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Drools rules loop knowledge base / published by https://github.com/dacr/code-examples-manager #6b3ee4ec-6f57-4587-b0ea-1be4118b5a2f/1dfbc7342c5bf96835a47ffc7b68513c53390c20
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// summary : Drools rules loop knowledge base | |
// keywords : scala, drools, mvel, scalatest, ai, knowledgebase, @testable | |
// publish : gist | |
// authors : David Crosson | |
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2) | |
// id : 6b3ee4ec-6f57-4587-b0ea-1be4118b5a2f | |
// created-on : 2019-10-04T09:15:21+02:00 | |
// managed-by : https://github.com/dacr/code-examples-manager | |
// run-with : scala-cli $file | |
// --------------------- | |
//> using scala "3.4.2" | |
//> using dep "fr.janalyse::drools-scripting:1.1.0" | |
//> using dep "org.scalatest::scalatest:3.2.16" | |
// --------------------- | |
import fr.janalyse.droolscripting._, org.scalatest._, flatspec._, matchers._, OptionValues._ | |
object KbTest extends AnyFlatSpec with should.Matchers { | |
val drl = | |
"""package test | |
| | |
|declare That | |
| count:int | |
|end | |
| | |
|rule "init" when then insert(new That(0)); end | |
| | |
|rule "count" | |
|when | |
| //$that:That($count:count) | |
| $that:That($count:count , count < 100) | |
|then | |
| modify($that) { | |
| setCount($count+1) | |
| } | |
|end | |
|""".stripMargin | |
"test KB" should "work" in { | |
val engine = DroolsEngine(drl) | |
engine.fireAllRules() | |
engine.getModelFirstInstanceAttribute("test.That", "count").value.asInstanceOf[Int] shouldBe 100 | |
} | |
} | |
KbTest.execute() |
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