public void Handle(OrderPlaced message)
{
if (this.State == ProcessStateType.NotStarted)
{
this.ProcessInfo.ConferenceId = message.ConferenceId;
this.ProcessInfo.OrderId = message.SourceId;
// Use the order id as an opaque reservation id for the seat reservation.
// It could be anything else, as long as it is deterministic from the OrderPlaced event.
this.ProcessInfo.ReservationId = message.SourceId;
this.ProcessInfo.ReservationAutoExpiration = message.ReservationAutoExpiration;
var expirationWindow = message.ReservationAutoExpiration.Subtract(DateTime.UtcNow);
if (expirationWindow > TimeSpan.Zero)
{
this.State = ProcessStateType.AwaitingReservationConfirmation;
var seatReservationCommand =
new MakeSeatReservation
{
ConferenceId = this.ProcessInfo.ConferenceId,
ReservationId = this.ProcessInfo.ReservationId,
Seats = message.Seats.ToList()
};
this.ProcessInfo.SeatReservationCommandId = seatReservationCommand.Id;
this.AddCommand(new Envelope <ICommand>(seatReservationCommand)
{
TimeToLive = expirationWindow.Add(TimeSpan.FromMinutes(1)),
});
var expirationCommand = new ExpireRegistrationProcess {
ProcessId = this.Id
};
this.ProcessInfo.ExpirationCommandId = expirationCommand.Id;
this.AddCommand(new Envelope <ICommand>(expirationCommand)
{
Delay = expirationWindow.Add(BufferTimeBeforeReleasingSeatsAfterExpiration),
});
}
else
{
this.AddCommand(new RejectOrder {
OrderId = this.ProcessInfo.OrderId
});
this.ProcessInfo.Completed = true;
}
}
else
{
if (message.ConferenceId != this.ProcessInfo.ConferenceId)
{
// throw only if not reprocessing
throw new InvalidOperationException();
}
}
}
public void Handle(ExpireRegistrationProcess command)
{
using (var context = this._contextFactory.Invoke()) {
var pm = context.Find(x => x.Id == command.ProcessId);
if (pm != null)
{
pm.Handle(command);
context.Save(pm);
}
}
}
public void Handle(OrderPlaced message)
{
if (this.State == ProcessState.NotStarted)
{
this.ConferenceId = message.ConferenceId;
this.OrderId = message.SourceId;
this.ReservationId = message.SourceId;
this.ReservationAutoExpiration = message.ReservationAutoExpiration;
var expirationWindow = message.ReservationAutoExpiration.Subtract(DateTime.UtcNow);
if (expirationWindow > TimeSpan.Zero)
{
this.State = ProcessState.AwaitingReservationConfirmation;
var seatReservationCommand = new MakeSeatReservation {
ConferenceId = this.ConferenceId,
ReservationId = this.ReservationId,
Seats = message.Seats.ToList()
};
this.SeatReservationCommandId = seatReservationCommand.Id;
this.AddCommand(new Envelope <ICommand>(seatReservationCommand)
{
TimeToLive = expirationWindow.Add(TimeSpan.FromMinutes(1))
});
var expirationCommand = new ExpireRegistrationProcess()
{
ProcessId = this.Id
};
this.ExpirationCommandId = expirationCommand.Id;
this.AddCommand(new Envelope <ICommand>(expirationCommand)
{
Delay = expirationWindow.Add(BufferTimeBeforeReleasingSeatsAfterExpiration)
});
}
else
{
this.AddCommand(new RejectOrder {
OrderId = this.OrderId
});
this.Completed = true;
}
}
else
{
if (message.ConferenceId != this.ConferenceId)
{
throw new InvalidOperationException();
}
}
}
public void Handle(ExpireRegistrationProcess command)
{
var pInfo = repository.GetBy(x => x.Id == command.ProcessId).FirstOrDefault();
if (pInfo != null)
{
var manager = new RegistrationProcessManager(pInfo);
manager.Handle(command);
context.RegisterModified(manager.ProcessInfo);
context.Commit();
}
}
public void Handle(ExpireRegistrationProcess command)
{
if (this.ExpirationCommandId == command.Id)
{
this.Completed = true;
this.AddCommand(new RejectOrder {
OrderId = this.OrderId
});
this.AddCommand(new CancelSeatReservation {
ConferenceId = this.ConferenceId,
ReservationId = this.ReservationId
});
// TODO cancel payment if any
}
// else ignore the message as it is no longer relevant (but not invalid)
}