× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. RPG400-L
  3. January 2006

RE: Error Calling Java Methods from RPGLE

This thread: http://archive.midrange.com/rpg400-l/200202/msg00206.html
may be able to help you out.

Also, you can do encryption and decryption in RPG using the CIPHER MI
which is much faster than Java's methods. You need to have the
Cryptographic Access Providers installed to do it. Scott Klement has an
example of doing RC4 on his web site and there's an example of 128 bit
AES in the archives (take a look at the entire thread since there's a
bug in the posted code). The posted AES example doesn't use a salt value
which is bad but that's easy to remedy and it also only handles one
block (16 bytes) or clear text but that's also easy to remedy.

Matt

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of venkatreddy puram
Sent: Wednesday, January 18, 2006 11:11 PM
To: rpg400-l@xxxxxxxxxxxx
Subject: Re: Error Calling Java Methods from RPGLE 

Hi Matt/David,
        Thank You for your responses...

David,
         I was not able to direct the error output to stdout and stderr
even 
after creating the source PF and overriding to it.

Matt,
        In order to isolate that the error is not occuring in the custom

java app, I codded the following simple lines and ran it as I had a
strong 
belief that the error was occuring the Java Native interface...

         According to the dump the program fails when the "number"
reaches 
349521


Here is the code

============================================================

     H Debug Option(*NoDebugIO) Thread(*Serialize) DFTACTGRP(*no)

     D  SrvProvider    S             20    Inz('SampleProvider')
     D  User_Name      S             20    Inz('username')
     D  Pass_Word      S             20    Inz('password')

     D  AlgID          S             32    Inz('88')
     D  KeyID          S             64    Inz('KKK-SPS890')
     D EncryptedStr    S             32
     D  Number         S              7  0

      // Definition of Java constructor for the String class

     D StringC         PR              O   ExtProc(*JAVA:
     D                                     'java.lang.String':
     D                                     *CONSTRUCTOR)
     D                            65535A   Const Varying


     D Provider        S               O   CLASS(*JAVA :
'java.lang.String' 
)
     D User            S               O   CLASS(*JAVA :
'java.lang.String' 
)
     D Password        S               O   CLASS(*JAVA :
'java.lang.String' 
)
     D J_AlgID         S               O   CLASS(*JAVA :
'java.lang.String' 
)
     D J_KeyID         S               O   CLASS(*JAVA :
'java.lang.String' 
)
     D J_EncryptedStr  S               O   CLASS(*JAVA :
'java.lang.String' 
)


      //==========================================================
      // Mainline
      //==========================================================

      /Free

        //Start of MainLine



        Monitor;

        num = 0;

        EncryptedStr = 'yxJd9n2nYeA4Sh3zya0UrGS0G+W09pNVC4yW1BsGI6s=';

        Dou number = 350000 ;

                Provider = StringC(%Trim(SrvProvider));
                User     = StringC(%Trim(User_Name));
                PassWord = StringC(%Trim(Pass_Word));
                J_AlgID        = StringC(%Trim(AlgID));
                J_KeyID        = StringC(%Trim(KeyID));
                J_EncryptedStr = StringC(%Trim(EncryptedStr));

                number += 1;


        EndDo;
        On-Error;
        Dump;
        EndMon;
        Return;

===========================================================
VENKAT REDDY



    3. Re: Error Calling Java Methods from RPGLE (venkatreddy puram)
    4. Re: Error Calling Java Methods from RPGLE (David Gibbs)
    5. RE: Error Calling Java Methods from RPGLE (Matt.Haas@xxxxxxxxxxx)
------------------------------

message: 3
date: Wed, 18 Jan 2006 10:45:56 -0800
from: "venkatreddy puram" <purumvenkat@xxxxxxxxxxx>
subject: Re: Error Calling Java Methods from RPGLE

David,
          Thank you for the response... I tried directing the output to
stderr.txt and strout.txt. The files did get created but at the end of
job
failure there was nothing written to it. Is there enythig else that i
should
have set up...

Here are the environment variables that I have set before running the
program...

RMVENVVAR  ENVVAR(*all) LEVEL(*JOB)

CHGCURDIR  DIR('/')

ADDENVVAR  ENVVAR(PATH) +
              VALUE('/qibm/ProdData/java400/jdk15/bin:/us+
              r/bin:')

ADDENVVAR  ENVVAR(QIBM_RPG_JAVA_PROPERTIES) +
              VALUE('-Djava.version=1.5!-Dos400.stdout=fi+
              le:/home/VReddy/stdout.txt!-Dos400.stderr=f+
              ile:/home/VReddy/stderr.txt!')

ADDENVVAR  ENVVAR(CLASSPATH) +
              VALUE('qibm/UserData:/qibm/proddata/java400+
              /jdk15/bin:/QIBM/ProdData/Java400/jdk15/lib+
              /security:/qibm/UserData/java400/systest:/q+
              ibm/UserData/java400/uat:/qibm/UserData/jav+
              a400/prod:/qibm/UserData/java400/prod/ext/l+
              og4j.jar:/qibm/UserData/java400/prod/ext/xa+
              lan.jar:/qibm/UserData/java400/prod/ext/xer+
              cesImpl.jar:/qibm/UserData/java400/prod/ext+
              /NetComponents.jar:/qibm/UserData/java400/p+
              rod/ext/optional.jar:/qibm/UserData/java400+
              /prod/ext/xml-apis.jar:/QIBM/ProdData/Java4+
              00/jdk15/lib/ext')

Thank You

Venkat Reddy




------------------------------

message: 4
date: Wed, 18 Jan 2006 12:48:49 -0600
from: David Gibbs <david@xxxxxxxxxxxx>
subject: Re: Error Calling Java Methods from RPGLE

venkatreddy puram wrote:
 > ADDENVVAR  ENVVAR(QIBM_RPG_JAVA_PROPERTIES) +
 >              VALUE('-Djava.version=1.5!-Dos400.stdout=fi+
 >              le:/home/VReddy/stdout.txt!-Dos400.stderr=f+
 >              ile:/home/VReddy/stderr.txt!')

I generally use OVRDBF to redirect stdout & stderr to a source pf.

CRTSRCPF FILE(QTEMP/STDOUT) MBR(STDOUT)
CRTSRCPF FILE(QTEMP/STDERR) MBR(STDERR)
OVRDBF FILE(STDOUT) TOFILE(QTEMP/STDOUT) OVRSCOPE(*JOB)
OVRDBF FILE(STDERR) TOFILE(QTEMP/STDERR) OVRSCOPE(*JOB)

david



------------------------------

message: 5
date: Wed, 18 Jan 2006 13:56:34 -0500
from: <Matt.Haas@xxxxxxxxxxx>
subject: RE: Error Calling Java Methods from RPGLE

Ventak,

You may be running into a poorly written Java app that doesn't print out
a stack trace when it gets an error. If that's the case, you'll have to
get the Java app changed so this happens.

Matt

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of venkatreddy puram
Sent: Wednesday, January 18, 2006 1:46 PM
To: rpg400-l@xxxxxxxxxxxx
Subject: Re: Error Calling Java Methods from RPGLE

David,
          Thank you for the response... I tried directing the output to
stderr.txt and strout.txt. The files did get created but at the end of
job
failure there was nothing written to it. Is there enythig else that i
should
have set up...

Here are the environment variables that I have set before running the
program...

RMVENVVAR  ENVVAR(*all) LEVEL(*JOB)

CHGCURDIR  DIR('/')

ADDENVVAR  ENVVAR(PATH) +
              VALUE('/qibm/ProdData/java400/jdk15/bin:/us+
              r/bin:')

ADDENVVAR  ENVVAR(QIBM_RPG_JAVA_PROPERTIES) +
              VALUE('-Djava.version=1.5!-Dos400.stdout=fi+
              le:/home/VReddy/stdout.txt!-Dos400.stderr=f+
              ile:/home/VReddy/stderr.txt!')

ADDENVVAR  ENVVAR(CLASSPATH) +
              VALUE('qibm/UserData:/qibm/proddata/java400+
              /jdk15/bin:/QIBM/ProdData/Java400/jdk15/lib+
              /security:/qibm/UserData/java400/systest:/q+
              ibm/UserData/java400/uat:/qibm/UserData/jav+
              a400/prod:/qibm/UserData/java400/prod/ext/l+
              og4j.jar:/qibm/UserData/java400/prod/ext/xa+
              lan.jar:/qibm/UserData/java400/prod/ext/xer+
              cesImpl.jar:/qibm/UserData/java400/prod/ext+
              /NetComponents.jar:/qibm/UserData/java400/p+
              rod/ext/optional.jar:/qibm/UserData/java400+
              /prod/ext/xml-apis.jar:/QIBM/ProdData/Java4+
              00/jdk15/lib/ext')

Thank You

Venkat Reddy


--
This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing
list
To post a message email: RPG400-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/rpg400-l.

As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.