Re: Coding the main method in a Java/RPG call

["Mike Silvers" <msilvers@xxxxxxxxxxx>]

Walter,

I would use a class with a method of setParameter(String) to set the
parameters from the RPG program, then use the class to call the main method
of the class you are having a problem with.  In other words:

Prototype ClassA in RPG....

public ClassA {

    private Vector parms = new Vector();

    public void setParameter(String parameter) {
        if (parameter != null) {
            parms.add((Object) parameter);
        }
    }

    public void callFop() {
        int parametersize = parms.size();
        String[] args = new String[int];
        for (int x = 0; x < parametersize; x++) {
            args[x] = (String) parms.elementAt(x);
        }
        Fop fop = new Fop();
        fop.main(args);
    }
}

Using a Vector will give you a variable size array like structure.  Using
Java to Java will resolve the problems of the variable size array for the
main method.

Mike

----- Original Message -----
From: <Walter_Hesius@msp.be>
To: <rpg400-l@midrange.com>
Sent: Monday, October 21, 2002 4:07 AM
Subject: Re: Coding the main method in a Java/RPG call


>
> Hi all,
>
> I'm trying (experimenting) to prototype the apache FOP parser.
> This example works fine, but the number of object you can pass, varies.
> If i set DIM to a higher value, i get an java exception:
>
>
>
>      h DftActGrp(*No) ActGrp(*caller)
>
>      d fop             Pr                  ExtProc(*JAVA:
>      d                                     'org.apache.fop.apps.Fop':
>      d                                     'main')
>      d                                     Static
>      d  args                           O   Class(*java:'java.lang.String')
>      d                                     Const
>      d                                     Dim(32767)
>      d                                     Options(*varSize)
>
>      d newString       Pr              O   ExtProc(*JAVA:
>      d                                     'java.lang.String':
>      d                                     *CONSTRUCTOR)
>      d   Value                      100a   Const Varying
>
>      d Parms           s               O   Class(*java
>      d                                      : 'java.lang.String')
>      d                                     Dim(2)
>
>       /Free
>         Parms(1) = newString('/home/wh/xml/oef/msp_a4_p.fo');
>         Parms(2) = newString('/home/wh/xml/oef/msp_a4_p.pdf');
>         fop(Parms);
>         ReTurn;
>       /End-Free
>
>
> Error:
>
>
> Message . . . . :   Java exception received when calling Java method.
> Cause . . . . . :   RPG procedure PARSERS in program PARSERS/XMLPARSERS
>   received Java exception "java.lang.ClassFormatError:
>   org/apache/fop/apps/CommandLineOptions" when calling method "main" with
>   signature "" in class "org.apache.fop.apps.Fop".
>
>
>
> Also,
>
> Coding the Parms variable as:
> D parms            s      O   like(newString)
> D                             dim(2)
> didn't seem to work for me (it won't compile)
>
>
>
> Groetjes,
>
> Walter
>
> Walter Hesius
> Senior Application developper Iseries (as/400)
> Walter_Hesius@msp.be
>
> MSP n.v.
> Mechelsesteenweg 186
> 2650 Edegem
> Tel : +32 (0)3 454 27 88
> Fax: +32 (0)3 454 27 88
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>
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