processus.java

这是一个在linux环境下

package fr.umlv.projet.IG;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.UnsupportedEncodingException;
import java.util.Scanner;


public class Processus {
	private int pid;
	private String name;
	private String state;
	private String ppid;
	private String tgid;
	private String sleepAVG;
	private String tpid;
	private String tracePid;
	private String uid;
	private String gid;
	private String user;
	private String fdsize;
	private String vmSize;
	private String vmLck;
	private String vmRss;
	private String vmData;
	private String vmStk;
	private String vmExe;
	private String vmLib;
	private String vmPTE;
	private String threads;
	private String cmdLine;
	private String meminfo;
	private String cpuinfo;
	
	public static native String getUserName(int pid);
	
	static{
		System.loadLibrary("testjni");
	}
	
	public static String changeFloatSize(float value,int size){
		String s = new String(value+"");
		int index=0;
		for(int i = 0;i<s.length();i++)
			if(s.charAt(i)=='.'){
				index = i;
				break;
			}
		String s1 = s.substring(0,index+size+1);
		return s1;
	}

	public synchronized void enregistreData(Scanner sc){
		String s = sc.next();
		if(s.contains("Name"))
			this.name = sc.next();
		if(s.contains("State"))
			this.state = sc.next();
		if(s.contains("PPid"))
			this.ppid = sc.next();
		if(s.contains("Uid")){
			sc.next();
			this.uid = sc.next();
			int i = Integer.parseInt(this.uid);
			this.user = getUserName(i);
		}
		if(s.contains("Gid"))
			this.gid = sc.next();
		if(s.contains("TracePid"))
			this.tracePid = sc.next();
		if(s.contains("SleepAVG"))
			this.sleepAVG = sc.next();
		if(s.contains("Tgid"))
			this.tgid =sc.next();
		if(s.contains("FDSize"))
			this.fdsize = sc.next();
		if(s.contains("VmSize"))
			this.vmSize = sc.next(); 
		if(s.contains("VmLck"))
			this.vmLck = sc.next();
		if(s.contains("VmStk"))
			this.vmStk = sc.next();
		if(s.contains("VmRSS"))
			this.vmRss = sc.next();
		if(s.contains("VmData"))
			this.vmData = sc.next();
		if(s.contains("VmExe"))
			this.vmExe = sc.next();
		if(s.contains("VmLib"))
			this.vmLib = sc.next();
		if(s.contains("VmPTE"))
			this.vmPTE = sc.next();
		if(s.contains("Threads"))
			this.threads = sc.next();
	}
	
	public void traiterData(){
		float Rss = Float.parseFloat(vmRss);
		float memTotal = Float.parseFloat(Meminfo.getMemTotal());
		float mem = (Rss/memTotal)*100.0f;
		this.meminfo = changeFloatSize(mem,2);
	}
	
	public Processus(int pid) {
		this.pid = pid;
		String path1 = "/proc/"+pid+"/status";
		String path2 = "/proc/"+pid+"/cmdline";
		try {
			Scanner sc1 = new Scanner(new File(path1));
			while(sc1.hasNext()){
				enregistreData(sc1);
			}
			Scanner sc2 = new Scanner(new File(path2));
			while(sc2.hasNext()){
				try {
					this.cmdLine = new String(sc2.next().getBytes("UTF-8"),"US-ASCII");
				} catch (UnsupportedEncodingException e) {
					e.printStackTrace();
				}
			}
			
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		traiterData();
	}
	
	public int getPid(){
		return pid;
	}
	
	public String getName(){
		return name;
	}
	
	public String getState(){
		return state;
	}
	
	public String getPpid(){
		return ppid;
	}
	
	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append(pid);
		sb.append(name);
		sb.append(state);
		sb.append(ppid);
		return sb.toString();
	}

	
	public static void main(String[] args){
		System.out.println(Meminfo.getMemTotal());
		Processus pro = new Processus(4217);
		Processus pro1 = new Processus(1);
//		System.out.println(pro.uid+" "+pro.uid.length());
		System.out.println("hehe"+pro1.getCmdLine().charAt(6)==pro1.getCmdLine().charAt(7)+"haha");
		System.out.println(pro.getCmdLine()+" "+pro.getCmdLine().length());
	}

	public String getFdsize() {
		return fdsize;
	}

	public String getGid() {
		return gid;
	}

	public String getSleepAVG() {
		return sleepAVG;
	}

	public String getTgid() {
		return tgid;
	}

	public String getThreads() {
		return threads;
	}

	public String getTpid() {
		return tpid;
	}

	public String getTracePid() {
		return tracePid;
	}

	public String getUid() {
		return uid;
	}

	public String getUser() {
		return user;
	}

	public String getVmData() {
		return vmData;
	}

	public String getVmExe() {
		return vmExe;
	}

	public String getVmLck() {
		return vmLck;
	}

	public String getVmLib() {
		return vmLib;
	}

	public String getVmPTE() {
		return vmPTE;
	}

	public String getVmRss() {
		return vmRss;
	}

	public String getVmSize() {
		return vmSize;
	}

	public String getVmStk() {
		return vmStk;
	}

	public String getCmdLine() {
		return cmdLine;
	}

	public String getCpuinfo() {
		return cpuinfo;
	}

	public String getMeminfo() {
		return meminfo;
	}
}