45 lines
1.3 KiB
C#
45 lines
1.3 KiB
C#
using Sick.SafetyScanners.DataStructures;
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using Sick.SafetyScanners.Helpers;
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using System.Text;
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namespace Sick.SafetyScanners.DataProcessing;
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/// <summary>
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/// Parser for OrderNumber response from COLA2 variable command
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/// Thread-safe implementation
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/// </summary>
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public sealed class ParseOrderNumber
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{
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/// <summary>
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/// Parses the order number from a TCP sequence (COLA2 response)
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/// Matches: ParseOrderNumber::parseTCPSequence in C++
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/// </summary>
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public OrderNumber ParseTcpSequence(PacketBuffer buffer)
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{
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var span = buffer.GetBufferSpan();
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return new OrderNumber
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{
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Number = ReadOrderNumber(span)
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};
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}
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/// <summary>
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/// Reads order number from buffer
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/// Matches: ParseOrderNumber::readOrderNumber in C++
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/// </summary>
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private string ReadOrderNumber(ReadOnlySpan<byte> span)
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{
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ushort stringLength = ReadWriteHelper.ReadUint16LittleEndian(span, 0);
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var numberBuilder = new StringBuilder(stringLength);
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for (ushort i = 0; i < stringLength; i++)
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{
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ushort ch = ReadWriteHelper.ReadUint8(span, 2 + i);
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numberBuilder.Append((char)ch);
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}
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return numberBuilder.ToString();
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}
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}
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