How to get job id in my java code?

Question

I know that using showjobs command can get the list of jobs and their id.But I want give to control the users to access the reports.This means the different users can only stop the report which I give them permission.How can I solve this problem?If has any suggestion,please answer me of mail to ma.thank a lot.

Answer 1

What would you do with the pid? the actual pid is OS dependent in form and how to react. You could do what I've done in the past and that is to do the following.
I have a java task that spawns new instances of 'things'. As each thing is 'exec'ed, I place its Process object into a 'running queue' and then periodically check its exitValue() to determine if it is still running or not.
if you don't care about OS dependency and happen to be on a unix system, then when you exec the process, add a unique string as a command line argument that you know won't be used. something like this:
mypgm -a=blah -b=blah2 myUniqueString
Then in your code that retrieves the process id, simply do something like this:
ps -efwww | grep myUniqueString | awk ....
awk it into something usable or perhaps just grab the raw and parse it in java to extract the process id.
I think the danger would reside in the idea that if you were to grab the processid and then do a 'kill -9 xx' that java might not clean up correctly. What would happen if a db transaction was taking place right as the -9 signal was received? The results of course would be OS dependent.
Why do you need the process id? thats the real question....