public void DeleteResrvation(Guid reservationID)
{
ReservationDal reservationDal = new ReservationDal();
var entity = reservationDal.GetEntity(reservationID);
if (entity != null)
{
rwl.AcquireWriterLock(new TimeSpan(1,0,0));
var reservationsInCache = (HallCache[entity.EventID.ToString()] as List<Contracts.Reservation>);
if (reservationsInCache != null)
reservationsInCache.RemoveAll(rv => (SeatIndex.CreateSeatsString(rv.Seats) == SeatIndex.CreateSeatsString(entity.Seats)) ||
((rv.ID == entity.ID)));
reservationDal.DeleteEntity(reservationID);
rwl.ReleaseWriterLock();
}
}
public void UpdateResrvation(Contracts.Reservation newReservation)
{
ReservationDal reservationDal = new ReservationDal();
// validate
Contracts.Reservation OldRersevation = reservationDal.GetEntity(newReservation.ID);
if (OldRersevation == null)
throw new HallStateException(string.Format(StringsResource.ReservationNotFound, newReservation.ID));
var oldseats = OldRersevation.Seats;
foreach (var si in newReservation.Seats)
{
if ((si.Row < 0) || (si.Seat < 0))
throw new ArgumentException(StringsResource.InvalidSeatOrRow);
//Check that there is no other reservation for the same seats
var takenSeats = GetHallState(newReservation.EventID);
foreach (var item in newReservation.Seats)
{
if (takenSeats.Contains(item) && (!oldseats.Contains(item)))
throw new ReservationException(StringsResource.SeatAlreadyTaken);
}
}
rwl.AcquireWriterLock(new TimeSpan(1, 0, 0));
//Update the database
reservationDal.UpdateEntity(newReservation);
//2. Upfdate the cache
var cache = HallCache[newReservation.EventID.ToString()] as List<Contracts.Reservation>;
var reservationToUpdate = cache.Where(res => res.ID == newReservation.ID).FirstOrDefault();
reservationToUpdate = newReservation;
rwl.ReleaseWriterLock();
}