package com.genersoft.iot.vmp.utils;
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import org.springframework.util.ObjectUtils;
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import oshi.SystemInfo;
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import oshi.hardware.*;
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import oshi.software.os.OperatingSystem;
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import oshi.util.FormatUtil;
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import java.io.File;
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import java.text.DecimalFormat;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.TimeUnit;
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/**
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* 实现参考自xiaozhangnomoney原创文章，
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* 版权声明：本文为xiaozhangnomoney原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明
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* 原文出处链接：https://blog.csdn.net/xiaozhangnomoney/article/details/107769147
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*/
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public class SystemInfoUtils {
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/**
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* 获取cpu信息
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* @return
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* @throws InterruptedException
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*/
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public static double getCpuInfo() throws InterruptedException {
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SystemInfo systemInfo = new SystemInfo();
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CentralProcessor processor = systemInfo.getHardware().getProcessor();
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long[] prevTicks = processor.getSystemCpuLoadTicks();
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// 睡眠1s
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TimeUnit.SECONDS.sleep(1);
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long[] ticks = processor.getSystemCpuLoadTicks();
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long nice = ticks[CentralProcessor.TickType.NICE.getIndex()] - prevTicks[CentralProcessor.TickType.NICE.getIndex()];
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long irq = ticks[CentralProcessor.TickType.IRQ.getIndex()] - prevTicks[CentralProcessor.TickType.IRQ.getIndex()];
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long softirq = ticks[CentralProcessor.TickType.SOFTIRQ.getIndex()] - prevTicks[CentralProcessor.TickType.SOFTIRQ.getIndex()];
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long steal = ticks[CentralProcessor.TickType.STEAL.getIndex()] - prevTicks[CentralProcessor.TickType.STEAL.getIndex()];
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long cSys = ticks[CentralProcessor.TickType.SYSTEM.getIndex()] - prevTicks[CentralProcessor.TickType.SYSTEM.getIndex()];
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long user = ticks[CentralProcessor.TickType.USER.getIndex()] - prevTicks[CentralProcessor.TickType.USER.getIndex()];
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long iowait = ticks[CentralProcessor.TickType.IOWAIT.getIndex()] - prevTicks[CentralProcessor.TickType.IOWAIT.getIndex()];
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long idle = ticks[CentralProcessor.TickType.IDLE.getIndex()] - prevTicks[CentralProcessor.TickType.IDLE.getIndex()];
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long totalCpu = user + nice + cSys + idle + iowait + irq + softirq + steal;
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return 1.0-(idle * 1.0 / totalCpu);
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}
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/**
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* 获取内存使用率
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* @return
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*/
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public static double getMemInfo(){
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SystemInfo systemInfo = new SystemInfo();
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GlobalMemory memory = systemInfo.getHardware().getMemory();
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//总内存
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long totalByte = memory.getTotal();
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//剩余
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long acaliableByte = memory.getAvailable();
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return (totalByte-acaliableByte)*1.0/totalByte;
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}
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/**
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* 获取网络上传和下载
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* @return
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*/
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public static Map<String,Double> getNetworkInterfaces() {
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SystemInfo si = new SystemInfo();
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HardwareAbstractionLayer hal = si.getHardware();
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List<NetworkIF> beforeRecvNetworkIFs = hal.getNetworkIFs();
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NetworkIF beforeBet= beforeRecvNetworkIFs.get(beforeRecvNetworkIFs.size() - 1);
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long beforeRecv = beforeBet.getBytesRecv();
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long beforeSend = beforeBet.getBytesSent();
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try {
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Thread.sleep(1000);
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} catch (InterruptedException e) {
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throw new RuntimeException(e);
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}
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List<NetworkIF> afterNetworkIFs = hal.getNetworkIFs();
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NetworkIF afterNet = afterNetworkIFs.get(afterNetworkIFs.size() - 1);
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HashMap<String, Double> map = new HashMap<>();
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// 速度单位: Mbps
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map.put("in",formatUnits(afterNet.getBytesRecv()-beforeRecv, 1048576L));
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map.put("out",formatUnits(afterNet.getBytesSent()-beforeSend, 1048576L));
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return map;
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}
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/**
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* 获取带宽总值
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* @return
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*/
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public static long getNetworkTotal() {
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SystemInfo si = new SystemInfo();
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HardwareAbstractionLayer hal = si.getHardware();
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List<NetworkIF> recvNetworkIFs = hal.getNetworkIFs();
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NetworkIF networkIF= recvNetworkIFs.get(recvNetworkIFs.size() - 1);
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return networkIF.getSpeed()/1048576L/8L;
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}
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public static double formatUnits(long value, long prefix) {
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return (double)value / (double)prefix;
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}
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/**
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* 获取进程数
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* @return
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*/
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public static int getProcessesCount(){
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SystemInfo si = new SystemInfo();
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OperatingSystem os = si.getOperatingSystem();
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int processCount = os.getProcessCount();
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return processCount;
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}
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public static List<Map<String, Object>> getDiskInfo() {
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List<Map<String, Object>> result = new ArrayList<>();
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String osName = System.getProperty("os.name");
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List<String> pathArray = new ArrayList<>();
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if (osName.startsWith("Mac OS")) {
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// 苹果
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pathArray.add("/");
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} else if (osName.startsWith("Windows")) {
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// windows
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pathArray.add("C:");
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} else {
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pathArray.add("/");
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pathArray.add("/home");
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}
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for (String path : pathArray) {
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Map<String, Object> infoMap = new HashMap<>();
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infoMap.put("path", path);
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File partitionFile = new File(path);
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// 单位： GB
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infoMap.put("use", (partitionFile.getTotalSpace() - partitionFile.getFreeSpace())/1024/1024/1024D);
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infoMap.put("free", partitionFile.getFreeSpace()/1024/1024/1024D);
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result.add(infoMap);
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}
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return result;
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}
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}
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