package org.drools.reteoo;
/*
* $Id$
*
* Copyright 2001-2003 (C) The Werken Company. All Rights Reserved.
*
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided that the
* following conditions are met:
*
* 1. Redistributions of source code must retain copyright statements and
* notices. Redistributions must also contain a copy of this document.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* from this Software without prior written permission of The Werken Company.
* For written permission, please contact bob@werken.com.
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* 4. Products derived from this Software may not be called "drools" nor may
* "drools" appear in their names without prior written permission of The Werken
* Company. "drools" is a trademark of The Werken Company.
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* 5. Due credit should be given to The Werken Company. (http://werken.com/)
*
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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*/
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.drools.DroolsTestCase;
import org.drools.RuleBase;
import org.drools.WorkingMemory;
import org.drools.rule.FixedDuration;
import org.drools.rule.Rule;
import org.drools.spi.Activation;
import org.drools.spi.AsyncExceptionHandler;
import org.drools.spi.ConsequenceException;
import org.drools.spi.Duration;
import org.drools.spi.MockObjectType;
import org.drools.spi.PropagationContext;
import org.drools.spi.Tuple;
/**
* @author mproctor
*/
public class SchedulerTest extends DroolsTestCase
{
public void testScheduledActivation() throws Exception
{
RuleBase ruleBase = new RuleBaseImpl( new Rete() );
WorkingMemoryImpl workingMemory = (WorkingMemoryImpl) ruleBase.newWorkingMemory();
final Scheduler scheduler = Scheduler.getInstance();
final Rule rule = new Rule( "test-rule" );
final List data = new ArrayList();
// add consequence
rule.setConsequence( new org.drools.spi.Consequence()
{
public void invoke(Activation activation)
{
data.add( "tested" );
}
} );
/* 1/10th of a second */
Duration duration = new Duration()
{
public long getDuration(Tuple tuple)
{
return 100;
}
};
rule.setDuration( duration );
PropagationContext context = new PropagationContextImpl( PropagationContext.ASSERTION,
null,
null );
ReteTuple tuple = new ReteTuple( 0,
new FactHandleImpl( 1 ),
workingMemory );
assertEquals( 0,
data.size() );
Agenda agenda = workingMemory.getAgenda();
agenda.addToAgenda( tuple,
context,
rule );
// sleep for 2 seconds
Thread.sleep( 300 );
// now check for update
assertEquals( 1,
data.size() );
}
public void testDoLoopScheduledActivation() throws Exception
{
RuleBase ruleBase = new RuleBaseImpl( new Rete() );
final WorkingMemoryImpl workingMemory = (WorkingMemoryImpl) ruleBase.newWorkingMemory();
final Agenda agenda = workingMemory.getAgenda();
final Scheduler scheduler = Scheduler.getInstance();
final Rule rule = new Rule( "test-rule" );
final List data = new ArrayList();
/* 1/10th of a second */
Duration duration = new Duration()
{
public long getDuration(Tuple tuple)
{
return 100;
}
};
rule.setDuration( duration );
// add consequence
rule.setConsequence( new org.drools.spi.Consequence()
{
public void invoke(Activation activation)
{
/* on first invoke add another one to the agenda */
if ( data.size() < 3 )
{
PropagationContext context2 = new PropagationContextImpl( 0,
rule,
activation );
ReteTuple tuple2 = new ReteTuple( 0,
new FactHandleImpl( 2 ),
workingMemory );
agenda.addToAgenda( tuple2,
context2,
rule );
}
data.add( "tested" );
}
} );
PropagationContext context1 = new PropagationContextImpl( PropagationContext.ASSERTION,
null,
null );
ReteTuple tuple1 = new ReteTuple( 0,
new FactHandleImpl( 1 ),
workingMemory );
agenda.addToAgenda( tuple1,
context1,
rule );
final AgendaItem item = (AgendaItem) agenda.getScheduledItems().values().toArray()[0];
assertEquals( 0,
data.size() );
// Schedule is for 1 second
scheduler.scheduleAgendaItem( item,
workingMemory );
// sleep for 2 seconds
Thread.sleep( 500 );
// now check for update
assertEquals( 5,
data.size() );
}
public void testNoLoopScheduledActivation() throws Exception
{
RuleBase ruleBase = new RuleBaseImpl( new Rete() );
final WorkingMemoryImpl workingMemory = (WorkingMemoryImpl) ruleBase.newWorkingMemory();
final Agenda agenda = workingMemory.getAgenda();
final Scheduler scheduler = Scheduler.getInstance();
final Rule rule = new Rule( "test-rule" );
final List data = new ArrayList();
/* 1/10th of a second */
Duration duration = new Duration()
{
public long getDuration(Tuple tuple)
{
return 100;
}
};
rule.setDuration( duration );
rule.setNoLoop( true );
// add consequence
rule.setConsequence( new org.drools.spi.Consequence()
{
public void invoke(Activation activation)
{
/* on first invoke add another one to the agenda */
if ( data.size() < 5 )
{
PropagationContext context2 = new PropagationContextImpl( 0,
rule,
activation );
ReteTuple tuple2 = new ReteTuple( 0,
new FactHandleImpl( 2 ),
workingMemory );
agenda.addToAgenda( tuple2,
context2,
rule );
}
data.add( "tested" );
}
} );
PropagationContext context1 = new PropagationContextImpl( PropagationContext.ASSERTION,
null,
null );
ReteTuple tuple1 = new ReteTuple( 0,
new FactHandleImpl( 1 ),
workingMemory );
agenda.addToAgenda( tuple1,
context1,
rule );
final AgendaItem item = (AgendaItem) agenda.getScheduledItems().values().toArray()[0];
assertEquals( 0,
data.size() );
// Schedule is for 1 second
scheduler.scheduleAgendaItem( item,
workingMemory );
// sleep for 2 seconds
Thread.sleep( 500 );
// now check for update
assertEquals( 2,
data.size() );
}
public void testExceptionHandler() throws Exception
{
RuleBase ruleBase = new RuleBaseImpl( new Rete() );
WorkingMemoryImpl workingMemory = (WorkingMemoryImpl) ruleBase.newWorkingMemory();
Agenda agenda = workingMemory.getAgenda();
final Scheduler scheduler = Scheduler.getInstance();
final Rule rule = new Rule( "test-rule" );
// add consequence
rule.setConsequence( new org.drools.spi.Consequence()
{
public void invoke(Activation activation) throws ConsequenceException
{
throw new ConsequenceException( "not enough cheese",
rule );
}
} );
/* 1/10th of a second */
Duration duration = new Duration()
{
public long getDuration(Tuple tuple)
{
return 100;
}
};
rule.setDuration( duration );
final List data = new ArrayList();
PropagationContext context = new PropagationContextImpl( PropagationContext.ASSERTION,
null,
null );
ReteTuple tuple = new ReteTuple( 0,
new FactHandleImpl( 1 ),
workingMemory );
assertEquals( 0,
data.size() );
AsyncExceptionHandler handler = new AsyncExceptionHandler()
{
public void handleException(WorkingMemory workingMemory,
ConsequenceException exception)
{
data.add( "tested" );
}
};
workingMemory.setAsyncExceptionHandler( handler );
assertLength( 0,
data );
agenda.addToAgenda( tuple,
context,
rule );
// sleep for 2 seconds
Thread.sleep( 300 );
// now check for update
assertLength( 1,
data );
}
}