Thank you in advance.
2014-06-04 18:29 GMT+02:00 Charles Moulliard ch0...@gmail.com:
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 scerqu...@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,
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--
Charles Moulliard
Apache Committer / Architect @RedHat
Twitter : @cmoulliard | Blog : http://cmoulliard.github.io
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