[rules-users] Fuse ESB & Drools 6 problem

[Charles Moulliard]

I will have a look to your use case as it is not yet covered and will
perhaps require that we modify the kie-camel component


On Wed, Jun 4, 2014 at 6:02 PM, s b <scerquido at gmail.com> wrote:

> I'm testing the drools new version (6.1.0.Beta4) but I have a problem with
> the Stateful Drools Session.
>
> I have deployed in JBoss Fuse ESB the last versión of the drools (drools
> camel, jbpm, spring, etc), I have atached my camel context bundle (It's a
> maven project).
>
> This is my camel-context
>
> <?xml version="1.0" encoding="UTF-8"?>
> <beans xmlns="http://www.springframework.org/schema/beans"
>        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>        xmlns:kie="http://drools.org/schema/kie-spring"
>        xsi:schemaLocation="
>        http://www.springframework.org/schema/beans
>        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
>        http://drools.org/schema/kie-spring
> http://drools.org/schema/kie-spring.xsd
>        http://camel.apache.org/schema/spring
> http://camel.apache.org/schema/spring/camel-spring.xsd">
>
>
>
>  <kie:kmodule id="kModule">
>         <kie:kbase name="rules" packages="rules">
>             <kie:ksession name="ksession1" type="stateful">
>             <!--<kie:batch>
>                <kie:fire-all-rules/>
>                </kie:batch> -->
>             <kie:configuration>
>                 <kie:jpa-persistence>
>                     <kie:transaction-manager ref="txManager"/>
>                     <kie:entity-manager-factory ref="myEmf"/>
>                 </kie:jpa-persistence>
>             </kie:configuration>
>
>
>             </kie:ksession>
>         </kie:kbase>
>     </kie:kmodule>
>
>     <kie:environment id="env">
>        <kie:entity-manager-factory ref="myEmf"/>
>         <kie:transaction-manager ref="txManager"/>
>     </kie:environment>
>
>
>   <bean class="org.postgresql.ds.PGPoolingDataSource" id="jbpm-ds">
>    <property name="serverName" value="localhost"></property>
>    <property name="databaseName" value="drools"></property>
>    <property name="portNumber" value="5432"></property>
>    <property name="user" value="DWP"></property>
>    <property name="password" value="DWP"></property>
>   </bean>
>
>
>     <bean id="myEmf"
> class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
>         <property name="dataSource" ref="jbpm-ds"/>
>         <property name="persistenceUnitName"
> value="org.jbpm.persistence.jpa.local"/>
>     </bean>
>
>     <bean id="txManager"
> class="org.springframework.orm.jpa.JpaTransactionManager">
>         <property name="entityManagerFactory" ref="myEmf"/>
>     </bean>
>
>     <bean id="kiePostProcessor"
> class="org.drools.osgi.spring.OsgiKModuleBeanFactoryPostProcessor"/>
>
>     <bean id="fireALlRulesCommand"
> class="com.execute.command.FireAllRules"/>
>
>   <camelContext xmlns="http://camel.apache.org/schema/spring">
>     <route trace="false" id="testRoute">
>         <from uri="timer:testRoute?period=10s"/>
>          <to uri="log:message"/>
>          <to uri="kie:ksession1?action=insertBody" id="AgeVerification"/>
>
>          <bean method="fireAllRules" ref="fireALlRulesCommand"/>
>          <to uri="kie:ksession1?action=execute"/>
>
>     </route>
>   </camelContext>
>
> </beans>
>
> As you can see it is an scenario where Drools is in an stateful session
> with persistence configured.
>
> The bundle is executed without errors but I want that Drools executes my
> rules each time that the route is executed ( fireUntilHalt mode but I
> wasn't able as seems that this command is not availble in a persisted
> environment ), for this reason I've created a bean with the command:
> fireAllRules and I use <to uri="kie:ksession1?action=execute"/> to execute
> the rules but the problem is that the rules are only executed the first
> time, only the first time and never in subsequents executions of the route.
>
>  The persistece seems to  work well ( I can see the datamodel created and
> populated as expeted in the DB ).
>
> However if I change to use stateless mode  ( no persistence then ), the
> rules are executed each time that route is executed ( as expected ), and
> therefore I don´t need the command fireAllRules
> <bean method="fireAllRules" ref="fireALlRulesCommand"/>
>  <to uri="kie:ksession1?action=execute"/>
>
>
>
> Questions:
>
> Is it possible to have a stateful fireUntilHalt drools session that keeps
> using the same knowledge session in subsequent camel route executions?
>
> If it is not possible, Can I have a stateful ( persisted )drools session
> and invoke "fireAllRules" whenever I make changes in the knowledge session
> ( new Facts are inserted )?
>
> I've deep dived into the web looking for examples or documentation of this
> scenario both in Spring and Blueprint. Does anyone of you have any pointers
> to documentation on the matter?
>
> Kind Regards,
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>



-- 
Charles Moulliard
Apache Committer / Architect @RedHat
Twitter : @cmoulliard | Blog :  http://cmoulliard.github.io
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20140604/7b805cfd/attachment.html