public static IHostBuilder AddEventSubscription <TSubscription>(
this IHostBuilder builder,
Action <IEventSubscriptionBuilder> subscriptionConfigurator = null)
where TSubscription : class, IEventSubscription
{
var subscriptionBuilder = new EventSubscriptionBuilder();
subscriptionConfigurator?.Invoke(subscriptionBuilder);
builder.ConfigureServices(services =>
{
services
.AddSingleton <IEventSubscription, TSubscription>()
.AddSingleton <TSubscription>()
.AddHostedService <EventSubscriptionHostingService <TSubscription> >()
.AddSingleton(typeof(IEventSubscriptionBuilder), subscriptionBuilder)
.AddSingleton(typeof(IHandlerResolver), subscriptionBuilder);
if (subscriptionBuilder.CheckpointLoaderType != null)
{
services.AddScoped(typeof(ICheckpointLoader), subscriptionBuilder.CheckpointLoaderType);
}
else
{
services.AddSingleton(subscriptionBuilder.CheckpointLoader);
}
});
return(builder);
}
public EventSubscriptionTests() : base(false)
{
_waitHandle = new AutoResetEvent(false);
var subscriptionBuilder = new EventSubscriptionBuilder();
subscriptionBuilder.As <IEventSubscriptionBuilder>()
.On <TestCreated>()
.HandleAsync(e =>
{
_eventCounter++;
return(Task.CompletedTask);
})
.On <TestDone>()
.HandleAsync(e =>
{
_eventCounter++;
_waitHandle.Set();
return(Task.CompletedTask);
})
.RetryOnError((e, ex) => false);
ServiceCollection
.AddSingleton <IEventSubscription, NEventStoreEventSubscription>()
.AddSingleton <NEventStoreEventSubscription>()
.AddSingleton(typeof(IEventSubscriptionBuilder), subscriptionBuilder)
.AddSingleton(typeof(IHandlerResolver), subscriptionBuilder)
.AddSingleton(subscriptionBuilder.CheckpointLoader);
_eventSubscription = Services.GetRequiredService <IEventSubscription>();
_eventSubscription.StartAsync().GetAwaiter().GetResult();
}
