Re: Java program write to /qsys.lib file system?

I wrote a small testcase and found you can write to a member as long as the
member exists before running the Java program.  The source for my test is:
   FileOutputStream f = new
   FileOutputStream("/QSYS.LIB/DAW.LIB/DAW.FILE/A.MBR");
   PrintWriter pw = new PrintWriter(f);
   pw.write("line 1");
   pw.write("line 2");
   pw.flush();
   pw.close();
   f.close();

If I first create the member data was written to the file.  If I do not create
the member, I get a FileNotFound exception.  I will not speak for the value of
the data, however.  Since java.io classes write the data it ends up being
unicode.  If an AS/400 app is going to digest the data, I hope it can handle
unicode.

As mentioned in another append, the Toolbox has classes to write to the IFS and
will convert the data.  I re-wrote my test case to:
   AS400 system = new AS400();
   IFSTextFileOutputStream f = new
      IFSTextFileOutputStream(system, "/QSYS.LIB/DAW.LIB/DAW.FILE/A.MBR", 37);
   f.write("line 1 \n");
   f.write("line 2  \n");
   f.flush();
   f.close();

The data written to the file is EBCDIC so I am able to use AS/400 tools (like
SEU) to edit the same file.  Also, the Toolbox class creates the file if it
doesn't exist so the file does not have to exist before the Java program runs.
If you don't have access to the source then you can't change the app to use
Toolbox classes but it is an option if you have access to the source.

David Wall
AS/400 Toolbox for Java




Folks:

Does anyone know if it's possible for a java program, running on the '400,
to write to a source pf?

The output file I want to write to is
/QSYS.LIB/DEVDMGWRK.LIB/JAVAOUT.FILE/JAVAOUT.MBR

The java program I'm running (and I admit, I don't know much about it
currently) complains that it can't find the file.

Thanks!

david

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