Eileen,
Here is a simple Java program to submit a job to z/OS. And I only use the 64
bit version of Java on z/OS.
import java.io.BufferedReader;
import java.io.IOException;
import java.util.StringTokenizer;
import com.ibm.jzos.FileFactory;
import com.ibm.jzos.MvsJobSubmitter;
public class SubmitJob {
/**
* A sample main method that submits JCL read from a file and then
polls its
* status (for up to a minute) until it is complete. The first argument
to main
* can be a Unix file/path name or a "//DATASET.NAME".
* * Example file names:
* <ul>
* <li>/etc/profile</li>
* <li>//DD:INPUT</li>
* <li>//'SYS1.MACLIB(ABEND)'</li>
* <li>//MY.DATASET</li>
* </ul>
*/
public static void main(String[] args) {
}
public static void sub(String[] args) throws IOException {
if (args.length < 1) {
throw new IllegalArgumentException("Missing main
argument: filename");
}
String jobname = null;
MvsJobSubmitter jobSubmitter = new MvsJobSubmitter();
BufferedReader rdr = FileFactory.newBufferedReader(args[0]);
//System.out.println(" args[0] = " + args[0] + " ");
try {
String line;
while ((line = rdr.readLine()) != null) {
if (jobname == null) {
StringTokenizer tok = new
StringTokenizer(line);
String jobToken = tok.nextToken();
if (jobToken.startsWith("//")) {
jobname = jobToken.substring(2);
}
}
jobSubmitter.write(line);
}
} finally {
if (rdr != null) {
rdr.close();
}
}
// Submits the job to the internal reader
jobSubmitter.close();
}
}
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of Barkow, Eileen
Sent: Friday, January 11, 2019 12:18 PM
To: [email protected]
Subject: Re: Do I need to copy a mainframe flat file to OMVS, before I access
the data from a JAVA program? - JZOS question
I was referring specifically to the supplied classes given with JZOS - like
ZipDataSets, those to process MVs files, MVS CONSOLE interaction, etc.
I could not run them with 64 bit java JVMs and could not find any classes
compiled with 64 bit java.
And even if the Java source code for the JZOS classes is supplied, they all
invoke C/C++ routines for which no source code is supplied, so You could not
reassemble them yourself to work with 64 bit.
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of Edgington, Jerry
Sent: Friday, January 11, 2019 12:12 PM
To: [email protected]
Subject: Re: Do I need to copy a mainframe flat file to OMVS, before I access
the data from a JAVA program? - JZOS question
For all of my Java programs on z/OS, which is limited, but have done a few
different items, I have only used the Java loaded with z/OS install. Also,
there should a src.zip in /usr/lpp/java/J8.0_64 folder, with a lot of sample
Java code. One thing to note, make sure you have these in your configuration
LIBPATH $java_home/bin, $java_home/lib/s390x, $java_home/lib/s390x/j9vm
CLASSPATH load $java_home/lib, $java_home/lib/ext
And here are some helpful Java option setting as well.
# Set JZOS specific options
# Use this variable to specify encoding for DD STDOUT and STDERR
#export JZOS_OUTPUT_ENCODING=Cp1047
# Use this variable to prevent JZOS from handling MVS operator commands
#export JZOS_ENABLE_MVS_COMMANDS=false
# Use this variable to supply additional arguments to main
#export JZOS_MAIN_ARGS=""
# Configure JVM options
IJO="-Xms16m -Xmx128m"
# Uncomment the following to aid in debugging "Class Not Found" problems
#IJO="$IJO -verbose:class"
# Uncomment the following if you want to run with Ascii file encoding..
#IJO="$IJO -Dfile.encoding=ISO8859-1"
export IBM_JAVA_OPTIONS="$IJO "
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of Barkow, Eileen
Sent: Friday, January 11, 2019 11:58 AM
To: [email protected]
Subject: Re: Do I need to copy a mainframe flat file to OMVS, before I access
the data from a JAVA program? - JZOS question
Re JZOS:
The last time I looked at JZOS , about 2 years ago, there were no supplied
classes for 64 bit java, only 31 bit.
JZOS itself had a 64 bit option to run the batch launcher, but no classes
that I could find, like those for the MVS datasets or my
favorite one for ZipDataSets.
And the documentation consisted of a README file from IBM that pointed to a
bogus, non-existent web site.
Before I try JZOS again, is it supplying classes compiled with 64 bit java or
not?
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of Jantje.
Sent: Friday, January 11, 2019 7:05 AM
To: [email protected]
Subject: Re: Do I need to copy a mainframe flat file to OMVS, before I access
the data from a JAVA program?
On Thu, 10 Jan 2019 18:11:47 -0500, Cameron Conacher <[email protected]> wrote:
>Thanks everyone.
>Looks like I have some reading to do :-)
Yes. And while you are at it, do have a look at the excellent jZos stuff
originally from Dovetailed, but now included in the JVM. It has (amongst many
other goodies) a ZFile class.
Cheers,
Jantje.
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