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Thanks, I'll keep that in mind.

Thanks,

Mark

Mark D. Walter
Senior Programmer/Analyst
CCX, Inc.
mwalter@xxxxxxxxxx
http://www.ccxinc.com


                                                                           
             "Joe Sam Shirah"                                              
             <jshirah@attgloba                                             
             l.net>                                                     To 
             Sent by:                  "Java Programming on and around the 
             java400-l-bounces         iSeries / AS400"                    
             @midrange.com             <java400-l@xxxxxxxxxxxx>            
                                                                        cc 
                                                                           
             06/08/2005 05:26                                      Subject 
             PM                        Re: Trying to get output from       
                                       System.out.                         
                                                                           
             Please respond to                                             
             Java Programming                                              
             on and around the                                             
              iSeries / AS400                                              
             <java400-l@midran                                             
                  ge.com>                                                  
                                                                           
                                                                           





    Hi Mark,

    Standard Java batch runs redirect stdout and stderr to spooled files.
If you're just trying to check a one time problem, you should see the info
there.


                                                         Joe Sam

Joe Sam Shirah -        http://www.conceptgo.com
conceptGO       -        Consulting/Development/Outsourcing
Java Filter Forum:       http://www.ibm.com/developerworks/java/
Just the JDBC FAQs: http://www.jguru.com/faq/JDBC
Going International?    http://www.jguru.com/faq/I18N
Que Java400?            http://www.jguru.com/faq/Java400


----- Original Message -----
From: <MWalter@xxxxxxxxxxxxxxx>
To: "Java Programming on and around the iSeries / AS400"
<java400-l@xxxxxxxxxxxx>
Sent: Wednesday, June 08, 2005 4:48 PM
Subject: Re: Trying to get output from System.out.


> Sam,
>
> Thanks for the informative response.
>
> I understand that calling Java from RPG can be a performance headache,
but
> in our shop, with 1 RPG programmer, and a requirement for allot of
> spreadsheets at certain times during the month, this is really our only
> option considering there are no Java programmers here. I dabble in it,
but
> that's about it.
>
> The class I wrote, is to replace a sub-procedure, written in RPG, to open
> an existing Excel Workbook. The subprocedure, on my system, did not work.
I
> couldn't get any information out of the system as to why the Exception
was
> occurring. So, I decided to write basically the same code in Java, in
order
> to see why the code was failing. This prompted my query for information
as
> to how to see what comes out of System.out. In all the testing, though,
the
> class works. It does return the workbook. I modified it a bit to write
out
> a small error log if there is an error. This works as well. This program
> will be run once a month. I've tested it and it works fine. Although,
like
> you said, there are performance issues.
>
> I look forward to learning more about Java programming. But, I need to
> serve my employer first.
>
> Thanks again for the help,
>
> Regards,
>
> Mark
>
> Mark D. Walter
> Senior Programmer/Analyst
> CCX, Inc.
> mwalter@xxxxxxxxxx
> http://www.ccxinc.com
>
>
>
>              "Joe Sam Shirah"
>              <jshirah@attgloba
>              l.net>
To
>              Sent by:                  "Java Programming on and around
the
>              java400-l-bounces         iSeries / AS400"
>              @midrange.com             <java400-l@xxxxxxxxxxxx>
>
cc
>
>              06/08/2005 04:33
Subject
>              PM                        Re: Trying to get output from
>                                        System.out.
>
>              Please respond to
>              Java Programming
>              on and around the
>               iSeries / AS400
>              <java400-l@midran
>                   ge.com>
>
>
>
>
>
>
> ----------
>     I contacted Mark off-list because it wasn't clear to me if Colin's
> response resolved things and I didn't want to clutter the list with just
an
> inquiry.  Mark's response is below and I will refer to it later on.
> ----------
>
>
>     I will just briefly state my opinion that the biggest problem is
> calling
> Java apps from RPG.  It seems cool, but there are lots of issues, and
> performance/memory becomes a real headache with multiple users.  We never
> have these problems because we just don't do it.  JNI has its place, but
> normally asynchronous processing is the answer.  We use messaging due to
> several benefits; others do the same with data queues.
>
>     BTW, my conclusions are educated guesses.  We don't do things this
way,
> so it has zero educational value for me, and as a business owner I don't
> get
> to eat unless I bill, so there's no incentive to go through testing.
With
> that said,
>
>     First, standard IFS files are in ASCII.  I think your initial problem
> is
> that EBCDIC is getting loaded into the file.  From what I can tell about
> QIBM_USE_DESCRIPTOR_STDIO, while most of the documentation deals with
PASE
> and C code, I think the RPG programs job log and/or messages are getting
> put
> to the IFS file as stdout and stderr.  I may be wrong, but it fits your
> description.  So, the first thing I would try is ditching that
environment
> variable.  See
>
> File systems
>
> <
>
http://publib.boulder.ibm.com/iseries/v5r2/ic2924/index.htm?info/rzalf/rzalffilesystems.htm

>
> >
>
> for *some* information.
>
>     Next, I wouldn't use SystemDefault.properties.  That could get to be
a
> maintenance headache one way or another.  In addition, I suspect that it
> would cause previous data to be overwritten, although I'm not 100%
certain
> of that - depends on how the default out/err is opened.
>
>     Colin's code ( which includes buffering ) should work fine.  The
> general
> basic form is:
>
>         // set out, err
>        System.setErr(
>           new PrintStream(
>              new FileOutputStream(
>                "/myDir/myLog.log", true ) ) );
>
>        System.setOut(
>           new PrintStream(
>              new FileOutputStream(
>                "/myDir/myLog.log", true ) ) );
>
>     Two things about your code below:  You never set System.out or
> System.err, and, opening and closing files is expensive.  For this
purpose,
> you should only do it once per program.  Otherwise, there's nothing that
> strikes me as obviously wrong, although you don't need
>
>         fs.close();
>
> after
>
>         ps.close();
>
>     Maybe there's no text associated with getMessage() for the error?
Try
> writing another string as well.  HTH,
>
>
>                                                          Joe Sam
>
> Joe Sam Shirah -        http://www.conceptgo.com
> conceptGO       -        Consulting/Development/Outsourcing
> Java Filter Forum:       http://www.ibm.com/developerworks/java/
> Just the JDBC FAQs: http://www.jguru.com/faq/JDBC
> Going International?    http://www.jguru.com/faq/I18N
> Que Java400?            http://www.jguru.com/faq/Java400
>
>
> ----- Original Message -----
> From: <MWalter@xxxxxxxxxxxxxxx>
> To: "Joe Sam Shirah" <jshirah@xxxxxxxxxxxxx>
> Sent: Wednesday, June 08, 2005 2:15 PM
> Subject: Re: Trying to get output from System.out.
>
>
> > It makes sense, but I can't get it to work. Here's what I've done
playing
> > with this:
> >
> > public class WorkbookObject {
> >
> >             public HSSFWorkbook getWorkbookHandle (String pathToFile)
> >       {
> >
> >             try {
> >                   FileInputStream fs = new FileInputStream(pathToFile);
> >                   POIFSFileSystem pfs = new POIFSFileSystem(fs);
> >                   HSSFWorkbook wb = new HSSFWorkbook(pfs);
> >                   fs.close();
> >                   String tempString = "This Worked";
> >                   writeErrorLog(tempString);
> >                   return wb;
> >
> >             }
> >             catch (Exception e){
> >                   writeErrorLog(e.getMessage());
> >                   return null;
> >             }
> >       }
> >
> >       private void writeErrorLog (String error)
> >       {
> >             try {
> >                         String errorFileString =
"/javalog/myErrors.log";
> >                         FileOutputStream fs = new
> > FileOutputStream(errorFileString,true);
> >                         PrintStream ps = new PrintStream(fs);
> >                         ps.println(error);
> >                         ps.close();
> >                         fs.close();
> >                         }
> >                         catch (Exception ioe){
> >
> >                         }
> >       }
> > }
> >
> >
> > I get nothing in myErrors.log
> >
> > Obviously I'm a Java Rookie. Again this is being called from RPG.
> >
> > Thanks,
> >
> > Mark
> >
> > Mark D. Walter
> > Senior Programmer/Analyst
> > CCX, Inc.
> > mwalter@xxxxxxxxxx
> > http://www.ccxinc.com
> >
>
> --
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