Re: Call Java program from RPGLE

We do. We use Scott's HTTP-API to consume both internal and external web
services... and it is the only portion of the whole shebang that doesn't
break :)

Pillai

Ashish Kulkarni wrote:
> Hi
> I will look into both of them, are they used by anyone
> in production,
>
> any suggestions or where can i get more information or
> review of these products, ( i guess they are open
> source)
>
> Ashish
> --- Michael Ryan <michaelrtr@xxxxxxxxx> wrote:
>
>
>> Scott's HTTPAPI or Aaron' RPG-XML would probably do
>> what you want.
>>
>> On Fri, Mar 7, 2008 at 8:51 AM, Ashish Kulkarni
>> <kulkarni_ash1312@xxxxxxxxx> wrote:
>>
>>> Hi
>>> So it actually works pretty well, calling Java
>>>
>> from
>>
>>> RPG,
>>> My requirement is to call a web service, from
>>>
>> AS400
>>
>>> application,
>>> So i was trying to find, if i can call web
>>>
>> service
>>
>>> directly from RPGLE program, or call a java
>>>
>> program
>>
>>> from RPGLE which in turn would call the web
>>>
>> service.
>>
>>> Any hints or ideas about it
>>>
>>> Ashish
>>> --- Carl <c.groner@xxxxxxxxx> wrote:
>>>
>>> > On Thu, Mar 6, 2008 at 12:54 PM, Thorbjørn Ravn
>>> > Andersen
>>> > <thunderaxiom@xxxxxxxxx> wrote:
>>> > > David Gibbs skrev den 06-03-2008 19:35:
>>> > >
>>> > > > This PDF is a good reference:
>>> > > >
>>> >
>>>
>>>
> http://publibfp.boulder.ibm.com/pubs/html/as400/v5r1/ic2929/books/c0925073.pdf
>
>>> > > >
>>> > > > Just search for the term java.
>>> > > >
>>> > > As a curious byseer, is there any who have
>>>
>> worked
>>
>>> > with this who can say
>>> > > how well it works in terms of speed,
>>> > maintainability (how fragile is
>>> > > this?) and general usefulness?
>>> > >
>>> > > Always willing to learn something new :)
>>> > >
>>> >
>>> > I'm a big fan of calling Java from RPG, and use
>>>
>> it
>>
>>> > regularly with
>>> > great success... both in batch and interactive
>>>
>> jobs.
>>
>>> >
>>> > Some areas where I'm using it in production
>>>
>> include
>>
>>> > sending formatted
>>> > email reports, service and customer
>>>
>> notifications
>>
>>> > via email (using
>>> > javamail and the apache velocity template
>>>
>> engine). I
>>
>>> > also use it in
>>> > mid level networking code as I find dealing
>>>
>> with
>>
>>> > sockets in java to be
>>> > much, much simpler than any c or RPG code I've
>>>
>> come
>>
>>> > across.
>>> >
>>> > It's nice to be able to take advantage of many
>>>
>> of
>>
>>> > Java's strong points
>>> > from within RPG (such as XML parsing/building
>>> > (JDOM), string handling
>>> > and manipulation, regular expressions... I
>>>
>> could go
>>
>>> > on...). I also
>>> > find that prototyping on java standard library
>>> > objects allows me to
>>> > essentially extend the RPG language to fit my
>>>
>> needs;
>>
>>> > no associative
>>> > arrays in RPG, no problem, just prototype and
>>> > instantiate a new Java
>>> > collections object like a HashMap, viola!
>>>
>> Simple
>>
>>> > custom class wrappers
>>> > can be used to translate '400 data types to the
>>>
>> java
>>
>>> > equivalents.
>>> >
>>> > One more point worth noting is that using java
>>> > objects allows you to
>>> > add some level of object oriented
>>>
>> structure/support
>>
>>> > to your RPG code,
>>> > which worked nicely for me in many situations.
>>> >
>>> > Cheers,
>>> > Carl.
>>> > --
>>> > This is the Java Programming on and around the
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>>>
>> options,
>>
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>>>
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>>
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>>>
>> the
>>
>>> > archives
>>> > at http://archive.midrange.com/java400-l.
>>> >
>>> >
>>>
>>>
>>> A$HI$H
>>>
>>>
>>>
>>>
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