[rules-users] Guided editor (BRL) rules in the drools-examples-brms dont work

Edgardo edgardoibanez at gmail.com
Tue Aug 7 16:20:44 EDT 2007


Hi, How I can import the package classes for MVEL? I import the Java  
Classes in the package configuration, is this sufficient one?

Really thanks

En Tue, 07 Aug 2007 15:59:29 -0400, Mark Proctor <mproctor at codehaus.org>  
escribió:

> MVEL does not dynamically import package classes, they must be imported  
> manually, so I actually imagine its that. the consequence syntax you  
> have is valid for both java and MVEL.
>
> Mark
> Edgardo wrote:
>> Hi,finally the problem is the guided editor, the code generated in  
>> assert fact is not for the mvel compiler, the solution for mi problem  
>> was add a new dialect option with "java" parameter.
>>
>> - The source code of the rule:
>>
>> rule "Driver is crazy"
>>     dialect "java"
>>     when
>>          Driver( age >= "20"  && < "25" , locationRiskProfile == "HIGH"  
>> , name == "Fernando Meyer" )
>>          Policy( type == "PROBLEMATIC" )
>>     then
>>     insert(new Rejection(" Go away drunk "));
>> end
>>
>> - The result:
>>
>> RuleAgent(insuranceconfig) INFO (Tue Aug 07 09:56:30 CLT 2007):  
>> Configuring with newInstance=true, secondsToRefresh=30
>> RuleAgent(insuranceconfig) INFO (Tue Aug 07 09:56:30 CLT 2007):  
>> Configuring package provider : URLScanner monitoring URLs:   
>> http://localhost:8080/drools-jbrms/org.drools.brms.JBRMS/package/org.acme.insurance/InsuranceSnapshot  
>> RuleAgent(insuranceconfig) INFO (Tue Aug 07 09:56:31 CLT 2007):  
>> Applying changes to the rulebase.
>> RuleAgent(insuranceconfig) INFO (Tue Aug 07 09:56:31 CLT 2007):  
>> Creating a new rulebase as per settings.
>> RuleAgent(insuranceconfig) INFO (Tue Aug 07 09:56:31 CLT 2007): Adding  
>> package called org.acme.insurance
>> REJECTED:  Go away drunk
>>
>> :):):)
>>
>> I hope my solution work for anybody have the same problem
>>
>> PD: The classpath was not the problem.
>>
>> Thanks, see you in another post :)
>>
>>
>> En Mon, 06 Aug 2007 12:28:37 -0400, Mark Proctor  
>> <mproctor at codehaus.org> escribió:
>>
>>> Edgardo wrote:
>>>> Hi, when I use the BRL editor, I can't edit the source code of the  
>>>> rule, that is available in read-only mode, when you or other users  
>>>> fire this rules, you don't have this problem ?
>>>>
>>> The BRL editor does not allow the source code to be edited, so you'll  
>>> have to accept what it generates for now.
>>>> RuleAgent(insuranceconfig) INFO (Fri Aug 03 16:05:58 CLT 2007):
>>>> Adding package called org.acme.insurance
>>>> org.mvel.CompileException: class or class reference not found:  
>>>> Rejection()
>>>> at  
>>>> org.mvel.optimizers.impl.asm.ASMAccessorOptimizer.optimizeObjectCreation(ASMAccessorOptimizer.java:1771)
>>> This issue means the compiler cannot find your model, the class  
>>> Rejection is not in the classpath.
>>>>
>>>> Greetings
>>>>
>>>> En Mon, 06 Aug 2007 08:00:47 -0400, Mark Proctor  
>>>> <mproctor at codehaus.org> escribió:
>>>>
>>>>> btw if you are using the mvel dialect you can just do
>>>>> fact0 = new Rejection();
>>>>> fact0.reason = "Go away drunk" ;
>>>>> insert( fact0 );
>>>>>
>>>>> MVEL has type inference, so it doesn't need to be used explicitley  
>>>>> and also javascript style property accessors.
>>>>>
>>>>> Mark
>>>>> Edgardo wrote:
>>>>>> Hi fernando, the package source code is:
>>>>>>
>>>>>> package org.acme.insurance
>>>>>> import org.acme.insurance.Driver
>>>>>> import org.acme.insurance.Approve
>>>>>> import org.acme.insurance.Policy
>>>>>> import org.acme.insurance.Rejection
>>>>>>
>>>>>> ...
>>>>>>
>>>>>> rule "Driver is crazy"
>>>>>>     dialect "mvel"
>>>>>>     when
>>>>>>         Driver( age >= "20"  && < "25" , locationRiskProfile ==  
>>>>>> "HIGH" , name == "Fernando Meyer" )
>>>>>>         Policy( type == "PROBLEMATIC" )
>>>>>>     then
>>>>>>         Rejection fact0 = new Rejection();
>>>>>>         fact0.setReason( "Go away drunk" );
>>>>>>         insert( fact0 );
>>>>>> end
>>>>>>
>>>>>> ...
>>>>>>
>>>>>> I import this from repository_export.xml in the resource folder,  
>>>>>> and for fire "Driver is crazy" rule, I append the next code to  
>>>>>> InsuranceBusiness class:
>>>>>>
>>>>>> public void executeExample() throws Exception {
>>>>>>         RuleBase ruleBase = loadRuleBase();
>>>>>>
>>>>>>         testUnsafeDriver(ruleBase);
>>>>>>         testSafeMature(ruleBase);
>>>>>>         testUnsafeAreaAndPriors(ruleBase);
>>>>>>         testDriverIsCrazy(ruleBase);  //-----> This
>>>>>>     }
>>>>>>
>>>>>> /*** And this method ***/
>>>>>>
>>>>>> private void testDriverCrazy(RuleBase ruleBase) {
>>>>>>         StatefulSession session = ruleBase.newStatefulSession();
>>>>>>                Driver driver = new Driver();
>>>>>>         driver.setAge(new Integer(23));
>>>>>>         driver.setLocationRiskProfile("HIGH");
>>>>>>         driver.setName("Fernando Meyer");
>>>>>>                Policy policy = new Policy();
>>>>>>         policy.setType("PROBLEMATIC");
>>>>>>         policy.setApproved(false);
>>>>>>                session.insert(driver);
>>>>>>         session.insert(policy);
>>>>>>         session.fireAllRules();
>>>>>>     }
>>>>>>
>>>>>> In the example you dont fire the rules where I have the problems
>>>>>>
>>>>>> Thanks and sorry again for my english
>>>>>>
>>>>>> Greetings
>>>>>>
>>>>>> En Sun, 05 Aug 2007 11:46:14 -0400, Fernando Meyer  
>>>>>> <fmcamargo at gmail.com> escribió:
>>>>>>
>>>>>>> Hi Eduardo,
>>>>>>>
>>>>>>>     Probably you missed some importing statement in your package  
>>>>>>> configuration, check this please;
>>>>>>>
>>>>>>> Regards
>>>>>>>
>>>>>>> Fernando Meyer http://fmeyer.org
>>>>>>> fmcamargo at gmail.com
>>>>>>> PGP: 0xD804DDFB
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Aug 4, 2007, at 4:49 PM, Edgardo wrote:
>>>>>>>
>>>>>>>> Hi list, I post my problem in the rules-dev list. The problem is  
>>>>>>>> execute the "Driver is Crazy", "Driver is too old" and "Driver  
>>>>>>>> special age Approved" rules. I have the problem of the next  
>>>>>>>> section:
>>>>>>>>
>>>>>>>>> Edgardo wrote:
>>>>>>>>>> Yes, I did it, in the package configuration. I use the  
>>>>>>>>>> drools-4.0.0-brms version. The problem is at the moment to  
>>>>>>>>>> evaluate the next generate code of the rule:
>>>>>>>>>>
>>>>>>>>>> then
>>>>>>>>>>         Rejection fact0 = new Rejection();
>>>>>>>>>>         fact0.setReason( "Driver too old" );
>>>>>>>>>>         insert( fact0 );
>>>>>>>>>>
>>>>>>>>>> If I use the Technical rule text editor, i dont have any  
>>>>>>>>>> problem.
>>>>>>>>>>
>>>>>>>>>> Greetings from Chile :)
>>>>>>>>>>
>>>>>>>>>> En Fri, 03 Aug 2007 19:06:05 -0400, Mark Proctor  
>>>>>>>>>> <mproctor at codehaus.org> escribió:
>>>>>>>>>>
>>>>>>>>>>> did you upload your model and import it?
>>>>>>>>>>>
>>>>>>>>>>> Mark
>>>>>>>>>>> Edgardo wrote:
>>>>>>>>>>>> Hi rules-dev list, (my english is very poor, sorry) I am  
>>>>>>>>>>>> interested in using the
>>>>>>>>>>>> BRMS of JBoss Rules, but when I use the guided editor, this  
>>>>>>>>>>>> rules dont
>>>>>>>>>>>> work, and in drools-examples-brms example, this dont work  
>>>>>>>>>>>> too, the error message (in the
>>>>>>>>>>>> "Driver is Crazy" rule)is:
>>>>>>>>>>>>
>>>>>>>>>>>> RuleAgent(insuranceconfig) INFO (Fri Aug 03 16:05:58 CLT  
>>>>>>>>>>>> 2007): Adding
>>>>>>>>>>>> package called org.acme.insurance
>>>>>>>>>>>> org.mvel.CompileException: class or class reference not  
>>>>>>>>>>>> found: Rejection()
>>>>>>>>>>>>     at
>>>>>>>>>>>> org.mvel.optimizers.impl.asm.ASMAccessorOptimizer.optimizeObjectCreation(ASMAccessorOptimizer.java:1771)      
>>>>>>>>>>>> at
>>>>>>>>>>>> org.mvel.ast.NewObjectNode.getReducedValueAccelerated(NewObjectNode.java:49)      
>>>>>>>>>>>> at org.mvel.MVELRuntime.execute(MVELRuntime.java:87)
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.mvel.CompiledExpression.getValue(CompiledExpression.java:98)  
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.mvel.CompiledExpression.getValue(CompiledExpression.java:93)  
>>>>>>>>>>>>     at
>>>>>>>>>>>> org.mvel.ast.TypedVarNode.getReducedValueAccelerated(TypedVarNode.java:36)      
>>>>>>>>>>>> at org.mvel.MVELRuntime.execute(MVELRuntime.java:87)
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.mvel.CompiledExpression.getValue(CompiledExpression.java:98)  
>>>>>>>>>>>>     at org.mvel.MVEL.executeExpression(MVEL.java:202)
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:32)  
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:545)  
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:509)  
>>>>>>>>>>>>     at
>>>>>>>>>>>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:430)      
>>>>>>>>>>>> at
>>>>>>>>>>>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:392)      
>>>>>>>>>>>> at
>>>>>>>>>>>> org.acme.insurance.launcher.InsuranceBusiness.testDriverCrazy(InsuranceBusiness.java:93)      
>>>>>>>>>>>> at
>>>>>>>>>>>> org.acme.insurance.launcher.InsuranceBusiness.executeExample(InsuranceBusiness.java:19)      
>>>>>>>>>>>> at  
>>>>>>>>>>>> org.acme.insurance.launcher.MainClass.main(MainClass.java:13)
>>>>>>>>>>>> org.drools.spi.ConsequenceException:  
>>>>>>>>>>>> org.mvel.CompileException: class or
>>>>>>>>>>>> class reference not found: Rejection()
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:549)  
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:509)  
>>>>>>>>>>>>     at
>>>>>>>>>>>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:430)      
>>>>>>>>>>>> at
>>>>>>>>>>>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:392)      
>>>>>>>>>>>> at
>>>>>>>>>>>> org.acme.insurance.launcher.InsuranceBusiness.testDriverCrazy(InsuranceBusiness.java:93)      
>>>>>>>>>>>> at
>>>>>>>>>>>> org.acme.insurance.launcher.InsuranceBusiness.executeExample(InsuranceBusiness.java:19)      
>>>>>>>>>>>> at  
>>>>>>>>>>>> org.acme.insurance.launcher.MainClass.main(MainClass.java:13)
>>>>>>>>>>>> Caused by: org.mvel.CompileException: class or class  
>>>>>>>>>>>> reference not found:
>>>>>>>>>>>> Rejection()
>>>>>>>>>>>>     at
>>>>>>>>>>>> org.mvel.optimizers.impl.asm.ASMAccessorOptimizer.optimizeObjectCreation(ASMAccessorOptimizer.java:1771)      
>>>>>>>>>>>> at
>>>>>>>>>>>> org.mvel.ast.NewObjectNode.getReducedValueAccelerated(NewObjectNode.java:49)      
>>>>>>>>>>>> at org.mvel.MVELRuntime.execute(MVELRuntime.java:87)
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.mvel.CompiledExpression.getValue(CompiledExpression.java:98)  
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.mvel.CompiledExpression.getValue(CompiledExpression.java:93)  
>>>>>>>>>>>>     at
>>>>>>>>>>>> org.mvel.ast.TypedVarNode.getReducedValueAccelerated(TypedVarNode.java:36)      
>>>>>>>>>>>> at org.mvel.MVELRuntime.execute(MVELRuntime.java:87)
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.mvel.CompiledExpression.getValue(CompiledExpression.java:98)  
>>>>>>>>>>>>     at org.mvel.MVEL.executeExpression(MVEL.java:202)
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:32)  
>>>>>>>>>>>>     at  
>>>>>>>>>>>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:545)  
>>>>>>>>>>>>     ... 6 more
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks :), I am waiting for you response...
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> _______________________________________________
>>>>>>>>>>> rules-dev mailing list
>>>>>>>>>>> rules-dev at lists.jboss.org
>>>>>>>>>>> https://lists.jboss.org/mailman/listinfo/rules-dev
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> rules-dev mailing list
>>>>>>>>> rules-dev at lists.jboss.org
>>>>>>>>> https://lists.jboss.org/mailman/listinfo/rules-dev
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --Edgardo Ibañez O.
>>>>>>>> _______________________________________________
>>>>>>>> rules-users mailing list
>>>>>>>> rules-users at lists.jboss.org
>>>>>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> rules-users mailing list
>>>>>>> rules-users at lists.jboss.org
>>>>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>>>
>>>>>>
>>>>>>
>>>>>
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>>>>
>>>>
>>>>
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>>
>
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-- 
Edgardo Ibañez O.



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