/// <summary>
/// 根据当前时间计算排程执行时间
/// </summary>
/// <param name="dayPeriod"></param>
/// <param name="cycle"></param>
/// <returns></returns>
static DateTime?GetDayCycleExecuteTime(DayPeriod dayPeriod, DateTime startTime)
{
string timeFormat = "{0:HH:mm:ss}";
string strStartTime = string.Format(timeFormat, startTime);
//排程第一个时间段
//Time排序
List <TimePeriod> orderTimePeriods = dayPeriod.TimePeriods.OrderBy(t => t.StartTime).ToList();
DateTime firstTimePeriod = orderTimePeriods.First().StartTime;
foreach (TimePeriod tm in orderTimePeriods)
{
if (strStartTime.CompareTo(string.Format(timeFormat, tm.StartTime)) >= 0 &&
strStartTime.CompareTo(string.Format(timeFormat, tm.EndTime)) <= 0)
{
return(startTime);
}
else if (strStartTime.CompareTo(string.Format(timeFormat, tm.StartTime)) < 0) //判断的前提是时间段已升序排序
{
return(startTime.Date.AddHours(tm.StartTime.Hour).AddMinutes(tm.StartTime.Minute).AddSeconds(tm.StartTime.Second));
}
}
//没有找到满足条件的，从下一天
return(null);
//return startTime.AddDays(1).Date.AddHours(firstTimePeriod.Hour).AddMinutes(firstTimePeriod.Minute).AddSeconds(firstTimePeriod.Second);
}
/// <summary>
/// 计算周排程下一执行时间
/// </summary>
/// <param name="cycle"></param>
/// <param name="startTime"></param>
/// <returns></returns>
static DateTime?GetWeekCycleExecuteTime(ScheduleCycle cycle, DateTime startTime)
{
//if (cycle.WeekDays == null || cycle.WeekDays.Length == 0)
// return null;
//DateTime executeTime = GetDayCycleExecuteTime(cycle, startTime).Value;
//int matchDayOfWeek = (int)executeTime.DayOfWeek;
//int dayOfWeek = cycle.WeekDays.FirstOrDefault(t => t >= matchDayOfWeek);
//DateTime firstTimePeriod = cycle.TimePeriods.OrderBy(t => t.StartTime).First().StartTime;
//if (matchDayOfWeek == dayOfWeek)
//{
//}
//else if (matchDayOfWeek < dayOfWeek)
//{
// executeTime = executeTime.AddDays(dayOfWeek - matchDayOfWeek).Date.
// AddHours(firstTimePeriod.Hour).AddMinutes(firstTimePeriod.Minute).AddSeconds(firstTimePeriod.Second);
//}
//else //next week
//{
// int firstDayOfWeek = cycle.WeekDays.First();
// executeTime = executeTime.AddDays(7 + firstDayOfWeek - (int)executeTime.DayOfWeek).Date.
// AddHours(firstTimePeriod.Hour).AddMinutes(firstTimePeriod.Minute).AddSeconds(firstTimePeriod.Second);
//}
//return executeTime;
if (cycle.WeekDays == null || cycle.WeekDays.Length == 0)
{
return(null);
}
int matchDayOfWeek = (int)startTime.DayOfWeek;
DateTime? executeTime = null;
DayPeriod dayPeriod = cycle.DayPeriods.FirstOrDefault(t => t.DayOfWeek == matchDayOfWeek);
if (dayPeriod != null)
{
executeTime = GetDayCycleExecuteTime(dayPeriod, startTime);
}
//当天的时间不满足，获取下一天
if (executeTime == null)
{
//从下一天开始找
List <DayPeriod> dayPeriods = cycle.DayPeriods.OrderBy(t => t.DayOfWeek).ToList();
dayPeriod = dayPeriods.FirstOrDefault(t => t.DayOfWeek > matchDayOfWeek);
int addDays = 0;
if (dayPeriod != null)
{
addDays = dayPeriod.DayOfWeek - matchDayOfWeek;
}
else //滚到下一周
{
dayPeriod = dayPeriods.First();
addDays = 7 + dayPeriod.DayOfWeek - matchDayOfWeek;
}
DateTime firstTime = dayPeriod.TimePeriods.OrderBy(t => t.StartTime).First().StartTime;
executeTime = startTime.Date.AddDays(addDays).AddHours(firstTime.Hour).AddMinutes(firstTime.Millisecond).AddSeconds(firstTime.Second);
}
return(executeTime);
}
/// <summary>
/// 计算周排程下一执行时间
/// </summary>
/// <param name="cycle"></param>
/// <param name="startTime"></param>
/// <returns></returns>
static DateTime?GetMonthCycleExecuteTime(ScheduleCycle cycle, DateTime startTime)
{
//if (cycle.Days == null || cycle.Days.Length == 0 || cycle.Months == null || cycle.Months.Length == 0)
// return null;
////当前月份是否有满足条件的，没有则从下一个月开始查找
//bool hasFound = false;
//DateTime executeTime = GetDayCycleExecuteTime(cycle, startTime).Value;
//DateTime firstTimePeriod = cycle.TimePeriods.OrderBy(t => t.StartTime).First().StartTime;
//int matchMonth = executeTime.Month;
//if (cycle.Months.Contains(matchMonth))
//{
// int matchDay = executeTime.Day;
// int day = cycle.Days.FirstOrDefault(t => t >= matchDay);
// if (matchDay == day)
// {
// hasFound = true;
// }
// else if (day > matchDay)
// {
// executeTime = new DateTime(executeTime.Year, matchMonth, day,
// firstTimePeriod.Hour,
// firstTimePeriod.Minute,
// firstTimePeriod.Second);
// hasFound = true;
// }
//}
//if (!hasFound)
//{
// int month = cycle.Months.FirstOrDefault(t => t > matchMonth);
// if (month == 0) //next year
// {
// executeTime = new DateTime(executeTime.Year + 1, cycle.Months[0], cycle.Days[0],
// firstTimePeriod.Hour, firstTimePeriod.Minute, firstTimePeriod.Second);
// }
// else //
// {
// executeTime = new DateTime(executeTime.Year, month, cycle.Days[0],
// firstTimePeriod.Hour, firstTimePeriod.Minute, firstTimePeriod.Second);
// }
//}
//return executeTime;
if (cycle.Days == null || cycle.Days.Length == 0 || cycle.Months == null || cycle.Months.Length == 0)
{
return(null);
}
DateTime?executeTime = null;
int matchMonth = startTime.Month;
if (cycle.Months.Contains(matchMonth))
{
//从startTime当天开始找
int matchDay = startTime.Day;
DayPeriod dayPeriod = cycle.DayPeriods.FirstOrDefault(t => t.Day == matchDay);
if (dayPeriod != null)
{
executeTime = GetDayCycleExecuteTime(dayPeriod, startTime);
}
//没有找到符合条件的，从一天开始找
if (executeTime == null)
{
//找到
dayPeriod = cycle.DayPeriods.FirstOrDefault(t => t.Day > matchDay);
if (dayPeriod != null)
{
DateTime firstTime = dayPeriod.TimePeriods.OrderBy(t => t.StartTime).First().StartTime;
executeTime = startTime.Date.AddDays(dayPeriod.Day - matchDay).AddHours(firstTime.Hour).AddMinutes(firstTime.Minute).AddSeconds(firstTime.Second);
}
}
}
//从下一个月开始找
if (executeTime == null)
{
int year = 0;
int month = cycle.Months.FirstOrDefault(t => t > matchMonth);
if (month == 0)
{
year = 1;
month = cycle.Months.OrderBy(t => t).First();
}
int day = cycle.Days.OrderBy(t => t).First();
DateTime firstTime = cycle.DayPeriods.FirstOrDefault(t => t.Day == day).TimePeriods.OrderBy(t => t.StartTime).First().StartTime;
executeTime = new DateTime(startTime.Year + year, month, day, firstTime.Hour, firstTime.Minute, firstTime.Second);
}
return(executeTime);
}