[rules-users] Exposing the rule engine as a web service to be accessed by the client

[Premkumar Stephen]

Mark has provided the elegant way to do it. However, as a newbie, it can be
done simpler without using this API for stateless rules,.
In this JIRA, https://jira.jboss.org/jira/browse/GUVNOR-354, you will find
complete working examples.

This has a ruby file, which invokes the webservice --> easily doable in
struts
It uses json format - you could pass in the xml format as well.

You don't have to use Guvnor, its just that Guvnor has tooling that creates
the packaging (.pkg files) , snapshots, etc and it is easier.
You can skip Guvnor ( I just have'nt tried it).


Regards,
Prem


On Thu, Jun 18, 2009 at 9:05 AM, tanzu <tanu421 at rediffmail.com> wrote:

>
> My requirement is to expose drools rules as a web service ,which can be
> accessed by any kind of client including .net .I have built a struts based
> web application.When the user submits the struts client should be able to
> submit the data ,to the web service ,which will execute the rule engine
> ,and
> fire all rules ,and send a response back to the client.You said it
> correctly
> the drools execution server can suffice my need.
>
>
> My doubts are
> 1.Is it possible that I dont use guvnor ,and instead use just the drools
> expert with drl files with the execution server.
> 2.The data from the struts client should be converted into xml ,fact object
> and sent to the server to be used in the rules.Am I thinking right.
>
> A sample code showing how the client ,sends xml data to server ,and the
> response sent back to the client ,will be very helpful to me.
>
> Please help.I have a deadline.:-(
>
> tanzu
>
>
>
> pkpkpkpk wrote:
> >
> > Using the Drools execution server, the rules engine can be exposed as a
> > web
> > service.
> >
> > In
> >
> http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-guvnor/html_single/index.html
> ,
> > check out section 1.4.7.2
> >
> > The web service can be invoked using JSON or XML, so, it is possible to
> > invoke it from any client.
> >
> > Regards,
> > Prem
> >
> >
> > On Sun, Jun 14, 2009 at 6:45 AM, tanzu <tanu421 at rediffmail.com> wrote:
> >
> >>
> >> Can the drools rule engine ,be exposed as a web service or do we need to
> >> write a web service and make an explicit call to rule engine ,using the
> >> working memory.
> >> Is it possible for a .net application to invoke drools rule engine.
> >>
> >>
> >> Please help as I am a newbie
> >>
> >>
> >> Thanks
> >> tanzu
> >> --
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> >>
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