private ILocker GetAvailableLocker(Size size)
{
ILocker result = null;
if (size == Size.Small && SmallLockers.Count > 0)
{
result = SmallLockers.Dequeue();
}
if (result == null && size == Size.Medium && MediumLockers.Count > 0)
{
result = MediumLockers.Dequeue();
}
if (result == null && size == Size.Large && LargeLockers.Count > 0)
{
result = LargeLockers.Dequeue();
}
if (result == null && size == Size.XLarge && XLargeLockers.Count > 0)
{
result = XLargeLockers.Dequeue();
}
if (result == null)
{
throw new Exception("All lockers are full");
}
return(result);
}
public void AddLocker(ILocker locker)
{
switch (locker.Size)
{
case Size.Small:
SmallLockers.Enqueue((SmallLocker)locker);
break;
case Size.Medium:
MediumLockers.Enqueue((MediumLocker)locker);
break;
case Size.Large:
LargeLockers.Enqueue((LargeLocker)locker);
break;
case Size.XLarge:
XLargeLockers.Enqueue((XLargeLocker)locker);
break;
}
}