private void _UpdateItem(IScheduledItem item)
{
Func <IScheduledItem, IScheduledItemStateObject> newStatedObjectCreator;
if (_IsItemAProgram(item))
{
newStatedObjectCreator = ScheduledItemService.Instance.CreateProgramStateObject;
}
else
{
newStatedObjectCreator = ScheduledItemService.Instance.CreateSequenceStateObject;
}
IScheduledItemStateObject scheduledItemStateObject = _FindStateObject(item);
IScheduledItemStateObject newScheduledItemStateObject = newStatedObjectCreator(item);
if (scheduledItemStateObject == null || newScheduledItemStateObject == null)
{
return;
}
if (ScheduledItemService.Instance.ScheduledItemQualifiesForExecution(newScheduledItemStateObject))
{
_ReplaceItem(scheduledItemStateObject, newScheduledItemStateObject);
}
else
{
_RemoveItem(scheduledItemStateObject);
_AddItem(newScheduledItemStateObject);
}
}
private void _RemoveItem(IScheduledItemStateObject item)
{
if (item != null)
{
_stateMachine.SetState(item, States.CompletedState);
_stateMachine.RemoveStatedObject(item);
}
}
public void AddProgram(IScheduledItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
IScheduledItemStateObject scheduledProgram = ScheduledItemService.Instance.CreateProgramStateObject(item);
_AddItem(scheduledProgram);
}
public void AddSequence(IScheduledItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
IScheduledItemStateObject scheduledSequence = ScheduledItemService.Instance.CreateSequenceStateObject(item);
_AddItem(scheduledSequence);
}
public bool Equals(IScheduledItemStateObject other)
{
if (ReferenceEquals(null, other))
{
return(false);
}
if (ReferenceEquals(this, other))
{
return(true);
}
return(other.Id.Equals(Id));
}
public bool Equals(IScheduledItemStateObject other)
{
if(ReferenceEquals(null, other)) return false;
if(ReferenceEquals(this, other)) return true;
return other.Id.Equals(Id);
}
public bool ScheduledItemQualifiesForExecution(IScheduledItemStateObject item)
{
return DateTime.Now >= item.Start && DateTime.Now < item.End;
}
private void _ReplaceItem(IScheduledItemStateObject oldItem, IScheduledItemStateObject newItem)
{
_stateMachine.ReplaceStatedObject(oldItem, newItem);
}
private void _AddItem(IScheduledItemStateObject item)
{
_stateMachine.AddStatedObject(item, States.WaitingState);
}
public bool ScheduledItemQualifiesForExecution(IScheduledItemStateObject item)
{
return(DateTime.Now >= item.Start && DateTime.Now < item.End);
}
private void _ReplaceItem(IScheduledItemStateObject oldItem, IScheduledItemStateObject newItem)
{
_stateMachine.ReplaceStatedObject(oldItem, newItem);
}
private void _RemoveItem(IScheduledItemStateObject item)
{
if(item != null) {
_stateMachine.SetState(item, States.CompletedState);
_stateMachine.RemoveStatedObject(item);
}
}
private void _AddItem(IScheduledItemStateObject item)
{
_stateMachine.AddStatedObject(item, States.WaitingState);
}