How to execute Guided decision table rules from workbench in java application?

hareesh kumar

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Jul 19, 2016, 5:29:07 AM7/19/16

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Hi,

I am using Drools workbench 6.4.0 FINAL and defined rules using guided decision table.

String url = "http://localhost:8080/kie-drools-wb/maven2wb/test/test/1.0/test-1.0.jar";

KieServices ks = KieServices.Factory.get();

ReleaseId releaseId = ks.newReleaseId( "test", "test", "1.0" );

ks.getResources().newUrlResource(url);

KieContainer kieContainer = ks.newKieContainer(releaseId);

am not able to find how to execute guided decision table rules from remote maven using java application.

Can any one tell me how to do that....

Thanks in advance.

Michael Anstis

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Jul 19, 2016, 6:06:00 AM7/19/16

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Have a look at this, it's a bunch of unit test showing use of a KJAR deployed to Maven.

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hareesh kumar

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Jul 19, 2016, 7:10:27 AM7/19/16

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Thanks @Michael

Actually am trying to integrate workbench rules with java application. I want to define the rules in work bench and execute through java application.

I have written code like below,

public static void main(String[] args) {

String url = "http://ip:8080/kie-drools-wb/maven2wb/vm/vm/1.0/vm-1.0.jar";

ReleaseIdImpl releaseId = new ReleaseIdImpl( "vm", "vm", "1.0" );

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);

Scanner scanner = new Scanner(System.in);

runRule(kieContainer);

}

private static void runRule(KieContainer kieKontainer) {

KieSession kSession = kieKontainer.newKieSession();

Test test = new Test(0, "", "", "", 1, 15345, 50, true, 1, 0);

kSession.insert(test);

System.out.println(kSession.fireAllRules());

}

and response was :

[main] WARN org.kie.scanner.embedder.MavenSettings - Environment variable M2_HOME is not set

[main] INFO org.drools.compiler.kie.builder.impl.KieRepositoryImpl - KieModule was added: ZipKieModule[releaseId=vm:vm:1.0,file=C:\Users\Hareesh\.m2\repository\vm\vm\1.0\vm-1.0.jar]

Fired rules: 0

Is there any mistake in my code, can you please tell me or can you provide any documentation. am spending too much time..

Thanks in advance.

Michael Anstis

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Jul 19, 2016, 9:21:43 AM7/19/16

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Can you provide all your rule definitions in the test-1.0.jar?

I assume there were no errors when running your test?

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Message has been deleted

hareesh kumar

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Jul 19, 2016, 10:56:42 AM7/19/16

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Hi @Michael,

I have attached jar file. (Note: .jar is not accepting to attach so renamed it to .jar1)

And here is my java code:

public class Test {

public static void main(String[] args) {

String url = "http://localhost:8080/kie-drools-wb/maven2wb/test/Testing/1.0/Testing-1.0.jar";

ReleaseIdImpl releaseId = new ReleaseIdImpl( "test", "Testing", "1.0" );

KieServices ks = KieServices.Factory.get();

ks.getResources().newUrlResource(url);

KieContainer kieContainer = ks.newKieContainer(releaseId);

KieScanner kieScanner = ks.newKieScanner(kieContainer);

kieScanner.start(5000L);

Scanner scanner = new Scanner(System.in);

runRule(kieContainer);

}

private static void runRule(KieContainer kieKontainer) {

KieSession kSession = kieKontainer.newKieSession();

PersonDetails details = new PersonDetails();

details.setAge(20);

kSession.insert(details);

System.out.println("Fired rules: " + kSession.fireAllRules());

}

pom.xml

<groupId>testkjar</groupId>

<artifactId>testkjar</artifactId>

<version>0.0.1-SNAPSHOT</version>