package com.zy.common.utils;

import java.math.BigDecimal;

/**
 * Created by vincent on 2020-06-03
 */
public class CommonUtils {

    public static Integer parseInt(Object value){
        if(null == value){
            return null;
        }
        String name = value.getClass().getSimpleName().toLowerCase();
        if(name.equals("float")){
            return ((Float)value).intValue();
        } else if(name.equals("double")){
            return ((Double)value).intValue();
        } else if(name.equals("bigdecimal")) {
            return ((BigDecimal)value).intValue();
        } else if(name.equals("long")) {
            return ((Long)value).intValue();
        } else if(name.contains("int")) {
            return (Integer)value;
        } else {
            return Double.valueOf(""+value).intValue();
        }
    }

    public static boolean isNumeric(String str) {
        // 如果字符串为空，直接返回false
        if (str == null || str.length() == 0) {
            return false;
        }
        // 用正则表达式匹配数字
        return str.matches("-?\\d+(\\.\\d+)?");
    }

    public static boolean isBoolean(String str) {
        if (str == null) {
            return false;
        }

        if (str.length() == 4 || str.length() == 5) {
            if (str.equals("true") || str.equals("false")) {
                return true;
            }
        }

        return false;
    }


}