public Task PublishAsync <TEvent>(TEvent payload)
{
Ensure.NotNull(payload, "payload");
Type eventType = typeof(TEvent);
TypeResolverResult eventTypeDescriptor = eventTypeResolver.Resolve(eventType);
// Throw, because passing in context is not supported.
if (eventTypeDescriptor.IsContext)
{
throw Ensure.Exception.NotSupported("Event manager can publish event context.");
}
// Unwrap envelope, create context and invoke.
if (eventTypeDescriptor.IsEnvelope)
{
Type contextType = typeof(DefaultEventHandlerContext <>).MakeGenericType(eventTypeDescriptor.DataType);
object context = Activator.CreateInstance(contextType, payload, this, this);
// Get publishing method and make it generic for current event.
MethodInfo publishInternalMethod = typeof(DefaultEventManager).GetMethod("PublishInternalAsyc", BindingFlags.NonPublic | BindingFlags.Instance);
if (publishInternalMethod == null)
{
throw Ensure.Exception.NotImplemented("Bug in implementation of DefaultEventManager. Unnable to find publishing method.");
}
return((Task)publishInternalMethod.MakeGenericMethod(eventTypeDescriptor.DataType).Invoke(this, new object[] { context }));
}
// Create context and invoke.
return(PublishInternalAsyc <TEvent>(new DefaultEventHandlerContext <TEvent>(payload, this, this)));
}
public IEventHandlerCollection Add <TEvent>(IEventHandler <TEvent> handler)
{
Ensure.NotNull(handler, "handler");
Type eventType = typeof(TEvent);
TypeResolverResult eventTypeDescriptor = eventTypeResolver.Resolve(eventType);
if (eventTypeDescriptor.IsContext)
{
registry.AddContextHandler(eventTypeDescriptor.DataType, handler);
}
else if (eventTypeDescriptor.IsEnvelope)
{
registry.AddEnvelopeHandler(eventTypeDescriptor.DataType, handler);
}
else
{
registry.AddDirectHandler(eventTypeDescriptor.DataType, handler);
}
return(this);
}
