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);
}
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;
}
