private static MethodInfo FindAnnotatedMethod(object target, Type attribute)
{
var results = AttributeUtils.FindMethodsWithAttribute(
target.GetType(),
attribute,
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
if (results.Count != 1)
{
throw new InvalidOperationException("Multiple methods with attribute: " + attribute.ToString() + " exist on type: " + target.GetType());
}
return(results[0]);
}
public static IServiceCollection AddServiceActivators(this IServiceCollection services, Type targetClass)
{
var targetMethods = AttributeUtils.FindMethodsWithAttribute(
targetClass,
typeof(ServiceActivatorAttribute),
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
foreach (var method in targetMethods)
{
services.AddServiceActivator(method, targetClass);
}
if (targetMethods.Count > 0)
{
services.TryAddSingleton(targetClass);
}
return(services);
}