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CepQueryTest.java
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CepQueryTest.java
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package org.drools.compiler.integrationtests;
import java.util.concurrent.TimeUnit;
import org.drools.compiler.CommonTestMethodBase;
import org.drools.core.time.SessionPseudoClock;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.kie.api.KieServices;
import org.kie.api.builder.KieFileSystem;
import org.kie.api.builder.model.KieBaseModel;
import org.kie.api.builder.model.KieModuleModel;
import org.kie.api.conf.EventProcessingOption;
import org.kie.api.runtime.KieSession;
import org.kie.api.runtime.conf.ClockTypeOption;
import org.kie.api.runtime.rule.EntryPoint;
import org.kie.api.runtime.rule.QueryResults;
import org.kie.internal.io.ResourceFactory;
/**
* Tests queries using temporal operators on events from two entry points.
*/
public class CepQueryTest extends CommonTestMethodBase {
private KieSession ksession;
private SessionPseudoClock clock;
private EntryPoint firstEntryPoint, secondEntryPoint;
@Before
public void prepare() {
final String drl = "package org.drools.compiler.integrationtests\n" +
"import org.drools.compiler.integrationtests.CepQueryTest.TestEvent;\n" +
"declare TestEvent\n" +
" @role( event )\n" +
"end\n" +
"query EventsAfterZeroToNineSeconds\n" +
" $event : TestEvent() from entry-point FirstStream\n" +
" $result : TestEvent( this after [0s, 9s] $event) from entry-point SecondStream\n" +
"end\n";
final KieServices ks = KieServices.Factory.get();
KieFileSystem kfs = ks.newKieFileSystem();
KieModuleModel module = ks.newKieModuleModel();
KieBaseModel baseModel = module.newKieBaseModel("defaultKBase")
.setDefault(true)
.setEventProcessingMode(EventProcessingOption.STREAM);
baseModel.newKieSessionModel("defaultKSession")
.setDefault(true)
.setClockType(ClockTypeOption.get("pseudo"));
kfs.writeKModuleXML(module.toXML());
kfs.write(ResourceFactory.newByteArrayResource( drl.getBytes() ).setTargetPath("defaultPkg/query.drl") );
assertTrue(ks.newKieBuilder(kfs).buildAll().getResults().getMessages().isEmpty());
ksession = ks.newKieContainer(ks.getRepository().getDefaultReleaseId()).newKieSession();
clock = ksession.getSessionClock();
firstEntryPoint = ksession.getEntryPoint("FirstStream");
secondEntryPoint = ksession.getEntryPoint("SecondStream");
}
@After
public void cleanup() {
if (ksession != null) {
ksession.dispose();
}
}
private void eventsInitialization() {
secondEntryPoint.insert(new TestEvent("minusOne"));
clock.advanceTime(5, TimeUnit.SECONDS);
firstEntryPoint.insert(new TestEvent("zero"));
secondEntryPoint.insert(new TestEvent("one"));
// clock.advanceTime(10, TimeUnit.SECONDS);
//
// secondEntryPoint.insert(new TestEvent("two"));
// clock.advanceTime(10, TimeUnit.SECONDS);
//
// secondEntryPoint.insert(new TestEvent("three"));
// ksession.fireAllRules();
}
/**
* Tests query using temporal operator 'after' on events from two entry points.
*/
@Test//(timeout=10000)
public void testQueryWithAfter() {
this.eventsInitialization();
QueryResults results = ksession.getQueryResults("EventsAfterZeroToNineSeconds");
assertEquals("Unexpected query result length", 1, results.size());
assertEquals("Unexpected query result content",
"one", ((TestEvent) results.iterator().next().get("$result")).getName());
}
/**
* Simple event used in the test.
*/
public static class TestEvent {
private final String name;
public TestEvent(final String name) {
this.name = name;
}
public String getName() {
return this.name;
}
@Override
public String toString() {
return "TestEvent["+name+"]";
}
}
}