80 lines
1.8 KiB
Java
80 lines
1.8 KiB
Java
package com.zcloud.util;
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import java.math.BigInteger;
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/**
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* 说明：权限计算帮助类
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* 作者：luoxiaobao
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* 官网：www.qdkjchina.com
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*/
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public class RightsHelper {
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/**
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* 利用BigInteger对权限进行2的权的和计算
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* @param rights int型权限编码数组
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* @return 2的权的和
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*/
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public static BigInteger sumRights(int[] rights){
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BigInteger num = new BigInteger("0");
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for(int i=0; i<rights.length; i++){
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num = num.setBit(rights[i]);
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}
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return num;
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}
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/**
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* 利用BigInteger对权限进行2的权的和计算
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* @param rights String型权限编码数组
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* @return 2的权的和
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*/
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public static BigInteger sumRights(String[] rights){
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BigInteger num = new BigInteger("0");
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for(int i=0; i<rights.length; i++){
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num = num.setBit(Integer.parseInt(rights[i]));
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}
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return num;
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}
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/**
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* 测试是否具有指定编码的权限
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* @param sum
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* @param targetRights
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* @return
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*/
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public static boolean testRights(BigInteger sum,int targetRights){
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return sum.testBit(targetRights);
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}
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/**
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* 测试是否具有指定编码的权限
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* @param sum
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* @param targetRights
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* @return
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*/
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public static boolean testRights(String sum,int targetRights){
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if(Tools.isEmpty(sum))
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return false;
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return testRights(new BigInteger(sum),targetRights);
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}
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/**
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* 测试是否具有指定编码的权限
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* @param sum
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* @param targetRights
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* @return
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*/
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public static boolean testRights(String sum,String targetRights){
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if(Tools.isEmpty(sum))
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return false;
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return testRights(new BigInteger(sum),targetRights);
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}
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/**
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* 测试是否具有指定编码的权限
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* @param sum
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* @param targetRights
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* @return
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*/
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public static boolean testRights(BigInteger sum,String targetRights){
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return testRights(sum,Integer.parseInt(targetRights));
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}
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}
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