[rules-users] Drools 5.0 concat string in matches of regular expression

[Lukas Svoboda]

I'm not sure whether mvel version matters for compilation of drools, anyway
I'm using mvel2.jar distributed in drools5.0.1-binaries.

I'm more suspicious whether it's related to compiler since it requires
eclipse jdt (I'm using org.eclipse.jdt.core_3.4.2.v_883_R34x.jar) unlike
drools 4.0.7 I was using originally. 

Do I have to setup somehow KnowledgeBuilder by creating custom
KnowledgeBuilderConfiguration.

I assume default is java dialect with Eclipse compiler. Is it right?

Lukas



Edson Tirelli-4 wrote:
> 
>    What version of MVEL are you using?
> 
>    Edson
> 
> 2010/1/13 Lukas Svoboda <lukasvoboda at googlemail.com>
> 
>>
>> I'm getting some generic not-anything-saying error message:
>>     [java] Unable to determine the used declarations.
>>     [java] unexpected symbol ' ' : [Rule name='BL: Block mail domain']
>>
>> When I remove that concatenated matches expression (".*@" +
>> blacklistItemValue + ".*") it compiles.
>>
>> Complete rule looks like:
>> rule "BL: Block mail domain" ruleflow-group "black-list"
>> salience 1001
>>        when
>>                not RejectionResult();
>>
>>                customer : CustomerPartyDRL();
>>                blackList: BlacklistDRL();
>>
>>                onBlackList : ArrayList( size > 0 )
>>               from collect( BlacklistItemDRL( blacklistItemType matches
>> "MAIL_DOMAIN" &&
>> customer.currentContactInformation.partyEmailAddress.email
>> matches blacklistItemValue )
>>                             from blackList.getItems())
>>         then
>>                auditLogger.addDeclineRule( "BL: Block mail domain " +
>>
>>
>> customer.getCurrentContactInformation().getPartyEmailAddress().getEmailLowercase());
>>
>>                RejectionResult rejection = new OrderRejectionResult( );
>>                rejection.setMessage("BL: Block mail domain " +
>>
>>
>> customer.getCurrentContactInformation().getPartyEmailAddress().getEmailLowercase());
>>
>>                insert( rejection  );
>>
>> end
>>
>>
>> And fragment of the code I'm using to compile rule package is:
>>
>>                Reader testSource = new
>>
>> InputStreamReader(RuleCompiler.class.getResourceAsStream("/perthTestRule.drl"));
>>                Reader sourceFlow = new
>>
>> InputStreamReader(RuleCompiler.class.getResourceAsStream("/perthScoreCustomerFlow.rf"));
>>
>>                // add the package to a rulebase (deploy the rule
>> package).
>>                KnowledgeBase kbase =
>> KnowledgeBaseFactory.newKnowledgeBase();
>>                KnowledgeBuilder kbuilder =
>> KnowledgeBuilderFactory.newKnowledgeBuilder();
>>
>>               
>> kbuilder.add(ResourceFactory.newReaderResource(testSource),
>> ResourceType.DRL);
>>               
>> kbuilder.add(ResourceFactory.newReaderResource(sourceFlow),
>> ResourceType.DRF);
>>
>>                System.out.println(kbuilder.getErrors().toString());
>>
>>                Collection<KnowledgePackage> pkgs =
>> kbuilder.getKnowledgePackages();
>>
>>                try {
>>                        kbase.addKnowledgePackages(pkgs);
>>
>>                        StatefulKnowledgeSession ksession =
>> kbase.newStatefulKnowledgeSession();
>>
>>                        System.out.println("Knowladge session
>> initialized...");
>>                } catch (Exception e) {
>>                        e.printStackTrace();
>>                 }
>>
>>
>> Edson Tirelli-4 wrote:
>> >
>> >    It should work... what error do you see?
>> >
>> >    Edson
>> >
>> > 2010/1/13 Lukas Svoboda <lukasvoboda at googlemail.com>
>> >
>> >>
>> >> How can I get drools 5.0.1 compiled if I have regular expression
>> matches
>> >> part
>> >> concat from static text + dynamic string?
>> >>
>> >> See example:
>> >>                onBlackList : ArrayList( size > 0 )
>> >>               from collect( BlacklistItemDRL( blacklistItemType
>> matches
>> >> "MAIL_DOMAIN" &&
>> >> customer.currentContactInformation.partyEmailAddress.email
>> >> matches (".*@" + blacklistItemValue + ".*") )
>> >>                             from blackList.getItems())
>> >>
>> >>
>> >> Problem is when I'm trying to do email matches (".*@" +
>> >> blacklistItemValue
>> >> +
>> >> ".*"), which worked in drools 4.0.7 but can't be compiled now in 5.0.1
>> >>
>> >> Is there any way how to use in matches part of reg exp dynamic
>> property
>> >> value plus static string?
>> >>
>> >> Thanks,
>> >> Lukas
>> >> --
>> >> View this message in context:
>> >>
>> http://n3.nabble.com/Drools-5-0-concat-string-in-matches-of-regular-expression-tp119197p119197.html
>> >> Sent from the Drools - User mailing list archive at Nabble.com.
>> >> _______________________________________________
>> >> rules-users mailing list
>> >> rules-users at lists.jboss.org
>> >> https://lists.jboss.org/mailman/listinfo/rules-users
>> >>
>> >
>> >
>> >
>> > --
>> >  Edson Tirelli
>> >  JBoss Drools Core Development
>> >  JBoss by Red Hat @ www.jboss.com
>> >
>> > _______________________________________________
>> > rules-users mailing list
>> > rules-users at lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>> >
>>
>> --
>> View this message in context:
>> http://n3.nabble.com/Drools-5-0-concat-string-in-matches-of-regular-expression-tp119197p119353.html
>> Sent from the Drools - User mailing list archive at Nabble.com.
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>>
> 
> 
> 
> -- 
>  Edson Tirelli
>  JBoss Drools Core Development
>  JBoss by Red Hat @ www.jboss.com
> 
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
> 
> 

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