Pierre,

   Good to see works like yours being done. 

   Drools has an internal canonical model that we use to round trip rules between the syntaxes we support. The best way of supporting "RIF" in Drools is to simply add a parser that parses RIF and populates the canonical model. From that we have a DRL "dumper" that generates DRL, enabling the RIF->DRL translation. Also, if we create a RIF "dumper", one can then generate RIF rules from the canonical model, enabling DRL->RIF translation. That assumes that there is a 1-to-1 semantic mapping between RIF and DRL (I believe there is, but didn't checked).

   Edson

 

2011/2/9 <pdl@agh.edu.pl>

Mark, Andrew, Guys,

Yes working with DRL may be better for Drools indeed. But the only way I
see this working is by implementing this directly in the code of Drools.
That's not practical for me, hence I "simply" export/import the rules
in/from XML. This way I can focus on the translation.

If someone would give me pointers on an easy way to work with DRL, I'd do
that of course.

I assume you already had discussions on XML (or anything more structured
and widely spread than DRL) as working format so I won't be going there :)

All the best,
Pierre


On 09/02/2011 16:46, Mark Proctor wrote:
> On 09/02/2011 08:40, pdl at agh.edu.pl wrote:
>> Hi all,
>>
>> I've been working on translators between RIF-PRD, DroolsML and JessML.
>> I've put the translators in the form of XSLT stylesheets on the
following
>> web site along with samples of rules written in the above languages. I
>> would greatly appreciate feedback/comments/tips/help on making these
>> translators more reliable and accurate.
>>
>> Web site: yieldrif (dot) appspot (dot) com  (in case emails containing
>> URLs are bounced off)
>>
>> Please note that this is free hosting and has some limitations. Feel
free
>> to add/comment content on this web site or drop me a line. What would
be
>> really helpful is a XML Schema for DroolsML and also the rhs to be in
XML
>> as opposed to drools code.
> Is this converting to Drools DRL? or to our deprecate, unmaintained, out
> of date and very old XML?
Sorry someone just read that sentence back to me, and it probably read
very wrong.

Let me start again. First up great work, it's good to see any
interchange work happening, it's not easy stuff. And I can't wait for us
to figure out how to get this working directly against our more recent
DRL :)

Mark
> Mark
>> I look forward to hearing from you,
>> Pierre
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--
  Edson Tirelli
  JBoss Drools Core Development
  JBoss by Red Hat @ www.jboss.com

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