public async Task <TSagaData> Get <TSagaData>(string propertyName, object propertyValue, ISynchronizedStorageSession session, ContextBag context, CancellationToken cancellationToken = default)
where TSagaData : class, IContainSagaData
{
var storageSession = (StorageSession)session;
// Saga ID needs to be calculated the same way as in SagaIdGenerator does
var sagaId = CosmosSagaIdGenerator.Generate(typeof(TSagaData), propertyName, propertyValue);
// reads need to go directly
var container = storageSession.ContainerHolder.Container;
var partitionKey = GetPartitionKey(context, sagaId);
TSagaData sagaData;
if (!pessimisticLockingEnabled)
{
(_, sagaData) = await ReadSagaData <TSagaData>(sagaId, context, container, partitionKey, cancellationToken).ConfigureAwait(false);
return(sagaData);
}
(_, sagaData) = await AcquireLease <TSagaData>(sagaId, context, container, partitionKey, cancellationToken).ConfigureAwait(false);
storageSession.AddOperation(new SagaReleaseLock(sagaData, partitionKey, serializer, context));
return(sagaData);
}
public Guid Generate(SagaIdGeneratorContext context)
{
if (context.CorrelationProperty == SagaCorrelationProperty.None)
{
throw new Exception("The CosmosDB saga persister doesn't support custom saga finders.");
}
return(CosmosSagaIdGenerator.Generate(context.SagaMetadata.SagaEntityType, context.CorrelationProperty.Name, context.CorrelationProperty.Value));
}
