[rules-dev] KnowledgeAgent: Unable to find implementation for BusinessRuleProvider

[drhookson]

hi.all, 

I working with drools-5.1.1 and just wanted to change my working
knowledgeagent version, which pulls the package binary from the guvnor, to
use local stored BRL files. 

As for what I assumed that the KnowledgeAgent is aware of the different
resource types, I simply exchanged in the change-set.xml the resource
location and type specification accordingly to the BRL ones, like the
following: 
                        String ruleFile =
"file://Projects/Workspace/myProject/src/rules/DeadManSwitch.brl"; 
 	 String xml = ""; 
                        xml += "<change-set
xmlns='http://drools.org/drools-5.0/change-set'"; 
                        xml += "   
xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'"; 
                        xml += "   
xs:schemaLocation='http://drools.org/drools-5.0/change-set
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd'
>"; 
                        xml += "    <add>"; 
                        xml += "         <resource source='" + ruleFile + "'
type='BRL'/>"; 
                        xml += "    </add>"; 
                        xml += "</change-set>"; 

All the other things like setting up the KnowledgeAgent, applying the change
set, a.s.o remained the same, but when executing the program I get the
following exception reported: 

SEVERE: Run exception: java.lang.RuntimeException:
org.drools.compiler.DroolsParserException:
org.drools.CheckedDroolsException: Unable to find implementation for
BusinessRuleProvider 
Stack trace: 
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:544) 
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) 
org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:637) 
org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:889) 
org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:704) 
org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:584) 
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:185) 
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:168) 

Any idea what am I missing here? 

thx 
-hugo

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