get Cpu Info Architecture - Android Hardware

Android examples for Hardware:CPU Information

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Description

get Cpu Info Architecture

Demo Code


//package com.java2s;

import java.io.BufferedReader;
import java.io.File;

import java.io.FileReader;
import java.io.IOException;

import java.util.HashMap;

public class Main {
    private static boolean sHasInitCpuInfo = false;
    private static String sCpuInfoArch = "";
    private static String sCpuInfoVfp = "";
    private static String sCpuArchit = "";

    public static String getCpuInfoArchit() {
        initCpuInfo();//from  w  w w . ja  va2s  .  c o m
        return sCpuArchit;
    }

    /**
     * 
        Processor       : ARMv7 Processor rev 0 (v7l)
        processor       : 0
        BogoMIPS        : 996.14
                    
        processor       : 1
        BogoMIPS        : 996.14
                    
        Features        : swp half thumb fastmult vfp edsp vfpv3 vfpv3d16
        CPU implementer : 0x41
        CPU architecture: 7
        CPU variant     : 0x1
        CPU part        : 0xc09
        CPU revision    : 0
                    
        Hardware        : star
        Revision        : 0000
        Serial          : 0000000000000000
     */
    private static void initCpuInfo() {
        if (sHasInitCpuInfo) {
            return;
        }
        BufferedReader bis = null;
        try {
            bis = new BufferedReader(new FileReader(new File(
                    "/proc/cpuinfo")));
            HashMap<String, String> cpuInfoMap = new HashMap<String, String>();
            String line;
            while ((line = bis.readLine()) != null) {
                line = line.trim();
                if (line.length() > 0) {
                    String[] pairs = line.split(":");
                    if (pairs.length > 1) {
                        cpuInfoMap.put(pairs[0].trim(), pairs[1].trim());
                    }
                }
            }

            String processor = cpuInfoMap.get("Processor");
            if (processor != null) {
                int index1 = processor.indexOf("(");
                int index2 = processor.lastIndexOf(")");
                int len = index2 - index1;
                if (index1 > 0 && index2 > 0 && len > 0) {
                    sCpuInfoArch = processor.substring(index1 + 1, index2);
                } else {
                    sCpuInfoArch = "v" + cpuInfoMap.get("CPU architecture");
                }
            }
            sCpuInfoVfp = cpuInfoMap.get("Features");
            sCpuArchit = cpuInfoMap.get("CPU part");
            sHasInitCpuInfo = true;
        } catch (Exception e) {

        } finally {
            try {
                if (bis != null)
                    bis.close();
            } catch (IOException e) {

            }
        }
    }
}

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