Re: How to get the status of the runtime process in java..?

From:

Thomas Fritsch <i.dont.like.spam@invalid.com>

Newsgroups:

comp.lang.java.programmer

Date:

Wed, 09 Aug 2006 11:29:09 GMT

Message-ID:

<newscache$kkaq3j$hch$1@news.ops.de>

janak schrieb:

The model source code is
try
{
Runtime r = Runtime.getRuntime();
Process p = r.exec("System command");
int e = p.waitFor();
System.out.println("The process value :" + e);
}

catch
{
...}

I got succeed in executing the file.here waitFor() method will return a
value 0 (if the process executed successfully) or 1 (if the process
execution fails)But the problem i faced is i cant able to get the
status of that execution whether it is running or get terminates. The
waitFor() method work successfully on the terminal(or command window in
windows)when i terminate the process by using ^C but when i tried this
in JSP i cant able to terminate the process. I tried to use the
exitValue() method but i cant. How to monitor the runtime process on
remote machine. I am using Linux and Netbeans IDE.

Can anyone give solution to this.....

According to the API doc at
<http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Process.html#exitValue()>
you could do

   public static boolean isRunning(Process process) {
     try {
       process.exitValue();
       return false;
     } catch(IllegalThreadStateException e) {
       return true;
     }
   }

--
Thomas