June 2014 - rules-users - Jboss List Archives

Searching for an object in a list inside a map

by Steinmetz, Jean-Philippe

Hello, I have a scenario where I have a rule that is searching for a particular object inside a list and the list is an entry in a hashmap. An example of the class structure looks something like this. class Player { String name; } class TeamRoster { // Maps team name to players Map<String, List<Player>> teams; } The goal of the rule is to activate when there is a player named John on the Dodgers team. I have tried writing rules a couple of ways but end up with errors using either approach. My first approach was the following: dialect "mvel" rule when $roster : TeamRoster() $player : Player(name == "John") from $roster.teams["Dodgers"] then ... end However this resulted in the following error: Unable to Analyse Expression $roster.teams["Dodgers"]: sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to java.lang.Class] So I tried changing it up with the following... dialect "mvel" rule when $roster : TeamRoster() $player : Player(name == "John") eval($roster.teams["Dodgers"] contains $player then ... end This effectively yields the same error: Expression $roster.teams["Dodgers"] contains $player: sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to java.lang.Class] Note I am using Drools 6.0.1.Final. Is this some sort bug or limitation with the rules parser? Assuming I cannot change the class structure how can I achieve what I need? Thanks in advance, Jean-Philippe Steinmetz

11 years, 6 months

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Any way to housekeep "Version History" of business rule assets using guvnor

by nelson.wan

Hello all, Using guvnor, all business rule assets have their own "version history" for every save changes. We hope to know if there is any way (version 5.6.0.final) to purge old version history, to avoid the list growing very large. Many thanks for your help. I am using: Drools 5.6.0.final JBoss EAP 6.2.0.GA Thanks, Nelson -- View this message in context: http://drools.46999.n3.nabble.com/Any-way-to-housekeep-Version-History-of... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 6 months

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Strange behaviour with maximumSecondsSpend termination in combination with PlanningVariableListener

by dBijkoo

When i use the maximumSecondsSpend termination variable in the solverconfig it doesnt always fully process the methods in the PlanningVariableListener<Entity>. Most of the time it gives me a solution with "semi" done shadow variables but not always. However when i change the termination to require a "scoreAttained" it always gives me a solution with the correct processed shadow variables. Any ideas why this might happen? -- View this message in context: http://drools.46999.n3.nabble.com/Strange-behaviour-with-maximumSecondsSp... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 6 months

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Lock-on-active and FROM

by FrankVhh

Hello all It has been a while since I posted on this forum as I was assigned to other tasks for a while. Anyway, I have not forgotten about the source of knowledge that is this user forum! We are using Drools 5.3.0. In the expert manual, section 5.8.3.6.2, the odd behavior of lock-on-active and FROM is highlighted. However, we cannot reproduce this reported behaviour. See annex for .java file and drl file. In the documentation, it is sated that only one rule should fire, in the example and as we run it, we can get both rule activations to execute. Could anyone cast the bright light of explanation on this phenomenon? It would also be helpful if someone could provide us with some additional information about why you should expect only one rule to fire. Thank you very much for your time and highly appreciated explanations! Sample.drl <http://drools.46999.n3.nabble.com/file/n4030146/Sample.drl> DroolsTest.java <http://drools.46999.n3.nabble.com/file/n4030146/DroolsTest.java> -- View this message in context: http://drools.46999.n3.nabble.com/Lock-on-active-and-FROM-tp4030146.html Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 6 months

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(no subject)

by Konstantinos Souvatzopoulos

konsouv(a)gmail.com

11 years, 6 months

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Drools 6 Fusion Example

by rjr201

Hi, Does anyone know of a simple (complete) working example of a Drools Fusion project using Drools 6? My kModule.xml file so far looks like this: <?xml version="1.0" encoding="UTF-8"?> <kmodule xmlns="http://jboss.org/kie/6.0.0/kmodule"> <kbase name="KBase1" default="false" eventProcessingMode="stream" equalsBehavior="equality" declarativeAgenda="enabled" packages="org.domain.pkg2, org.domain.pkg3" includes="KBase1"> <ksession name="KSession1" type="stateful" default="false" clockType="realtime"> </ksession> </kbase> </kmodule> However, I think I need to define an entryPoint in the kmodule.xml.. but can't find an example of how to do this. If anyone can point me to an example it would be greatly appreciated. Cheers, Rich -- View this message in context: http://drools.46999.n3.nabble.com/Drools-6-Fusion-Example-tp4030139.html Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 6 months

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Guvnor on weblogic

by konsouv

Hello guys, A little help please. I want to deploy guvnor on weblogic version 12.1.2.0.0. I downloaded guvnor-distribution-wars-5.6.1-20140618.143413-14-weblogic-12c from http://snapshots.jboss.org/maven2/org/drools/guvnor-distribution-wars/5.6... When I deploy it I get the following stack trace. <Error> <Console> <Souvatzop-HP> <myserver> <[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'> <weblogic> <> <> <1403598617528> <BEA-240003> <Administration Console encountered the following error: weblogic.application.ModuleException: java.lang.UnsupportedOperationException: ERROR: GWT.create() is only usable in client code! It cannot be called, for example, from server code. If you are running a unit test, check that your test case extends GWTTestCase and that GWT.create() is not called from within an initializer or constructor. at weblogic.application.internal.ExtensibleModuleWrapper.prepare(ExtensibleModuleWrapper.java:114) at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:100) at weblogic.application.internal.flow.ModuleStateDriver$1.next(ModuleStateDriver.java:172) at weblogic.application.internal.flow.ModuleStateDriver$1.next(ModuleStateDriver.java:167) at weblogic.application.utils.StateMachineDriver$ParallelChange.run(StateMachineDriver.java:80) at weblogic.work.ContextWrap.run(ContextWrap.java:40) at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:550) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:295) at weblogic.work.ExecuteThread.run(ExecuteThread.java:254) Caused by: java.lang.UnsupportedOperationException: ERROR: GWT.create() is only usable in client code! It cannot be called, for example, from server code. If you are running a unit test, check that your test case extends GWTTestCase and that GWT.create() is not called from within an initializer or constructor. at com.google.gwt.core.client.GWT.create(GWT.java:91) at com.google.gwt.user.client.ui.UIObject.<clinit>(UIObject.java:187) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:270) at com.oracle.injection.integration.CDIModuleExtension.addClassToSet(CDIModuleExtension.java:439) at com.oracle.injection.integration.CDIModuleExtension.getWebInfClassesManagedBeanClasses(CDIModuleExtension.java:381) at com.oracle.injection.integration.CDIModuleExtension.loadManagedBeanClassesFromWebArchive(CDIModuleExtension.java:338) at com.oracle.injection.integration.CDIModuleExtension.createWebModuleInjectionArchive(CDIModuleExtension.java:191) at com.oracle.injection.integration.CDIModuleExtension.createInjectionArchive(CDIModuleExtension.java:179) at com.oracle.injection.integration.CDIModuleExtension.postPrepare(CDIModuleExtension.java:85) at weblogic.application.internal.ExtensibleModuleWrapper$PrepareStateChange.next(ExtensibleModuleWrapper.java:297) at weblogic.application.internal.ExtensibleModuleWrapper$PrepareStateChange.next(ExtensibleModuleWrapper.java:285) at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:42) at weblogic.application.internal.ExtensibleModuleWrapper.prepare(ExtensibleModuleWrapper.java:109) After some research I think that the problem is that the beans.xml file in WEB-INF folder is not read during deployment. It is not considered at all. Is there any advice for me that could help me complete the deployment? Thank you in advance. -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-on-weblogic-tp4030143.html Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 6 months

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Size and contains methods of List in Drools

by Sumit Dhaniya

Is it possible write conditions on the basis of size of a list using guided editors (either guided decision table or guided rule) and to check if any element is present in the list? For eg. User { List of badges; } now I want to apply condition on number of badges and if a specific badge is in user's list of badges. Also can I compare to objects. For eg. condition on count of badges of two users? I'm using KIE Drools Workbench Here's how source code should look like :- import com.demo.dto.User; import com.demo.dto.Badge; rule "Compare two variables" when $user: User(name == "Sam") $badge: Badge() memberOf $user.getBadges() then $user.setImpact($user.getImpact + $user.getBadges().size()) -- View this message in context: http://drools.46999.n3.nabble.com/Size-and-contains-methods-of-List-in-Dr... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 6 months

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unsubscribed from the rules-users mailing list

by Wolfgang Laun

Friends, this is to let you know that I have done as the subject says. I'd like to thank all that have contributed for their continuing efforts. As for myself: I think that this is a good moment to retire, with my rapidly diminishing capability of understanding what's going on in Guvnor, Optaplanner and other newfangled extensions. Hitting the "delete" button on some incoming email has been the one thing I've managed to do faithfully, and frequently. Thanks again, and it's been *very* nice meeting you. Wolfgang

11 years, 6 months

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Getting Error while building the war from kie-wb-distributions-master source code

by LaKhI ReDdY!!!!!!!!!!!

Hi , I am trying to run mvn clean install on the kie-wb-distributions-master source code, getting the below error.Please find the attachment for more details on the error. C:\Users\reddyl\RECOSYS\BRMS6\kie-wb\kie-wb-webapp\target\. generated, *org.kie.workbench.FastCompiledKIEWebapp]: Error while executing process. Cannot run program "C:\Program Files\Java\jdk1.6.0_27\jre\bin\java* *": CreateProcess error=206, The filename or extension is too long* could you please let me know any workaround on this issue? Regards, Lakshmi Reddy

11 years, 6 months

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rules-users June 2014