package com.sandu.ximon.admin.manager.iot.rrpc.util;
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import com.sandu.ximon.admin.dto.RemoteFileDto;
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import com.sandu.ximon.admin.utils.HexUtils;
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import org.apache.catalina.LifecycleState;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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/**
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* @author ZZQ
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* @date 2022/5/5 14:26
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*/
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public class FileProcessingUtils {
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// public static void main(String[] args) {
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// try {
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// RemoteFileDto remoteFileDto = read("C:\\Users\\Administrator\\Desktop\\test\\H01_v3.0.12.min.dhcp.bin");
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// System.out.println(remoteFileDto.getListSize());
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// System.out.println(remoteFileDto.getList().size());
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// System.out.println(Arrays.toString(remoteFileDto.getList().get(0)));
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// } catch (IOException e) {
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// e.printStackTrace();
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// }
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// }
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public static RemoteFileDto read(String filePath) throws IOException {
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List<String> data = new ArrayList<>();
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int dataSize = 0;
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StringBuffer fileHexStr=new StringBuffer();
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File file = new File(filePath);
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InputStream in = new FileInputStream(file);
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// 一次性取多少个字节
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byte[] bytes = new byte[512];
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// 读取到的字节数组长度，为-1时表示没有数据
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int length = 0;
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// 循环取数据
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while ((length = in.read(bytes)) != -1) {
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String temp=HexUtils.encodeHexStr(Arrays.copyOf(bytes, length));
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data.add(temp);
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fileHexStr.append(temp);
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dataSize += length;
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}
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in.close();
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RemoteFileDto remoteFileDto = new RemoteFileDto();
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remoteFileDto.setList(data);
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remoteFileDto.setListSize(dataSize);
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remoteFileDto.setFileHexStr(fileHexStr.toString());
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return remoteFileDto;
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}
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}
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