private void BuildHistoricalCacheForInstrument(Instrument InstrumentToCache)
{
HistoricalQuote oH = new HistoricalQuote(null, null, null);
DateTime oDataFromNeeded = DateTime.Now;
bool bReadMore = false;
bool bAllHistoricalDataNeeded = true;
string FullPath = GetFullPathOfHistoricalDataForInstrument(InstrumentToCache);
if (File.Exists(FullPath))
{
oH = (HistoricalQuote)DeserializeJSON.DeserializeObjectFromFile(FullPath);
if (oH == null)
{
return;
}
//get the latest date to see if we need to add
if (oH.HistoricalQuoteDetails != null && oH.HistoricalQuoteDetails.Count > 0 && (DateTime.Now.Date - oH.HistoricalQuoteDetails.Max(h => h.Date).Date.AddDays(1).Date).Days >= 1)
{
bReadMore = true;
bAllHistoricalDataNeeded = false;
oDataFromNeeded = oH.HistoricalQuoteDetails.Max(h => h.Date).Date.AddDays(1).Date;
}
else
{
//all is up to date!
bAllHistoricalDataNeeded = false;
}
}
if (!bReadMore && bAllHistoricalDataNeeded)
{
try
{
oH = GetHistoricalQuoteOnline(InstrumentToCache, m_oCurrentExchange);
SerializeJSONdata.SerializeObject(oH, FullPath);
}
catch (Exception ex)
{
ImperaturGlobal.GetLog().Error(string.Format("Couldn't retreive and save data for {0}", InstrumentToCache.Symbol), ex);
}
}
else if (bReadMore)
{
try
{
HistoricalQuote oHnew = GetHistoricalQuoteOnline(InstrumentToCache, m_oCurrentExchange, oDataFromNeeded);
oH.HistoricalQuoteDetails.AddRange(oHnew.HistoricalQuoteDetails.Where(h => h.Date.Date > oDataFromNeeded.Date).ToList());
SerializeJSONdata.SerializeObject(oH, FullPath);
}
catch (Exception ex)
{
ImperaturGlobal.GetLog().Error(string.Format("Couldn't retreive and save data for {0}", InstrumentToCache.Symbol), ex);
}
}
}
private bool CreateSystemSettingsFile(ImperaturData SystemData)
{
if (SerializeJSONdata.SerializeObject(SystemData, string.Format(@"{0}\{1}", SystemData.SystemDirectory, SystemDataFile)))
{
return(true);
}
else
{
m_oLastErrorMessage = string.Format("Could not save settings file to {0}", SystemData.SystemDirectory);
return(false);
}
}
private void UpdateQuotesFromExternalSource()
{
if (m_oQuotes == null)
{
//first try to read the file
try
{
string FileToRead = "";
foreach (string f in Directory.EnumerateFiles(string.Format(@"{0}\{1}\{2}", ImperaturGlobal.SystemData.SystemDirectory, ImperaturGlobal.SystemData.QuoteDirectory, ImperaturGlobal.SystemData.DailyQuoteDirectory), string.Format("{0}*", ImperaturGlobal.SystemData.QuoteFile), SearchOption.TopDirectoryOnly))
{
string time = f.Substring(f.Length - 5).Replace(";", ":");
string date = f.Substring(f.Length - 15).Substring(0, 10);
if (Convert.ToDateTime(string.Format("{0} {1}", date, time)).CompareTo(DateTime.Now.AddMinutes(
-Convert.ToDouble(ImperaturGlobal.SystemData.QuoteRefreshTime)
)) > 0)
{
FileToRead = f;
break;
}
}
if (FileToRead != "")
{
m_oQuotes = (List <Quote>)DeserializeJSON.DeserializeObjectFromFile(@FileToRead.ToString());
}
else
{
m_oQuotes = GetQuotesFromExternalSource(ImperaturGlobal.SystemData.ULR_Quotes).Where(x => x != null).ToList();
if (m_oQuotes.Count() > 0)
{
SerializeJSONdata.SerializeObject(m_oQuotes, string.Format(@"{0}\{1}\{2}\{3}{4}{5}", ImperaturGlobal.SystemData.SystemDirectory, ImperaturGlobal.SystemData.QuoteDirectory, ImperaturGlobal.SystemData.DailyQuoteDirectory, ImperaturGlobal.SystemData.QuoteFile, DateTime.Now.ToShortDateString(), DateTime.Now.ToShortTimeString().Replace(":", ";")));
}
}
}
catch (Exception ex)
{
//read from external source
m_oQuotes = GetQuotesFromExternalSource(ImperaturGlobal.SystemData.ULR_Quotes).Where(x => x != null).ToList();
//save if results obtained
}
}
}
