package com.boying.util;

import java.util.Arrays;
import java.util.UUID;

public class StringUtil {

    public static boolean isNullOrEmpty(String str) {
        if (null == str || "".equalsIgnoreCase(str.trim())
                || "null".equals(str.trim())) {
            return true;
        }
        return false;
    }
    public static byte[] convertNum(String s){
        String[] split = s.split("-");
        byte[] bytes = new byte[split.length];
        for (int i = 0; i < split.length; i++) {
            String s1 = split[i];
            byte b = Byte.parseByte("0x"+s1);
            bytes[i]=b;
        }
        return bytes;
    }

    public static String toStr(String[] strs){
        String s = Arrays.toString(strs);
        String substring = s.substring(1, s.length() - 1);
        String s1 = substring.replaceAll(",", "");
        String s2 = s1.replaceAll(" ", "");
        return s2;
    }

    public static String getUUID() {
        return UUID.randomUUID().toString().replaceAll("-", "");
    }

    /**
     * 将指定byte数组以16进制的形式打印到控制台
     *
     * @param hint String
     * @param b    byte[]
     * @return void
     */
    public static void printHexString(String hint, byte[] b) {
        System.out.print(hint);
        for (int i = 0; i < b.length; i++) {
            String hex = Integer.toHexString(b[i] & 0xFF);
            if (hex.length() == 1) {
                hex = '0' + hex;
            }
            System.out.print(hex.toUpperCase() + " ");
        }
    }

    /**
     * @param b byte[]
     * @return String
     */
    public static String Bytes2HexString(byte[] b) {
        String ret = "";
        for (int i = 0; i < b.length; i++) {
            String hex = Integer.toHexString(b[i] & 0xFF);
            if (hex.length() == 1) {
                hex = '0' + hex;
            }
            ret += " 0x" + hex.toUpperCase();
        }
        return ret;
    }

    /**
     * 将指定字符串src，以每两个字符分割转换为16进制形式 如："2B44EFD9" –> byte[]{0x2B, 0×44, 0xEF,
     * 0xD9}
     *
     * @param src String
     * @return byte[]
     */
    public static byte[] HexString2Bytes(String src) {
        if (null == src || 0 == src.length()) {
            return null;
        }
        String s1 = src.replaceAll("-", "");
        byte[] ret = new byte[s1.length() / 2];
        byte[] tmp = s1.getBytes();
        for (int i = 0; i < (tmp.length / 2); i++) {
            ret[i] = uniteBytes(tmp[i * 2], tmp[i * 2 + 1]);
        }
        return ret;
    }

    /**
     * 将两个ASCII字符合成一个字节； 如："EF"–> 0xEF
     *
     * @param src0 byte
     * @param src1 byte
     * @return byte
     */
    public static byte uniteBytes(byte src0, byte src1) {
        byte _b0 = Byte.decode("0x" + new String(new byte[]{src0})).byteValue();
        _b0 = (byte) (_b0 << 4);
        byte _b1 = Byte.decode("0x" + new String(new byte[]{src1})).byteValue();
        byte ret = (byte) (_b0 ^ _b1);
        return ret;
    }

    public static void main(String[] args) {
        String s = "00-64-FF-FF-6E-78-00-04-00-01-01-02-00-FF-00-00-00-09-E4-BA-AC-41-38-38-38-38-38-0D-01-01-01-02-00-FF-00-00-00-09-E4-B8-B4-E6-97-B6-E8-BD-A6-0D-02-01-01-02-00-FF-00-00-00-0C-E6-AC-A2-E8-BF-8E-E5-85-89-E4-B8-B4-0D-03-01-01-02-00-FF-00-00-00-09-E4-BD-99-E4-BD-8D-3A-37-34-00-0A-20-E4-B8-B4-E6-97-B6-E8-BD-A6-2C-E4-BA-AC-41-38-38-38-38-38-2C-E6-AC-A2-E8-BF-8E-E5-85-89-E4-B8-B4-00-6B-E7";
        String s1 = s.replaceAll("-", "");
        byte[] bytes = HexString2Bytes(s1);
        for (byte aByte : bytes) {
            System.out.print(aByte + " ");
        }
    }
}