/// <summary>
/// Reads a <see cref="Guid"/> value from an array of bytes.
/// </summary>
/// <param name="bytes">The array of bytes to read from.</param>
/// <param name="position">The position in the array where the value should be read.</param>
/// <returns></returns>
public static Guid ReadGuid(this byte[] bytes, int position)
{
if (bytes == null)
{
throw new ArgumentNullException(nameof(bytes));
}
// must be at least able to read a bool
if (position < 0 || bytes.Length < position + SizeOfBool)
{
throw new ArgumentOutOfRangeException(nameof(position));
}
// read the 'empty' bool
if (bytes.ReadBool(position))
{
return(Guid.Empty);
}
// not 'empty', must be able to read a full guid
if (bytes.Length < position + SizeOfGuid)
{
throw new ArgumentOutOfRangeException(nameof(position));
}
position += SizeOfByte;
// ReSharper disable once UseObjectOrCollectionInitializer
#pragma warning disable IDE0017 // Simplify object initialization
var v = new JavaUuidOrder();
#pragma warning restore IDE0017 // Simplify object initialization
v.X0 = bytes[position]; position += SizeOfByte;
v.X1 = bytes[position]; position += SizeOfByte;
v.X2 = bytes[position]; position += SizeOfByte;
v.X3 = bytes[position]; position += SizeOfByte;
v.X4 = bytes[position]; position += SizeOfByte;
v.X5 = bytes[position]; position += SizeOfByte;
v.X6 = bytes[position]; position += SizeOfByte;
v.X7 = bytes[position]; position += SizeOfByte;
v.X8 = bytes[position]; position += SizeOfByte;
v.X9 = bytes[position]; position += SizeOfByte;
v.XA = bytes[position]; position += SizeOfByte;
v.XB = bytes[position]; position += SizeOfByte;
v.XC = bytes[position]; position += SizeOfByte;
v.XD = bytes[position]; position += SizeOfByte;
v.XE = bytes[position]; position += SizeOfByte;
v.XF = bytes[position];
return(v.Value);
}
/// <summary>
/// Writes a <see cref="Guid"/> value to an array of bytes.
/// </summary>
/// <param name="bytes">The array of bytes to write to.</param>
/// <param name="position">The position in the array where the value should be written.</param>
/// <param name="value">The value to write.</param>
public static void WriteGuid(this byte[] bytes, int position, Guid value)
{
if (bytes == null)
{
throw new ArgumentNullException(nameof(bytes));
}
// must at least be able to write a bool
if (position < 0 || bytes.Length < position + SizeOfBool)
{
throw new ArgumentOutOfRangeException(nameof(position));
}
// write the 'empty' bool
bytes.WriteBool(position, value == Guid.Empty);
if (value == Guid.Empty)
{
return;
}
// if not empty, must be able to write the full guid
if (bytes.Length < position + SizeOfGuid)
{
throw new ArgumentOutOfRangeException(nameof(position));
}
position += SizeOfByte;
var v = new JavaUuidOrder {
Value = value
};
bytes[position] = v.X0; position += SizeOfByte;
bytes[position] = v.X1; position += SizeOfByte;
bytes[position] = v.X2; position += SizeOfByte;
bytes[position] = v.X3; position += SizeOfByte;
bytes[position] = v.X4; position += SizeOfByte;
bytes[position] = v.X5; position += SizeOfByte;
bytes[position] = v.X6; position += SizeOfByte;
bytes[position] = v.X7; position += SizeOfByte;
bytes[position] = v.X8; position += SizeOfByte;
bytes[position] = v.X9; position += SizeOfByte;
bytes[position] = v.XA; position += SizeOfByte;
bytes[position] = v.XB; position += SizeOfByte;
bytes[position] = v.XC; position += SizeOfByte;
bytes[position] = v.XD; position += SizeOfByte;
bytes[position] = v.XE; position += SizeOfByte;
bytes[position] = v.XF;
}
