private Scheduler()
{
this._events = new ScheduleEventCollection();
this._nextEvent = -1;
}
public Scheduler(ScheduleParamsCollection schedParams)
: this()
{
this._events = new ScheduleEventCollection();
for (int i = 0; i < schedParams.Count; i++)
{
// We'll set this to true is all the values are set correctly.
bool validEvent = false;
#region Determine if event is valid for today
// Make sure we're between the Start and End dates before we even start parsing anything.
if (DateTime.Now > schedParams[i].StartDate && (schedParams[i].EndDate.Ticks == 0 | schedParams[i].EndDate > DateTime.Now))
{
switch (schedParams[i].EventReoccurance)
{
case EventOccurance.Daily:
if (schedParams[i].EventInterval == 1)
{
// This occurs every day, so set it to valid.
validEvent = true;
}
else
{
// Here's were we need to figure out if the current day is an
// even divisor of EventInterval field, based on the StartDate
// of the event.
// First thing we do is create a DateTime object equal to the
// StartDate of the event.
DateTime dt = schedParams[i].StartDate;
// We're ignoring the year in this equation, so if the StartDate's
// DayOfYear value is greater than today's DayOfYear value, we need
// to advance our DateTime object to Jan 1st.
if (dt.DayOfYear > DateTime.Now.DayOfYear)
{
dt.AddDays(Convert.ToDouble(schedParams[i].EventInterval));
}
// Now, we slide the StartDate object forward in time, by the value
// of the 'EventInterval' field until it is either greater than
// or equal to today's 'DayOfYear' value.
while (dt.DayOfYear < DateTime.Now.DayOfYear)
{
dt.AddDays(Convert.ToDouble(schedParams[i].EventInterval));
}
// If the two DateTime object's ended up with matching 'DayOfYear'
// values, then we have a winner.
if (dt.DayOfYear == DateTime.Now.DayOfYear)
{
validEvent = true;
}
}
break;
case EventOccurance.Weekly:
if (schedParams[i].EventInterval == 1)
{
WeeklyOccurance dayOfWeek = (WeeklyOccurance)Enum.Parse(typeof(WeeklyOccurance), DateTime.Now.DayOfWeek.ToString());
// Event fires every week, so we just have to determine if this
// is one of the event's specified days.
if (schedParams[i].DaysOfWeek.HasFlag(dayOfWeek))
{
// We found 'today' in the DaysOfWeek list, so add the event.
validEvent = true;
}
}
else
{
// Again, we have to calculate if we've moved forward in time the
// proper number of weeks before firing.
DateTime dt = schedParams[i].StartDate;
int sWeekOfYear = (int)System.Math.Round(Convert.ToDouble(dt.DayOfYear / 7), MidpointRounding.AwayFromZero);
int nWeekOfYear = (int)System.Math.Round(Convert.ToDouble(DateTime.Now.DayOfYear / 7), MidpointRounding.AwayFromZero);
// If the start week is higher, we've got to 'slide' foward in time till we come
// back around to the first of the year.
if (sWeekOfYear > nWeekOfYear)
{
while (sWeekOfYear <= 52)
{
sWeekOfYear += schedParams[i].EventInterval;
}
sWeekOfYear -= 52;
}
// Now, we slide the StartDate week forward in time, until it is greater
// than or equal to the value of the current week.
while (sWeekOfYear < nWeekOfYear)
{
sWeekOfYear += schedParams[i].EventInterval;
}
// If the two are equal, then we have a winner.
if (sWeekOfYear == nWeekOfYear)
{
validEvent = true;
}
}
break;
case EventOccurance.Monthly:
MonthOfYear monOfYear = (MonthOfYear)Enum.Parse(typeof(MonthOfYear), DateTime.Now.ToString("MMMM"));
if (schedParams[i].MonthsOfYear.HasFlag(monOfYear))
{
// Valid month for this event. Keep parsing.
if (schedParams[i].EventDates != null && schedParams[i].EventDates.Contains(DateTime.Now.Day))
{
// This event only fires on specific day(s).
validEvent = true;
}
else
{
// This event fires every X occurance of a specific day of the week.
WeeklyOccurance dayOfWeek = (WeeklyOccurance)Enum.Parse(typeof(WeeklyOccurance), DateTime.Now.DayOfWeek.ToString());
if (schedParams[i].DaysOfWeek.HasFlag(dayOfWeek))
{
// Right day, now we just have to figure out if it's the correct
// occurance of that day.
// TODO :: Add code to do above here.
if (schedParams[i].EventInterval == 0)
{
validEvent = true;
}
else
{
int occCnt = 1;
DateTime tmpDate = DateTime.Now.AddDays(-1);
while (tmpDate.Day > 1)
{
if (tmpDate.DayOfWeek == DateTime.Now.DayOfWeek)
{
occCnt++;
}
tmpDate = tmpDate.AddDays(-1);
}
if (occCnt == schedParams[i].EventInterval)
{
validEvent = true;
}
}
}
}
}
break;
}
}
#endregion
#region Create Event, if valid
// If we've got a valid event schedule, we need to create the event(s).
if (validEvent)
{
if (schedParams[i].RepeatInterval.TotalSeconds > 0)
{
// Setup a repeating event.
// Start with the event's scheduled time to fire.
DateTime evtTime = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, schedParams[i].TimeOfDay.Hours, schedParams[i].TimeOfDay.Minutes, schedParams[i].TimeOfDay.Seconds);
// Then we determine the time at which the event stops repeating.
DateTime evtStop;
if (schedParams[i].RepeatUntilDuration != null && schedParams[i].RepeatUntilDuration.TotalSeconds > 0)
{
evtStop = evtTime.Add(schedParams[i].RepeatUntilDuration);
}
else if (schedParams[i].RepeatUntilTimeOfDay.TotalSeconds > 0)
{
evtStop = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, schedParams[i].RepeatUntilTimeOfDay.Hours, schedParams[i].RepeatUntilTimeOfDay.Minutes, 00);
}
else
{
evtStop = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 23, 59, 59);
}
// Now we start adding events until the evtTime value exceeds the evtStop value;
while (evtTime.Ticks <= evtStop.Ticks)
{
string evtName = schedParams[i].TimeOfDay.ToString().Substring(0, 8);
this._events.Add(new ScheduleEvent(i, evtName, evtTime.TimeOfDay));
#region Debug Output
#if VERBOSE
Console.WriteLine("New Event @: {0}", evtTime);
#endif
#endregion
evtTime = evtTime.Add(schedParams[i].RepeatInterval);
}
}
else
{
// This is a just a single event.
string evtName = schedParams[i].TimeOfDay.ToString().Substring(0, 8);
this._events.Add(new ScheduleEvent(i, evtName, schedParams[i].TimeOfDay));
}
}
#endregion
}
// Once we're all done adding all valid events to the "_events" collection, we have to sort them.
this._events.Sort(Collections.SortDirection.Ascending);
// After that, we need to find the first event in the list who's scheduled
// time has not already passed.
GetNextEvent();
#region Debug Output
#if VERBOSE
foreach (AosEvent evnt in events)
{
Console.WriteLine("{0}: {1} [{2}]", evnt.EventID, evnt.EventName, evnt.ScheduledTime.ToString().Substring(0, 8));
}
#endif
#endregion
}
//***************************************************************************
// Class Constructors
//
/// <summary>
/// A private constructor called internally to create a 'deep' copy of the current list object.
/// </summary>
/// <param name="newEvents">The variable to store the new AosEventList object into.</param>
private Scheduler(ScheduleEventCollection newEvents)
{
this._events = newEvents;
this._nextEvent = -1;
}