/// <summary>
/// Checks that the factor file exists on disk, and if it does, loads it into memory
/// </summary>
private FactorFile GetFactorFile(Symbol symbol, string permtick, string market)
{
if (FactorFile.HasScalingFactors(permtick, market))
{
var factorFile = FactorFile.Read(permtick, market);
_cache.AddOrUpdate(symbol, factorFile, (s, c) => factorFile);
return(factorFile);
}
// return null if not found
return(null);
}
/// <summary>
/// Checks that the factor file exists on disk, and if it does, loads it into memory
/// </summary>
private FactorFile GetFactorFile(Symbol symbol, string permtick, string market)
{
FactorFile factorFile = null;
if (FactorFile.HasScalingFactors(permtick, market))
{
factorFile = FactorFile.Read(permtick, market);
_cache.AddOrUpdate(symbol, factorFile, (s, c) => factorFile);
}
else
{
// add null value to the cache, we don't want to check the disk multiple times
// but keep existing value if it exists, just in case
_cache.AddOrUpdate(symbol, factorFile, (s, oldValue) => oldValue);
}
return(factorFile);
}