[rules-users] Fuse ESB & Drools 6 - Fire-until-halt configuration using persistence
Sergio Besada
scerquido at gmail.com
Tue Jun 17 08:10:37 EDT 2014
Maybe I'm wrong and I cannot use this configuration because in some case
fail
2014-06-17 13:57 GMT+02:00 Sergio Besada <scerquido at gmail.com>:
> Hi,
>
> I have seen that in the drools version 6.1.0.Beta4, the command
> fire-until-halt is developed using persistence but drools doesn't let me
> test it because this command implement the interface
> "UnpersistableCommand" so I have eliminated this interface and I have
> tested this configuration.
>
> Surprisingly, Drools works as I expected and doesn't throw any exception,
> ¿Where is the problem in this configuration?
>
> Here 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-until-halt/>
> </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"/>
>
> <bean id="fireUntilHaltCommand"
> class="com.execute.command.FireUntilHalt"/>
>
> <bean id="factStudent" class="com.test.facts.Student"/>
>
> <camelContext xmlns="http://camel.apache.org/schema/spring">
> <route trace="false" id="testRoute">
> <from uri="timer:testRoute?period=10s"/>
> <to uri="log:message"/>
> <bean method="initStudent" ref="factStudent"/>
> <to uri="kie:ksession1?action=insertBody" id="AgeVerification"/>
> <!--
> <bean method="fireUntilHalt" ref="fireUntilHaltCommand"/>
>
> <to uri="kie:ksession1?action=execute"/>
> -->
> </route>
> </camelContext>
>
> </beans>
>
>
> PD: I have attached my example , it's a maven project
>
>
>
>
> 2014-06-04 19:04 GMT+02:00 Sergio Besada <scerquido at gmail.com>:
>
>> Thank you in advance.
>>
>>
>> 2014-06-04 18:29 GMT+02:00 Charles Moulliard <ch007m at 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 <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
>>>
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>
>>
>
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