Define common query for multiple drl files

[Amisha Gupta]

Hi Kogito group,

I want to define a single query that could execute on multiple drl files with different rules.

Example :

Drl1.drl

package org.xyz.rules;

unit RequestUnit

## imports

rule "DT1.Rule1" when

        $s:/requests[approved == false]

        $xcountry: XCountry(code == "SD") from $request.xcountries

        $ycountry: YCountry(code == "SD") from $request.ycountries

    then

        modify( $s){ setApproved(true) };

end

......

.......

Drl2.drl

package org.xyz.rules;

unit RequestUnit

## imports

rule "DT2.Rule1" when

        $s:/requests[approved == false]

        $xcountry: XCountry(code == "SD") from $request.xcountries

        $currency: Currency(code == "USD") from $request.currencies

    then

        modify( $s){ setApproved(true) };

end

......

.......

With these drl files, I want to generate a single REST endpoint that fire the rules on both the drl files and return approved true or false.

Could someone please help me with this?

Best Regards,

Amisha

[Matteo Mortari]

Hi Amisha,

I've built this demo: https://github.com/tarilabs/demo20230623

That generate a single REST endpoint that fire rules on two DRL files:

• here https://github.com/tarilabs/demo20230623/blob/main/src/main/resources/org/drools/demo/rules1.drl
• and here https://github.com/tarilabs/demo20230623/blob/main/src/main/resources/org/drools/demo/rules2.drl

and return the approved true or false: https://github.com/tarilabs/demo20230623/blob/main/src/main/resources/org/drools/demo/queries.drl#L6

The test demonstrate is the single endpoint (since it pertains to the Query bound to the RuleUnit): https://github.com/tarilabs/demo20230623/blob/main/src/test/java/org/drools/demo/RequestsTest.java#L37

Could someone please help me with this?

Best Regards,

Amisha

Hope this helps!

MM

--

Matteo Mortari

youtube.com/@MatteoMortari

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