/// <summary>
/// Reads the <see cref="Guid"/> form a buffer using <see cref="IBinaryDecoder"/>.
/// </summary>
/// <param name="decoder">The decoder to be used to recover data from a buffer.</param>
/// <returns>Guid.</returns>
internal static Guid ReadGuid(this IBinaryDecoder decoder)
{
int m_EncodedGuidLength = 16;
byte[] bytes = decoder.ReadBytes(m_EncodedGuidLength);
return(new Guid(bytes));
}
/// <summary>
/// Reads the string od bytes from UA Binary encoded as a 16-element byte array that contains the value.
/// </summary>
/// <param name="decoder">The decoder <see cref="IBinaryDecoder" /> to be used to read form the stream.</param>
/// <returns>The <see cref="System.Byte" /> array decoded from the UA binary stream of bytes.</returns>
public byte[] ReadByteString(IBinaryDecoder decoder)
{
Int32 _length = decoder.ReadInt32();
if (_length < 0)
{
return(null);
}
return(decoder.ReadBytes(_length));
}
/// <summary>
/// Reads the <see cref="string" /> from UA binary encoded stream of bytes encoded as a sequence of UTF8 characters without a null terminator and preceded by the length in bytes.
/// The length in bytes is encoded as Int32. A value of −1 is used to indicate a ‘null’ string.
/// </summary>
/// <param name="decoder">The decoder <see cref="IBinaryDecoder" /> to be used to read form the stream.</param>
/// <returns>The <see cref="string" /> decoded from the UA binary stream of bytes.</returns>
/// <exception cref="System.NotImplementedException"></exception>
public string ReadString(IBinaryDecoder decoder)
{
int length = decoder.ReadInt32();
if (length == -1)
{
return(null);
}
byte[] bytes = decoder.ReadBytes(length);
return(new UTF8Encoding().GetString(bytes, 0, bytes.Length));
}