public IEnumerable <ITradeData> ReadTradeData(TextReader textReader)
{
string line = textReader.ReadLine();
var cIdx = ColumnIndexes.GeFromHeaderLine(line, Separator);
int rowNo = 2;
while ((line = textReader.ReadLine()) != null)
{
ITradeData tradeData = null;
try
{
string[] values = line.Split(new char[] { Separator });
if (values.Length > 6)
{
throw new FormatException("Too many columns in a row.");
}
tradeData = new TradeData(values[cIdx.DateIndex], values[cIdx.OpenIndex], values[cIdx.HighIndex], values[cIdx.LowIndex], values[cIdx.CloseIndex], values[cIdx.VolumeIndex]).CheckDataBusinessCorrectness();
}
catch (Exception e)
{
e.Data["rowNo"] = rowNo;
Trace.TraceError("Exception when processing row number: " + rowNo + " (" + e.Message + ")");
throw e;
}
rowNo++;
yield return(tradeData);
}
}
public IEnumerable <ITradeData> ReadTradeData(TextReader textReader)
{
string line;
int rowNo = 1;
while ((line = textReader.ReadLine()) != null)
{
ITradeData tradeData = null;
try
{
string[] values = line.Split(new char[] { Separator });
if (values.Length > 6)
{
throw new FormatException("Too many columns in a row.");
}
tradeData = new TradeData(values[0], values[1], values[2], values[3], values[4], values[5]).CheckDataBusinessCorrectness();
}
catch (Exception e)
{
e.Data["rowNo"] = rowNo;
Trace.TraceError("Exception when processing row number: " + rowNo + " (" + e.Message + ")");
throw e;
}
rowNo++;
yield return(tradeData);
}
}
public IEnumerable <ITradeData> ReadTradeData(TextReader textReader)
{
XmlReader reader = XmlReader.Create(textReader);
reader.MoveToContent();
reader.ReadToDescendant("value");
int rowNo = 1;
do
{
ITradeData tradeData = null;
try
{
var date = reader.GetAttribute("date");
var open = reader.GetAttribute("open");
var high = reader.GetAttribute("high");
var low = reader.GetAttribute("low");
var close = reader.GetAttribute("close");
var volume = reader.GetAttribute("volume");
tradeData = new TradeData(date, open, high, low, close, volume).CheckDataBusinessCorrectness();
}
catch (Exception e)
{
e.Data["rowNo"] = rowNo;
Trace.TraceError("Exception when processing row number: " + rowNo + " (" + e.Message + ")");
throw e;
}
rowNo++;
yield return(tradeData);
} while (reader.ReadToNextSibling("value"));
}
