/// <summary>
/// Gets the set of <see cref="EventHandler"/> instances associated with the specified <paramref name="e"/>.
/// </summary>
/// <param name="e">The event for which to retrieve all <see cref="EventHandler"/> instances.</param>
public IEnumerable<EventHandler> GetHandlersFor(Event e)
{
Verify.NotNull(e, nameof(e));
EventHandler[] eventHandlers;
Timeout timeout = e as Timeout;
if (timeout != null && knownSagaTimeoutHandlers.TryGetValue(timeout.SagaType, out eventHandlers))
return eventHandlers;
return knownEventHandlers.TryGetValue(e.GetType(), out eventHandlers) ? eventHandlers : Enumerable.Empty<EventHandler>();
}
/// <summary>
/// Get the associated apply method for the specified <see cref="Event"/> <paramref name="e"/> from the known <paramref name="applyMethods"/>.
/// </summary>
/// <param name="aggregate">The <see cref="Aggregate"/> instance on which the event is to be applied.</param>
/// <param name="e">The <see cref="Event"/> to be applied.</param>
/// <param name="applyMethods">The set of known apply methods for a given aggregate instance</param>
private static Action<Aggregate, Event> GetApplyMethod(Aggregate aggregate, Event e, ApplyMethodCollection applyMethods)
{
Action<Aggregate, Event> applyMethod;
Type eventType = e.GetType();
if (applyMethods.TryGetValue(eventType, out applyMethod))
return applyMethod;
if (!applyMethods.ApplyOptional)
throw new MappingException(Exceptions.AggregateApplyMethodNotFound.FormatWith(aggregate.GetType(), e.GetType()));
return VoidApplyMethod;
}