[rules-users] ClassCastException using RuleAgent

[Vinicius Carvalho]

Hello there! I'm getting an classcastexception when I try to insert facts on
my RuleAgent:

Properties props = new Properties();
props.put(url, 
http://localhost:8080/drools-jbrms/org.drools.brms.JBRMS/package/com.acme.rules/latest
);
props.put(newInstance, true);
props.put(name,testagent);
RuleAgent agent = RuleAgent.newRuleAgent(props);
StatefulSession session = agent.getRuleBase().newStatefulSession();
session.insert(fact);

The error happens on the session.insert method. It also happens inside my
Seam application When I try to insert the facts on the working memory. My
drools package contains the model that I've extracted from my seam
application.
If I run it using a local drl file, it works fine. This problem only happens
with the rule agent

Could someone give me a hand on this?

Regards

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[rules-users] Using nested properties on guided editor

[Vinicius Carvalho]

Hello there! I'm trying Guvnor 5.0M1  (really nice :)) after reading :
http://blog.athico.com/2008/08/machine-learning-and-apache-mahout.html

I thought I could use nested objects in my rules. For instance, I have a
technical rule:

when
$t: Trabalho( situacao.dscSituacao == AGUARDANDO APROVAÇÃO )
Situacao( dscSituacao == EM APROVAÇÃO )
then
$t.setSituacaoValida(true);

But I can't find a way to bind this using guided editor. I add the fact
Trabalho, bind it to $t variable, but when selecting a restriction to a
field, it ends on situacao, not letting me navigate deeper on the graph. Is
this possible? Do I need a latest version on the SVN in order to use this?

Best Regards

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[rules-users] Rule Agent retrieving null rulebase

[Vinicius Carvalho]

Hello there! I've just started with the BRMS (what an awesome feature I
might add). So I've deployed a simple rule, packaged it and created a
snapshot.

The package is created and when I access the url provided by the BRMS it
tries to download the package, so I'm assuming it is published.

So I ran this code inside eclipse:

public static void main(String[] args) {
RuleAgent agent = RuleAgent.newRuleAgent(/MyRules.properties);

RuleBase rb = agent.getRuleBase();
StatefulSession session = rb.newStatefulSession();
Funcionario f = new Funcionario();
f.setSalario(1000.0);
Cargo c = new Cargo();
c.setDescricao(desenvolvedor);
f.setCargo(c);
session.insert(c);
Decision d = new Decision();
session.insert(d);
session.fireAllRules();
session.dispose();
}

-MyRules.properties
http://localhost:8080/drools-jbrms/org.drools.brms.JBRMS/package/com.synos.rules.credito/production-1
poll=10


It throws a nullpointer exception, as the agent.getRulebase() is returning a
null object.

What am I missing here?

Best regards


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