July 2011 - rules-users - Jboss List Archives

by jmolly

Hello. I'm facing some problems in drools with salience. (maybe I don't understand how it works) We have a rule that check if an import has been satisfied by the client. But we have a lot of pay methods so, when the import has been satisfied, we have to stop all the payment devices. If a payment device is in use, we can't stop it, so we send stop commands until device can stop. The problem is that if a device is making a pay process, and consumes an event, that event is never fired. Maybe I can explain better with code: rule "Pay device stop" Salience 10 Try to stop the device and sends an OPERATION_IN event if can't stop (because there is a ticket inside) Machine rule rule "Operation in received witch devices not stopped" salience 10 Sent stop events to all devices Machine rule rule "Operation in received with devices stopped" salience 10 All ok. Finish operation rule "Ticket data read" salience 1000 updates the debt for the user and sends an OPERATION_IN The pay hardware, when is reading a ticket, sent a TICKET_DATA_READ this rule has salience 100 and should be fired inmediatly but Drools is entering all time in a bucle from Operation in received and Pay stop device. Can someone give a clue about what are we doing wrong? Sorry for the english. I can post the original code if needed. Thanks in advance -- View this message in context: http://drools.46999.n3.nabble.com/Problem-with-salience-tp3148382p3148382... Sent from the Drools: User forum mailing list archive at Nabble.com.

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How to periodically iterate over all facts in a stream

by isakdim

My initial attempt is for the application to periodically set focus to the "SomeAgendaGroup" and then wait for rule(s) to call GlobalServiceProvider.someService. On the first agenda activation, the rule iterates through all events. On the following agenda activations, the rule iterates only through the events that have been inserted since the last activation. rule "Iterate over all events in the SomeStream" agenda-group "SomeAgendaGroup" when $someEvent : SomeEvent() from entry-point "SomeStream" then GlobalServiceProvider.someService($someEvent); end Is there a way to implement a rule so that it iterates through all events each time its agenda-group is activated or a different way to implement this task? Thank You! -- View this message in context: http://drools.46999.n3.nabble.com/How-to-periodically-iterate-over-all-fa... Sent from the Drools: User forum mailing list archive at Nabble.com.

15 years

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How do we access all the values in an enum (Managed in Guvnor) in a rule of Guvnor

by Prasad

Hi All, We have a scenario where in we need to return the list of all values defined in an enumeration in Gunvor. Can we access the list of possible values defined in an enumeration as a collection in a rule instead of using them one at a time as in LOV. Thanks -- View this message in context: http://drools.46999.n3.nabble.com/How-do-we-access-all-the-values-in-an-e... Sent from the Drools: User forum mailing list archive at Nabble.com.

15 years

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Performance optimization guidelines for Drools

by Wishing Carebear

Hello, I'm trying to run a ruleflow (sequence of only rules) using Statteful and stateless session. Could you please point me to any performance optimization guideliness. Thanks

15 years

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Unittesting in drools ?

by Andre

hm, im trying out some rulez and im asking my self, Is there some Kind of Unittesting preconfigurated in that drools eclipse plugin ? i havent found that feature.. -- View this message in context: http://drools.46999.n3.nabble.com/Unittesting-in-drools-tp3137475p3137475... Sent from the Drools: User forum mailing list archive at Nabble.com.

15 years

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Drools Integration with Spring

by ketaki

Hi Experts, I am facing one issue while integrating drools with Spring. I have done the following configurations Beans.xml : <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:drools="http://drools.org/schema/drools-spring" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.directwebremoting.org/schema/spring-dwr http://www.directwebremoting.org/schema/spring-dwr-2.0.xsd http://drools.org/schema/drools-spring http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-containe..."> <bean id="droolsDAOImpl" class="com.dao.DroolsDAOImpl"> <property name="sessionFactory" ref="mySessionFactory" /> <property name="ksession" ref="ksession" /> <property name="intermediateData" ref="intermediateData" /> <property name="kbase" ref="kbase" /> </bean> <bean id="intermediateData" class="com.pojo.IntermediateData" /> <drools:kbase id="kbase"> <drools:resources> <drools:resource type="DRL" source="classpath:Sample.drl"></drools:resource> </drools:resources> </drools:kbase> <drools:ksession id="ksession" type="stateful" kbase="kbase"/> ---------------------------------------------------------------------------------------------------- DroolsDAOImpl.java : public class DroolsDAOImpl implements DroolsDAO { private StatefulKnowledgeSession ksession; private IntermediateData intermediateData; private KnowledgeBase kbase; public KnowledgeBase getKbase() { return kbase; } public void setKbase(KnowledgeBase kbase) { this.kbase = kbase; } public StatefulKnowledgeSession getKsession() { return ksession; } public void setKsession(StatefulKnowledgeSession ksession) { this.ksession = ksession; } public static void main(String args[]) throws Exception{ Resource res = new ClassPathResource("beans.xml"); BeanFactory factory = new XmlBeanFactory(res); DroolsDAOImpl droolsDAOImpl=(DroolsDAOImpl)factory.getBean("droolsDAOImpl"); droolsDAOImpl.init_drools(); } public void init_drools() throws Exception{ try { ksession = kbase.newStatefulKnowledgeSession(); intermediateData.setNoofPay(noofPaytemp()); intermediateData.setRegPay(regpaytemp()); ksession.insert(intermediateData); ksession.fireAllRules(); } catch (Throwable t) { logger.error("Exception occured in DroolsDAOImpl---"+t); throw new Exception("Some Error Occured. Please try after some time"); } } I am having one drl file : Sample.drl which contains rule and IntermediateData is simple pojo. But after running this I am getting following error: Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'drools:kbase'. Can anyone help me with this issue? Thanks in advance -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Integration-with-Spring-tp314794... Sent from the Drools: User forum mailing list archive at Nabble.com.

15 years

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Drools Integration with Spring

by Ketaki.Deshpande＠cognizant.com

Hi Experts, I am facing one issue while integrating drools with Spring. I have done the following configurations Beans.xml : <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:drools="http://drools.org/schema/drools-spring" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.directwebremoting.org/schema/spring-dwr http://www.directwebremoting.org/schema/spring-dwr-2.0.xsd http://drools.org/schema/drools-spring http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-contain er/drools-spring/src/main/resources/org/drools/container/spring/drools-s pring-1.0.0.xsd"> <bean id="droolsDAOImpl" class="com.dao.DroolsDAOImpl"> <property name="sessionFactory" ref="mySessionFactory" /> <property name="ksession" ref="ksession" /> <property name="intermediateData" ref="intermediateData" /> <property name="kbase" ref="kbase" /> </bean> <bean id="intermediateData" class="com.pojo.IntermediateData" /> <drools:kbase id="kbase"> <drools:resources> <drools:resource type="DRL" source="classpath:Sample.drl"></drools:resource> </drools:resources> </drools:kbase> <drools:ksession id="ksession" type="stateful" kbase="kbase"/> ------------------------------------------------------------------------ ---------------------------- DroolsDAOImpl.java : public class DroolsDAOImpl implements DroolsDAO { private StatefulKnowledgeSession ksession; private IntermediateData intermediateData; private KnowledgeBase kbase; public KnowledgeBase getKbase() { return kbase; } public void setKbase(KnowledgeBase kbase) { this.kbase = kbase; } public StatefulKnowledgeSession getKsession() { return ksession; } public void setKsession(StatefulKnowledgeSession ksession) { this.ksession = ksession; } public static void main(String args[]) throws Exception{ Resource res = new ClassPathResource("beans.xml"); BeanFactory factory = new XmlBeanFactory(res); DroolsDAOImpl droolsDAOImpl=(DroolsDAOImpl)factory.getBean("droolsDAOImpl"); droolsDAOImpl.init_drools(); } public void init_drools() throws Exception{ try { ksession = kbase.newStatefulKnowledgeSession(); intermediateData.setNoofPay(noofPaytemp()); intermediateData.setRegPay(regpaytemp()); ksession.insert(intermediateData); ksession.fireAllRules(); } catch (Throwable t) { logger.error("Exception occured in DroolsDAOImpl---"+t); throw new Exception("Some Error Occured. Please try after some time"); } } I am having one drl file : Sample.drl which contains rule and IntermediateData is simple pojo. But after running this I am getting following error: Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'drools:kbase'. Can anyone help me with this issue? Thanks in advance This e-mail and any files transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. Any unauthorised review, use, disclosure, dissemination, forwarding, printing or copying of this email or any action taken in reliance on this e-mail is strictly prohibited and may be unlawful.

15 years

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Do we have an user interface to declare enumerations in Guvnor

by Prasad

In guvnor, we can define enumeration using the syntax given. Ex: 'Vehicle.engineType' : ['Petrol', 'Diesel'] Is there a User Interface through which we can manage this list, so that a business user can just add to the list and not just type in the syntax given. -- View this message in context: http://drools.46999.n3.nabble.com/Do-we-have-an-user-interface-to-declare... Sent from the Drools: User forum mailing list archive at Nabble.com.

15 years

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Drools Ruleflow deadlock issue[thread]

by dhinesh kumar

Hi I am getting the below error while creating the ksession.startProcess() instance in multithread. i.e. two thread calling the ksession.startprocess() with the ruleflow as based on initial testing i identified due to delete or update sql operation the below is appearing. Please let me know how to solve this issue ERROR LOG: Hibernate: delete from ProcessInstanceInfo where InstanceId=? and OPTLOCK=? Hibernate: delete from ProcessInstanceInfo where InstanceId=? and OPTLOCK=? 2011/07/04 11:20:06.475{UTC} [JDBCExceptionReporter : JDBCExceptionReporter.java: logExceptions: 100] [RMI TCP Connection(6)-10.50.53.32]: WARN: : SQL Error: 60, SQLState: 61000 2011/07/04 11:20:06.475{UTC} [JDBCExceptionReporter : JDBCExceptionReporter.java: logExceptions: 101] [RMI TCP Connection(6)-10.50.53.32]: ERROR: : ORA-00060: deadlock detected while waiting for resource 2011/07/04 11:20:06.475{UTC} [AbstractFlushingEventListener : AbstractFlushingEventListener.java: performExecutions: 324] [RMI TCP Connection(6)-10.50.53.32]: ERROR: : Could not synchronize database state with session org.hibernate.exception.LockAcquisitionException: could not delete: [org.drools.persistence.processinstance.ProcessInstanceInfo#8130] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:112)...... Regards Dhinesh Kumar V

15 years

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Can a ruleflow be executed with a stateless session

by Wishing Carebear

15 years

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rules-users July 2011