private async Task TruncateCacheAsync()
{
// Shall not truncate cache while reloading data.
if (_cacheInitalizationService.InitializationState != CacheInitializationState.Idle)
{
return;
}
SlotType activeSlot = await _redisCacheService.GetActiveSlotAsync(_marketType);
var tasks = new List <Task>();
foreach (var assetId in _historyRepository.GetStoredAssetPairs())
{
foreach (var priceType in Constants.StoredPriceTypes)
{
foreach (var timeInterval in Constants.InitFromDbIntervals)
{
int candlesAmount = _amountOfCandlesToStore[timeInterval];
var intervals = _redisCacheService.GetRedisCacheIntervals(timeInterval);
foreach (var interval in intervals)
{
tasks.Add(_redisCacheService.TruncateCacheAsync(assetId, priceType, interval, GetIntervalCandlesAmount(candlesAmount, interval), activeSlot));
}
}
}
}
await Task.WhenAll(tasks);
}
private async Task CacheAssetPairCandlesAsync(AssetPair assetPair, DateTime now, SlotType slotType)
{
try
{
_log.Info(nameof(InitializeCacheAsync), $"Caching {assetPair.Id} candles history...");
foreach (CandlePriceType priceType in Constants.StoredPriceTypes)
{
foreach (CandleTimeInterval timeInterval in Constants.InitFromDbIntervals)
{
DateTime alignedToDate = now.TruncateTo(timeInterval).AddIntervalTicks(1, timeInterval);
DateTime alignedFromDate = alignedToDate.AddIntervalTicks(-_amountOfCandlesToStore[timeInterval] - 1, timeInterval);
if (alignedFromDate < _minDate)
{
alignedFromDate = _minDate.TruncateTo(timeInterval);
}
ICandle[] candles = (await _candlesHistoryRepository.GetCandlesAsync(assetPair.Id, timeInterval, priceType, alignedFromDate, alignedToDate)).ToArray();
if (!candles.Any())
{
continue;
}
var intervals = _candlesCacheService.GetRedisCacheIntervals(timeInterval);
foreach (var interval in intervals)
{
ICandle[] intervalCandles = interval != timeInterval
? CandlesMerger.MergeIntoBiggerIntervals(candles, interval).ToArray()
: candles;
await _candlesCacheService.InitializeAsync(assetPair.Id, priceType, interval, intervalCandles, slotType);
}
}
}
_log.Info($"{assetPair.Id} candles history is cached.");
}
catch (Exception ex)
{
_log.Error(nameof(CacheAssetPairCandlesAsync), ex);
}
}