package com.j2eefast.framework.sys.entity.server;

import cn.hutool.core.date.BetweenFormater.Level;
import cn.hutool.core.date.DateUtil;
import cn.hutool.core.util.NumberUtil;

import java.lang.management.ManagementFactory;
import java.util.Date;

public class JvmEntity
{
    /**
     * 当前JVM占用的内存总数(M)
     */
    private double total;

    /**
     * JVM最大可用内存总数(M)
     */
    private double max;

    /**
     * JVM空闲内存(M)
     */
    private double free;

    /**
     * JDK版本
     */
    private String version;

    /**
     * JDK路径
     */
    private String home;

    public double getTotal()
    {
        return NumberUtil.div(total, (1024 * 1024), 2);
    }

    public void setTotal(double total)
    {
        this.total = total;
    }

    public double getMax()
    {
        return NumberUtil.div(max, (1024 * 1024), 2);
    }

    public void setMax(double max)
    {
        this.max = max;
    }

    public double getFree()
    {
        return NumberUtil.div(free, (1024 * 1024), 2);
    }

    public void setFree(double free)
    {
        this.free = free;
    }

    public double getUsed()
    {
        return NumberUtil.div(total - free, (1024 * 1024), 2);
    }

    public double getUsage()
    {
        return NumberUtil.mul(NumberUtil.div(total - free, total, 4), 100);
    }

    /**
     * 获取JDK名称
     */
    public String getName()
    {
        return ManagementFactory.getRuntimeMXBean().getVmName();
    }

    public String getVersion()
    {
        return version;
    }

    public void setVersion(String version)
    {
        this.version = version;
    }

    public String getHome()
    {
        return home;
    }

    public void setHome(String home)
    {
        this.home = home;
    }

    /**
     * JDK启动时间
     */
    public String getStartTime()
    {
    	long time = ManagementFactory.getRuntimeMXBean().getStartTime();
    	return DateUtil.formatDateTime(new Date(time));
    }

    /**
     * JDK运行时间
     */
    public String getRunTime()
    {
    	long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return DateUtil.formatBetween(new Date(time),DateUtil.date(),Level.MILLSECOND);
    }
}
