Cameron, wou can then use the ZFile class (see https://www.ibm.com/support/knowledgecenter/en/SSYKE2_7.0.0/com.ibm.java.zsecurity.api.70.doc/com.ibm.jzos/com/ibm/jzos/ZFile.html) and open the DD with "//DD:MYFILE"...
Bye, Michael Mit freundlichen Grüßen Michael Knigge Software Engineer SET GmbH Lister Straße 15 30163 Hannover phone: +49 511 39780-23 fax: +49 511 39780-65 www.set.de [email protected] Handelsregister: Amtsgericht Hannover HRB 52778 Geschäftsführer: Tobias Baum, Arthur Brack, Hendrik Leder -----Ursprüngliche Nachricht----- Von: IBM Mainframe Discussion List [mailto:[email protected]] Im Auftrag von Cameron Conacher Gesendet: Donnerstag, 10. Januar 2019 23:50 An: [email protected] Betreff: Re: Do I need to copy a mainframe flat file to OMVS, before I access the data from a JAVA program? Thank you Jerry. Do I simply add a normal DD statement identifying my file? //MYFILE DD DSN=HLQ.MYFILE,DISP=OLD On Thu, Jan 10, 2019 at 4:42 PM Matt Hogstrom <[email protected]> wrote: > I haven’t verified this but I think you can reference the file in Java > using this convention for the file name from USS and not have to run in an > STC. I’ll try this later tonight but thought I’d offer it unverified if > you have time. Concur with Jerry on encoding. > > "//‘hlq.my.mvs.filename'" > > If you’re interested in z/OS specific capabilities via Java on the > platform look here: > > > https://www.ibm.com/support/knowledgecenter/en/SSYKE2_7.1.0/com.ibm.java.zsecurity.api.71.doc/com.ibm.jzos/index.html > > Matt Hogstrom > [email protected] > PGP Key: 0x90ECB270 > > "Aut Inveniam Viam Aut Faciam" translated - > "I shall either find a way or make one." > > The phrase has been attributed to Hannibal < > http://en.wikipedia.org/wiki/Hannibal>; when his generals told him it was > impossible to cross the Alps by elephant < > http://en.wikipedia.org/wiki/Second_Punic_War>, > > > On Jan 10, 2019, at 4:35 PM, Edgington, Jerry < > [email protected]> wrote: > > > > > > No you don't need to copy the file to USS, if you are running a Java > batch job. JCL something like this, which executes the JVM procedure, in > this case Java 1.8 64bit. The STDENV DD will need the environment > variables, like LIBPATH, CLASSPATH, Java Options,etc. > > > > //JAVA EXEC PROC=JVMPRC86, > > // REGSIZE='1024M', > > // JAVACLS='-jar "directory path"/"name of Java program > compiled".jar' > > //* > > //MAINARGS DD DUMMY > > //STDENV DD * > > export PATH=/bin:"${JAVA_HOME}"/bin > > LIBPATH=/lib:/usr/lib:"${JAVA_HOME}"/bin > > LIBPATH="$LIBPATH":"${JAVA_HOME}"/lib/s390x > > LIBPATH="$LIBPATH":"${JAVA_HOME}"/lib/s390x/j9vm > > export LIBPATH="$LIBPATH": > > CLASSPATH=$CLASSPATH:${JAVA_HOME}"/lib:"${JAVA_HOME}"/lib/ext > > export CLASSPATH="$CLASSPATH": > > # Configure JVM options > > IJO="-Xms16m -Xmx128m" > > > > As far as encoding, you will need to in account for that in your Java > program during the read. > > > > Hope that helps. Also, the OMVS segment is a RACF term for the security > definitions when you access USS either via 3270 or something like SSH. > > > > Jerry > > > > -----Original Message----- > > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of Cameron Conacher > > Sent: Thursday, January 10, 2019 4:11 PM > > To: [email protected] > > Subject: Do I need to copy a mainframe flat file to OMVS, before I > access the data from a JAVA program? > > > > Hello Listers, > > If I have created a flat file in some mainframe batch JOB, and I want to > pass it through a JAVA Utility, do I need to copy the file first to my OMVS > segment, and the run my JAVA process? > > Or can I directly access the EBCDIC encoded flat file by my JAVA process? > > > > Just starting down this path. > > Not really sure where I am going with this yet, or what I will do when I > get there. > > > > Thank > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
