[rules-users] JSR-94 Throws Exception for KnowledgePackage

[Carlsen, Len]

Hi,

 

I am upgrading our application from Drools 4.0.7 to 5.0.0.SNAPSHOT
(using JDK 1.6)

I have noticed that RuleServiceProvider.createRuleExecutionSet requires
a org.drools.rule.Package instead of a KnowledgePackage. If I use a
KnowledgePackage the following exception is thrown:

 

RuleException(javax.rules.admin.RuleExecutionSetCreateException:
Incoming AST object must be an org.drools.rule.Package.  Was class
org.drools.definitions.impl.KnowledgePackageImp), root cause(null)

      at
org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRul
eExecutionSet(LocalRuleExecutionSetProviderImpl.java:211)

 

To get rid of the exception I have to cast
org.drools.definitions.impl.KnowledgePackageImp  to KnowledgePackage.

Maybe
org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRul
eExecutionSet should also look for a KnowledgePackage?

 

Am I doing something wrong? 

Below is a code snippet of what I am doing:

 

        KnowledgePackage binPkg = (KnowledgePackage)
brmsRepository.loadRuleSet(uuid).getCompiledRuleSetObject();

        // Drools JSR-94 requires a org.drools.rule.Package

        org.drools.rule.Package pkg =
((org.drools.definitions.impl.KnowledgePackageImp) binPkg).pkg;

 

        String RULE_SERVICE_PROVIDER = "http://drools.org/";

        String RULE_URI = "MyPackage";

 

 
RuleServiceProviderManager.registerRuleServiceProvider(RULE_SERVICE_PROV
IDER, RuleServiceProviderImpl.class);

        RuleServiceProvider ruleServiceProvider =
RuleServiceProviderManager.getRuleServiceProvider(RULE_SERVICE_PROVIDER)
;

        RuleAdministrator ruleAdministrator =
ruleServiceProvider.getRuleAdministrator();

        LocalRuleExecutionSetProvider ruleSetProvider =
ruleAdministrator.getLocalRuleExecutionSetProvider(null);

 

Here an exception is thrown for a KnowledgePackage

        // Drools JSR-94 requires a org.drools.rule.Package - Exception
thrown if it is a KnowledgePackage

        RuleExecutionSet ruleExecutionSet =
ruleSetProvider.createRuleExecutionSet(pkg, null);

        

        Etc...

 

Thanks,

 

Len

 

 

Len Carlsen

Student Systems
The University of British Columbia



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