private async Task Handle(ResumePausedSpecialLiquidationCommand command, IEventPublisher publisher)
{
var executionInfo = await _operationExecutionInfoRepository.GetAsync <SpecialLiquidationOperationData>(
operationName : SpecialLiquidationSaga.OperationName,
id : command.OperationId);
if (executionInfo?.Data == null)
{
return;
}
var pause = await _rfqPauseService.GetCurrentAsync(command.OperationId);
if (pause?.State == PauseState.PendingCancellation)
{
_chaosKitty.Meow(command.OperationId);
var cancellationAcknowledged = await _rfqPauseService.AcknowledgeCancellationAsync(command.OperationId);
if (cancellationAcknowledged)
{
publisher.PublishEvent(new ResumePausedSpecialLiquidationSucceededEvent
{
OperationId = command.OperationId,
CreationTime = _dateService.Now()
});
return;
}
publisher.PublishEvent(new ResumePausedSpecialLiquidationFailedEvent
{
OperationId = command.OperationId,
Reason = SpecialLiquidationResumePausedFailureReason.AcknowledgeError
});
return;
}
publisher.PublishEvent(new ResumePausedSpecialLiquidationFailedEvent
{
OperationId = command.OperationId,
Reason = SpecialLiquidationResumePausedFailureReason.NoActivePause
});
}
public async Task <RfqPauseInfoContract> GetPauseInfoAsync(string id)
{
var pause = await _rfqPauseService.GetCurrentAsync(id);
if (pause == null)
{
return(null);
}
return(new RfqPauseInfoContract
{
State = pause?.State.ToString(),
CreatedAt = pause.CreatedAt,
EffectiveSince = pause.EffectiveSince,
Initiator = pause.Initiator,
Source = pause.Source.ToString()
});
}
private async Task Handle(PriceForSpecialLiquidationCalculatedEvent e, ICommandSender sender)
{
var executionInfo = await _operationExecutionInfoRepository.GetAsync <SpecialLiquidationOperationData>(
operationName : OperationName,
id : e.OperationId);
if (executionInfo?.Data == null)
{
return;
}
var pause = await _rfqPauseService.GetCurrentAsync(e.OperationId);
if (pause?.State == PauseState.Active)
{
return;
}
if (executionInfo.Data.SwitchState(SpecialLiquidationOperationState.PriceRequested,
SpecialLiquidationOperationState.PriceReceived))
{
//validate that volume didn't changed to peek either to execute order or request the price again
var currentVolume = GetNetPositionCloseVolume(executionInfo.Data.PositionIds, executionInfo.Data.AccountId);
if (currentVolume != 0 && currentVolume != executionInfo.Data.Volume)
{
// if RFQ is paused we will not continue
var pauseAcknowledged = await _rfqPauseService.AcknowledgeAsync(e.OperationId);
if (pauseAcknowledged)
{
return;
}
executionInfo.Data.RequestNumber++;
executionInfo.Data.Volume = currentVolume;
RequestPrice(sender, executionInfo);
await _operationExecutionInfoRepository.Save(executionInfo);
return;//wait for the new price
}
await _rfqPauseService.StopPendingAsync(e.OperationId, PauseCancellationSource.PriceReceived, nameof(SpecialLiquidationSaga));
executionInfo.Data.Price = e.Price;
//execute order in Gavel by API
sender.SendCommand(new ExecuteSpecialLiquidationOrderCommand
{
OperationId = e.OperationId,
CreationTime = _dateService.Now(),
Instrument = executionInfo.Data.Instrument,
Volume = executionInfo.Data.Volume,
Price = e.Price,
}, _cqrsContextNamesSettings.TradingEngine);
_chaosKitty.Meow(e.OperationId);
await _operationExecutionInfoRepository.Save(executionInfo);
}
}