package com.flightfeather.obd.socket
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import com.flightfeather.obd.common.utils.FileUtil
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import com.flightfeather.obd.repository.*
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import com.flightfeather.obd.socket.bean.ObdPackageData
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import com.flightfeather.obd.socket.decoder.VehicleDataDecoder
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import com.flightfeather.obd.socket.decoder.impl.DataPackageDecoderImpl
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import com.flightfeather.obd.socket.eunm.ObdCommandUnit
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import io.netty.channel.ChannelHandlerContext
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import org.springframework.beans.factory.annotation.Autowired
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import org.springframework.stereotype.Component
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import java.text.SimpleDateFormat
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import java.util.*
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import javax.annotation.PostConstruct
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/**
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* 处理socket接收的消息
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* Date: 2019.8.27
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* @author riku
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*/
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@Component
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class MessageManager{
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companion object{
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private lateinit var instance: MessageManager
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}
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@Autowired
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lateinit var obdDataRepository: ObdDataRepository
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@Autowired
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lateinit var originDataRepository: OriginDataRepository
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@Autowired
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lateinit var obdInfoRepository: ObdInfoRepository
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@Autowired
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lateinit var dataStreamRepository: DataStreamRepository
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@Autowired
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lateinit var carLogoutRepository: CarLogoutRepository
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@Autowired
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lateinit var carLoginRepository: CarLoginRepository
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val vehicleDataDecoder = VehicleDataDecoder()
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val dataPackageDecoder = DataPackageDecoderImpl()
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@PostConstruct
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fun init() {
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instance = this
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instance.obdDataRepository = this.obdDataRepository
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instance.originDataRepository = this.originDataRepository
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instance.obdInfoRepository = this.obdInfoRepository
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instance.dataStreamRepository = this.dataStreamRepository
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instance.carLogoutRepository = this.carLogoutRepository
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instance.carLoginRepository = this.carLoginRepository
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}
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fun dealStringMsg(msg: String, ctx: ChannelHandlerContext?) {
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saveToTxt(msg)
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if (bccCheck(msg)) {
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//解包
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val packageData = vehicleDataDecoder.decode(msg)
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//保存
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DeviceSession.saveDevice(packageData.deviceCode, ctx)
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saveToDataBase(packageData, msg)
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} else {
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println("------数据BCC校验失败，舍弃 [${SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(Date())}]")
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}
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}
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/**
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* 保存至txt文本
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*/
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fun saveToTxt(msg: String) {
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val data = "[${SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(Date())}]data=> $msg"
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FileUtil.instance?.saveObdData(data)
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}
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/**
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* 保存至数据库
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*/
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fun saveToDataBase(packageData: ObdPackageData, msg: String) {
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instance.obdDataRepository.saveObdData(packageData)
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instance.originDataRepository.saveOriginData(packageData, msg)
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when (packageData.commandUnit) {
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ObdCommandUnit.CarRegister.value -> instance.carLoginRepository.saveCarLogin(packageData)
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ObdCommandUnit.RealTimeData.value,
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ObdCommandUnit.ReplacementData.value -> instance.dataStreamRepository.saveDataStream(packageData)
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ObdCommandUnit.CarLogOut.value-> instance.carLogoutRepository.saveCarLogout(packageData)
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}
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}
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/**
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* BCC（异或校验）
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*/
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fun bccCheck(msg: String):Boolean {
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val list = mutableListOf<String>().apply {
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addAll(dataPackageDecoder.toStringList(msg))
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//去除2 位起始符
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removeAt(0)
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removeAt(0)
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}
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//取得数据包中的bcc校验结果
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val oldBcc = list[list.size - 1].toInt(16)
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//去除校验结果
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list.removeAt(list.size-1)
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//计算bcc校验结果
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var newBcc = 0x00
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list.forEach {
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newBcc = newBcc.xor(it.toInt(16))
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}
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//返回校验结果是否正确
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return oldBcc == newBcc
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}
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}
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