private async Task HandleEvent <TEvent>(TEvent @event, ProjectionHandlerDescriptor descriptor, CancellationToken cancellationToken)
where TEvent : IEvent
{
var genericType = typeof(IHandleProjectedEvent <>).MakeGenericType(descriptor.EventType);
var genericMethod = genericType.GetMethod("HandleEvent", BindingFlags.Public);
var task = (Task)genericMethod.Invoke(this, new object[] { @event, cancellationToken });
await task.ConfigureAwait(false);
}
private ProjectionHandlerDescriptor GetDescriptorForEvent <TEvent>(TEvent @event)
{
var eventType = @event.GetType();
var projectionType = GetType();
Func <Type, ProjectionHandlerDescriptor> valueFactory = (t) =>
{
var genericInterface = typeof(IHandleProjectedEvent <>);
var genericInterfaceToFind = genericInterface.MakeGenericType(t);
var hasHandler = false;
if (projectionType.GetInterfaces().Any(b => b.Equals(genericInterfaceToFind)))
{
hasHandler = true;
}
var descriptorBuilt = new ProjectionHandlerDescriptor(t, hasHandler);
return(descriptorBuilt);
};
var descriptor = descriptorCache.GetOrAdd(eventType, valueFactory);
return(descriptor);
}