/*
* Copyright 2007 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.
* You may obtain a copy of the License at
*
* 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.
*
* Created on Dec 14, 2007
*/
package org.drools.compiler.integrationtests;
import org.drools.compiler.CommonTestMethodBase;
import org.drools.compiler.StockTick;
import org.drools.compiler.StockTickInterface;
import org.drools.compiler.compiler.DroolsParserException;
import org.drools.core.time.impl.PseudoClockScheduler;
import org.junit.Test;
import org.kie.api.KieBaseConfiguration;
import org.kie.api.conf.EventProcessingOption;
import org.kie.api.event.rule.AfterMatchFiredEvent;
import org.kie.api.event.rule.AgendaEventListener;
import org.kie.api.runtime.KieSessionConfiguration;
import org.kie.api.runtime.conf.ClockTypeOption;
import org.kie.api.time.SessionClock;
import org.kie.internal.KnowledgeBase;
import org.kie.internal.KnowledgeBaseFactory;
import org.kie.internal.runtime.StatefulKnowledgeSession;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
/**
* Tests related to the pseudo session clock
*/
public class PseudoClockEventsTest extends CommonTestMethodBase {
private static final String evalFirePseudoClockDeclaration =
"package org.drools.compiler.integrationtests\n" +
"import " + StockTick.class.getCanonicalName() + "\n" +
"\n" +
"declare StockTick\n" +
" @role( event )\n" +
//" @expires( 1m )\n" +
"end\n\n";
private static final String evalFirePseudoClockRuleA =
"rule A\n" +
"when\n" +
" $a: StockTick( $priceA: price )\n" +
" $b: StockTick( $priceA < price )\n" +
"then \n" +
" System.out.println(\"Rule A fired by thread \" + Thread.currentThread().getName() + \": \" + $a + \", \" + $b);\n" +
"end\n" +
"";
private static final String evalFirePseudoClockRuleB =
"rule B\n" +
"when\n" +
" $a: StockTick()\n" +
" not( StockTick( this after[1,10s] $a ) )\n" +
"then \n" +
" System.out.println(\"Rule B fired by thread \" + Thread.currentThread().getName());\n" +
"end\n" +
"";
int evalFirePseudoClockStockCount = 5;
@Test(timeout = 6000)
public void testEvenFirePseudoClockRuleA() throws Exception {
AgendaEventListener ael = mock(AgendaEventListener.class);
processStocks(evalFirePseudoClockStockCount, ael,
evalFirePseudoClockDeclaration + evalFirePseudoClockRuleA);
verify(ael,
times(evalFirePseudoClockStockCount * (evalFirePseudoClockStockCount - 1) / 2)).afterMatchFired(
any(AfterMatchFiredEvent.class));
}
@Test(timeout = 6000)
public void testEvenFirePseudoClockRuleB() throws Exception {
AgendaEventListener ael = mock(AgendaEventListener.class);
processStocks(evalFirePseudoClockStockCount, ael,
evalFirePseudoClockDeclaration + evalFirePseudoClockRuleB);
verify(ael,
times(evalFirePseudoClockStockCount - 1)).afterMatchFired(
any(AfterMatchFiredEvent.class));
}
@Test(timeout = 60000)
public void testEvenFirePseudoClockRulesAB() throws Exception {
AgendaEventListener ael = mock(AgendaEventListener.class);
processStocks(evalFirePseudoClockStockCount, ael,
evalFirePseudoClockDeclaration + evalFirePseudoClockRuleA + evalFirePseudoClockRuleB);
final int expectedActivationCount = evalFirePseudoClockStockCount * (evalFirePseudoClockStockCount - 1) / 2
+ evalFirePseudoClockStockCount - 1;
verify(ael,
times(expectedActivationCount)).afterMatchFired(
any(AfterMatchFiredEvent.class));
}
private int processStocks(int stockCount, AgendaEventListener agendaEventListener, String drlContentString)
throws DroolsParserException, IOException, Exception {
KieBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
kconf.setOption(EventProcessingOption.STREAM);
KnowledgeBase kbase = loadKnowledgeBaseFromString(kconf, drlContentString);
KieSessionConfiguration ksessionConfig = KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
ksessionConfig.setOption(ClockTypeOption.get("pseudo"));
ksessionConfig.setProperty("keep.reference", "true");
final StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession(ksessionConfig,
null);
ksession.addEventListener(agendaEventListener);
PseudoClockScheduler clock = (PseudoClockScheduler) ksession.<SessionClock>getSessionClock();
Runnable fireUntilHaltRunnable = new Runnable() {
public void run() {
ksession.fireUntilHalt();
}
};
Thread fireUntilHaltThread = new Thread(fireUntilHaltRunnable, "Engine's thread");
fireUntilHaltThread.start();
Thread.currentThread().setName("Feeding thread");
for (int stIndex = 1; stIndex <= stockCount; stIndex++) {
clock.advanceTime(20, TimeUnit.SECONDS);
Thread.sleep( 100 );
final StockTickInterface st = new StockTick(stIndex,
"RHT",
100 * stIndex,
100 * stIndex);
ksession.insert(st);
Thread.sleep( 100 );
}
Thread.sleep(100);
ksession.halt();
fireUntilHaltThread.join(5000);
return stockCount;
}
}