java - How to find whether vbscript is running or not

Question

import java.io.IOException;

public class runvbs {

    public static void RunVBs(String jobName) throws InterruptedException, IOException {
        // TODO Auto-generated method stub

        try {
            String currentDir = System.getProperty("user.dir");         
            //Execute the vbscript name which is passed in this method.
            //Generally it is runmfjob.vbs is the vbscript to run as a pre-requisite.
            Runtime.getRuntime().exec("wscript " + currentDir + "\\vbscript\\" + jobName + ".vbs");
            boolean statusofjob;            
            //Every 60 seconds monitor the jobs and print the job is completed or not.
            //Do loop executes until the job is completed.
            do {                
                System.out.println("Mainframe Job is running and waiting to complete it");
                Thread.sleep(60000);
            } while (DataGenerator.getstatusofJob() == true);
            System.out.println("Vbscript is completed");
        } catch (InterruptedException e) {
            System.out.println(e);
            System.exit(0);
        }
    }
}

public static boolean getstatusofJob() {
    boolean runflag = false;
    try {
        String line;
        String pidInfo = "";
        Process p = Runtime.getRuntime().exec(System.getenv("windir") + "\\system32\\" + "tasklist.exe");
        BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
        // System.out.println(input);
        while ((line = input.readLine()) != null) {
            pidInfo += line;
        }
        input.close();
        if (pidInfo.contains("wscript.exe")) {
            // System.out.println("Firefox is running");
            runflag = true;
        } else {
            // System.out.println("Firefox is NOT running");
            runflag = false;
        }
    }
    catch (IOException e) {
        e.printStackTrace();
    }
    return runflag;
}

This sometimes returns correct but not all the time. Sometimes my vbscript is completed, but it is still monitoring. Can any one help to get this to work everytime?

标签： java