protected void ApplyCommittedEvent <TAggregateEvent>(ICommittedEvent <TAggregate, TIdentity, TAggregateEvent> committedEvent) where TAggregateEvent : class, IAggregateEvent <TAggregate, TIdentity> { var applyMethods = GetEventApplyMethods(committedEvent.AggregateEvent); applyMethods(committedEvent.AggregateEvent); Log.Info("Aggregate of Name={0}, and Id={1}; committed and applied an AggregateEvent of Type={2}.", Name, Id, typeof(TAggregateEvent).PrettyPrint()); Version++; var domainEvent = new DomainEvent <TAggregate, TIdentity, TAggregateEvent>(Id, committedEvent.AggregateEvent, committedEvent.Metadata, committedEvent.Timestamp, Version); Publish(domainEvent); ReplyIfAvailable(); if (!SnapshotStrategy.ShouldCreateSnapshot(this)) { return; } var aggregateSnapshot = CreateSnapshot(); if (aggregateSnapshot == null) { return; } _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 committedSnapshot = new CommittedSnapshot <TAggregate, TIdentity, IAggregateSnapshot <TAggregate, TIdentity> >( Id, aggregateSnapshot, snapshotMetadata, committedEvent.Timestamp, Version); SaveSnapshot(committedSnapshot); }
protected void ApplyCommittedEvent <TAggregateEvent>(ICommittedEvent <TAggregate, TIdentity, TAggregateEvent> committedEvent) where TAggregateEvent : IAggregateEvent <TAggregate, TIdentity> { var applyMethods = GetEventApplyMethods(committedEvent.AggregateEvent); applyMethods(committedEvent.AggregateEvent); Logger.Info($"[{Name}] With Id={Id} Commited and Applied [{typeof(TAggregateEvent).PrettyPrint()}]"); Version++; var domainEvent = new DomainEvent <TAggregate, TIdentity, TAggregateEvent>(Id, committedEvent.AggregateEvent, committedEvent.Metadata, committedEvent.Timestamp, Version); Publish(domainEvent); ReplyIfAvailable(); if (SnapshotStrategy.ShouldCreateSnapshot(this)) { var aggregateSnapshot = CreateSnapshot(); if (aggregateSnapshot != null) { _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, committedEvent.Timestamp, Version); SaveSnapshot(commitedSnapshot); } } }
public ComittedSnapshot( TIdentity aggregateIdentity, TAggregateSnapshot aggregateSnapshot, SnapshotMetadata metadata, DateTimeOffset timestamp, long aggregateSequenceNumber) { if (aggregateSnapshot == null) { throw new ArgumentNullException(nameof(aggregateSnapshot)); } if (metadata == null) { throw new ArgumentNullException(nameof(metadata)); } if (timestamp == default(DateTimeOffset)) { throw new ArgumentNullException(nameof(timestamp)); } if (aggregateSnapshot == null) { throw new ArgumentNullException(nameof(aggregateSnapshot)); } if (aggregateIdentity == null || string.IsNullOrEmpty(aggregateIdentity.Value)) { throw new ArgumentNullException(nameof(aggregateIdentity)); } AggregateIdentity = aggregateIdentity; AggregateSequenceNumber = aggregateSequenceNumber; AggregateIdentity = aggregateIdentity; AggregateSnapshot = aggregateSnapshot; Metadata = metadata; Timestamp = timestamp; }
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); } } }