public MsSqlDomainEventsConsumer(InMemoryApplicationEventBus bus, DomainEventsInformation domainEventsInformation,
DbContext context)
{
_bus = bus;
_domainEventsInformation = domainEventsInformation;
_context = context;
}
private async Task ExecuteSubscribersAsync(DomainEventPrimitive domainEventPrimitive, CancellationToken cancellationToken)
{
var domainEventType = DomainEventsInformation.ForName(domainEventPrimitive.Name);
var instance = (DomainEvent)Activator.CreateInstance(domainEventType);
var result = (DomainEvent)domainEventType
.GetTypeInfo()
.GetDeclaredMethod(nameof(DomainEvent.FromPrimitives))
?.Invoke(instance, new object[]
{
domainEventPrimitive.AggregateId,
domainEventPrimitive.Body,
domainEventPrimitive.Id,
domainEventPrimitive.OccurredOn
});
await _bus.Publish(new List <DomainEvent> {
result
}, cancellationToken);
_context.Set <DomainEventPrimitive>().Remove(domainEventPrimitive);
}
/// <summary>
/// Domain event deserializer
/// </summary>
/// <param name="body"></param>
/// <returns></returns>
public DomainEvent Deserialize(string body)
{
var eventData = JsonConvert.DeserializeObject <Dictionary <string, Dictionary <string, object> > >(body);
if (eventData == default)
{
throw new ArgumentException(nameof(body));
}
var data = eventData["data"];
var attributesString = data["attributes"].ToString();
var attributes = JsonConvert.DeserializeObject <Dictionary <string, string> >(attributesString !);
if (attributes == default)
{
throw new ArgumentException(nameof(body));
}
var domainEventType = DomainEventsInformation.ForName((string)data["type"]);
var instance = ReflectionHelper.CreateInstance <DomainEvent>(domainEventType);
var domainEvent = (DomainEvent)domainEventType
.GetTypeInfo()
.GetDeclaredMethod(nameof(DomainEvent.FromPrimitives))
?.Invoke(instance, new object[]
{
attributes["id"],
attributes,
data["id"].ToString(),
data["occurred_on"].ToString()
});
return(domainEvent);
}
