79 lines
3.0 KiB
C#
79 lines
3.0 KiB
C#
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using JiShe.CollectBus.Common.Enums;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using JiShe.CollectBus.Common.Models;
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using System.Runtime.CompilerServices;
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namespace JiShe.CollectBus.Common.Extensions
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{
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public static class HexStringExtensions
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{
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//起始字符
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private const string startStr = "68";
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//结束字符
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private const string endStr = "16";
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//头部字节长度
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private const int hearderLen = 6;
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//消息认证码字段长度
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private const int pWLen = 16;
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private const int tPLen = 6;
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private const int FixedLength = 18;
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public static object GetAnalyzeValue(this List<string> hexStringList, CommandChunkEnum chunk)
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{
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if (hexStringList.Count < hearderLen || hexStringList[0] != startStr || hexStringList[5] != startStr || hexStringList.Count < FixedLength)
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{
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return null;
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}
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switch (chunk)
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{
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case CommandChunkEnum.AFN:
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var aFn = hexStringList[(int)CommandChunkEnum.AFN].HexToDec();//1字节
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return aFn;
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case CommandChunkEnum.FN:
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//(DT2*8)+DT1=fn
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var dt1Bin = hexStringList[(int)CommandChunkEnum.FN - 1].HexToBin();
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var dt1 = dt1Bin != "0" ? dt1Bin.Length : 0;
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var dt2 = hexStringList[(int)CommandChunkEnum.FN].HexToDec();
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var fn = dt2 * 8 + dt1;
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return fn;
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case CommandChunkEnum.A:
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var aHexList = hexStringList.Skip((int)CommandChunkEnum.A).Take(5).ToList();
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var a1 = aHexList[1] + aHexList[0];
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var a2 = aHexList[3] + aHexList[2];
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var a2Dec = a2.HexToDec();
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var a3 = aHexList[4];
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var a = $"{a1}{a2Dec.ToString().PadLeft(5, '0')}";
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var a3Bin = aHexList[4].HexToBin().PadLeft(8, '0');
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var msa = a3Bin.Substring(0, 7).BinToDec();
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return new Tuple<string,int>(a, msa);
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case CommandChunkEnum.SEQ:
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var seq = hexStringList[(int)CommandChunkEnum.SEQ].HexToBin().PadLeft(8, '0');
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var tpV = (TpV)Convert.ToInt32(seq.Substring(0, 1));
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var firfin = (FIRFIN)Convert.ToInt32(seq.Substring(1, 2));
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var con = (CON)Convert.ToInt32(seq.Substring(3, 1));
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var prseqBin = seq.Substring(4, 4);
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return new Seq
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{
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CON = con,
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FIRFIN = firfin,
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PRSEQ = prseqBin.BinToDec(),
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TpV = tpV
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};
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default:
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throw new ArgumentOutOfRangeException(nameof(chunk), chunk, null);
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}
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}
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}
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}
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