/*
* 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.
*/
package org.drools.event;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import org.junit.Test;
import org.kie.KnowledgeBase;
import org.kie.KnowledgeBaseFactory;
import org.kie.event.rule.ObjectInsertedEvent;
import org.kie.event.rule.ObjectDeletedEvent;
import org.kie.event.rule.ObjectUpdatedEvent;
import org.kie.event.rule.WorkingMemoryEventListener;
import org.kie.runtime.StatefulKnowledgeSession;
import org.kie.runtime.rule.FactHandle;
import static org.junit.Assert.*;
import org.drools.Cheese;
public class WorkingMemoryEventSupportTest {
@Test
public void testIsSerializable() {
assertTrue( Serializable.class.isAssignableFrom( WorkingMemoryEventSupport.class ) );
}
@Test
public void testWorkingMemoryEventListener() {
final KnowledgeBase rb = KnowledgeBaseFactory.newKnowledgeBase();
final StatefulKnowledgeSession wm = rb.newStatefulKnowledgeSession();
final List wmList = new ArrayList();
final WorkingMemoryEventListener workingMemoryListener = new WorkingMemoryEventListener() {
public void objectInserted(ObjectInsertedEvent event) {
wmList.add( event );
}
public void objectUpdated(ObjectUpdatedEvent event) {
wmList.add( event );
}
public void objectDeleted(ObjectDeletedEvent event) {
wmList.add( event );
}
};
wm.addEventListener( workingMemoryListener );
assertEquals(1, wm.getWorkingMemoryEventListeners().size() );
final Cheese stilton = new Cheese( "stilton",
15 );
final Cheese cheddar = new Cheese( "cheddar",
17 );
final FactHandle stiltonHandle = wm.insert( stilton );
ObjectInsertedEvent oae = (ObjectInsertedEvent) wmList.get( 0 );
assertSame( stiltonHandle,
oae.getFactHandle() );
wm.update( stiltonHandle,
cheddar );
final ObjectUpdatedEvent ome = (ObjectUpdatedEvent) wmList.get( 1 );
assertSame( stiltonHandle,
ome.getFactHandle() );
assertEquals( cheddar, ome.getObject() );
assertEquals( stilton, ome.getOldObject() );
wm.retract( stiltonHandle );
final ObjectDeletedEvent ore = (ObjectDeletedEvent) wmList.get( 2 );
assertSame( stiltonHandle,
ore.getFactHandle() );
final FactHandle cheddarHandle = wm.insert( cheddar );
oae = (ObjectInsertedEvent) wmList.get( 3 );
assertSame( cheddarHandle,
oae.getFactHandle() );
}
}