private async Task <bool> StopStrategy(IStrategySettingDTO strat)
{
IStrategy runningStrategy = this.strategies.FirstOrDefault(x => x.Name == strat.StrategyName);
this.PlatformLogService.Log(platformJob.ID, userId, $"Stopping strategy {runningStrategy.Name}", eventType.Info);
await runningStrategy.Stop();
return(true);
}
private async Task <IEnumerable <IStrategySettingDTO> > StopUpdateStrategies(IEnumerable <IStrategySettingDTO> runningStrats, IEnumerable <IStrategySettingDTO> newStrats)
{
List <IStrategySettingDTO> toremoveStrats = runningStrats.Where(x => newStrats.Select(y => y.StrategyName).Contains(x.StrategyName)).ToList();
foreach (IStrategySettingDTO strat in newStrats)
{
IStrategySettingDTO toRemove = toremoveStrats.FirstOrDefault(x => x.StrategyName == strat.StrategyName && x.UpdatedTimeStamp == x.UpdatedTimeStamp);
if (toRemove != null)
{
toremoveStrats.Remove(toRemove);
}
}
await Task.WhenAll(toremoveStrats.Select(x => this.StopStrategy(x)).ToList());
return(toremoveStrats);
}
public async Task <IStrategy> CreateStrategy(IStrategySettingDTO s, Dictionary <string, SemaphoreSlim> currencySemaphores, SemaphoreSlim concurrentSemaphore)
{
IStrategy strat = null;
if (s is LimitArbitrageStrategy4SettingsDTO)
{
var setting = (LimitArbitrageStrategy4SettingsDTO)s;
var ex1 = await this.exchangeFactory.GetExchange(setting.Exchange_1);
var ex2 = await this.exchangeFactory.GetExchange(setting.Exchange_2);
var baseSemapore = this.GetCurrencySemaphore(Currency.GetBaseFromSymbol(setting.Symbol), ref currencySemaphores);
var quoteSemapore = this.GetCurrencySemaphore(Currency.GetQuoteFromSymbol(setting.Symbol), ref currencySemaphores);
strat = new LimitArbitrage4Strategy(setting, ex1, ex2, this.logService, baseSemapore, quoteSemapore, concurrentSemaphore);
}
return(strat);
}
