private void ApplyEvent <TIdentity, TAggregate>(
TAggregate aggregate,
AggregateConfiguration <TIdentity, TAggregate> configuration,
RecordedEventDocument document
) where TAggregate : Aggregate <TIdentity, TAggregate>
{
var applicators = configuration.Applicators;
if (!applicators.TryGetValue(document.EventType, out var applicator))
{
throw new InvalidOperationException($"Unexpected recorded event type: {document.EventType}");
}
applicator(aggregate, _serializer, document.Data ?? Array.Empty <byte>());
var recordableEvent = new RecordableEvent(document.EventNumber);
aggregate.Record(recordableEvent);
}
private RecordedEventDocument RecordedEvent(
string category,
string stream,
IPendingEvent pendingEvent,
long eventNumber
)
{
var e = new RecordedEventDocument();
e.Stream = stream;
e.EventId = pendingEvent.Id;
e.EventType = pendingEvent.Type;
e.EventNumber = eventNumber;
e.Created = UtcNow;
e.Data = pendingEvent.Data(_serializer);
e.Metadata = pendingEvent.Metadata(_metadataFactory, _serializer);
e.Category = category;
return(e);
}
private TAggregate ConstructAggregate <TIdentity, TAggregate>(
TIdentity id,
AggregateConfiguration <TIdentity, TAggregate> configuration,
RecordedEventDocument document
) where TAggregate : Aggregate <TIdentity, TAggregate>
{
var constructors = configuration.Constructors;
if (!constructors.TryGetValue(document.EventType, out var constructor))
{
throw new InvalidOperationException($"Unrecognized construction event type: {document.EventType}");
}
var aggregate = constructor(id, _serializer, document.Data ?? Array.Empty <byte>());
var recordableEvent = new RecordableEvent(document.EventNumber);
aggregate.Record(recordableEvent);
return(aggregate);
}
public RecordedEvent(RecordedEventDocument document, IJsonEventSerializer serializer, TIdentity id)
{
Id = id;
_document = document;
_serializer = serializer;
}