public async Task <T> Get <T>(string propertyName, object propertyValue, SynchronizedStorageSession session, ContextBag context)
where T : class, IContainSagaData
{
var documentSession = session.RavenSession();
var lookupId = SagaUniqueIdentity.FormatId(typeof(T), propertyName, propertyValue);
//store it in the context to be able to optimize deletes for legacy sagas that don't have the id in metadata
context.Set(UniqueDocIdKey, lookupId);
var lookup = await documentSession
.Include("SagaDocId") //tell raven to pull the saga doc as well to save us a round-trip
.LoadAsync <SagaUniqueIdentity>(lookupId)
.ConfigureAwait(false);
if (lookup != null)
{
documentSession.Advanced.Evict(lookup);
return(lookup.SagaDocId != null
? await documentSession.LoadAsync <T>(lookup.SagaDocId).ConfigureAwait(false) //if we have a saga id we can just load it
: await Get <T>(lookup.SagaId, session, context).ConfigureAwait(false)); //if not this is a saga that was created pre 3.0.4 so we fallback to a get instead
}
return(default(T));
}
public async Task <T> Get <T>(string propertyName, object propertyValue, SynchronizedStorageSession session, ContextBag context)
where T : class, IContainSagaData
{
var documentSession = session.RavenSession();
var lookupId = SagaUniqueIdentity.FormatId(typeof(T), propertyName, propertyValue);
var lookup = await documentSession
.Include("SagaDocId") //tell raven to pull the saga doc as well to save us a round-trip
.LoadAsync <SagaUniqueIdentity>(lookupId)
.ConfigureAwait(false);
if (lookup != null)
{
documentSession.Advanced.Evict(lookup);
// If we have a saga id we can just load it, should have been included in the round-trip already
var container = await documentSession.LoadAsync <SagaDataContainer>(lookup.SagaDocId).ConfigureAwait(false);
if (container != null)
{
if (container.IdentityDocId == null)
{
container.IdentityDocId = lookupId;
}
context.Set($"{SagaContainerContextKeyPrefix}{container.Data.Id}", container);
return((T)container.Data);
}
}
return(default(T));
}
public Task <T> Get <T>(Guid sagaId, SynchronizedStorageSession session, ContextBag context)
where T : class, IContainSagaData
{
var documentSession = session.RavenSession();
return(documentSession.LoadAsync <T>(sagaId));
}
public async Task Save(IContainSagaData sagaData, SagaCorrelationProperty correlationProperty, SynchronizedStorageSession session, ContextBag context)
{
var documentSession = session.RavenSession();
if (sagaData == null)
{
return;
}
var container = new SagaDataContainer
{
Id = DocumentIdForSagaData(documentSession, sagaData),
Data = sagaData
};
if (correlationProperty == null)
{
return;
}
container.IdentityDocId = SagaUniqueIdentity.FormatId(sagaData.GetType(), correlationProperty.Name, correlationProperty.Value);
await documentSession.StoreAsync(container, string.Empty, container.Id).ConfigureAwait(false);
await documentSession.StoreAsync(new SagaUniqueIdentity
{
Id = container.IdentityDocId,
SagaId = sagaData.Id,
UniqueValue = correlationProperty.Value,
SagaDocId = container.Id
}, changeVector : string.Empty, id : container.IdentityDocId).ConfigureAwait(false);
}
public Task <OrderSagaData> FindBy(StartOrder message, SynchronizedStorageSession storageSession, ReadOnlyContextBag context)
{
var session = storageSession.RavenSession();
// if the instance is null a new saga will be automatically created if
// the Saga handles the message as IAmStartedByMessages<StartOrder>; otherwise an exception is raised.
return(session.LoadByUniqueConstraintAsync <OrderSagaData>(d => d.OrderId, message.OrderId));
}
public Task <SagaFinderSagaData> FindBy(StartSagaMessage message, SynchronizedStorageSession session, ReadOnlyContextBag options, CancellationToken cancellationToken = default)
{
if (Context.SagaId == Guid.Empty)
{
return(Task.FromResult(default(SagaFinderSagaData)));
}
return(session.RavenSession().LoadAsync <SagaFinderSagaData>(Context.SagaId.ToString(), cancellationToken));
}
public async Task <T> Get <T>(Guid sagaId, SynchronizedStorageSession session, ContextBag context)
where T : class, IContainSagaData
{
var documentSession = session.RavenSession();
var docId = DocumentIdForSagaData(documentSession, typeof(T), sagaId);
var container = await documentSession.LoadAsync <SagaDataContainer>(docId).ConfigureAwait(false);
if (container == null)
{
return(default);
public Task Update(IContainSagaData sagaData, SynchronizedStorageSession session, ContextBag context)
{
// store the schema version in case it has changed
var container = context.Get <SagaDataContainer>($"{SagaContainerContextKeyPrefix}{sagaData.Id}");
var documentSession = session.RavenSession();
documentSession.StoreSchemaVersionInMetadata(container);
// dirty tracking will do the rest for us
return(Task.CompletedTask);
}
public Task <MySagaData> FindBy(MyMessage message, SynchronizedStorageSession storageSession, ReadOnlyContextBag context)
{
// the custom finding logic here, e.g.
IAsyncDocumentSession ravenSession = storageSession.RavenSession();
MySagaData sagaData = ravenSession
.Query <MySagaData>()
.SingleOrDefault(x =>
x.SomeID == message.SomeID &&
x.SomeData == message.SomeData);
return(Task.FromResult(sagaData));
}
public Task Complete(IContainSagaData sagaData, SynchronizedStorageSession session, ContextBag context)
{
var documentSession = session.RavenSession();
var container = context.Get <SagaDataContainer>($"{SagaContainerContextKeyPrefix}{sagaData.Id}");
documentSession.Delete(container);
if (container.IdentityDocId != null)
{
documentSession.Advanced.Defer(new DeleteCommandData(container.IdentityDocId, null));
}
return(Task.CompletedTask);
}
public async Task Save(IContainSagaData sagaData, SagaCorrelationProperty correlationProperty, SynchronizedStorageSession session, ContextBag context)
{
var documentSession = session.RavenSession();
if (sagaData == null)
{
return;
}
await documentSession.StoreAsync(sagaData).ConfigureAwait(false);
if (correlationProperty == null)
{
return;
}
await CreateSagaUniqueIdentity(sagaData, correlationProperty, documentSession).ConfigureAwait(false);
}
public async Task <T> Get <T>(Guid sagaId, SynchronizedStorageSession session, ContextBag context, CancellationToken cancellationToken = default)
where T : class, IContainSagaData
{
var documentSession = session.RavenSession();
var docId = DocumentIdForSagaData(documentSession, typeof(T), sagaId);
if (enablePessimisticLocking)
{
var index = await AcquireLease(documentSession.Advanced.DocumentStore, docId, cancellationToken).ConfigureAwait(false);
// only true if we always have synchronized storage session around which is a valid assumption
context.Get <SagaDataLeaseHolder>().DocumentsIdsAndIndexes.Add((docId, index));
}
var container = await documentSession.LoadAsync <SagaDataContainer>(docId, cancellationToken).ConfigureAwait(false);
if (container == null)
{
return(default);
public async Task Complete(IContainSagaData sagaData, SynchronizedStorageSession session, ContextBag context)
{
var documentSession = session.RavenSession();
documentSession.Delete(sagaData);
string uniqueDocumentId;
RavenJToken uniqueDocumentIdMetadata;
var metadata = await documentSession.Advanced.GetMetadataForAsync(sagaData).ConfigureAwait(false);
if (metadata.TryGetValue(UniqueDocIdKey, out uniqueDocumentIdMetadata))
{
uniqueDocumentId = uniqueDocumentIdMetadata.Value <string>();
}
else
{
context.TryGet(UniqueDocIdKey, out uniqueDocumentId);
}
if (string.IsNullOrEmpty(uniqueDocumentId))
{
var uniqueDoc = await documentSession.Query <SagaUniqueIdentity>()
.SingleOrDefaultAsync(d => d.SagaId == sagaData.Id)
.ConfigureAwait(false);
if (uniqueDoc != null)
{
documentSession.Delete(uniqueDoc);
}
}
else
{
documentSession.Advanced.Defer(new DeleteCommandData
{
Key = uniqueDocumentId
});
}
}
public async Task Save(IContainSagaData sagaData, SagaCorrelationProperty correlationProperty, SynchronizedStorageSession session, ContextBag context, CancellationToken cancellationToken = default)
{
var documentSession = session.RavenSession();
if (sagaData == null)
{
return;
}
if (correlationProperty == null)
{
return;
}
var container = new SagaDataContainer
{
Id = DocumentIdForSagaData(documentSession, sagaData),
Data = sagaData,
IdentityDocId = SagaUniqueIdentity.FormatId(sagaData.GetType(), correlationProperty.Name, correlationProperty.Value),
};
await documentSession.StoreAsync(container, string.Empty, container.Id, cancellationToken).ConfigureAwait(false);
documentSession.StoreSchemaVersionInMetadata(container);
var sagaUniqueIdentity = new SagaUniqueIdentity
{
Id = container.IdentityDocId,
SagaId = sagaData.Id,
UniqueValue = correlationProperty.Value,
SagaDocId = container.Id
};
await documentSession.StoreAsync(sagaUniqueIdentity, changeVector : string.Empty, id : container.IdentityDocId, token : cancellationToken).ConfigureAwait(false);
documentSession.StoreSchemaVersionInMetadata(sagaUniqueIdentity);
}
public Task <OrderSagaData> FindBy(PaymentTransactionCompleted message, SynchronizedStorageSession storageSession, ReadOnlyContextBag context)
{
var session = storageSession.RavenSession();
return(session.LoadByUniqueConstraintAsync <OrderSagaData>(d => d.PaymentTransactionId, message.PaymentTransactionId));
}
public Task <OrderSagaData> FindBy(CompleteOrder message, SynchronizedStorageSession storageSession, ReadOnlyContextBag context)
{
IAsyncDocumentSession session = storageSession.RavenSession();
return(session.LoadByUniqueConstraintAsync <OrderSagaData>(d => d.OrderId, message.OrderId));
}