public Envelope <IEvent> Parse(StoredEvent storedEvent)
{
Guard.NotNull(storedEvent, nameof(storedEvent));
var eventData = storedEvent.Data;
var payloadType = typeNameRegistry.GetType(eventData.Type);
var payloadValue = serializer.Deserialize <IEvent>(eventData.Payload, payloadType);
if (payloadValue is IMigrated <IEvent> migratedEvent)
{
payloadValue = migratedEvent.Migrate();
if (ReferenceEquals(migratedEvent, payloadValue))
{
Debug.WriteLine("Migration should return new event.");
}
}
var envelope = new Envelope <IEvent>(payloadValue, eventData.Headers);
envelope.SetEventPosition(storedEvent.EventPosition);
envelope.SetEventStreamNumber(storedEvent.EventStreamNumber);
return(envelope);
}
public void Should_set_and_get_event_number()
{
const string eventNumber = "123";
sut.SetEventPosition(eventNumber);
Assert.Equal(eventNumber, sut.Headers.EventPosition());
Assert.Equal(eventNumber, sut.Headers["EventNumber"].ToString());
}
public void Should_serialize_and_deserialize_envelope()
{
var commitId = Guid.NewGuid();
var inputEvent = new Envelope <MyEvent>(new MyEvent {
MyProperty = "My-Property"
});
inputEvent.SetAggregateId(Guid.NewGuid());
inputEvent.SetCommitId(commitId);
inputEvent.SetEventId(Guid.NewGuid());
inputEvent.SetEventPosition("1");
inputEvent.SetEventStreamNumber(1);
inputEvent.SetTimestamp(SystemClock.Instance.GetCurrentInstant());
var eventData = sut.ToEventData(inputEvent.To <IEvent>(), commitId);
var outputEvent = sut.Parse(eventData).To <MyEvent>();
AssertHeaders(inputEvent.Headers, outputEvent.Headers);
AssertPayload(inputEvent, outputEvent);
}
