package org.drools.event.rule;
/*
* Copyright 2005 JBoss Inc
*
* 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.
*/
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import org.drools.Cheese;
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseFactory;
import org.drools.RuleBase;
import org.drools.RuleBaseFactory;
import org.drools.runtime.KnowledgeRuntime;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.rule.FactHandle;
import org.drools.WorkingMemory;
import junit.framework.TestCase;
/**
* @author <a href="mailto:simon@redhillconsulting.com.au">Simon Harris</a>
*/
public class WorkingMemoryEventSupportTest extends TestCase {
public void testAddRuleRuntimeEventListener() {
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
final List wmList = new ArrayList();
final WorkingMemoryEventListener eventListener = new WorkingMemoryEventListener() {
public void objectInserted(ObjectInsertedEvent event) {
wmList.add( event );
}
public void objectUpdated(ObjectUpdatedEvent event) {
wmList.add( event );
}
public void objectRetracted(ObjectRetractedEvent event) {
wmList.add( event );
}
};
ksession.addEventListener( eventListener );
final Cheese stilton = new Cheese( "stilton",
15 );
final Cheese cheddar = new Cheese( "cheddar",
17 );
final FactHandle stiltonHandle = ksession.insert( stilton );
final ObjectInsertedEvent oae = (ObjectInsertedEvent) wmList.get( 0 );
assertSame( stiltonHandle,
oae.getFactHandle() );
ksession.update( stiltonHandle,
stilton );
final ObjectUpdatedEvent ome = (ObjectUpdatedEvent) wmList.get( 1 );
assertSame( stiltonHandle,
ome.getFactHandle() );
ksession.retract( stiltonHandle );
final ObjectRetractedEvent ore = (ObjectRetractedEvent) wmList.get( 2 );
assertSame( stiltonHandle,
ore.getFactHandle() );
ksession.insert( cheddar );
}
public void testRemoveRuleRuntimeEventListener() {
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
final List wmList = new ArrayList();
final WorkingMemoryEventListener eventListener = new WorkingMemoryEventListener() {
public void objectInserted(ObjectInsertedEvent event) {
wmList.add( event );
}
public void objectUpdated(ObjectUpdatedEvent event) {
wmList.add( event );
}
public void objectRetracted(ObjectRetractedEvent event) {
wmList.add( event );
}
};
ksession.addEventListener( eventListener );
ksession.removeEventListener( eventListener );
final Cheese stilton = new Cheese( "stilton",
15 );
final Cheese cheddar = new Cheese( "cheddar",
17 );
final FactHandle stiltonHandle = ksession.insert( stilton );
assertTrue( wmList.isEmpty() );
ksession.update( stiltonHandle,
stilton );
assertTrue( wmList.isEmpty() );
ksession.retract( stiltonHandle );
assertTrue( wmList.isEmpty() );
ksession.insert( cheddar );
assertTrue( wmList.isEmpty() );
}
}