private static IImplementationTypeSelector FromMediatRHandledMessagesInternal(
ITypeSourceSelector typeSourceSelector, IEnumerable <Type> handlerTypes)
{
var handlers = ((IServiceCollectionProvider)typeSourceSelector).ServiceCollection
.Select(sd => sd.ServiceType)
.Where(t => t.IsGenericType && handlerTypes.Contains(t.GetGenericTypeDefinition()));
var integrationEventTypes = handlers
.Select(t => t.GetGenericArguments()[0]).ToList();
var selector = new ImplementationTypeSelector(typeSourceSelector, integrationEventTypes);
((IMessageTypeProvider)typeSourceSelector).RegisterTypes(selector);
return(selector);
}
public ImplementationTypeSelector(ITypeSourceSelector inner, IEnumerable <Type> types)
{
_inner = inner;
_types = types;
}
// Dependency injection for classes protected static void ScanAssemblyOf <T>(ITypeSourceSelector source, IServiceCollection services, IEnumerable <(Type LifetimeMarker, ServiceLifetime Lifetime)> markers)
/// <summary>
/// Scans the the MediatR IoC registrations for handled queries.
/// </summary>
/// <param name="typeSourceSelector">The type source selector.</param>
/// <returns></returns>
public static IImplementationTypeSelector FromMediatRHandledQueries(this ITypeSourceSelector typeSourceSelector)
=> FromMediatRHandledMessagesInternal(typeSourceSelector, new[] { queryType });
/// <summary>
/// Scans the the MediatR IoC registrations for handled commands.
/// </summary>
/// <param name="typeSourceSelector">The type source selector.</param>
/// <returns></returns>
public static IImplementationTypeSelector FromMediatRHandledCommands(this ITypeSourceSelector typeSourceSelector)
=> FromMediatRHandledMessagesInternal(typeSourceSelector, new[] { commandType });
private void ConfigureScanner(ITypeSourceSelector typeSelector)
{
typeSelector.FromAssemblyOf <ServiceRegistration>()
.AddClasses()
.AsImplementedInterfaces();
}
