[rules-users] Stateful Session giving major issues

starfish15 pooja.ghosh at accenture.com
Sat Jan 26 02:53:07 EST 2013


Hello,

I am using Drools 5.2. I am not sure why not able to find the result here. 
I am supposed to get the value from the Action in this rule as shown below.
But its never found. Kindly assist me with what is it that i have'nt
included.

First the rules

//generated from Decision Table
import boa.poc.java.SSI;
import boa.poc.java.CMPG_REF;
import boa.poc.java.Result_Rules;
// rule values at C12, header at C7
rule "Access sql table_12"
when
ssi : SSI(CD == "ES", EOC_IN == "Y", IN == "N")
cmpgRef : CMPG_REF(CMPG == 123, 01_NO == "12")
result : Result_Rules(dummyCond == "result")
then
result.setDummyAction("Access I");
end

Second the code
		
			@SuppressWarnings("rawtypes")
			public HashMap<String, List> retrievRuleResult(HashMap hm) {
				try {
					// load up the knowledge base
					KnowledgeBase kbase = readKnowledgeBase();

					SSI ssi = (SSI)hm.get("pa_cycle_ssi");
					CMPG_REF cmpRef = (CMPG_REF)hm.get("pa_cmpg_ref");
					Result_Rules rulesResult = (Result_Rules)hm.get("dummyCond");
					
					StatefulKnowledgeSession ksession =
kbase.newStatefulKnowledgeSession();
					ksession.insert(ssi);
					ksession.insert(cmpRef);
					ksession.insert(rulesResult);
					ksession.fireAllRules();
					ksession.dispose();			
					
					System.out.println("Result 1 : "+rulesResult.getDummyAction());
														
			return ;
			}


public KnowledgeBase readKnowledgeBase() throws Exception {

				KnowledgeBuilder kbuilder =
KnowledgeBuilderFactory.newKnowledgeBuilder();		
				 	
			
kbuilder.add(ResourceFactory.newClassPathResource("poc/rules/rules.pkg"),
ResourceType.PKG);
				KnowledgeBuilderErrors errors = kbuilder.getErrors();
				if (errors.size() > 0) {
					for (KnowledgeBuilderError error: errors) {
						System.err.println(error);
					}
					throw new IllegalArgumentException("Could not parse knowledge.");
				}
				KnowledgeBase kbase = kbuilder.newKnowledgeBase();
													
				return kbase;
			}



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