/// <summary>
/// Helper method to determine if the symbol associated with the requested configuration is expired or not
/// </summary>
/// <remarks>This is useful during warmup where we can be requested to add some already expired asset. We want to skip sending it
/// to our live <see cref="_dataQueueHandler"/> instance to avoid explosions. But we do want to add warmup enumerators</remarks>
private bool IsExpired(SubscriptionDataConfig dataConfig)
{
var mapFile = _mapFileProvider.ResolveMapFile(dataConfig);
var delistingDate = dataConfig.Symbol.GetDelistingDate(mapFile);
return(_timeProvider.GetUtcNow().Date > delistingDate.ConvertToUtc(dataConfig.ExchangeTimeZone));
}
/// <summary>
/// Performs universe selection based on the symbol mapping
/// </summary>
/// <param name="utcTime">The current utc time</param>
/// <param name="data">Empty data</param>
/// <returns>The symbols to use</returns>
public override IEnumerable <Symbol> SelectSymbols(DateTime utcTime, BaseDataCollection data)
{
yield return(_security.Symbol.Canonical);
var mapFile = _mapFileProvider.ResolveMapFile(new SubscriptionDataConfig(Configuration,
dataMappingMode: UniverseSettings.DataMappingMode,
symbol: _security.Symbol.Canonical));
var mappedSymbol = mapFile.GetMappedSymbol(utcTime.ConvertFromUtc(_security.Exchange.TimeZone));
if (!string.IsNullOrEmpty(mappedSymbol) && mappedSymbol != _mappedSymbol)
{
if (_currentSymbol != null)
{
// let's emit the old and new for the mapping date
yield return(_currentSymbol);
}
_mappedSymbol = mappedSymbol;
_currentSymbol = _security.Symbol.Canonical
.UpdateMappedSymbol(mappedSymbol, Configuration.ContractDepthOffset)
.Underlying;
}
if (_currentSymbol != null)
{
((IContinuousSecurity)_security).Mapped = _currentSymbol;
yield return(_currentSymbol);
}
}
/// <summary>
/// Initializes this instance
/// </summary>
/// <param name="config">The <see cref="SubscriptionDataConfig"/></param>
/// <param name="factorFileProvider">The factor file provider to use</param>
/// <param name="mapFileProvider">The <see cref="Data.Auxiliary.MapFile"/> provider to use</param>
/// <param name="startTime">Start date for the data request</param>
public void Initialize(
SubscriptionDataConfig config,
IFactorFileProvider factorFileProvider,
IMapFileProvider mapFileProvider,
DateTime startTime)
{
_config = config;
_mapFile = mapFileProvider.ResolveMapFile(_config);
_factorFile = factorFileProvider.Get(_config.Symbol) as CorporateFactorProvider;
}
/// <summary>
/// Initializes this instance
/// </summary>
/// <param name="config">The <see cref="SubscriptionDataConfig"/></param>
/// <param name="factorFileProvider">The factor file provider to use</param>
/// <param name="mapFileProvider">The <see cref="Data.Auxiliary.MapFile"/> provider to use</param>
/// <param name="startTime">Start date for the data request</param>
public virtual void Initialize(
SubscriptionDataConfig config,
IFactorFileProvider factorFileProvider,
IMapFileProvider mapFileProvider,
DateTime startTime)
{
_config = config;
var mapFile = mapFileProvider.ResolveMapFile(_config);
DelistingDate = new ReferenceWrapper <DateTime>(config.Symbol.GetDelistingDate(mapFile));
}
/// <summary>
/// Initializes the <see cref="SubscriptionDataReader"/> instance
/// </summary>
/// <remarks>Should be called after all consumers of <see cref="NewTradableDate"/> event are set,
/// since it will produce events.</remarks>
public void Initialize()
{
if (_initialized)
{
return;
}
//Save the type of data we'll be getting from the source.
try
{
_dataFactory = _config.GetBaseDataInstance();
}
catch (ArgumentException exception)
{
OnInvalidConfigurationDetected(new InvalidConfigurationDetectedEventArgs(_config.Symbol, exception.Message));
_endOfStream = true;
return;
}
// If Tiingo data, set the access token in data factory
var tiingo = _dataFactory as TiingoPrice;
if (tiingo != null)
{
if (!Tiingo.IsAuthCodeSet)
{
Tiingo.SetAuthCode(Config.Get("tiingo-auth-token"));
}
}
// load up the map files for equities, options, and custom data if it supports it.
// Only load up factor files for equities
if (_dataFactory.RequiresMapping())
{
try
{
var mapFile = _mapFileProvider.ResolveMapFile(_config);
// only take the resolved map file if it has data, otherwise we'll use the empty one we defined above
if (mapFile.Any())
{
_mapFile = mapFile;
}
if (_config.PricesShouldBeScaled())
{
var factorFile = _factorFileProvider.Get(_config.Symbol);
_hasScaleFactors = factorFile != null;
if (_hasScaleFactors)
{
_factorFile = factorFile;
// if factor file has minimum date, update start period if before minimum date
if (!_isLiveMode && _factorFile != null && _factorFile.FactorFileMinimumDate.HasValue)
{
if (_periodStart < _factorFile.FactorFileMinimumDate.Value)
{
_periodStart = _factorFile.FactorFileMinimumDate.Value;
OnNumericalPrecisionLimited(
new NumericalPrecisionLimitedEventArgs(_config.Symbol,
$"[{_config.Symbol.Value}, {_factorFile.FactorFileMinimumDate.Value.ToShortDateString()}]"));
}
}
}
if (_periodStart < mapFile.FirstDate)
{
_periodStart = mapFile.FirstDate;
OnStartDateLimited(
new StartDateLimitedEventArgs(_config.Symbol,
$"[{_config.Symbol.Value}," +
$" {mapFile.FirstDate.ToString("yyyy-MM-dd", CultureInfo.InvariantCulture)}]"));
}
}
}
catch (Exception err)
{
Log.Error(err, "Fetching Price/Map Factors: " + _config.Symbol.ID + ": ");
}
}
_factorFile ??= _config.Symbol.GetEmptyFactorFile();
_mapFile ??= new MapFile(_config.Symbol.Value, Enumerable.Empty <MapFileRow>());
_delistingDate = _config.Symbol.GetDelistingDate(_mapFile);
// adding a day so we stop at EOD
_delistingDate = _delistingDate.AddDays(1);
UpdateDataEnumerator(true);
_initialized = true;
}
private string GetMappedSymbol(SubscriptionDataConfig config, DateTime date)
{
return(_mapFileProvider.ResolveMapFile(config).GetMappedSymbol(date, config.MappedSymbol));
}
/// <summary>
/// Initializes the map file to use
/// </summary>
protected void InitializeMapFile()
{
MapFile = _mapFileProvider.ResolveMapFile(Config);
}
