/// <summary>
///
/// </summary>
/// <param name="isoHeader"></param>
/// <param name="packedBytes"></param>
/// <param name="index"></param>
public override void Pack(ISOHeader isoHeader, byte[] packedBytes, ref int index)
{
ISOHeaderVisa visaHeader = (ISOHeaderVisa)isoHeader;
ISOUtils.Hex2Bytes(isoHeader.Length().ToString("X2"), packedBytes, ref index);
ISOUtils.Hex2Bytes(visaHeader.h02_HeaderFlagAndFormat, packedBytes, ref index);
ISOUtils.Hex2Bytes(visaHeader.h03_TextFormat, packedBytes, ref index);
ISOUtils.Hex2Bytes(visaHeader.h04_TotalMessageLength, packedBytes, ref index);
ISOUtils.Ascii2Bcd(visaHeader.h05_DestinationStationId, packedBytes, ref index, ISOFieldPadding.LEFT);
ISOUtils.Ascii2Bcd(visaHeader.h06_SourceStationId, packedBytes, ref index, ISOFieldPadding.LEFT);
ISOUtils.Hex2Bytes(visaHeader.h07_RoundTripControlInformation, packedBytes, ref index);
ISOUtils.Hex2Bytes(visaHeader.h08_BaseIFlag, packedBytes, ref index);
ISOUtils.Hex2Bytes(visaHeader.h09_MessageStatusFlag, packedBytes, ref index);
ISOUtils.Hex2Bytes(visaHeader.h10_BatchNumber, packedBytes, ref index);
ISOUtils.Hex2Bytes(visaHeader.h11_Reserved, packedBytes, ref index);
ISOUtils.Hex2Bytes(visaHeader.h12_UserInformation, packedBytes, ref index);
}
/// <summary>
///
/// </summary>
/// <param name="isoHeader"></param>
/// <param name="packedBytes"></param>
/// <param name="index"></param>
public override void UnPack(ISOHeader isoHeader, byte[] packedBytes, ref int index)
{
// Unpack should check for existense of Header Field 13 always
ISOHeaderVisa visaHeader = (ISOHeaderVisa)isoHeader;
if (Logger.IsEnabled(LogLevel.Information))
{
Logger.LogInformation("Unpacking VISA Header");
}
string lenHex = ISOUtils.Bytes2Hex(packedBytes, ref index, 1);
visaHeader.m_length = ISOUtils.Hex2Bytes(lenHex)[0];
visaHeader.h02_HeaderFlagAndFormat = ISOUtils.Bytes2Hex(packedBytes, ref index, 1);
visaHeader.h03_TextFormat = ISOUtils.Bytes2Hex(packedBytes, ref index, 1);
visaHeader.h04_TotalMessageLength = ISOUtils.Bytes2Hex(packedBytes, ref index, 2);
visaHeader.h05_DestinationStationId = ISOUtils.Bcd2Ascii(packedBytes, ref index, ISOFieldPadding.LEFT, 6);
visaHeader.h06_SourceStationId = ISOUtils.Bcd2Ascii(packedBytes, ref index, ISOFieldPadding.LEFT, 6);
visaHeader.h07_RoundTripControlInformation = ISOUtils.Bytes2Hex(packedBytes, ref index, 1);
visaHeader.h08_BaseIFlag = ISOUtils.Bytes2Hex(packedBytes, ref index, 2);
visaHeader.h09_MessageStatusFlag = ISOUtils.Bytes2Hex(packedBytes, ref index, 3);
visaHeader.h10_BatchNumber = ISOUtils.Bytes2Hex(packedBytes, ref index, 1);
visaHeader.h11_Reserved = ISOUtils.Bytes2Hex(packedBytes, ref index, 3);
visaHeader.h12_UserInformation = ISOUtils.Bytes2Hex(packedBytes, ref index, 1);
}
/// <summary>
///
/// </summary>
/// <param name="headerPackagerName"></param>
/// <param name="logger"></param>
/// <returns></returns>
public static (ISOHeader Header, ISOHeaderPackager Packager) GetMessageHeaderAndPackager(string headerPackagerName, ILogger logger)
{
ISOHeader header;
ISOHeaderPackager packager;
switch (headerPackagerName)
{
case "ISOHeaderTITPPackager":
packager = new ISOHeaderTITPPackager(logger);
header = new ISOHeaderTITP(logger);
break;
case "ISOHeaderVisaPackager":
packager = new ISOHeaderVisaPackager(logger);
header = new ISOHeaderVisa(logger);
break;
default:
throw new ArgumentException($"Invalid header packager name: {headerPackagerName}");
}
return(header, packager);
}
