public async Task Send <T>(ConsumeContext <T> context, ISagaPolicy <TSaga, T> policy, IPipe <SagaConsumeContext <TSaga, T> > next) where T : class
{
if (!context.CorrelationId.HasValue)
{
throw new SagaException("The CorrelationId was not specified", typeof(TSaga), typeof(T));
}
TSaga instance;
if (policy.PreInsertInstance(context, out instance))
{
await PreInsertSagaInstance(context, instance).ConfigureAwait(false);
}
if (instance == null)
{
instance = await _collection.Find(x => x.CorrelationId == context.CorrelationId).SingleOrDefaultAsync(context.CancellationToken).ConfigureAwait(false);
}
if (instance == null)
{
var missingSagaPipe = new MissingPipe <TSaga, T>(_collection, next, _mongoDbSagaConsumeContextFactory);
await policy.Missing(context, missingSagaPipe).ConfigureAwait(false);
}
else
{
await SendToInstance(context, policy, next, instance).ConfigureAwait(false);
}
}
public async Task SendQuery <T>(SagaQueryConsumeContext <TSaga, T> context, ISagaPolicy <TSaga, T> policy, IPipe <SagaConsumeContext <TSaga, T> > next) where T : class
{
try
{
var sagaInstances = await _collection.Find(context.Query.FilterExpression).ToListAsync().ConfigureAwait(false);
if (!sagaInstances.Any())
{
var missingPipe = new MissingPipe <TSaga, T>(_collection, next, _mongoDbSagaConsumeContextFactory);
await policy.Missing(context, missingPipe).ConfigureAwait(false);
}
else
{
foreach (var instance in sagaInstances)
{
await SendToInstance(context, policy, next, instance).ConfigureAwait(false);
}
}
}
catch (SagaException sex)
{
if (_log.IsErrorEnabled)
{
_log.Error("Saga Exception Occurred", sex);
}
}
catch (Exception ex)
{
if (_log.IsErrorEnabled)
{
_log.Error($"SAGA:{TypeMetadataCache<TSaga>.ShortName} Exception {TypeMetadataCache<T>.ShortName}", ex);
}
throw new SagaException(ex.Message, typeof(TSaga), typeof(T), Guid.Empty, ex);
}
}
