public virtual CommittedEvent <TAggregate, TIdentity, TAggregateEvent> From <TAggregateEvent>(TAggregateEvent aggregateEvent, long version, IMetadata metadata = null) where TAggregateEvent : IAggregateEvent <TAggregate, TIdentity> { if (aggregateEvent == null) { throw new ArgumentNullException(nameof(aggregateEvent)); } _eventDefinitionService.Load(typeof(TAggregateEvent)); var eventDefinition = _eventDefinitionService.GetDefinition(typeof(TAggregateEvent)); var aggregateSequenceNumber = version + 1; var eventId = EventId.NewDeterministic( GuidFactories.Deterministic.Namespaces.Events, $"{Id.Value}-v{aggregateSequenceNumber}"); var now = DateTimeOffset.UtcNow; var eventMetadata = new Metadata { Timestamp = now, AggregateSequenceNumber = aggregateSequenceNumber, AggregateName = Name.Value, AggregateId = Id.Value, EventId = eventId, EventName = eventDefinition.Name, EventVersion = eventDefinition.Version }; eventMetadata.Add(MetadataKeys.TimestampEpoch, now.ToUnixTime().ToString()); if (metadata != null) { eventMetadata.AddRange(metadata); } var committedEvent = new CommittedEvent <TAggregate, TIdentity, TAggregateEvent>(Id, aggregateEvent, eventMetadata, now, Version); return(committedEvent); }
public virtual void Emit <TAggregateEvent>(TAggregateEvent aggregateEvent, IMetadata metadata = null) where TAggregateEvent : IAggregateEvent <TAggregate, TIdentity> { if (aggregateEvent == null) { throw new ArgumentNullException(nameof(aggregateEvent)); } _eventDefinitionService.Load(typeof(TAggregateEvent)); var eventDefinition = _eventDefinitionService.GetDefinition(typeof(TAggregateEvent)); var aggregateSequenceNumber = Version + 1; var eventId = EventId.NewDeterministic( GuidFactories.Deterministic.Namespaces.Events, $"{Id.Value}-v{aggregateSequenceNumber}"); var now = DateTimeOffset.UtcNow; var eventMetadata = new Metadata { Timestamp = now, AggregateSequenceNumber = aggregateSequenceNumber, AggregateName = Name.Value, AggregateId = Id.Value, EventId = eventId, EventName = eventDefinition.Name, EventVersion = eventDefinition.Version }; eventMetadata.Add(MetadataKeys.TimestampEpoch, now.ToUnixTime().ToString()); if (metadata != null) { eventMetadata.AddRange(metadata); } var committedEvent = new CommittedEvent <TAggregate, TIdentity, TAggregateEvent>(Id, aggregateEvent, eventMetadata, now, Version); Persist(committedEvent, ApplyCommittedEvents); Logger.Info($"[{Name}] With Id={Id} Commited [{typeof(TAggregateEvent).PrettyPrint()}]"); Version++; var domainEvent = new DomainEvent <TAggregate, TIdentity, TAggregateEvent>(Id, aggregateEvent, eventMetadata, now, Version); Publish(domainEvent); if (SnapshotStrategy.ShouldCreateSnapshot(this)) { var aggregateSnapshot = CreateSnapshot(); if (aggregateSnapshot != null) { var t = aggregateSnapshot.GetType(); _snapshotDefinitionService.Load(aggregateSnapshot.GetType()); var snapshotDefinition = _snapshotDefinitionService.GetDefinition(aggregateSnapshot.GetType()); var snapshotMetadata = new SnapshotMetadata { AggregateId = Id.Value, AggregateName = Name.Value, AggregateSequenceNumber = Version, SnapshotName = snapshotDefinition.Name, SnapshotVersion = snapshotDefinition.Version }; var commitedSnapshot = new ComittedSnapshot <TAggregate, TIdentity, IAggregateSnapshot <TAggregate, TIdentity> >( Id, aggregateSnapshot, snapshotMetadata, now, Version); SaveSnapshot(commitedSnapshot); } } }