package com.dy.common.softUpgrade.parse;
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import cn.hutool.core.util.HexUtil;
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import com.dy.common.util.ByteUtil;
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import com.dy.common.util.CRC16;
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import java.io.*;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.stream.Stream;
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/**
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* @Author: liurunyu
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* @Date: 2024/11/2 8:51
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* @Description
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*/
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public class HexFileParse {
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private static final int hexFileMinLine = 4 ;
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private static final int lineHeadEndIndex = 9 ;
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private static final int lineValidCharCount = 43 ;//每行有效字符（冒号与十六进制）个数，例如“:1096C000DC96010010020020203E00000441000052”，但倒数第3行不受限制
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private static final int bytesSplitUnit512 = 512 ;
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public static void main(String[] args) throws Exception{
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boolean fromBytes = false ;
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HexFileParse obj = new HexFileParse() ;
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if(!fromBytes){
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String filePath = "D:\\hexFile\\YuanMu_20250116_01.hex";
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//File file = new File(filePath) ;
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HexFileVo vo = obj.doParse(filePath) ;
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System.out.println(vo.toString());
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}else{
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String filePath = "D:\\hexFile\\YuanMu_20250116_01.hex";
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File file = new File(filePath) ;
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byte[] fileContent = new byte[(int)file.length()] ;
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FileInputStream fileInputStream = new FileInputStream(file) ;
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fileInputStream.read(fileContent) ;
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HexFileVo vo = obj.doParse(fileContent) ;
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System.out.println(vo.toString());
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}
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}
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/**
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* 解析Hex文件
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* @param path
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* @return
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* @throws Exception
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*/
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public HexFileVo doParse(String path) throws Exception {
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File file = new File(path) ;
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return this.doParse(file) ;
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}
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/**
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* 解析Hex文件
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* @param file
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* @return
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* @throws Exception
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*/
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public HexFileVo doParse(File file) throws Exception{
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if(file == null){
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throw new Exception("Hex文件对象为null") ;
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}
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if(!file.exists()){
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throw new Exception("Hex文件不存在") ;
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}
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Stream<String> linesStream = new BufferedReader(new FileReader(file)).lines() ;
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List<String> lineList = linesStream.toList() ;
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HexFileVo vo = new HexFileVo() ;
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this.checkAndCalculate(vo, lineList);
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this.parse(vo, lineList);
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this.splitBytesByUnit512(vo);
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this.calculateCrc(vo);
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return vo ;
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}
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/**
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* 解析Hex文件
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* @param fileContent
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* @return
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* @throws Exception
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*/
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public HexFileVo doParse(byte[] fileContent) throws Exception{
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if(fileContent == null || fileContent.length == 0){
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throw new Exception("Hex文件对象为null") ;
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}
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ByteArrayInputStream byteInputStream = new ByteArrayInputStream(fileContent);
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Stream<String> linesStream = new BufferedReader(new InputStreamReader(byteInputStream)).lines() ;
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List<String> lineList = linesStream.toList() ;
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HexFileVo vo = new HexFileVo() ;
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this.checkAndCalculate(vo, lineList);
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this.parse(vo, lineList);
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this.splitBytesByUnit512(vo);
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this.calculateCrc(vo);
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return vo ;
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}
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/**
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* 合法性检查，并计算数据包数
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* @param vo
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* @param lineList
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* @throws Exception
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*/
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private void checkAndCalculate(HexFileVo vo, List<String> lineList) throws Exception{
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if(lineList == null){
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throw new Exception("Hex文件内容为空") ;
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}
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vo.totalLines = lineList.size() ;
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if(vo.totalLines <= 0){
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throw new Exception("Hex文件内容为空") ;
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}
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if(vo.totalLines < hexFileMinLine){
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throw new Exception("Hex文件内容行数" + vo.totalLines + "不正确(最小行数" + hexFileMinLine +")") ;
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}
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vo.calculateBytes = ((((vo.totalLines - 4) * 32) / 1024)
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+ ((((vo.totalLines - 4) * 32) % 1024) > 0?1 : 0))
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* 512 ;
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}
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/**
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* 解析Hex文件内容，组合成一个大数据包
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* @param vo
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* @param lineList
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* @throws Exception
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*/
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private void parse(HexFileVo vo, List<String> lineList) throws Exception{
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int counter = 0 ;
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for(String line : lineList){
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if(counter == 0){
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// 文件头
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}else if(counter == vo.totalLines - 2){
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// 文件尾倒数第2行
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}else if(counter == vo.totalLines - 1){
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// 文件尾倒数第1行
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}else{
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// 文件内容
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if(line == null){
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vo.errors.add("第" + counter + "行内容为空") ;
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}else{
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line = line.trim() ;
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if(line.length() == 0){
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vo.errors.add("第" + counter + "行内容为空") ;
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}else{
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if(!line.startsWith(":")){
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vo.errors.add("第" + counter + "行内容不是以:开头") ;
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}else{
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if(counter != vo.totalLines - 3 && line.length() != lineValidCharCount){
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//无效数据，舍弃本行数据
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}else{
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line = line.substring(lineHeadEndIndex, line.length() - 2) ;
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if(vo.bytes.length == 0){
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vo.bytes = HexUtil.decodeHex(line) ;
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}else{
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byte[] bytes = HexUtil.decodeHex(line) ;
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vo.bytes = ByteUtil.bytesMerge(vo.bytes, bytes) ;
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}
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}
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}
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}
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}
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}
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counter ++ ;
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}
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}
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/**
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* 以512为单位分割数据包
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* @param bytes
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*/
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public List<byte[]> splitBytesByUnit512(byte[] bytes){
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List<byte[]> listByte512 = new ArrayList<>();
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if(bytes != null && bytes.length > 0){
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int index = 0 ;
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while (true){
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if(index < bytes.length){
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byte[] bs = ByteUtil.bytesSplit(bytes, index, bytesSplitUnit512) ;
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listByte512.add(bs) ;
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}else{
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break ;
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}
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index += bytesSplitUnit512;
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}
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}
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return listByte512 ;
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}
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/**
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* 以512为单位分割数据包
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* @param vo
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*/
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private void splitBytesByUnit512(HexFileVo vo){
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if(vo.bytes != null && vo.bytes.length > 0){
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vo.realBytes += vo.bytes.length ;
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int index = 0 ;
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while (true){
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if(index < vo.bytes.length){
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byte[] bytes = ByteUtil.bytesSplit(vo.bytes, index, bytesSplitUnit512) ;
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vo.listByte512.add(bytes) ;
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vo.totalBytes512 += bytes.length ;
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}else{
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break ;
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}
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index += bytesSplitUnit512;
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}
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}
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}
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/**
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* 计算CRC16
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* @param vo
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*/
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private void calculateCrc(HexFileVo vo){
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int crc = 0xffff ;
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if(vo.listByte512 != null && vo.listByte512.size() > 0){
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CRC16 crc16 = new CRC16() ;
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for(byte[] bs : vo.listByte512){
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crc = crc16.CRC16_table(bs.length, bs, crc) ;
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}
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}
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vo.bytesCrc16 = crc ;
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}
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}
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