private async Task <bool> EnsureHistoryLoaded(IStockModel stock)
{
if (!stock.MonthStatsExpired)
{
return(true);
}
try
{
await StocksManager.CheckMonthStatsAsync(stock).TimeoutAfter(TimeSpan.FromSeconds(5));
}
catch (Exception ex)
{
var errorText = $"Не удалось загрузить историю {stock.Ticker}: {ex.Message}";
MainModel.AddErrorMessage(errorText);
Logger?.LogError(ex, errorText);
return(false);
}
if (stock.AvgDayVolumePerMonth < 0.01m)
{
var errorText = $"Не удалось загрузить историю {stock.Ticker}";
MainModel.AddErrorMessage(errorText);
Logger?.LogError(errorText);
return(false);
}
return(true);
}
public async Task <bool> Authorize(string login, string password)
{
var startUrl = Settings.USAQuotesURL.Split(new [] { '/' }, StringSplitOptions.RemoveEmptyEntries)[1];
var response = await _httpClient.PostAsync($"https://{startUrl}/auth/g/authenticate/v0/501/{login}/{password}/", new StringContent(""), _taskCancellation.Token);
dynamic result = JObject.Parse(await response.Content.ReadAsStringAsync());
if (result.code.name != "Ok")
{
MainModel.AddErrorMessage("L2DataService: " + result.message);
return(false);
}
_sessionId = result.sid;
return(true);
}
public async Task GetDataAsync(CancellationToken token)
{
if (!await Authorize(Settings.USAQuotesLogin, Settings.USAQuotesPassword))
{
Stop();
return;
}
var tickers = new List <string>();
while (!token.IsCancellationRequested)
{
tickers.Clear();
lock (_subscribedTickers)
{
tickers.AddRange(_subscribedTickers);
}
if (tickers.Count == 0)
{
await Task.Delay(100, token);
continue;
}
bool hasError = false;
try
{
int totalParts = (int)Math.Ceiling(tickers.Count / 100m);
var runResult = Parallel.For(0, totalParts, new ParallelOptions()
{
MaxDegreeOfParallelism = 4
},
(partNum) =>
{
var teekkaz = tickers.Skip(partNum * 100).Take(100).ToList();
var tstr = String.Join(",", teekkaz);
try
{
var resp = _httpClient.PostAsync(
$"{Settings.USAQuotesURL}?symbols={tstr}&webmasterId=501&sid={_sessionId}",
new StringContent(""), token).Result;
var text = resp.Content.ReadAsStringAsync().Result;
ParseQuotes(text);
}
catch (Exception ex)
{
MainModel.AddErrorMessage("L2DataService: " + ex.Message);
hasError = true;
}
});
while (!runResult.IsCompleted)
{
await Task.Delay(100);
}
}
catch (Exception ex)
{
MainModel.AddErrorMessage("L2DataService: " + ex.Message);
}
if (hasError)
{
await Authorize(Settings.USAQuotesLogin, Settings.USAQuotesPassword);
}
await Task.Delay(1000, token);
}
}