public AggregateProcessor(AggregateMetadata <T> metadata, IValueObjectProcessorFactory valueObjectProcessorFactory, IQuery query, IBulkRepository <T> repository)
{
_metadata = metadata;
_query = query;
_repository = repository;
_aggregateChangesDetector = new DataChangesDetector <T, T>(_metadata.MapSpecificationProviderForSource, _metadata.MapSpecificationProviderForTarget, _query);
_valueObjectProcessors = _metadata.Elements.OfType <IValueObjectMetadataElement>().Select(valueObjectProcessorFactory.Create).ToArray();
}
public AggregateRoot()
{
Metadata = new AggregateMetadata
{
AggregateId = String.Empty,
Exists = false,
Version = 0
};
}
/// <summary>
/// Initializes a new instance of the <see cref="Event"/> class.
/// </summary>
/// <param name="eventLogSequenceNumber">The event log sequence number of this event.</param>
/// <param name="executionContext">The execution context.</param>
/// <param name="metadata">The event metadata.</param>
/// <param name="aggregate">The aggregate metadata.</param>
/// <param name="eventHorizonMetadata">The event horizon metadata.</param>
/// <param name="content">The event content.</param>
public Event(
ulong eventLogSequenceNumber,
ExecutionContext executionContext,
EventMetadata metadata,
AggregateMetadata aggregate,
EventHorizonMetadata eventHorizonMetadata,
BsonDocument content)
{
EventLogSequenceNumber = eventLogSequenceNumber;
ExecutionContext = executionContext;
Metadata = metadata;
Aggregate = aggregate;
EventHorizon = eventHorizonMetadata;
Content = content;
}
/// <inheritdoc />
public IEnumerable <Events.Event> ToEvents(Commit commit)
{
var eventsInCommit = commit.Events.ToArray();
var aggregateEventsInCommit = commit.AggregateEvents.ToArray();
if (eventsInCommit.Length == 0 && aggregateEventsInCommit.Length == 0)
{
return(Enumerable.Empty <Events.Event>());
}
var eventsToStore = new List <MongoDB.Events.Event>();
var eventHorizonMetadata = new EventHorizonMetadata();
foreach (var committedEvents in eventsInCommit)
{
var executionContext = committedEvents.First().ExecutionContext.ToStoreRepresentation();
var aggregateMetadata = new AggregateMetadata();
eventsToStore.AddRange(committedEvents.Select(_ => new Events.Event(
_.EventLogSequenceNumber,
executionContext,
new EventMetadata(
_.Occurred.UtcDateTime,
_.EventSource,
_.Type.Id,
_.Type.Generation,
_.Public),
aggregateMetadata,
eventHorizonMetadata,
BsonDocument.Parse(_.Content))));
}
foreach (var committedEvents in aggregateEventsInCommit)
{
var executionContext = committedEvents.First().ExecutionContext.ToStoreRepresentation();
eventsToStore.AddRange(committedEvents.Select(_ => new Events.Event(
_.EventLogSequenceNumber,
executionContext,
new EventMetadata(
_.Occurred.UtcDateTime,
_.EventSource,
_.Type.Id,
_.Type.Generation,
_.Public),
new AggregateMetadata(true, _.AggregateRoot.Id, _.AggregateRoot.Generation, _.AggregateRootVersion),
eventHorizonMetadata,
BsonDocument.Parse(_.Content))));
}
return(eventsToStore);
}
/// <summary>
/// Initializes a new instance of the <see cref="StreamEvent"/> class.
/// </summary>
/// <param name="streamPosition">The position in the stream.</param>
/// <param name="partition">The partition id.</param>
/// <param name="executionContext">The execution context.</param>
/// <param name="metadata">The event metadata.</param>
/// <param name="aggregate">The aggregate metadata.</param>
/// <param name="eventHorizonMetadata">The event horizon metadata.</param>
/// <param name="content">The event content.</param>
public StreamEvent(
ulong streamPosition,
PartitionId partition,
ExecutionContext executionContext,
StreamEventMetadata metadata,
AggregateMetadata aggregate,
EventHorizonMetadata eventHorizonMetadata,
BsonDocument content)
{
StreamPosition = streamPosition;
Partition = partition;
ExecutionContext = executionContext;
Metadata = metadata;
Aggregate = aggregate;
EventHorizon = eventHorizonMetadata;
Content = content;
}
private void StoreRevision(IIdentity id, int revision)
{
lock (_syncObject)
{
if (!_loadedAggregates.ContainsKey(id))
{
_loadedAggregates[id] = new AggregateMetadata()
{
Revision = revision, Count = 1
};
}
else
{
var meta = _loadedAggregates[id];
meta.Count++;
if (meta.Revision < revision)
{
meta.Revision = revision;
}
}
}
}
public AggregateDataChangesDetectorFactory(AggregateMetadata <T, TKey> metadata, IEqualityComparerFactory equalityComparerFactory, IQuery query)
{
_metadata = metadata;
_equalityComparerFactory = equalityComparerFactory;
_query = query;
}
