private static ScheduledEventCollection SortEvents(ScheduledEventCollection EventList)
{
for (int r = 0; r < EventList.Count; r++)
for (int t = 0; t < EventList.Count; t++)
if (EventList[t].IsAfter(EventList[r]))
EventList.SwapPos(t, r);
return EventList;
}
/// <summary>
/// Creates a list array of ScheduledEvent objects and sorts them by the times they should execute.
/// </summary>
/// <param name="textOut">An array of ScheduleEventParams objects used to build the ScheduledEvent objects from.</param>
public ScheduleManager(ScheduledEventParamsCollection schedParams)
{
ScheduledEventCollection unsorted = new ScheduledEventCollection();
for (int i = 0; i < schedParams.Count; i++)
{
// We'll set this to true if all the stats match.
bool validEvent = false;
// Make sure we're between the Start and End dates before we start parsing anything.
if ((DateTime.Now > schedParams[i].StartDate) && (schedParams[i].EndDate.Ticks == 0 || schedParams[i].EndDate > DateTime.Now))
{
switch (schedParams[i].EventFreq)
{
case EventFrequency.daily:
if (schedParams[i].EventInterval == 1)
{
// This event occurs every day, so we'll 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 EventFrequency.weekly:
if (schedParams[i].EventInterval == 1)
{
// Event fires every week, so we just have to determine if this
// is one of the event's specified days.
if (schedParams[i].DaysOfWeek.ToLower().IndexOf(DateTime.Now.ToString("dddd").ToLower()) > -1)
{
// 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)Math.Round(Convert.ToDouble(dt.DayOfYear / 7), MidpointRounding.AwayFromZero);
int nWeekOfYear = (int)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 EventFrequency.monthly:
if (schedParams[i].MonthsOfYear.ToLower().IndexOf(Convert.ToString((MonthOfYear)DateTime.Now.Month).ToLower()) > -1)
{
// Valid month for this event. Keep parsing.
if (schedParams[i].DayOfMonth > 0)
{
// This event only fires on a specific day.
if (DateTime.Now.Day == schedParams[i].DayOfMonth)
validEvent = true;
}
else
{
// This event fires every X occurance of a specific day of the week.
if (DateTime.Now.DayOfWeek.ToString().ToLower() == schedParams[i].DaysOfWeek.ToLower())
{
// 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.
}
}
}
break;
}
}
// 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].UntilDuration != null && schedParams[i].UntilDuration.TotalSeconds > 0)
evtStop = evtTime.Add(schedParams[i].UntilDuration);
else if (schedParams[i].UntilTimeOfDay.TotalSeconds > 0)
evtStop = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, schedParams[i].UntilTimeOfDay.Hours, schedParams[i].UntilTimeOfDay.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;
if (schedParams[i].ParentParams != null)
evtName = schedParams[i].ParentParams.RollupName;
else
evtName = schedParams[i].TimeOfDay.ToString().Substring(0, 8);
unsorted.Add(new ScheduledEvent(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;
if (schedParams[i].ParentParams != null)
evtName = schedParams[i].ParentParams.RollupName + " [" + schedParams[i].TimeOfDay.ToString().Substring(0, 8) + "]";
else
evtName = schedParams[i].TimeOfDay.ToString().Substring(0, 8);
unsorted.Add(new ScheduledEvent(i, evtName, schedParams[i].TimeOfDay));
}
}
}
// Once we're all done adding all valid events to the ScheduledEventList object, we
// have to 'sort' them into the proper order. We use a simple 'bubble' sort
// to accomplish this, since there should never be so many events as to make
// this impractical.
for (int r = 0; r < unsorted.Count; r++)
for (int t = 0; t < unsorted.Count; t++)
if (unsorted[t].IsAfter(unsorted[r]))
unsorted.Move(t, r);
// Then, we Clone the (now) sorted list into our global variable reference
events = unsorted.Clone() as ScheduledEventCollection;
// 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 (ScheduledEvent 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 ScheduledEventList object into.</param>
private ScheduleManager(ScheduledEventCollection newEvents)
{
events = newEvents;
}
