[jboss-jira] [JBoss JIRA] Created: (JBRULES-2150) stream mode requires DroolsStreamUtils

[Jaroslaw Kijanowski (JIRA)]

stream mode requires DroolsStreamUtils
--------------------------------------

                 Key: JBRULES-2150
                 URL: https://jira.jboss.org/jira/browse/JBRULES-2150
             Project: JBoss Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-core (fusion)
    Affects Versions: 5.0.1.FINAL
            Reporter: Jaroslaw Kijanowski
            Assignee: Edson Tirelli
         Attachments: cep.drl, CEPTest.java, Sensor.java

I'm using sliding windows (hence stream mode).
Here's my rule:

rule 'r'
when
Number( dv:doubleValue > 1 ) from accumulate(
        Sensor( $v : value ) over window:length( 2 ),
        average( $v ) )
then
    System.out.println(dv);
end

Here's my class:

++++++++++++++++++++++++++++++++++++++++++++++
public class CEPTest {
  public static void main(String[] args) throws Exception {
.
.
.
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
    KnowledgeBase kbase2 = (KnowledgeBase) DroolsStreamUtils.streamIn(DroolsStreamUtils.streamOut(kbase), null);

    final StatefulKnowledgeSession ksession = kbase2.newStatefulKnowledgeSession();

    System.out.println("T1");
    ksession.insert(new Sensor(1.0));
    ksession.fireAllRules();

    System.out.println("T2");
    ksession.insert(new Sensor(2.0));
    ksession.fireAllRules();

    System.out.println("T3");
    ksession.insert(new Sensor(3.0));
    ksession.fireAllRules();

    ksession.dispose();
  }
}
++++++++++++++++++++++++++++++++++++++++++++++
The output is (as expected):
+++++++++++++++
T1
T2
1.5
T3
2.5
+++++++++++++++

I'm wondering why I have to use DroolsStreamUtils to get a knowledge base? When I use kbase (which didn't went through DroolsStreamUtils) instead of kbase2 to create a new session, the output will be:
+++++++++++++++
T1
T2
2.0
T3
3.0
+++++++++++++++ 

Attaching all 3 files needed to reproduce - rule, model and test.

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