com.github.xingshuangs.iot.utils.BCDUtil Maven / Gradle / Ivy
/*
* MIT License
*
* Copyright (c) 2021-2099 Oscura (xingshuang)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.github.xingshuangs.iot.utils;
/**
* BCD码转换工具
*
* @author xingshuang
*/
public class BCDUtil {
private BCDUtil() {
// NOOP
}
public static int toInt(byte data) {
return ((data >> 4) * 10) + (data & 0x0F);
}
public static int toInt(byte[] data) {
int result = 0;
for (int i = data.length - 1; i >= 0; i--) {
result += toInt(data[i]) * Math.pow(100, i);
}
return result;
}
public static byte toByte(int data) {
if (data > 99 || data < 0) {
throw new IllegalArgumentException("data > 99 || data < 0");
}
return (byte) (((data / 10) << 4) | (data % 10));
}
}