public async Task Handle(ExchangeCandleDataReceivedIntegrationEvent @event)
{
//return;
try
{
var baseCurrency = @event.BaseCurrency.ToUpper();
var quoteCurrency = @event.QuoteCurrency.ToUpper();
var exchangeId = @event.ExchangeId;
var candleChartId = @event.CandleChartId;
var existingCandleChart = await _candleChartRepository.GetByCandleChartIdAsync(candleChartId);
if (existingCandleChart == null)
{
throw new KeyNotFoundException($"Candle chart with Id \"{candleChartId}\" not found.");
}
var candle = @event.Candle;
existingCandleChart.UpdateCandle(
candle.Timestamp,
candle.High,
candle.Low,
candle.Open,
candle.Close,
candle.Volume
);
_candleChartRepository.Update(existingCandleChart);
try
{
await _candleChartRepository.UnitOfWork.SaveEntitiesAsync();
}
catch (DbUpdateConcurrencyException ex)
{
Console.WriteLine("Exception ignored: DbUpdateConcurrencyException.");
Console.WriteLine("Error message: " + ex.Message);
}
await this._exchangeAccessIntegrationEventService.PublishThroughEventBusAsync(new CandleChartUpdatedIntegrationEvent(
@event.CandleChartId,
existingCandleChart.ExchangeId,
existingCandleChart.BaseCurrency,
existingCandleChart.QuoteCurrency,
existingCandleChart.CandlePeriod.Name,
candle.Timestamp,
candle.High,
candle.Low,
candle.Open,
candle.Close,
candle.Volume
));
}
catch (Exception ex)
{
Console.WriteLine("Handle Integration Event: ExchangeCandleDataReceivedIntegrationEvent.");
Console.WriteLine("Result: Failure.");
Console.WriteLine("Error Message: " + ex.Message);
}
/*var saved = false;
* while (!saved)
* {
* try
* {
* await _candleChartRepository.UnitOfWork.SaveEntitiesAsync();
* saved = true;
* }
* catch (DbUpdateConcurrencyException ex)
* {
*
* foreach (var entry in ex.Entries)
* {
*
* var proposedValues = entry.CurrentValues;
* var databaseValues = entry.GetDatabaseValues();
*
* foreach (var property in proposedValues.Properties)
* {
* var proposedValue = proposedValues[property];
* var databaseValue = databaseValues != null ? databaseValues[property] : proposedValue;
*
* // TODO: decide which value should be written to database
* proposedValues[property] = proposedValue;
* }
* }
*
* Console.WriteLine("Exception Solved: DbUpdateConcurrencyException.");
* }
* }*/
}
