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KieSessionRulesIncrementalUpdateDifferentDrlTest.java
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KieSessionRulesIncrementalUpdateDifferentDrlTest.java
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package org.jboss.ddoyle.drools.demo;
import static org.jboss.ddoyle.drools.demo.KieTestUtils.createKieJar;
import static org.jboss.ddoyle.drools.demo.KieTestUtils.insertAndAdvance;
import static org.jboss.ddoyle.drools.demo.KieTestUtils.logRulesInKieBase;
import java.util.List;
import org.drools.compiler.CommonTestMethodBase;
import org.drools.compiler.kie.builder.impl.InternalKieModule;
import org.jboss.ddoyle.drools.demo.listener.RulesFiredAgendaEventListener;
import org.jboss.ddoyle.drools.demo.model.v1.Event;
import org.jboss.ddoyle.drools.demo.model.v1.SimpleEvent;
import org.junit.Test;
import org.kie.api.KieServices;
import org.kie.api.builder.ReleaseId;
import org.kie.api.runtime.KieContainer;
import org.kie.api.runtime.KieSession;
/**
* Tests use-cases where the DRL file is renamed and/or replaced. Drools will mark all rules in renamed and/or replaced DRL files as new
* rules, and will thus (re)fire these rules for all facts/events in WorkingMemory, including the ones inserted before the
* {@link KieSession} update.
*
* @author <a href="mailto:duncan.doyle@redhat.com">Duncan Doyle</a>
*/
public class KieSessionRulesIncrementalUpdateDifferentDrlTest extends CommonTestMethodBase {
/**
* Tests incremental KieBase and KieSession update where the same DRL is reloaded (without any changes). Expect that unchanged rules
* will NOT refire for events that were already in WM before the {@link KieSession} update.
*
* @throws Exception
*/
@Test
public void testRulesInSameDrl() throws Exception {
KieServices kieServices = KieServices.Factory.get();
final ReleaseId releaseId = kieServices.newReleaseId("org.kie", "test-rules-same-drl", "1.0.0");
// Create and deploy the first KJar.
InternalKieModule kJar = createKieJar(kieServices, releaseId,
kieServices.getResources().newClassPathResource("originalRules/rules.drl"));
kieServices.getRepository().addKieModule(kJar);
KieContainer kieContainer = kieServices.newKieContainer(releaseId);
KieSession kieSession = kieContainer.newKieSession();
try {
logRulesInKieBase(kieSession.getKieBase());
RulesFiredAgendaEventListener rulesFiredListener = new RulesFiredAgendaEventListener();
kieSession.addEventListener(rulesFiredListener);
List<? extends Event> firstEvents = TestEventsFactory.getFirstSimpleEvents();
for (Event nextEvent : firstEvents) {
insertAndAdvance(kieSession, nextEvent);
kieSession.fireAllRules();
}
assertEquals(2, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-One"));
assertEquals(0, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-Two"));
// Just adding the same rules.drl with the same name, so nothing should change and no additional rules should fire.
kJar = createKieJar(kieServices, releaseId, kieServices.getResources().newClassPathResource("originalRules/rules.drl"));
kieServices.getRepository().addKieModule(kJar);
kieContainer.updateToVersion(releaseId);
logRulesInKieBase(kieSession.getKieBase());
List<? extends Event> secondEvents = TestEventsFactory.getSecondSimpleEvents();
for (Event nextEvent : secondEvents) {
insertAndAdvance(kieSession, nextEvent);
kieSession.fireAllRules();
}
// Rules will only fire for new events.
assertEquals(3, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-One"));
assertEquals(1, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-Two"));
} finally {
kieSession.dispose();
}
}
/**
* Same test as above in {@link KieSessionRulesIncrementalUpdateDifferentDrlTest#testRulesInSameDrl()}, however, in this test we define
* the rules in a different DRL file, which marks all rules as new. This means that unchanged rules (in syntax), will still re-fire
* because they have been defined in a new DRL resource.
*
* @throws Exception
*/
@Test
public void testRulesInDifferentDrl() throws Exception {
KieServices kieServices = KieServices.Factory.get();
final ReleaseId releaseId = kieServices.newReleaseId("org.kie", "test-rules-different-drl", "1.0.0");
// Create and deploy the first KJar.
InternalKieModule kJar = createKieJar(kieServices, releaseId, new KieTestUtils.ResourceWrapper(kieServices.getResources()
.newClassPathResource("originalRules/rules.drl"), "originalRules.drl"));
kieServices.getRepository().addKieModule(kJar);
KieContainer kieContainer = kieServices.newKieContainer(releaseId);
KieSession kieSession = kieContainer.newKieSession();
try {
logRulesInKieBase(kieSession.getKieBase());
RulesFiredAgendaEventListener rulesFiredListener = new RulesFiredAgendaEventListener();
kieSession.addEventListener(rulesFiredListener);
List<SimpleEvent> firstEvents = TestEventsFactory.getFirstSimpleEvents();
for (SimpleEvent nextEvent : firstEvents) {
insertAndAdvance(kieSession, nextEvent);
kieSession.fireAllRules();
}
assertEquals(2, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-One"));
assertEquals(0, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-Two"));
kJar = createKieJar(kieServices, releaseId,
new KieTestUtils.ResourceWrapper(kieServices.getResources().newClassPathResource("originalRules/rules.drl"),
"newOriginalRules.drl"));
kieServices.getRepository().addKieModule(kJar);
kieContainer.updateToVersion(releaseId);
logRulesInKieBase(kieSession.getKieBase());
List<SimpleEvent> secondEvents = TestEventsFactory.getSecondSimpleEvents();
for (SimpleEvent nextEvent : secondEvents) {
insertAndAdvance(kieSession, nextEvent);
kieSession.fireAllRules();
}
/*
* Because the rules are defined in a different Resource, they are marked as new rules and will re-activate and refire for all
* events, also the ones that were already in the session before the KieBase/KieSession update.
*/
assertEquals(5, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-One"));
assertEquals(1, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-Two"));
} finally {
kieSession.dispose();
}
}
/**
* Same test as above in {@link KieSessionRulesIncrementalUpdateDifferentDrlTest#testRulesInSameDrl()}, however, in this test we define
* the rules in the same DRL file, but in a different path, which also marks all rules as new. This means that unchanged rules (in syntax), will still re-fire
* because they have been defined in a new DRL resource.
*
* @throws Exception
*/
@Test
public void testRulesInDifferentDrlPath() throws Exception {
KieServices kieServices = KieServices.Factory.get();
final ReleaseId releaseId = kieServices.newReleaseId("org.kie", "test-rules-different-drl", "1.0.0");
// Create and deploy the first KJar.
InternalKieModule kJar = createKieJar(kieServices, releaseId, new KieTestUtils.ResourceWrapper(kieServices.getResources()
.newClassPathResource("originalRules/rules.drl"), "firstPath/originalRules.drl"));
kieServices.getRepository().addKieModule(kJar);
KieContainer kieContainer = kieServices.newKieContainer(releaseId);
KieSession kieSession = kieContainer.newKieSession();
try {
logRulesInKieBase(kieSession.getKieBase());
RulesFiredAgendaEventListener rulesFiredListener = new RulesFiredAgendaEventListener();
kieSession.addEventListener(rulesFiredListener);
List<SimpleEvent> firstEvents = TestEventsFactory.getFirstSimpleEvents();
for (SimpleEvent nextEvent : firstEvents) {
insertAndAdvance(kieSession, nextEvent);
kieSession.fireAllRules();
}
assertEquals(2, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-One"));
assertEquals(0, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-Two"));
kJar = createKieJar(kieServices, releaseId,
new KieTestUtils.ResourceWrapper(kieServices.getResources().newClassPathResource("originalRules/rules.drl"),
"secondPath/originalRules.drl"));
kieServices.getRepository().addKieModule(kJar);
kieContainer.updateToVersion(releaseId);
logRulesInKieBase(kieSession.getKieBase());
List<SimpleEvent> secondEvents = TestEventsFactory.getSecondSimpleEvents();
for (SimpleEvent nextEvent : secondEvents) {
insertAndAdvance(kieSession, nextEvent);
kieSession.fireAllRules();
}
/*
* Because the rules are defined in a different Resource, they are marked as new rules and will re-activate and refire for all
* events, also the ones that were already in the session before the KieBase/KieSession update.
*/
assertEquals(5, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-One"));
assertEquals(1, rulesFiredListener.getNrOfRulesFired("org.jboss.ddoyle.drools.cep.sample" + "-" + "SimpleTestRule-Two"));
} finally {
kieSession.dispose();
}
}
}