public void SendOrderStockConfirmedIntegrationEvent(Guid orderId)
{
var integrationEvent = new OrderStockConfirmedIntegrationEvent
{
OrderId = orderId
};
var serializedCommand = JsonConvert.SerializeObject(integrationEvent);
var properties = _channel.CreateBasicProperties();
properties.ContentType = "application/json";
_channel.BasicPublish(ExchangeStockConfirmed, routingKey: "",
basicProperties: properties, body: Encoding.UTF8.GetBytes(serializedCommand));
}
public void Consume(OrderStockConfirmedIntegrationEvent command)
{
var client = new MongoClient(_options.Value.ConnectionString);
var database = client.GetDatabase(_options.Value.DatabaseName);
var ordersCollection = database.GetCollection <Order>(_options.Value.CollectionName);
var order = ordersCollection.Find(o => o.OrderId == command.OrderId.ToString()).FirstOrDefault();
if (order == null)
{
throw new Exception($"Cannot find order with id {command.OrderId}");
}
Console.WriteLine("Stock is confirmed");
}
public async Task Handle(OrderStatusChangedToAwaitingValidationIntegrationEvent @event)
{
//Check item stocks.
List <ConfirmedStockItem> confirmedItems = new List <ConfirmedStockItem>();
foreach (var item in @event.StockItems)
{
var product = await _catalogContext.CatalogItems.FindAsync(item.ProductId);
confirmedItems.Add(
new ConfirmedStockItem
{
ProductId = item.ProductId, HasStock = product.AvailableStock >= item.Units
});
}
//If they are available publish an event accepting the order, if not reject the order
//var resultEvent=confirmedItems.Any(c=>!c.HasStock) ?
// (IntegrationEvent) new OrderStockRejectedIntegrationEvent(@event.OrderId) : new OrderStockConfirmedIntegrationEvent(@event.OrderId);
IntegrationEvent resultEvent = null;
if (confirmedItems.Any(c => !c.HasStock))
{
resultEvent = new OrderStockRejectedIntegrationEvent(@event.OrderId);
}
else
{
resultEvent = new OrderStockConfirmedIntegrationEvent(@event.OrderId);
foreach (var item in @event.StockItems)
{
var product = _catalogContext.CatalogItems.Find(item.ProductId);
product.AvailableStock -= item.Units;
_catalogContext.SaveChanges();
}
}
//TODO: save event to eventLog
//Thread.Sleep(2000);
_eventBus.Publish(resultEvent);
}
public async Task OrderStarted(OrderStockConfirmedIntegrationEvent @event)
{
var handler = _serviceProvider.GetRequiredService <OrderStockConfirmedIntegrationEventHandler>();
await handler.Handle(@event);
}
public async Task Handle(OrderStockConfirmedIntegrationEvent message, IMessageHandlerContext context)
{
Data.StockConfirmed = true;
await ContinueOrderingProcess(context);
}
public Task Handle(OrderStockConfirmedIntegrationEvent integrationEvent)
{
return(GetOrderingProcessActor(integrationEvent.OrderId).NotifyStockConfirmed());
}
