Re: Use of Runtime.getRuntime().exec

If you are running v5r1, have you tried the on-thread option of Toolbox
program / command call?  If you mark your program / command call objects as
thread safe then the Toolbox runtime directly calls the program / command
instead of running the request via the command/program call server.  For
example, suppose you code up ...

      AS400 system = new AS400();
      CommandCall cc = new CommandCall(system);
      cc.setThreadSafe(true);
      cc.run("ADDLIBLE xxxx");

The command is run in the Java job on the thread that calls cc.run().

We try to keep the overhead involved with the AS400 object small, so even
on-thread may not give you what you are looking for.  It may be worth a
try, though.  Remember, you need v5r1 or later, and use Toolbox jar
/qibm/proddata/os400/jt400/lib/jt400Native.jar.

David Wall
Toolbox for Java
iSeries ODBC Driver for Linux




                      "Mike Silvers"
                      <msilvers@HBS-INC        To:       
<java400-l@midrange.com>
                      .COM>                    cc:
                      Sent by:                 Subject:  Use of 
Runtime.getRuntime().exec
                      java400-l-admin@m
                      idrange.com


                      05/23/2002 03:09
                      PM
                      Please respond to
                      java400-l





Does anyone use Runtime.getRuntime().exec to call programs on the 400?

I have an application that calls a COBOL program to perform some
complicated
business logic spanning numerous files.  I need to call the program with
some parameters.  The data is returned by a socket.  Before this program
calls the COBOL program, I start a new thread that is a socket server to
listen for the response from the COBOL program.

Right now I am using ProgramCall class to call the program.  I use
CommandCall to set the library list.  Both of these need an AS400 object.
I
would like to eliminate the overhead of the AS400 object communication and
do a direct call to the program.

I was thinking of using Runtime.getRuntime().exec to execute the commands
and to call the program.  I was not sure if Runtime.getRuntime().exec can
call a program with parameters.

Any ideas?

Thanks

Mike

================================
Mike Silvers
AS/400 Senior Programmer/Analyst
AS/400 IBM Certified RPG IV Developer
AS/400 IBM Certified Solutions Expert
Hainey Business Systems
8 E. Canal St
Dover, PA 17315
Branch Office:  (410) 397-8739
Phone:  (800) 932-3380 ext. 237
Fax:  (717) 292-9474
Web: http://www.hbs-inc.com
________________________________
Providing E-Commerce, EDI, AS/400
Development, Java Development,
and related services nationwide.
================================


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