static string GetData(IQuandlRequest req, string sym, string dataset, FileFormats form, bool checkcache, bool compressedcache, DebugDelegate d)
{
if (_d == null)
{
_d = d;
}
try
{
var path = BarListImpl.GetDBLoc(PROGRAM, dataset + "_" + sym, 30, DateTime.Now, getformatext(form));
if (checkcache)
{
if (System.IO.File.Exists(path))
{
try
{
var cached = Util.getfile(path, null);
if (compressedcache)
{
var cacheddata = GZip.Uncompress(cached);
v(sym + " " + dataset + " found " + cacheddata.Length.ToString("N0") + " bytes of cached data.");
return(cacheddata);
}
}
catch (Exception ex)
{
debug("Ignoring cache (will pull directly) after cache error for: " + dataset + " on " + sym + " err: " + ex.Message + ex.StackTrace);
}
}
}
var con = new QuandlConnection();
var data = con.Request(req);
var isdataok = !qh.isQdlUnderMaintence(data);
if (isdataok)
{
v(sym + " " + dataset + " retrieved " + data.Length.ToString("N0") + " bytes of " + dataset + " data.");
// save it for later caching
if (Util.setfile(path, compressedcache ? GZip.Compress(data) : data))
{
v(sym + " " + dataset + " cached " + data.Length.ToString("N0") + " bytes of " + dataset + " data.");
}
else
{
v(sym + " " + dataset + " error caching " + data.Length.ToString("N0") + " bytes of " + dataset + " data. Will be re-pulled on next attempt.");
}
}
else
{
debug(sym + " " + dataset + " can't be retrieved because quandl is down.");
return(string.Empty);
}
return(data);
}
catch (Exception ex)
{
if (isVerboseDebugging)
{
debug("An error occurred getting data for: " + dataset + " on symbol: " + sym + " using url: " + req.ToRequestString());
debug("Error for " + dataset + " on symbol: " + sym + ": " + ex.Message + ex.StackTrace);
}
else
{
debug("An error occurred getting data for: " + dataset + " on symbol: " + sym + ", err: " + ex.Message + ex.StackTrace);
}
return(string.Empty);
}
}