public void AddConnection(BinanceConnection connection)
{
_queue.QueueWS(connection);
}
public void QueueWS(BinanceConnection wsItem)
{
_wsItems.Enqueue(wsItem);
_signal.Release();
}
private async Task BackgroundProcessing(CancellationToken stoppingToken)
{
using (var scope = _scopeFactory.CreateScope())
{
while (!stoppingToken.IsCancellationRequested)
{
BinanceConnection wsConnection = null;
try
{
wsConnection = await _connectionsQueue.DequeueAsync(stoppingToken);
var scraper = scope.ServiceProvider.GetRequiredService <BinanceWSScraper>();
scraper.Stats = scope.ServiceProvider.GetRequiredService <StatsService>().GetStatsHelper(wsConnection.Symbol);
if (wsConnection.Store)
{
var storage = scope.ServiceProvider.GetRequiredService <IStorage>();
storage.Init(wsConnection.Symbol);
scraper.Storage = storage;
}
WSScraperData data = new WSScraperData()
{
wsScraper = scraper
};
data.wsScraper.Init(wsConnection);
_logger.LogInformation("Connecting to {0}.", wsConnection.Symbol);
data.wsScraperTask = Task.Run(async() =>
{
await data.wsScraper.ConnectAsync(data.tokenSource.Token)
.ContinueWith((antecedent, wsConnection) =>
{
var binConnection = wsConnection as BinanceConnection;
_wsConnections.TryRemove(binConnection.Symbol, out var data);
foreach (var ex in antecedent.Exception.InnerExceptions)
{
if (ex is TaskCanceledException)
{
_logger.LogInformation("WebSocket connetion to {0} was closed.", binConnection.Symbol);
}
else
{
_logger.LogError("WebSocket connetion to {0} has failed. Exception: {1}.", binConnection.Symbol, ex);
}
}
}, wsConnection, TaskContinuationOptions.OnlyOnFaulted);
});
_wsConnections.TryAdd(wsConnection.Symbol, data);
_logger.LogInformation("Active connections count = {0}", _wsConnections.Count);
}
catch (OperationCanceledException) { }
catch (Exception ex)
{
if (wsConnection != null)
{
_logger.LogError(ex, "Error occured connecting: {Address}", wsConnection.Address);
}
else
{
_logger.LogError(ex, "Websocket connection dequeuing error.");
}
}
}
_logger.LogInformation("BackgroundProcessing is finished.");
ShutDown();
}
}
public void Init(BinanceConnection connectionDetails)
{
this.connectionDetails = connectionDetails;
}