Retrieving Job Log information prior to job submitting

I am trying to retrieve the job log information from jobs that are submitted to 
a specific jobq, which is on hold.  Depending on parameters that exists on the 
actual call command, which is only visible in the job log, I then want to move 
the jobs to different queues.

I am writing an application that will monitor a specific job queue and move 
jobs depending on parameters on the call command.  One way I can do this is to 
use the DSPJOB or DSPJOBLOG commands to a print file and then copy to a 
physical file and determine the parameters passed.  However, I am wondering if 
anyone knows of a better way to accomplish this.  I looked at the QUSRJOBI API 
but it does not return job log data.

I'd appreciate any help!

Thanks,

Chris Cook