLastWeekday(day, month);
}
else
{
checker = new DateCheckerMonthWeekday(day, month);
}
int dayCount = 0;
while (!checker.Fits(after))
{
after.AddUsingField(DateTimeFieldEnum.DAY_OF_MONTH, 1);
dayCount++;
if (dayCount > 10000)
{
throw new ArgumentException("Invalid crontab expression: failed to find match day");
}
}
}
/// <summary>Returns the syntax string for the operator. </summary>
/// <returns>syntax string</returns>
public static string GetSyntax(this CronOperatorEnum value)
{
switch (value)
{
case CronOperatorEnum.LASTDAY:
return("last");
case CronOperatorEnum.WEEKDAY:
return("weekday");
case CronOperatorEnum.LASTWEEKDAY:
return("lastweekday");
}
throw new ArgumentException();
}
/// <summary>Ctor. </summary>
/// <param name="cronOperator">type of cron parameter</param>
public ExprNumberSetCronParam(CronOperatorEnum cronOperator)
{
_cronOperator = cronOperator;
}
