public void Dispose()
{
if (weOwnSipperFile)
{
sipperFile.Dispose();
sipperFile = null;
}
} /* Dispose */
public SipperFileBuffered(Stream _stream,
InstrumentDataManager _dataManger
)
{
// We will first make sure that '_fileName' exists.
sipperFile = OpenAppropriateFormat(_stream, _dataManger);
if (sipperFile == null)
{
throw new Exception("SipperFileBuffered: Could not determine format of stream.");
}
weOwnSipperFile = true;
Initialization();
}
public SipperFileBuffered(string _fileName,
InstrumentDataManager _dataManger
)
{
try
{
sipperFile = OpenAppropriateFormat(_fileName, _dataManger);
}
catch (IOException ioException)
{
throw ioException;
}
if (sipperFile == null)
{
throw new Exception("SipperFileBuffered: Could not determine format of file[" + _fileName + "]");
}
weOwnSipperFile = true;
Initialization();
}
public SipperFileBuffered(SipperBaseFile _sipperFile)
{
weOwnSipperFile = false;
sipperFile = _sipperFile;
Initialization();
}
} /* OpenAppropriateFormat */
private SipperBaseFile OpenAppropriateFormat(Stream _stream,
InstrumentDataManager _dataManger
)
{
//*******************************************************
// First Lets try Sipper3 format
bool validSipper2 = false;
bool validSipper3 = false;
bool validSipperSimple = false;
bool validLarcos4Bit = false;
long startPos = _stream.Position;
// We will first try to see if a Sipper3 file.
try
{
sipperFile = new Sipper3File(_stream, _dataManger);
validSipper3 = sipperFile.ValidateFormat();
}
catch (Exception)
{
validSipper3 = false;
sipperFile = null;
}
if ((sipperFile != null) && (validSipper3))
{
return(sipperFile);
}
if (sipperFile != null)
{
//sipperFile.Dispose ();
//sipperFile = null;
}
//*******************************************************
// Try 4Bit Larcos Format
try
{
_stream.Seek(0, SeekOrigin.Begin);
sipperFile = new SipperBuff4Bit(_stream, _dataManger);
validLarcos4Bit = sipperFile.ValidateFormat();
}
catch (IOException ioException)
{
throw new IOException("OpenAppropriateFormat Could not open file", ioException);
}
catch (Exception)
{
validLarcos4Bit = false;
sipperFile = null;
}
if ((sipperFile != null) && (validLarcos4Bit))
{
return(sipperFile);
}
//*******************************************************
// Try SipperSimple format.
_stream.Position = startPos;
try
{
sipperFile = new SipperFileSimple(_stream, _dataManger);
validSipperSimple = sipperFile.ValidateFormat();
}
catch (Exception)
{
validSipperSimple = false;
sipperFile = null;
}
if ((sipperFile != null) && (validSipperSimple))
{
return(sipperFile);
}
// Now we will try to see if valid Sipper2 format
try
{
sipperFile = new Sipper2File(_stream, _dataManger);
validSipper2 = sipperFile.ValidateFormat();
}
catch (Exception)
{
validSipper2 = false;
sipperFile = null;
}
if ((sipperFile != null) && (validSipper2))
{
return(sipperFile);
}
if (sipperFile != null)
{
sipperFile.Dispose();
}
sipperFile = null;
return(null);
} /* OpenAppropriateFormat */
} /* CalculateTargetCols */
private SipperBaseFile OpenAppropriateFormat(string _fileName,
InstrumentDataManager _dataManger
)
{
// First Lets try Sipper3 format
bool validSipper2 = false;
bool validSipper3 = false;
bool validSipperSimple = false;
bool validLarcos4Bit = false;
// We will first try to see if a Sipper3 file.
try
{
sipperFile = new Sipper3File(_fileName, _dataManger);
validSipper3 = sipperFile.ValidateFormat();
}
catch (IOException ioException)
{
throw new IOException("OpenAppropriateFormat Could not open file", ioException);
}
catch (Exception)
{
validSipper3 = false;
sipperFile = null;
}
if ((sipperFile != null) && (validSipper3))
{
return(sipperFile);
}
if (sipperFile != null)
{
sipperFile.Dispose();
sipperFile = null;
}
// Try 4Bit Larcos Format
try
{
sipperFile = new SipperBuff4Bit(_fileName, _dataManger);
validLarcos4Bit = sipperFile.ValidateFormat();
}
catch (IOException ioException)
{
throw new IOException("OpenAppropriateFormat Could not open file", ioException);
}
catch (Exception)
{
validLarcos4Bit = false;
sipperFile = null;
}
if ((sipperFile != null) && (validLarcos4Bit))
{
return(sipperFile);
}
if (sipperFile != null)
{
sipperFile.Dispose();
sipperFile = null;
}
// Now try the Simple Sipper Format.
try
{
sipperFile = new SipperFileSimple(_fileName, _dataManger);
validSipperSimple = sipperFile.ValidateFormat();
}
catch (Exception)
{
validSipperSimple = false;
sipperFile = null;
}
if ((sipperFile != null) && (validSipperSimple))
{
return(sipperFile);
}
if (sipperFile != null)
{
sipperFile.Dispose();
}
sipperFile = null;
// Now we will try to see if valid Sipper2 format
try
{
sipperFile = new Sipper2File(_fileName, _dataManger);
validSipper2 = sipperFile.ValidateFormat();
}
catch (Exception)
{
validSipper2 = false;
sipperFile = null;
}
if ((sipperFile != null) && (validSipper2))
{
return(sipperFile);
}
if (sipperFile != null)
{
sipperFile.Dispose();
}
sipperFile = null;
return(null);
} /* OpenAppropriateFormat */
