//[InlineData(1000000)]
//[InlineData(10000000)]
//[InlineData(100000000)]
public void ArrayPoolTest1(int count)
{
var arrayPool = ArrayPool <byte> .Create();
while (count >= 0)
{
var buffer = arrayPool.Rent(4096);
byte[] bytes = "7E 7D 02 7D 01 7D 02 7D 01 7E".ToHexBytes();
var jT808MessagePackReader = new JT808MessagePackReader(bytes);
jT808MessagePackReader.Decode(buffer);
try
{
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
Assert.Equal(0x7E, jT808MessagePackReader.ReadByte());
Assert.Equal(0x7D, jT808MessagePackReader.ReadByte());
Assert.Equal(0x7E, jT808MessagePackReader.ReadByte());
Assert.Equal(0x7D, jT808MessagePackReader.ReadByte());
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
Assert.Equal(6, jT808MessagePackReader.ReaderCount);
}
catch (Exception)
{
}
finally
{
arrayPool.Return(buffer);
count--;
}
}
}
public void ReadStringTest(string str)
{
byte[] bytes = "7E736D616C6C636869284B6F696B65297E".ToHexBytes();
JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes);
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
Assert.Equal(str, jT808MessagePackReader.ReadString(str.Length));
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
}
public void ReadBCDTest2()
{
byte[] bytes = "7E 12 34 7E".ToHexBytes();
JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes);
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
Assert.Equal("1234", jT808MessagePackReader.ReadBCD(5));
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
}
public void ReadArrayTest()
{
byte[] bytes = "7E 01 02 03 7E".ToHexBytes();
JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes);
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
Assert.Equal(new byte[] { 0x01, 0x02, 0x03 }, jT808MessagePackReader.ReadArray(3).ToArray());
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
}
public void ReadHexTest(string hexStr)
{
byte[] bytes = "7E0000000000000000000000ABCDEF12347E".ToHexBytes();
JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes);
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
//0000000000000000000000ABCDEF1234
Assert.Equal(hexStr, jT808MessagePackReader.ReadHex(16));
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
}
public void ReadDateTimeTest()
{
byte[] bytes = "7E 07 E3 06 19 23 23 23 00 7B 19 06 19 23 23 23 7E".ToHexBytes();
JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes);
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
Assert.Equal(DateTime.Parse("2019-06-19"), jT808MessagePackReader.ReadDateTime4());
Assert.Equal(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 23, 23, 23, 123), jT808MessagePackReader.ReadDateTime5());
Assert.Equal(DateTime.Parse("2019-06-19 23:23:23"), jT808MessagePackReader.ReadDateTime6());
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
}
public void ReadDateTimeNullTest()
{
byte[] bytes = "7E0000000000000000000000000000007E".ToHexBytes();
JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes);
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
Assert.Null(jT808MessagePackReader.ReadDateTimeNull_YYYYMMDD());
Assert.Null(jT808MessagePackReader.ReadDateTimeNull_HHmmssfff());
Assert.Null(jT808MessagePackReader.ReadDateTimeNull_yyMMddHHmmss());
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
}
public void ReadDateTimeTest()
{
byte[] bytes = "7E2019061923232301231906192323237E".ToHexBytes();
JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes);
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
Assert.Equal(DateTime.Parse("2019-06-19"), jT808MessagePackReader.ReadDateTime_YYYYMMDD());
Assert.Equal(new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 23, 23, 23, 123), jT808MessagePackReader.ReadDateTime_HHmmssfff());
Assert.Equal(DateTime.Parse("2019-06-19 23:23:23"), jT808MessagePackReader.ReadDateTime_yyMMddHHmmss());
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
}
public void ReadDateTimeNullTest()
{
byte[] bytes = "7E0000000000000000000000000000007E".ToHexBytes();
JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes);
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
Assert.Null(jT808MessagePackReader.ReadDateTimeNull4());
Assert.Null(jT808MessagePackReader.ReadDateTimeNull5());
Assert.Null(jT808MessagePackReader.ReadDateTimeNull6());
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
}
public void ReadNumericalTest()
{
byte[] bytes = "7E 01 00 10 00 00 00 20 00 00 00 40 7E".ToHexBytes();
JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes);
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
Assert.Equal(0x01, jT808MessagePackReader.ReadByte());
Assert.Equal(16, jT808MessagePackReader.ReadUInt16());
Assert.Equal(32, jT808MessagePackReader.ReadInt32());
Assert.Equal((uint)64, jT808MessagePackReader.ReadUInt32());
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
}
public void ReadEncodeTest()
{
byte[] bytes = "7E 7D 02 7D 01 7D 02 7D 01 7E".ToHexBytes();
JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes);
jT808MessagePackReader.Decode(new byte[4096]);
Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart());
Assert.Equal(0x7E, jT808MessagePackReader.ReadByte());
Assert.Equal(0x7D, jT808MessagePackReader.ReadByte());
Assert.Equal(0x7E, jT808MessagePackReader.ReadByte());
Assert.Equal(0x7D, jT808MessagePackReader.ReadByte());
Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd());
Assert.Equal(6, jT808MessagePackReader.ReaderCount);
}
public JT808HeaderPackage Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
{
// 1. 验证校验和
if (!config.SkipCRCCode)
{
if (reader.CheckXorCodeVali)
{
throw new JT808Exception(JT808ErrorCode.CheckCodeNotEqual, $"{reader.RealCheckXorCode}!={reader.CalculateCheckXorCode}");
}
}
JT808HeaderPackage jT808Package = new JT808HeaderPackage();
// ---------------开始解包--------------
// 2.读取起始位置
jT808Package.Begin = reader.ReadStart();
// 3.读取头部信息
jT808Package.Header = new JT808Header();
// 3.1.读取消息Id
jT808Package.Header.MsgId = reader.ReadUInt16();
// 3.2.读取消息体属性
jT808Package.Header.MessageBodyProperty = new JT808HeaderMessageBodyProperty();
ushort messageBodyPropertyValue = reader.ReadUInt16();
// 3.2.1.解包消息体属性
jT808Package.Header.MessageBodyProperty.Unwrap(messageBodyPropertyValue, config);
// 3.3.读取终端手机号
jT808Package.Header.TerminalPhoneNo = reader.ReadBCD(config.TerminalPhoneNoLength);
// 3.4.读取消息流水号
jT808Package.Header.MsgNum = reader.ReadUInt16();
// 3.5.判断有无分包
if (jT808Package.Header.MessageBodyProperty.IsPackge)
{
//3.5.1.读取消息包总数
jT808Package.Header.MessageBodyProperty.PackgeCount = reader.ReadUInt16();
//3.5.2.读取消息包序号
jT808Package.Header.MessageBodyProperty.PackageIndex = reader.ReadUInt16();
}
// 4.处理数据体
// 4.1.判断有无数据体
if (jT808Package.Header.MessageBodyProperty.DataLength > 0)
{
jT808Package.Bodies = reader.ReadContent().ToArray();
}
// 5.读取校验码
jT808Package.CheckCode = reader.ReadByte();
// 6.读取终止位置
jT808Package.End = reader.ReadEnd();
// ---------------解包完成--------------
return(jT808Package);
}
/// <summary>
///
/// </summary>
/// <param name="reader"></param>
/// <param name="config"></param>
/// <returns></returns>
public JT808Package Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
{
// 1. 验证校验和
if (!config.SkipCRCCode)
{
if (!reader.CheckXorCodeVali)
{
throw new JT808Exception(JT808ErrorCode.CheckCodeNotEqual, $"{reader.RealCheckXorCode}!={reader.CalculateCheckXorCode}");
}
}
JT808Package jT808Package = new JT808Package();
// ---------------开始解包--------------
// 2.读取起始位置
jT808Package.Begin = reader.ReadStart();
// 3.读取头部信息
jT808Package.Header = new JT808Header();
// 3.1.读取消息Id
jT808Package.Header.MsgId = reader.ReadUInt16();
// 3.2.读取消息体属性
jT808Package.Header.MessageBodyProperty = new JT808HeaderMessageBodyProperty(reader.ReadUInt16());
if (reader.Version == JT808Version.JTT2013Force)
{
jT808Package.Header.TerminalPhoneNo = reader.ReadBCD(config.TerminalPhoneNoLength, config.Trim);
reader.Version = JT808Version.JTT2013;
}
else
{
if (reader.Version == JT808Version.JTT2019 || jT808Package.Header.MessageBodyProperty.VersionFlag)
{
//2019版本
jT808Package.Header.ProtocolVersion = reader.ReadByte();
// 3.4.读取终端手机号
jT808Package.Header.TerminalPhoneNo = reader.ReadBCD(20, config.Trim);
reader.Version = JT808Version.JTT2019;
}
else
{
//2013版本
// 3.3.读取终端手机号
jT808Package.Header.TerminalPhoneNo = reader.ReadBCD(config.TerminalPhoneNoLength, config.Trim);
}
}
jT808Package.Version = reader.Version;
// 3.4.读取消息流水号
jT808Package.Header.MsgNum = reader.ReadUInt16();
// 3.5.判断有无分包
if (jT808Package.Header.MessageBodyProperty.IsPackage)
{
//3.5.1.读取消息包总数
jT808Package.Header.PackgeCount = reader.ReadUInt16();
//3.5.2.读取消息包序号
jT808Package.Header.PackageIndex = reader.ReadUInt16();
}
// 4.处理数据体
// 4.1.判断有无数据体
if (jT808Package.Header.MessageBodyProperty.DataLength > 0)
{
if (config.MsgIdFactory.TryGetValue(jT808Package.Header.MsgId, out object instance))
{
if (jT808Package.Header.MessageBodyProperty.IsPackage)
{
//读取分包的数据体
try
{
jT808Package.SubDataBodies = reader.ReadArray(jT808Package.Header.MessageBodyProperty.DataLength).ToArray();
}
catch (Exception ex)
{
throw new JT808Exception(JT808ErrorCode.BodiesParseError, ex);
}
}
else
{
try
{
//4.2.处理消息体
jT808Package.Bodies = JT808MessagePackFormatterResolverExtensions.JT808DynamicDeserialize(
instance,
ref reader, config);
}
catch (Exception ex)
{
throw new JT808Exception(JT808ErrorCode.BodiesParseError, ex);
}
}
}
}
// 5.读取校验码
jT808Package.CheckCode = reader.ReadByte();
// 6.读取终止位置
jT808Package.End = reader.ReadEnd();
// ---------------解包完成--------------
return(jT808Package);
}
/// <summary>
///
/// </summary>
/// <param name="reader"></param>
/// <param name="writer"></param>
/// <param name="config"></param>
public void Analyze(ref JT808MessagePackReader reader, Utf8JsonWriter writer, IJT808Config config)
{
// ---------------开始解析对象--------------
writer.WriteStartObject();
// 1. 验证校验和
if (!reader.CheckXorCodeVali)
{
writer.WriteString("检验和错误", $"{reader.RealCheckXorCode}!={reader.CalculateCheckXorCode}");
}
// 2.读取起始位置
byte start = reader.ReadEnd();
writer.WriteNumber($"[{start.ReadNumber()}]开始", start);
var msgid = reader.ReadUInt16();
writer.WriteNumber($"[{msgid.ReadNumber()}]消息Id", msgid);
ushort messageBodyPropertyValue = reader.ReadUInt16();
var headerMessageBodyProperty = new JT808HeaderMessageBodyProperty(messageBodyPropertyValue);
//消息体属性对象 开始
writer.WriteStartObject("消息体属性对象");
ReadOnlySpan <char> messageBodyPropertyReadOnlySpan = messageBodyPropertyValue.ReadBinary();
writer.WriteNumber($"[{messageBodyPropertyReadOnlySpan.ToString()}]消息体属性", messageBodyPropertyValue);
if (reader.Version == JT808Version.JTT2013Force)
{
reader.Version = JT808Version.JTT2013;
writer.WriteString("版本号", JT808Version.JTT2013.ToString());
writer.WriteNumber("[bit15]保留", 0);
writer.WriteNumber("[bit14]保留", 0);
writer.WriteBoolean("[bit13]是否分包", headerMessageBodyProperty.IsPackage);
writer.WriteString("[bit10~bit12]数据加密", headerMessageBodyProperty.Encrypt.ToString());
writer.WriteNumber("[bit0~bit9]消息体长度", headerMessageBodyProperty.DataLength);
writer.WriteEndObject();
//2013版本
// 3.3.读取终端手机号
var terminalPhoneNo = reader.ReadBCD(config.TerminalPhoneNoLength, false);
//消息体属性对象 结束
writer.WriteString($"[{terminalPhoneNo.PadLeft(config.TerminalPhoneNoLength, '0')}]终端手机号", terminalPhoneNo);
}
else
{
if (reader.Version == JT808Version.JTT2019 || headerMessageBodyProperty.VersionFlag)
{
reader.Version = JT808Version.JTT2019;
writer.WriteString("版本号", JT808Version.JTT2019.ToString());
writer.WriteNumber("[bit15]保留", 0);
writer.WriteBoolean("[bit14]协议版本标识", headerMessageBodyProperty.VersionFlag);
writer.WriteBoolean("[bit13]是否分包", headerMessageBodyProperty.IsPackage);
writer.WriteString("[bit10~bit12]数据加密", headerMessageBodyProperty.Encrypt.ToString());
writer.WriteNumber("[bit0~bit9]消息体长度", headerMessageBodyProperty.DataLength);
//消息体属性对象 结束
writer.WriteEndObject();
//2019版本
var protocolVersion = reader.ReadByte();
writer.WriteNumber($"[{protocolVersion.ReadNumber()}]协议版本号(2019)", protocolVersion);
// 3.4.读取终端手机号
var terminalPhoneNo = reader.ReadBCD(20, config.Trim);
writer.WriteString($"[{terminalPhoneNo.PadLeft(20, '0')}]终端手机号", terminalPhoneNo);
}
else
{
reader.Version = JT808Version.JTT2013;
writer.WriteString("版本号", JT808Version.JTT2013.ToString());
writer.WriteNumber("[bit15]保留", 0);
writer.WriteNumber("[bit14]保留", 0);
writer.WriteBoolean("[bit13]是否分包", headerMessageBodyProperty.IsPackage);
writer.WriteString("[bit10~bit12]数据加密", headerMessageBodyProperty.Encrypt.ToString());
writer.WriteNumber("[bit0~bit9]消息体长度", headerMessageBodyProperty.DataLength);
writer.WriteEndObject();
//2013版本
// 3.3.读取终端手机号
var terminalPhoneNo = reader.ReadBCD(config.TerminalPhoneNoLength, false);
//消息体属性对象 结束
writer.WriteString($"[{terminalPhoneNo.PadLeft(config.TerminalPhoneNoLength, '0')}]终端手机号", terminalPhoneNo);
}
}
// 3.4.读取消息流水号
var msgNum = reader.ReadUInt16();
writer.WriteNumber($"[{msgNum.ReadNumber()}]消息流水号", msgNum);
// 3.5.判断有无分包
uint packgeCount = 0, packageIndex = 0;
if (headerMessageBodyProperty.IsPackage)
{
//3.5.1.读取消息包总数
packgeCount = reader.ReadUInt16();
writer.WriteNumber($"[{packgeCount.ReadNumber()}]消息包总数", packgeCount);
//3.5.2.读取消息包序号
packageIndex = reader.ReadUInt16();
writer.WriteNumber($"[{packageIndex.ReadNumber()}]消息包序号", packageIndex);
}
// 4.处理数据体
// 4.1.判断有无数据体
if (headerMessageBodyProperty.DataLength > 0)
{
//数据体属性对象 开始
writer.WriteStartObject("数据体对象");
string description = "数据体";
if (headerMessageBodyProperty.IsPackage)
{
//读取分包的数据体
try
{
writer.WriteString($"[分包]数据体", reader.ReadArray(reader.ReadCurrentRemainContentLength()).ToArray().ToHexString());
}
catch (IndexOutOfRangeException ex)
{
writer.WriteString($"数据体解析异常,无可用数据体进行解析", ex.StackTrace);
}
catch (ArgumentOutOfRangeException ex)
{
writer.WriteString($"[分包]数据体解析异常,无可用数据体进行解析", ex.StackTrace);
}
catch (Exception ex)
{
writer.WriteString($"[分包]数据体异常", ex.StackTrace);
}
}
else
{
if (config.MsgIdFactory.TryGetValue(msgid, out object instance))
{
if (instance is IJT808Description jT808Description)
{
//4.2.处理消息体
description = jT808Description.Description;
}
try
{
//数据体长度正常
writer.WriteString($"{description}", reader.ReadVirtualArray(reader.ReadCurrentRemainContentLength()).ToArray().ToHexString());
if (instance is IJT808Analyze analyze)
{
//4.2.处理消息体
analyze.Analyze(ref reader, writer, config);
}
}
catch (IndexOutOfRangeException ex)
{
writer.WriteString($"数据体解析异常,无可用数据体进行解析", ex.StackTrace);
}
catch (ArgumentOutOfRangeException ex)
{
writer.WriteString($"数据体解析异常,无可用数据体进行解析", ex.StackTrace);
}
catch (Exception ex)
{
writer.WriteString($"数据体异常", ex.StackTrace);
}
}
else
{
writer.WriteString($"[未知]数据体", reader.ReadArray(reader.ReadCurrentRemainContentLength()).ToArray().ToHexString());
}
}
//数据体属性对象 结束
writer.WriteEndObject();
}
else
{
if (config.MsgIdFactory.TryGetValue(msgid, out object instance))
{
//数据体属性对象 开始
writer.WriteStartObject("数据体对象");
string description = "[Null]数据体";
if (instance is IJT808Description jT808Description)
{
//4.2.处理消息体
description = jT808Description.Description;
}
writer.WriteNull(description);
//数据体属性对象 结束
writer.WriteEndObject();
}
else
{
writer.WriteNull($"[Null]数据体");
}
}
try
{
// 5.读取校验码
reader.ReadByte();
writer.WriteNumber($"[{reader.RealCheckXorCode.ReadNumber()}]校验码", reader.RealCheckXorCode);
// 6.读取终止位置
byte end = reader.ReadEnd();
writer.WriteNumber($"[{end.ReadNumber()}]结束", end);
}
catch (ArgumentOutOfRangeException ex)
{
writer.WriteString($"数据解析异常,无可用数据进行解析", ex.StackTrace);
}
catch (Exception ex)
{
writer.WriteString($"数据解析异常", ex.StackTrace);
}
finally
{
writer.WriteEndObject();
}
}
public JT808Package Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
{
// 1. 验证校验和
if (!config.SkipCRCCode)
{
if (!reader.CheckXorCodeVali)
{
throw new JT808Exception(JT808ErrorCode.CheckCodeNotEqual, $"{reader.RealCheckXorCode}!={reader.CalculateCheckXorCode}");
}
}
JT808Package jT808Package = new JT808Package();
// ---------------开始解包--------------
// 2.读取起始位置
jT808Package.Begin = reader.ReadStart();
// 3.读取头部信息
jT808Package.Header = new JT808Header();
// 3.1.读取消息Id
jT808Package.Header.MsgId = reader.ReadUInt16();
// 3.2.读取消息体属性
jT808Package.Header.MessageBodyProperty = new JT808HeaderMessageBodyProperty();
ushort messageBodyPropertyValue = reader.ReadUInt16();
// 3.2.1.解包消息体属性
jT808Package.Header.MessageBodyProperty.Unwrap(messageBodyPropertyValue, config);
// 3.3.读取终端手机号
jT808Package.Header.TerminalPhoneNo = reader.ReadBCD(config.TerminalPhoneNoLength);
// 3.4.读取消息流水号
jT808Package.Header.MsgNum = reader.ReadUInt16();
// 3.5.判断有无分包
if (jT808Package.Header.MessageBodyProperty.IsPackge)
{
//3.5.1.读取消息包总数
jT808Package.Header.MessageBodyProperty.PackgeCount = reader.ReadUInt16();
//3.5.2.读取消息包序号
jT808Package.Header.MessageBodyProperty.PackageIndex = reader.ReadUInt16();
}
// 4.处理数据体
// 4.1.判断有无数据体
if (jT808Package.Header.MessageBodyProperty.DataLength > 0)
{
Type jT808BodiesImplType = config.MsgIdFactory.GetBodiesImplTypeByMsgId(jT808Package.Header.MsgId, jT808Package.Header.TerminalPhoneNo);
if (jT808BodiesImplType != null)
{
if (jT808Package.Header.MessageBodyProperty.IsPackge)
{
if (jT808Package.Header.MessageBodyProperty.PackageIndex > 1)
{
try
{
//4.2处理第二包之后的分包数据消息体
jT808Package.Bodies = JT808SplitPackageBodiesFormatter.Instance.Deserialize(ref reader, config);
}
catch (Exception ex)
{
throw new JT808Exception(JT808ErrorCode.BodiesParseError, ex);
}
}
else
{
try
{
//4.2.处理消息体
jT808Package.Bodies = JT808MessagePackFormatterResolverExtensions.JT808DynamicDeserialize(
config.GetMessagePackFormatterByType(jT808BodiesImplType),
ref reader, config);
}
catch (Exception ex)
{
throw new JT808Exception(JT808ErrorCode.BodiesParseError, ex);
}
}
}
else
{
try
{
//4.2.处理消息体
jT808Package.Bodies = JT808MessagePackFormatterResolverExtensions.JT808DynamicDeserialize(
config.GetMessagePackFormatterByType(jT808BodiesImplType),
ref reader, config);
}
catch (Exception ex)
{
throw new JT808Exception(JT808ErrorCode.BodiesParseError, ex);
}
}
}
}
// 5.读取校验码
jT808Package.CheckCode = reader.ReadByte();
// 6.读取终止位置
jT808Package.End = reader.ReadEnd();
// ---------------解包完成--------------
return(jT808Package);
}
public JT808HeaderPackage(ref JT808MessagePackReader reader, IJT808Config config)
{
// 1. 验证校验和
if (!config.SkipCRCCode)
{
if (!reader.CheckXorCodeVali)
{
throw new JT808Exception(JT808ErrorCode.CheckCodeNotEqual, $"{reader.RealCheckXorCode}!={reader.CalculateCheckXorCode}");
}
}
// ---------------开始解包--------------
// 2.读取起始位置
this.Begin = reader.ReadStart();
// 3.读取头部信息
this.Header = new JT808Header();
// 3.1.读取消息Id
this.Header.MsgId = reader.ReadUInt16();
// 3.2.读取消息体属性
ushort messageBodyPropertyValue = reader.ReadUInt16();
// 3.2.1.解包消息体属性
this.Header.MessageBodyProperty = new JT808HeaderMessageBodyProperty(messageBodyPropertyValue);
if (this.Header.MessageBodyProperty.VersionFlag)
{
//2019版本
// 3.3.读取协议版本号
this.Header.ProtocolVersion = reader.ReadByte();
// 3.4.读取终端手机号
this.Header.TerminalPhoneNo = reader.ReadBCD(20, config.Trim);
reader.Version = JT808Version.JTT2019;
}
else
{
//2013版本
// 3.3.读取终端手机号
this.Header.TerminalPhoneNo = reader.ReadBCD(config.TerminalPhoneNoLength, config.Trim);
}
// 3.4.读取消息流水号
this.Header.MsgNum = reader.ReadUInt16();
// 3.5.判断有无分包
if (this.Header.MessageBodyProperty.IsPackage)
{
//3.5.1.读取消息包总数
this.Header.PackgeCount = reader.ReadUInt16();
//3.5.2.读取消息包序号
this.Header.PackageIndex = reader.ReadUInt16();
}
// 4.处理数据体
// 4.1.判断有无数据体
if (this.Header.MessageBodyProperty.DataLength > 0)
{
this.Bodies = reader.ReadContent();
}
else
{
this.Bodies = ReadOnlySpan <byte> .Empty;
}
// 5.读取校验码
this.CheckCode = reader.ReadByte();
// 6.读取终止位置
this.End = reader.ReadEnd();
// ---------------解包完成--------------
this.OriginalData = reader.SrcBuffer;
}