/// <summary>
/// Gets a list of alarm occurrences for the given recurring component, <paramref name="rc"/>
/// that occur between <paramref name="fromDate"/> and <paramref name="toDate"/>.
/// </summary>
public virtual IList <AlarmOccurrence> GetOccurrences(IRecurringComponent rc, IDateTime fromDate, IDateTime toDate)
{
Occurrences.Clear();
if (Trigger != null)
{
// If the trigger is relative, it can recur right along with
// the recurring items, otherwise, it happens once and
// only once (at a precise time).
if (Trigger.IsRelative)
{
// Ensure that "FromDate" has already been set
if (fromDate == null)
{
fromDate = rc.Start.Copy <IDateTime>();
}
var d = default(TimeSpan);
foreach (var o in rc.GetOccurrences(fromDate, toDate))
{
var dt = o.Period.StartTime;
if (Trigger.Related == TriggerRelation.End)
{
if (o.Period.EndTime != null)
{
dt = o.Period.EndTime;
if (d == default(TimeSpan))
{
d = o.Period.Duration;
}
}
// Use the "last-found" duration as a reference point
else if (d != default(TimeSpan))
{
dt = o.Period.StartTime.Add(d);
}
else
{
throw new ArgumentException(
"Alarm trigger is relative to the END of the occurrence; however, the occurence has no discernible end.");
}
}
Occurrences.Add(new AlarmOccurrence(this, dt.Add(Trigger.Duration.Value), rc));
}
}
else
{
var dt = Trigger.DateTime.Copy <IDateTime>();
dt.AssociatedObject = this;
Occurrences.Add(new AlarmOccurrence(this, dt, rc));
}
// If a REPEAT and DURATION value were specified,
// then handle those repetitions here.
AddRepeatedItems();
}
return(Occurrences);
}
/// <summary>
/// Gets a list of alarm occurrences for the given recurring component, <paramref name="rc"/>
/// that occur between <paramref name="FromDate"/> and <paramref name="ToDate"/>.
/// </summary>
virtual public IList<AlarmOccurrence> GetOccurrences(IRecurringComponent rc, IDateTime FromDate, IDateTime ToDate)
{
Occurrences.Clear();
if (Trigger != null)
{
// If the trigger is relative, it can recur right along with
// the recurring items, otherwise, it happens once and
// only once (at a precise time).
if (Trigger.IsRelative)
{
// Ensure that "FromDate" has already been set
if (FromDate == null)
FromDate = rc.Start.Copy<IDateTime>();
TimeSpan d = default(TimeSpan);
foreach (Occurrence o in rc.GetOccurrences(FromDate, ToDate))
{
IDateTime dt = o.Period.StartTime;
if (Trigger.Related == TriggerRelation.End)
{
if (o.Period.EndTime != null)
{
dt = o.Period.EndTime;
if (d == default(TimeSpan))
d = o.Period.Duration;
}
// Use the "last-found" duration as a reference point
else if (d != default(TimeSpan))
dt = o.Period.StartTime.Add(d);
else throw new ArgumentException("Alarm trigger is relative to the END of the occurrence; however, the occurence has no discernible end.");
}
Occurrences.Add(new AlarmOccurrence(this, dt.Add(Trigger.Duration.Value), rc));
}
}
else
{
IDateTime dt = Trigger.DateTime.Copy<IDateTime>();
dt.AssociatedObject = this;
Occurrences.Add(new AlarmOccurrence(this, dt, rc));
}
// If a REPEAT and DURATION value were specified,
// then handle those repetitions here.
AddRepeatedItems();
}
return Occurrences;
}
