Loading Drools/KIE Workbench artifacts directly from the repository

Question

We try to switch to Drools 6 with the all new KIE workbench (formerly known as Guvnor) and the new maven-based artifacts.

Now I\'d like to use the the system describ

Answer 1

The code above uses maven and kie-ci. The URLResource you create is not used.

Here's a working sample :

    String url = "http://localhost:8080/kie-drools-wb/maven2/groupId/artifactId/1.0/artifactId-1.0.jar";

    KieServices ks = KieServices.Factory.get();
    KieRepository kr = ks.getRepository();
    UrlResource urlResource = (UrlResource) ks.getResources()
            .newUrlResource(url);
    urlResource.setUsername("admin");
    urlResource.setPassword("password");
    urlResource.setBasicAuthentication("enabled");
    InputStream is = urlResource.getInputStream();
    KieModule kModule = kr.addKieModule(ks.getResources()
            .newInputStreamResource(is));

    KieContainer kContainer = ks.newKieContainer(kModule.getReleaseId());

    kContainer.newStatelessKieSession();

Note that you still need to tweak a bit to allow this to work with the KieScanner.

Answer 2

I finally managed to get this solved. Below is a working example which loads the Drools artifact from the KIE-repository via HTTP and executes the rules:

package kieTest;

import java.util.Scanner;

import org.drools.compiler.kproject.ReleaseIdImpl;
import org.kie.api.KieServices;
import org.kie.api.builder.KieScanner;
import org.kie.api.runtime.KieContainer;
import org.kie.api.runtime.StatelessKieSession;

public class MainKieTest {

    public static void main(String[] args) {

        // works even without -SNAPSHOT versions
        String url = "http://localhost:8080/kie-drools/maven2/de/test/Test/1.2.3/Test-1.2.3.jar";

        // make sure you use "LATEST" here!
        ReleaseIdImpl releaseId = new ReleaseIdImpl("de.test", "Test", "LATEST");

        KieServices ks = KieServices.Factory.get();

        ks.getResources().newUrlResource(url);

        KieContainer kieContainer = ks.newKieContainer(releaseId);

        // check every 5 seconds if there is a new version at the URL
        KieScanner kieScanner = ks.newKieScanner(kieContainer);
        kieScanner.start(5000L);
        // alternatively:
        // kieScanner.scanNow();

        Scanner scanner = new Scanner(System.in);
        while (true) {
            runRule(kieContainer);
            System.out.println("Press enter in order to run the test again....");
            scanner.nextLine();
        }
    }

    private static void runRule(KieContainer kieKontainer) {
        StatelessKieSession kSession = kieKontainer.newStatelessKieSession("testSession");
        kSession.setGlobal("out", System.out);
        kSession.execute("testRuleAgain");
    }
}

When searching for the solution, I found the following link helpful:

• http://blog.athico.com/2013/12/deployment-with-drools-60.html

I hope someone finds this useful when getting SO as first search result ;-)

Answer 3

Here are the steps, All the steps are mandatory

• Add kie-clie dependency in your pom

  <dependency>
      <groupId>org.kie</groupId>
      <artifactId>kie-ci</artifactId>
      <version>6.2.0.Final</version>
  </dependency>
  

• Add your KIE workbench maven repo to your pom.xml

  <repository>
      <id>guvnor-m2-repo</id>
      <name>Guvnor M2 Repo</name>
      <url>http://localhost:8080/drools/maven2wb/</url>
  </repository>
  

• Add the dependency to your pom.xml

  <dependency>
      <groupId>groupId</groupId>
      <artifactId>artifactId</artifactId>
      <version>LATEST</version>
  </dependency>
  

• Provide your repo credentials into settings.xml

  <server>
      <id>guvnor-m2-repo</id>
      <username>admin</username>
      <password>@dmin</password>
  </server>
  

• Java code

  KieServices ks = KieServices.Factory.get();
  ReleaseId releaseId = ks.newReleaseId("groupID", "artifactID", "LATEST");
  KieContainer kieContainer = ks.newKieContainer(releaseId);
  KieSession kieSession = kieContainer.newKieSession();
  kieSession.insert(object);
  kieSession.fireAllRules();