void Apply(OrderPlaced @event)
{
Data.Id = @event.AggregateId;
Data.State = Placed;
Data.BillingAccountId = @event.BillingAccountId;
Data.CatalogId = @event.CatalogId;
Data.QuantityOrdered = @event.Quantity;
Data.ActivateImmediately = @event.ActivateImmediately;
Data.StartedOn = @event.ReceivedDate;
Data.IdempotencyToken = @event.IdempotencyToken;
}
public async Task Receive(OrderPlaced @event, IMessageContext context)
{
if (Data.State == Canceled)
{
return;
}
var tokenVault = (ITokenVault)context.GetService(typeof(ITokenVault));
var request = new TransferRequest(@event.AggregateId, @event.BillingAccountId, @event.CatalogId, @event.Quantity, @event.ActivateImmediately, @event.CorrelationId);
var success = await tokenVault.Transfer(request, context.CancellationToken);
if (success)
{
Record(new OrderFulfilled(Id));
MarkAsComplete();
}
else
{
// TODO: handle and reply with event when reservation cannot be satisfied; retry should be possible
await Handle(new CancelOrder( Id, Version ), context);
}
}
public async Task Handle(PlaceOrder command, IMessageContext context)
{
if (Data.IdempotencyToken == command.IdempotencyToken)
{
return;
}
var receivedDate = Now;
var afterOneDay = receivedDate.AddDays(1d);
var orderId = command.AggregateId;
var billingAccountId = command.BillingAccountId;
var catalogId = command.CatalogId;
var orderPlaced = new OrderPlaced(orderId,
billingAccountId,
catalogId,
command.Quantity,
command.ActivateImmediately,
receivedDate,
command.IdempotencyToken);
Record(orderPlaced);
await RequestTimeout(afterOneDay, new OrderTookTooLongToFulfill( orderId ), context);
}