public static List <Quote> Import(string fileName)
{
if (!fileName.EndsWith(FilePostfix))
{
Console.WriteLine("Unexpected file type!");
return(null);
}
FileStream fs = null;
try
{
FileInfo info = new FileInfo(fileName);
long fileSize = info.Length;
if (fileSize % PoboDayStructure.Size != 0)
{
Console.WriteLine("File size = " + info.Length.ToString() + ", check to see if the file is corrupted!");
return(null);
}
byte[] buffer = new byte[info.Length];
fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
int readed = fs.Read(buffer, 0, (int)fileSize);
fs.Close();
if (readed != info.Length)
{
throw new IOException("Failed to read all data!");
}
PoboDayStructure[] rawRecords = BytesToStructures <PoboDayStructure>(buffer);
////Mapping the byte[] to PoboDayStructure[]
//PoboDayStructure[] rawRecords = new PoboDayStructure[readed/PoboDayStructure.Size];
//GCHandle pinned = GCHandle.Alloc(buffer, GCHandleType.Pinned);
//Int32 addr = pinned.AddrOfPinnedObject().ToInt32();
//for (int i = 0; i < rawRecords.Length; i++)
//{
// rawRecords[i] = (PoboDayStructure)Marshal.PtrToStructure(new IntPtr(i * PoboDayStructure.Size + addr), typeof(PoboDayStructure));
//}
//pinned.Free();
return(PoboDayStructure.QuotesOf(rawRecords));
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
return(null);
}
}
public PoboDayFileSummary(string name, string fileName)
{
Name = name;
FileInfo info = new FileInfo(fileName);
int fileSize = (int)info.Length;
if (fileSize % PoboDayStructure.Size != 0)
{
Console.WriteLine("Wrong file size of " + fileSize.ToString());
return;
}
byte[] buffer1 = new byte[PoboDayStructure.Size];
byte[] buffer2 = new byte[PoboDayStructure.Size];
FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(fs);
buffer1 = br.ReadBytes(PoboDayStructure.Size);
fs.Seek(-PoboDayStructure.Size, SeekOrigin.End);
buffer2 = br.ReadBytes(PoboDayStructure.Size);
br.Close();
fs.Close();
PoboDayStructure first = PoboImporter.BytesToStructures <PoboDayStructure>(buffer1)[0];
PoboDayStructure last = PoboImporter.BytesToStructures <PoboDayStructure>(buffer2)[0];
Since = first.Time.Date;
Until = last.Time.Date;
ItemsCount = fileSize / PoboDayStructure.Size;
TotalDays = (int)(Until - Since).TotalDays + 1;
IsAlive = true;
}
public static Quote QuoteOf(PoboDayStructure record)
{
return(new Quote(record.Time, record.Open, record.High, record.Low, record.Close, record.Volume));
}