//public List<ForexPriceRecord> Read(DateTime priceDate)
//{
// return Read(Path.Combine(FileDataPath, Forexite.DateToFileName1(priceDate)), PredicateBuilder.True<ForexPriceRecord>());
//}
//public List<ForexPriceRecord> Read(string zipFilePath)
//{
// return Read(zipFilePath, PredicateBuilder.True<ForexPriceRecord>());
//}
public List <ForexPriceRecord> Read(string zipFilePath)
{
// file must exist
if (!File.Exists(zipFilePath))
{
throw new FileNotFoundException();
}
List <ForexPriceRecord> priceRecs = new List <ForexPriceRecord>();
byte[] block = ZippedFile.ZipDataStreamBytes(zipFilePath);
if (block.Length > 0)
{
priceRecs.AddRange((from f in
(from f in System.Text.Encoding.Default.GetString(block, 0, block.Length).Split('\r').ToList()
where !f.StartsWith("<") && f.Length > 6
select f.Replace("\n", "")).ToArray()
let rec = f.Split(',')
select new ForexPriceRecord()
{
Symbol = rec[0],
PriceDateTime = Forexite.ParseDate(rec[1], rec[2]),
Open = double.Parse(rec[3]),
High = double.Parse(rec[4]),
Low = double.Parse(rec[5]),
Close = double.Parse(rec[6]),
})
.ToList());
}
return(priceRecs);
}
public List <ForexitePriceRecord> Read(string zipFilePath, Expression <Func <ForexitePriceRecord, bool> > pred)
{
List <ForexitePriceRecord> priceRecs = new List <ForexitePriceRecord>();
byte[] block = ZippedFile.ZipDataStreamBytes(zipFilePath);
if (block.Length > 0)
{
priceRecs.AddRange((from f in
(from f in System.Text.Encoding.Default.GetString(block, 0, block.Length).Split('\r').ToList()
where !f.StartsWith("<") && f.Length > 6
select f.Replace("\n", "")).ToArray()
let rec = f.Split(',')
select new ForexitePriceRecord()
{
Symbol = rec[0],
PriceDateTime = Forexite.ParseDate(rec[1], rec[2]),
Open = double.Parse(rec[3]),
High = double.Parse(rec[4]),
Low = double.Parse(rec[5]),
Close = double.Parse(rec[6]),
})
.ToList().Where(pred.Compile()));
}
return(priceRecs);
}
public List <string> ToCsvList(string zipFilePath)
{
byte[] block = ZippedFile.ZipDataStreamBytes(zipFilePath);
List <string> recs = System.Text.Encoding.Default.GetString(block, 0, block.Length).Split('\r').ToList();
return((from r in recs
where !r.StartsWith("<") && r.Length > 6
select r.Replace("\n", "")).ToList());
}
public byte[] ToByteArray(string zipFilePath)
{
return(ZippedFile.ZipDataStreamBytes(zipFilePath));
}
public string ToCsvString(string zipFilePath)
{
byte[] block = ZippedFile.ZipDataStreamBytes(zipFilePath);
return(System.Text.Encoding.Default.GetString(block, 0, block.Length));
}
