static Task SaveSagaWithoutCorrelationProperty(IContainSagaData sagaData, SynchronizedStorageSession session)
{
var indexStream = BuildSagaByIdStreamName(sagaData.GetType(), sagaData.Id);
var stateChangeEvent = new EventData(Guid.NewGuid(), SagaDataEventType, true, sagaData.ToJsonBytes(), new byte[0]);
return(session.AppendToStreamAsync(indexStream, ExpectedVersion.NoStream, stateChangeEvent));
}
static async Task SaveSagaWithCorrelationProperty(IContainSagaData sagaData, SagaCorrelationProperty correlationProperty, SagaPersisterAtomicOperations operations, SynchronizedStorageSession session)
{
var propertyValue = correlationProperty.Value;
var indexStream = BuildSagaByIdStreamName(sagaData.GetType(), sagaData.Id);
var dataStream = BuildSagaDataStreamName(sagaData.GetType(), propertyValue);
var stateChangeEvent = new EventData(Guid.NewGuid(), SagaDataEventType, true, sagaData.ToJsonBytes(), new byte[0]);
await operations.CreateIndex(indexStream, dataStream).ConfigureAwait(false);
await session.AppendToStreamAsync(dataStream, ExpectedVersion.NoStream, stateChangeEvent).ConfigureAwait(false);
}
/// <summary>
/// Appends an event to the collection of events to be persisted at the end of message processing.
/// </summary>
public static Task AppendViaOutbox(this SynchronizedStorageSession session, string stream, int expectedVersion, params EventData[] events)
{
var outboxSession = session as OutboxEventStoreSynchronizedStorageSession;
if (outboxSession == null)
{
throw new Exception("Atomic appends are not supported without the EventStore outbox.");
}
var links = events.Select(e => outboxSession.AddPersistenceOperation(stream, e)).ToArray();
return(session.AppendToStreamAsync(stream, expectedVersion, links));
}
public Task Update(IContainSagaData sagaData, SynchronizedStorageSession session, ContextBag context)
{
var operations = new SagaPersisterAtomicOperations(session);
var versionInfo = operations.GetSagaVersion(sagaData.Id);
var dataStream = versionInfo.StreamName;
var stateChangeEvent = new EventData(Guid.NewGuid(), SagaDataEventType, true, sagaData.ToJsonBytes(), new byte[0]);
if (session.SupportsOutbox())
{
return(session.AppendViaOutbox(dataStream, versionInfo.Version, stateChangeEvent));
}
return(session.AppendToStreamAsync(dataStream, versionInfo.Version, stateChangeEvent));
}
