/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.compiler.integrationtests;
import java.util.concurrent.TimeUnit;
import org.kie.api.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;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class QueryCepTest {
private KieSession ksession;
private SessionPseudoClock clock;
private EntryPoint firstEntryPoint, secondEntryPoint;
@Before
public void prepare() {
String drl = "package org.drools.compiler.integrationtests\n" +
"import " + TestEvent.class.getCanonicalName() + "\n" +
"declare TestEvent\n" +
" @role( event )\n" +
"end\n" +
"query EventsFromStream\n" +
" $event : TestEvent() from entry-point FirstStream\n" +
"end\n" +
"query ZeroToNineteenSeconds\n" +
" $event : TestEvent() from entry-point FirstStream\n" +
" $result : TestEvent ( this after [0s, 19s] $event) from entry-point SecondStream\n" +
"end\n";
final KieServices ks = KieServices.Factory.get();
KieFileSystem kfs = ks.newKieFileSystem();
KieModuleModel kmodule = ks.newKieModuleModel();
KieBaseModel baseModel = kmodule.newKieBaseModel("defaultKBase")
.setDefault(true)
.setEventProcessingMode(EventProcessingOption.STREAM);
baseModel.newKieSessionModel("defaultKSession")
.setDefault(true)
.setClockType(ClockTypeOption.get("pseudo"));
kfs.writeKModuleXML(kmodule.toXML());
kfs.write( ResourceFactory.newByteArrayResource(drl.getBytes())
.setTargetPath("org/drools/compiler/integrationtests/queries.drl") );
assertTrue(ks.newKieBuilder(kfs).buildAll().getResults().getMessages().isEmpty());
ksession = ks.newKieContainer(ks.getRepository().getDefaultReleaseId()).newKieSession();
firstEntryPoint = ksession.getEntryPoint("FirstStream");
secondEntryPoint = ksession.getEntryPoint("SecondStream");
clock = ksession.getSessionClock();
}
@Test
public void noResultTest() {
QueryResults results = ksession.getQueryResults("EventsFromStream");
assertEquals(0, results.size());
}
@Test
public void withResultTest() {
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(5, TimeUnit.SECONDS);
secondEntryPoint.insert(new TestEvent("three"));
QueryResults results = ksession.getQueryResults("ZeroToNineteenSeconds");
assertEquals(1, results.size());
}
@Test
public void withNoResultTest() {
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"));
// the following expires event "zero" and "one", causing the query to no longer match
clock.advanceTime(10, TimeUnit.SECONDS);
secondEntryPoint.insert(new TestEvent("three"));
QueryResults results = ksession.getQueryResults("ZeroToNineteenSeconds");
assertEquals(0, results.size());
}
@After
public void cleanup() {
if (ksession != null) {
ksession.dispose();
}
}
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 + "]";
}
}
}