Java InetAddress Ping pingWindows(InetAddress address, long timeout)

Description

ping Windows

License

Apache License

Declaration

private static long pingWindows(InetAddress address, long timeout) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.io.*;
import java.net.*;

public class Main {
    private static long pingWindows(InetAddress address, long timeout) {
        boolean reached = false;
        long start = System.currentTimeMillis();
        long end = (start - 1);

        try {/*  ww w . j  a v a 2 s  . co m*/
            String line;
            ProcessBuilder processBuilder = new ProcessBuilder(
                    new String[] { "ping", address.getHostAddress(), "-w", String.valueOf(timeout), "-n", "1" });
            Process process = processBuilder.start();

            int processing = 0;
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            while ((line = bufferedReader.readLine()) != null) {
                processing++;
                if (processing == 2) {
                    start = System.currentTimeMillis();
                }

                else if (processing == 3) {
                    if (line.contains(address.getHostAddress())) {
                        end = System.currentTimeMillis();
                    }
                }
            }

            if (calculatePingDelay(start, end) > timeout) {
                return calculatePingDelay(1, 0);
            }

            bufferedReader.close();
        } catch (IOException ex) {
            if (reached) {
                return calculatePingDelay(1, 0);
            }
        }

        return calculatePingDelay(start, end);
    }

    private static long calculatePingDelay(long start, long end) {
        return (end - start);
    }
}

Related

1. ping(InetAddress addr, NetworkInterface ni)
2. ping(InetAddress host)
3. ping(InetAddress target)
4. pingFromLocalAddress(InetAddress localAddr)
5. pingUsingInetAddress()