private static async Task SendToInstance <T>(SagaQueryConsumeContext <TSaga, T> context,
ISagaPolicy <TSaga, T> policy, TSaga instance,
IPipe <SagaConsumeContext <TSaga, T> > next, IAsyncDocumentSession session)
where T : class
{
try
{
if (_log.IsDebugEnabled)
{
_log.DebugFormat("SAGA:{0}:{1} Used {2}", TypeMetadataCache <TSaga> .ShortName,
instance.CorrelationId,
TypeMetadataCache <T> .ShortName);
}
var sagaConsumeContext = new RavenDbSagaConsumeContext <TSaga, T>(session, context, instance);
await policy.Existing(sagaConsumeContext, next).ConfigureAwait(false);
}
catch (SagaException)
{
throw;
}
catch (Exception ex)
{
throw new SagaException(ex.Message, typeof(TSaga), typeof(T), instance.CorrelationId, ex);
}
}
public async Task Send(SagaConsumeContext <TSaga, TMessage> context)
{
if (_log.IsDebugEnabled)
{
_log.DebugFormat("SAGA:{0}:{1} Added {2}", TypeMetadataCache <TSaga> .ShortName,
context.Saga.CorrelationId,
TypeMetadataCache <TMessage> .ShortName);
}
SagaConsumeContext <TSaga, TMessage> proxy = new RavenDbSagaConsumeContext <TSaga, TMessage>(_session,
context, context.Saga);
await _next.Send(proxy).ConfigureAwait(false);
if (!proxy.IsCompleted)
{
await _session.StoreAsync(context.Saga, GetSagaId(_session, context.Saga));
}
}
async Task ISagaRepository <TSaga> .Send <T>(ConsumeContext <T> context, ISagaPolicy <TSaga, T> policy,
IPipe <SagaConsumeContext <TSaga, T> > next)
{
if (!context.CorrelationId.HasValue)
{
throw new SagaException("The CorrelationId was not specified", typeof(TSaga), typeof(T));
}
var sagaId = context.CorrelationId.Value;
using (var session = OpenSession())
{
var inserted = false;
TSaga instance;
if (policy.PreInsertInstance(context, out instance))
{
inserted = await PreInsertSagaInstance <T>(session, instance);
}
try
{
if (instance == null)
{
instance = await session.LoadAsync <TSaga>(ConvertToSagaId(session, sagaId))
.ConfigureAwait(false);
}
if (instance == null)
{
var missingSagaPipe = new MissingPipe <T>(session, next);
await policy.Missing(context, missingSagaPipe).ConfigureAwait(false);
}
else
{
if (_log.IsDebugEnabled)
{
_log.DebugFormat("SAGA:{0}:{1} Used {2}", TypeMetadataCache <TSaga> .ShortName,
instance.CorrelationId, TypeMetadataCache <T> .ShortName);
}
var sagaConsumeContext = new RavenDbSagaConsumeContext <TSaga, T>(session, context, instance);
await policy.Existing(sagaConsumeContext, next).ConfigureAwait(false);
if (inserted && !sagaConsumeContext.IsCompleted)
{
await session.StoreAsync(instance, GetSagaId(session, instance)).ConfigureAwait(false);
}
if (_log.IsDebugEnabled)
{
_log.DebugFormat("SAGA (Send): New saga state: {@Saga}", instance);
}
}
await session.SaveChangesAsync().ConfigureAwait(false);
}
catch (Exception ex)
{
if (_log.IsErrorEnabled)
{
_log.Error(
$"SAGA:{TypeMetadataCache<TSaga>.ShortName} Exception {TypeMetadataCache<T>.ShortName}",
ex);
}
throw;
}
}
}