public int Serialize(ref byte[] bytes, int offset, JT808_0x0200 value, IJT808FormatterResolver formatterResolver) { offset += JT808BinaryExtensions.WriteLittle(ref bytes, offset, value.AlarmFlag); offset += JT808BinaryExtensions.WriteLittle(ref bytes, offset, value.StatusFlag); offset += JT808BinaryExtensions.WriteLittle(ref bytes, offset, value.Lat); offset += JT808BinaryExtensions.WriteLittle(ref bytes, offset, value.Lng); offset += JT808BinaryExtensions.WriteUInt16Little(ref bytes, offset, value.Altitude); offset += JT808BinaryExtensions.WriteUInt16Little(ref bytes, offset, value.Speed); offset += JT808BinaryExtensions.WriteUInt16Little(ref bytes, offset, value.Direction); offset += JT808BinaryExtensions.WriteLittle(ref bytes, offset, value.GPSTime); if (value.JT808LocationAttachData != null && value.JT808LocationAttachData.Count > 0) { foreach (var item in value.JT808LocationAttachData) { try { object attachImplObj = formatterResolver.GetFormatterDynamic(item.Value.GetType()); offset = JT808FormatterResolverExtensions.JT808DynamicSerialize(attachImplObj, ref bytes, offset, item.Value, formatterResolver); } catch (Exception ex) { } } } return(offset); }
public int Serialize(ref byte[] bytes, int offset, JT808_0x0900 value, IJT808FormatterResolver formatterResolver) { offset += JT808BinaryExtensions.WriteLittle(ref bytes, offset, value.PassthroughType); object obj = formatterResolver.GetFormatterDynamic(value.JT808_0x0900_BodyBase.GetType()); offset = JT808FormatterResolverExtensions.JT808DynamicSerialize(obj, ref bytes, offset, value, formatterResolver); return(offset); }
public JT808_0x0900 Deserialize(ReadOnlySpan <byte> bytes, int offset, IJT808FormatterResolver formatterResolver, out int readSize) { offset = 0; JT808_0x0900 jT808_0x0900 = new JT808_0x0900(); jT808_0x0900.PassthroughType = JT808BinaryExtensions.ReadByteLittle(bytes, ref offset); if (JT808_0x0900_BodyBase.JT808_0x0900Method.TryGetValue(jT808_0x0900.PassthroughType, out Type type)) { jT808_0x0900.JT808_0x0900_BodyBase = JT808FormatterResolverExtensions.JT808DynamicDeserialize(formatterResolver.GetFormatterDynamic(type), bytes.Slice(offset), offset, formatterResolver, out readSize); } readSize = offset; return(jT808_0x0900); }
public int Serialize(ref byte[] bytes, int offset, JT808Package value, IJT808FormatterResolver formatterResolver) { // 1. 先判断是否分包(理论下发不需分包,但为了统一还是加上分包处理) // 2. 先序列化数据体,根据数据体的长度赋值给头部,在序列化头部。 int messageBodyOffset = 0; if (value.Header.MessageBodyProperty.IsPackge) { //3. 先写入分包消息总包数、包序号 messageBodyOffset += JT808BinaryExtensions.WriteUInt16Little(ref bytes, messageBodyOffset, value.Header.MessageBodyProperty.PackgeCount); messageBodyOffset += JT808BinaryExtensions.WriteUInt16Little(ref bytes, messageBodyOffset, value.Header.MessageBodyProperty.PackageIndex); } // 4. 数据体 //JT808.Protocol.Enums.JT808MsgId 映射对应消息特性 JT808BodiesTypeAttribute jT808BodiesTypeAttribute = value.Header.MsgId.GetAttribute <JT808BodiesTypeAttribute>(); if (jT808BodiesTypeAttribute != null) { if (value.Bodies != null) { // 4.1 处理数据体 messageBodyOffset = JT808FormatterResolverExtensions.JT808DynamicSerialize(formatterResolver.GetFormatterDynamic(jT808BodiesTypeAttribute.JT808BodiesType), ref bytes, offset, value.Bodies, formatterResolver); } } byte[] messageBodyBytes = null; if (messageBodyOffset != 0) { messageBodyBytes = bytes.AsSpan().Slice(0, messageBodyOffset).ToArray(); } // ------------------------------------开始组包 // 1.起始符 offset += JT808BinaryExtensions.WriteLittle(ref bytes, offset, value.Begin); // 2.赋值头数据长度 value.Header.MessageBodyProperty.DataLength = messageBodyOffset; offset = formatterResolver.GetFormatter <JT808Header>().Serialize(ref bytes, offset, value.Header, formatterResolver); if (messageBodyOffset != 0) { Buffer.BlockCopy(messageBodyBytes, 0, bytes, offset, messageBodyOffset); offset += messageBodyOffset; } // 4.校验码 offset += JT808BinaryExtensions.WriteLittle(ref bytes, offset, bytes.ToXor(1, offset)); // 5.终止符 offset += JT808BinaryExtensions.WriteLittle(ref bytes, offset, value.End); byte[] temp = JT808Escape(bytes.AsSpan().Slice(0, offset)); Buffer.BlockCopy(temp, 0, bytes, 0, temp.Length); return(temp.Length); }
public JT808Package Deserialize(ReadOnlySpan <byte> bytes, int offset, IJT808FormatterResolver formatterResolver, out int readSize) { JT808Package jT808Package = new JT808Package(); // 转义还原——>验证校验码——>解析消息 // 1. 解码(转义还原) ReadOnlySpan <byte> buffer = JT808DeEscape(bytes, 0, bytes.Length); // 2. 验证校验码 // 2.1. 获取校验位索引 int checkIndex = buffer.Length - 2; // 2.2. 获取校验码 jT808Package.CheckCode = buffer[checkIndex]; // 2.3. 从消息头到校验码前一个字节 byte checkCode = buffer.ToXor(1, checkIndex); // 2.4. 验证校验码 if (jT808Package.CheckCode != checkCode) { throw new JT808Exception($"{jT808Package.CheckCode}!={checkCode}"); } jT808Package.Begin = buffer[offset]; offset = offset + 1; // 3.初始化消息头 try { jT808Package.Header = formatterResolver.GetFormatter <JT808Header>().Deserialize(buffer, offset, formatterResolver, out readSize); } catch (Exception ex) { throw new JT808Exception($"消息头解析错误,offset:{offset.ToString()}", ex); } offset = readSize; if (jT808Package.Header.MessageBodyProperty.DataLength != 0) { JT808BodiesTypeAttribute jT808BodiesTypeAttribute = jT808Package.Header.MsgId.GetAttribute <JT808BodiesTypeAttribute>(); if (jT808BodiesTypeAttribute != null) { if (jT808Package.Header.MessageBodyProperty.IsPackge) {//4.分包消息体 从17位开始 或 未分包消息体 从13位开始 //消息总包数2位+包序号2位=4位 offset = offset + 2 + 2; } if (jT808Package.Header.MessageBodyProperty.DataLength != 0) { try { //5.处理消息体 jT808Package.Bodies = JT808FormatterResolverExtensions.JT808DynamicDeserialize(formatterResolver.GetFormatterDynamic(jT808BodiesTypeAttribute.JT808BodiesType), buffer.Slice(offset, jT808Package.Header.MessageBodyProperty.DataLength).ToArray(), offset, formatterResolver, out readSize); } catch (Exception ex) { throw new JT808Exception($"消息体解析错误,offset:{offset.ToString()}", ex); } } } } jT808Package.End = buffer[bytes.Length - 1]; readSize = buffer.Length; return(jT808Package); }
public JT808_0x0200 Deserialize(ReadOnlySpan <byte> bytes, int offset, IJT808FormatterResolver formatterResolver, out int readSize) { offset = 0; JT808_0x0200 jT808_0X0200 = new JT808_0x0200(); jT808_0X0200.AlarmFlag = JT808BinaryExtensions.ReadInt32Little(bytes, ref offset); jT808_0X0200.StatusFlag = JT808BinaryExtensions.ReadInt32Little(bytes, ref offset); jT808_0X0200.Lat = JT808BinaryExtensions.ReadInt32Little(bytes, ref offset); jT808_0X0200.Lng = JT808BinaryExtensions.ReadInt32Little(bytes, ref offset); JT808StatusProperty jT808StatusProperty = new JT808StatusProperty(Convert.ToString(jT808_0X0200.StatusFlag, 2).PadLeft(32, '0')); if (jT808StatusProperty.Bit28 == '1')//西经 { jT808_0X0200.Lng = -jT808_0X0200.Lng; } if (jT808StatusProperty.Bit29 == '1')//南纬 { jT808_0X0200.Lat = -jT808_0X0200.Lat; } jT808_0X0200.Altitude = JT808BinaryExtensions.ReadUInt16Little(bytes, ref offset); jT808_0X0200.Speed = JT808BinaryExtensions.ReadUInt16Little(bytes, ref offset); jT808_0X0200.Direction = JT808BinaryExtensions.ReadUInt16Little(bytes, ref offset); jT808_0X0200.GPSTime = JT808BinaryExtensions.ReadDateTimeLittle(bytes, ref offset); // 位置附加信息 jT808_0X0200.JT808LocationAttachData = new Dictionary <byte, JT808LocationAttachBase>(); if (bytes.Length > 28) { int attachOffset = 0; ReadOnlySpan <byte> locationAttachMemory = bytes; ReadOnlySpan <byte> locationAttachSpan = locationAttachMemory.Slice(28); while (locationAttachSpan.Length > attachOffset) { int attachId = 1; int attachLen = 1; try { Type jT808LocationAttachType; if (JT808LocationAttachBase.JT808LocationAttachMethod.TryGetValue(locationAttachSpan[attachOffset], out jT808LocationAttachType)) { int attachContentLen = locationAttachSpan[attachOffset + 1]; int locationAttachTotalLen = attachId + attachLen + attachContentLen; byte[] attachBuffer = locationAttachSpan.Slice(attachOffset, locationAttachTotalLen).ToArray(); object attachImplObj = formatterResolver.GetFormatterDynamic(jT808LocationAttachType); dynamic attachImpl = JT808FormatterResolverExtensions.JT808DynamicDeserialize(attachImplObj, attachBuffer, attachOffset, formatterResolver, out readSize); attachOffset = attachOffset + locationAttachTotalLen; jT808_0X0200.JT808LocationAttachData.Add(attachImpl.AttachInfoId, attachImpl); } else { int attachContentLen = locationAttachSpan[attachOffset + 1]; int locationAttachTotalLen = attachId + attachLen + attachContentLen; attachOffset = attachOffset + locationAttachTotalLen; } } catch (Exception ex) { int attachContentLen = locationAttachSpan[attachOffset + 1]; int locationAttachTotalLen = attachId + attachLen + attachContentLen; attachOffset = attachOffset + locationAttachTotalLen; } } offset = offset + attachOffset; } readSize = offset; return(jT808_0X0200); }