Using standard out for Process.java

Question

hello
I hope I make myself clear with my problem. I want to execute a command using Runtime.exe() on windows. The first step works. I can execute this command:
net stop server
however sometimes the user will be prompted to input 'Y' or 'N' before completion. That means I have to provide this via standard in. This part I cannot get to work. I will attach my code and perhaps someone can enlighten me where I am flawed. Thank you in advance for any help.
     public void closeServer() {
        try
            String[] cmd = new String[3];
            cmd[0] = "cmd.exe" ;
            cmd[1] = "/C" ;
            cmd[2] = "net stop server";
            Runtime rt = Runtime.getRuntime();
            System.out.println("Exec-ing " + cmd[0] + " " + cmd[1] + " " + cmd[2]);
            Process proc = rt.exec(cmd);
            // any error message?
            StreamGobbler errorGobbler = new StreamGobbler(proc.getErrorStream(), "ERROR");           
            // any output?
            StreamGobbler outputGobbler = new StreamGobbler(proc.getInputStream(), "OUTPUT");
            outputGobbler.setProc(proc);
            // kick them off
            errorGobbler.start();
            outputGobbler.start();
            // any error???
            int exitVal = proc.waitFor();
            System.out.println("ExitValue: " + exitVal);       
        } catch (Throwable t)
            t.printStackTrace();
class StreamGobbler extends Thread
     Process proc;
    InputStream is;
    String type;
    StreamGobbler(InputStream is, String type)
        this.is = is;
        this.type = type;
        proc = null;
    public void setProc(Process proc) {
         this.proc = proc;
    public void run()
        try
            String line=null;
            while ( (line = br.readLine()) != null){
                System.out.println(type + ">" + line);
                 if(type.equals("OUTPUT") && (proc != null)) {
                      if(line != null && line.indexOf("Do you want to continue this operation?") > -1) {
                           OutputStream os = proc.getOutputStream();
                           PrintWriter pw = new PrintWriter(os);
                           pw.println("Y\r\n");
                           pw.flush();
                           System.out.println("wrote Y");
       } catch (IOException ioe)
           ioe.printStackTrace(); 
}As you can see, I assume you get answer back at the appropriate time via the outputstream of the process

Answer 1

Thanks everyone for your quick response,
I have the old ODSs built in 3.5 version which used infosource, update rules and transfer rules.
And they are running for the past 6 months now. And they don't have DTP.
My new ZDSO has got transformation and DTP.
If I use the same Infopack for my both the data target, how will I do a full load for my new DSO. will the existing delta process not get disturbed?
Please advice
Thanks