[rules-users] OptionalDataException while running sample mortagage example
HI,
I had downloaded the drools 5.1 examples which is present in
http://www.jboss.org/drools/downloads.html url
and trying to run drools-examples-brms\ mortgage-example by following all
the steps listed in the how-to document But as RuleAgent is depricated I
changed it to KnowledgeAgent and used ChangeSet.xml to provide the URL and
authentication details
When I started running the application(FinalTest.java) I was getting the
followign error:
java.lang.RuntimeException: KnowledgeAgent exception while trying to
deserialize KnowledgeDefinitionsPackage
at
org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:664)
at
org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:889)
at
org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:704)
at
org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:584)
at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:185)
at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:168)
at FinalTest.main(FinalTest.java:25)
Caused by: java.io.OptionalDataException
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at
org.drools.rule.JavaDialectRuntimeData.readExternal(JavaDialectRuntimeData.java:167)
The code used is as follows:
FinalTest.java:
/**
*
*/
import org.drools.KnowledgeBase;
import org.drools.agent.KnowledgeAgent;
import org.drools.agent.KnowledgeAgentFactory;
import org.drools.builder.ResourceType;
import org.drools.definition.type.FactType;
import org.drools.io.ResourceFactory;
import org.drools.runtime.StatelessKnowledgeSession;
/**
* @author aditya.madhav.k
*
*/
public class FinalTest {
/**
* @param args
*/
public static void main(String[] args) throws InstantiationException,
IllegalAccessException{
// TODO Auto-generated method stub
KnowledgeAgent ka = KnowledgeAgentFactory.newKnowledgeAgent("MyAgent");
ka.applyChangeSet(ResourceFactory.newClassPathResource("changeset.xml"));
KnowledgeBase kb = ka.getKnowledgeBase();
FactType appType = kb.getFactType("mortgages",
"LoanApplication");
FactType incomeType = kb.getFactType("mortgages",
"IncomeSource");
Object application = appType.newInstance();
Object income = incomeType.newInstance();
appType.set(application, "amount", 25000);
appType.set(application, "deposit", 1500);
appType.set(application, "lengthYears", 20);
incomeType.set(income, "type", "Job");
incomeType.set(income, "amount", 65000);
StatelessKnowledgeSession ks = kb.newStatelessKnowledgeSession();
ks.execute( new Object[] {application, income} );
}
}
and changeset.xml code is:
<?xml version="1.0" encoding="UTF-8" ?>
-
-
If anyone knows a solution for this kindly share the same
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