Android Open Source - akrellm A Krellm Top

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License

The source code is released under:

Copyright (c) 2012, Tim Edwards All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: ...

Java Source Code

package com.pythonistas.akrellm;
//w  w w.j  a  v a 2 s.  c  o m
import java.io.RandomAccessFile;
import java.io.IOException;
import java.lang.Float;
import java.text.DateFormat;
import java.util.Date;
import android.util.Log;

public class AKrellmTop {
    private boolean tempFound=true;
    private static final String TAG = "AKrellm:";

    private String currentDateTimeString = DateFormat.getDateTimeInstance().format(new Date());
    
    public String date(){
        currentDateTimeString = DateFormat.getDateTimeInstance().format(new Date());
        return currentDateTimeString;
    }

    public float cpu() {
        try {
            RandomAccessFile reader = new RandomAccessFile("/proc/stat", "r");
            String load = reader.readLine();

            String[] toks = load.split(" ");

            float idle1 = new Float(toks[5]);
            float cpu1 = new Float(toks[2]) + new Float(toks[3]) + new Float(toks[4])
                + new Float(toks[6]) + new Float(toks[7]) + new Float(toks[8]);

            try {
                Thread.sleep(360);
            } catch (Exception e) {}

            reader.seek(0);
            load = reader.readLine();
            reader.close();

            toks = load.split(" ");

            float idle2 = new Float(toks[5]);
            float cpu2 = new Float(toks[2]) + new Float(toks[3]) + new Float(toks[4])
                + new Float(toks[6]) + new Float(toks[7]) + new Float(toks[8]);

            return (float)(cpu2 - cpu1) / ((cpu2 + idle2) - (cpu1 + idle1));

        } catch (IOException ex) {
            ex.printStackTrace();
        }

        return 0;
    } 

    public AKrellmLoad load() {
        try {
            RandomAccessFile reader = new RandomAccessFile("/proc/loadavg", "r");
            String load = reader.readLine();
            reader.close();

            String[] toks = load.split(" ");
        
            AKrellmLoad sysload = new AKrellmLoad(new Float(toks[0]),
                                                  new Float(toks[1]),
                                                  new Float(toks[2]));

            return sysload;

        } catch (IOException ex) {
            ex.printStackTrace();
            AKrellmLoad sysload = new AKrellmLoad(new Float(0),
                                                  new Float(0),
                                                  new Float(0));
            return sysload;
        }
    
    } 

    public float meminfo(boolean active) {
        //need to add option for active_memory
        try {
            RandomAccessFile reader = new RandomAccessFile("/proc/meminfo", "r");
            String mem = reader.readLine();
            String[] toks = mem.split("\\s+");
            float memtotal = new Float(toks[1]);
            
            if (! active){
                mem = reader.readLine();
                toks = mem.split("\\s+");
                float memfree = new Float(toks[1]);
                
                reader.close();
                float mempercent = (memtotal-memfree) / memtotal;
                return mempercent;
            }
            else {
                float memactive=0;
                mem = reader.readLine();
                toks = mem.split("\\s+");
                while ( ! toks[0].equals("Active:") ){
                    mem = reader.readLine();
                    if (mem.length()==0){
                        break;
                    }
                    toks = mem.split("\\s+");
                    
                }
                memactive = new Float(toks[1]);
                reader.close();
                float mempercent = memactive/memtotal;
                return mempercent;
            }

        } catch (IOException ex) {
            ex.printStackTrace();
            return 0;
        }
    
    } 


    public float battery() {
        // /sys/class/power_supply/battery/capacity 
        try {
            RandomAccessFile reader = new RandomAccessFile("/sys/class/power_supply/battery/capacity", "r");
            String bat = reader.readLine();
            //String[] toks = bat.split(" ");
            float battotal = new Float(bat);
            reader.close();
            return battotal;

        } catch (IOException ex) {
            ex.printStackTrace();
            return 0;
        }
    }    
    
    public float temp() {
        // /sys/class/hwmon/hwmon0/device/temp1_input
        if (tempFound) {
            try {
                RandomAccessFile reader = new RandomAccessFile("/sys/class/hwmon/hwmon0/device/temp1_input", "r");
                float temp = new Float(reader.readLine());
                reader.close();
                return temp;

            } catch (IOException ex) {
                tempFound=false;
                ex.printStackTrace();
                return 0;
            }
        }
        else {
            return 0;
        }
    }
}

Java Source Code List

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