public static AcceptStreamMessageFilter WhenEqualToMessageType(EventHandlerModule[] modules, EventMapping mapping)
{
var acceptableEventNames = new HashSet <string>(
modules
.SelectMany(module => module.Handlers)
.Select(handler => handler.Event)
.Distinct()
.Where(mapping.HasEventName)
.Select(mapping.GetEventName)
);
return(message => mapping.HasEventType(message.Type) && acceptableEventNames.Contains(message.Type));
}
public static AcceptStreamMessageFilter WhenEqualToMessageType(ConnectedProjection <BackOfficeContext>[] projections, EventMapping mapping)
{
var acceptableEventNames = new HashSet <string>(
projections
.SelectMany(module => module.Handlers)
.Select(handler => handler.Message)
.Distinct()
.Where(envelope => envelope.IsGenericType && envelope.GetGenericTypeDefinition() == typeof(Envelope <>))
.Select(envelope => envelope.GenericTypeArguments[0])
.Distinct()
.Where(mapping.HasEventName)
.Select(mapping.GetEventName)
);
return(message => mapping.HasEventType(message.Type) && acceptableEventNames.Contains(message.Type));
}
public bool TryCreate(StreamMessage message, out object envelope)
{
envelope = _eventMapping.HasEventType(message.Type) ? Create(message) : null;
return(envelope != null);
}
