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Torma Kristóf
2021-04-06 00:45:28 +02:00
commit 17fabc368e
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39
src/org/cloudbus/cloudsim/core/predicates/Predicate.java Normal file
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/*
* Title: CloudSim Toolkit
* Description: CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
* Licence: GPL - http://www.gnu.org/copyleft/gpl.html
*
* Copyright (c) 2009-2012, The University of Melbourne, Australia
*/
package org.cloudbus.cloudsim.core.predicates;
import org.cloudbus.cloudsim.core.SimEvent;
/**
* Predicates are used to select events from the deferred queue. This class is abstract and must be
* extended when writing a new predicate. Some standard predicates are provided.<br>
* The idea of simulation predicates was copied from SimJava 2.
*
* @author Marcos Dias de Assuncao
* @since CloudSim Toolkit 1.0
* @see PredicateType
* @see PredicateFrom
* @see PredicateAny
* @see PredicateNone
* @see Simulation
*/
public abstract class Predicate {
/**
* The match function which must be overridden when writing a new predicate. The function is
* called with each event in the deferred queue as its parameter when a
* <code>Simulation.select()</code> call is made by the user.
*
* @param event The event to test for a match.
* @return The function should return <code>true</code> if the event matches and should be
* selected, or <code>false</code> if it does not match the predicate.
*/
public abstract boolean match(SimEvent event);
}

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src/org/cloudbus/cloudsim/core/predicates/PredicateAny.java Normal file
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/*
* Title: CloudSim Toolkit
* Description: CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
* Licence: GPL - http://www.gnu.org/copyleft/gpl.html
*
* Copyright (c) 2009-2012, The University of Melbourne, Australia
*/
package org.cloudbus.cloudsim.core.predicates;
import org.cloudbus.cloudsim.core.SimEvent;
/**
* A predicate which will match any event on the deferred event queue. There is a publicly
* accessible instance of this predicate in <code>Simulation</code>, called
* <code>Simulation.SIM_ANY</code>, so no new instances need to be created. <br>
* The idea of simulation predicates was copied from SimJava 2.
*
* @author Marcos Dias de Assuncao
* @since CloudSim Toolkit 1.0
* @see Predicate
* @see Simulation
*/
public class PredicateAny extends Predicate {
/**
* The match function called by <code>Simulation</code>, not used directly by the user.
*
* @param ev the ev
* @return true, if match
*/
@Override
public boolean match(SimEvent ev) {
return true;
}
}

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src/org/cloudbus/cloudsim/core/predicates/PredicateFrom.java Normal file
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/*
* Title: CloudSim Toolkit
* Description: CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
* Licence: GPL - http://www.gnu.org/copyleft/gpl.html
*
* Copyright (c) 2009-2012, The University of Melbourne, Australia
*/
package org.cloudbus.cloudsim.core.predicates;
import org.cloudbus.cloudsim.core.SimEvent;
/**
* A predicate which selects events from specific entities.<br>
* The idea of simulation predicates was copied from SimJava 2.
*
* @author Marcos Dias de Assuncao
* @since CloudSim Toolkit 1.0
* @see PredicateNotFrom
* @see Predicate
*/
public class PredicateFrom extends Predicate {
/** The ids. */
private final int[] ids;
/**
* Constructor used to select events that were sent by a specific entity.
*
* @param sourceId the id number of the source entity
*/
public PredicateFrom(int sourceId) {
ids = new int[] { sourceId };
}
/**
* Constructor used to select events that were sent by any entity from a given set.
*
* @param sourceIds the set of id numbers of the source entities
*/
public PredicateFrom(int[] sourceIds) {
ids = sourceIds.clone();
}
/**
* The match function called by <code>Simulation</code>, not used directly by the user.
*
* @param ev the event to check
* @return <code>true</code> if the event matches the predicate, <code>false</code> otherwise
*/
@Override
public boolean match(SimEvent ev) {
int src = ev.getSource();
for (int id : ids) {
if (src == id) {
return true;
}
}
return false;
}
}

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src/org/cloudbus/cloudsim/core/predicates/PredicateNone.java Normal file
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/*
* Title: CloudSim Toolkit
* Description: CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
* Licence: GPL - http://www.gnu.org/copyleft/gpl.html
*
* Copyright (c) 2009-2012, The University of Melbourne, Australia
*/
package org.cloudbus.cloudsim.core.predicates;
import org.cloudbus.cloudsim.core.SimEvent;
/**
* A predicate which will <b>not</b> match any event on the deferred event queue. There is a
* publicly accessible instance of this predicate in the {@link Simulation} class, called
* {@link Simulation#SIM_NONE}, so the user does not need to create any new instances. The idea of
* simulation predicates was copied from SimJava 2.
*
* @author Marcos Dias de Assuncao
* @since CloudSim Toolkit 1.0
* @see Predicate
* @see Simulation
*/
public class PredicateNone extends Predicate {
/**
* The match function called by {@link Simulation}, not used directly by the user.
*
* @param ev the event to check
* @return <code>true</code> if the event matches the predicate, <code>false</code> otherwise
*/
@Override
public boolean match(SimEvent ev) {
return false;
}
}

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src/org/cloudbus/cloudsim/core/predicates/PredicateNotFrom.java Normal file
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/*
* Title: CloudSim Toolkit
* Description: CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
* Licence: GPL - http://www.gnu.org/copyleft/gpl.html
*
* Copyright (c) 2009-2012, The University of Melbourne, Australia
*/
package org.cloudbus.cloudsim.core.predicates;
import org.cloudbus.cloudsim.core.SimEvent;
/**
* A predicate which selects events that have not been sent by specific entities.
*
* @author Marcos Dias de Assuncao
* @since CloudSim Toolkit 1.0
* @see PredicateFrom
* @see Predicate
*/
public class PredicateNotFrom extends Predicate {
/** The ids. */
private final int[] ids;
/**
* Constructor used to select events that were not sent by a specific entity.
*
* @param sourceId the id number of the source entity
*/
public PredicateNotFrom(int sourceId) {
ids = new int[] { sourceId };
}
/**
* Constructor used to select events that were not sent by any entity from a given set.
*
* @param sourceIds the set of id numbers of the source entities
*/
public PredicateNotFrom(int[] sourceIds) {
ids = sourceIds.clone();
}
/**
* The match function called by {@link Simulation}, not used directly by the user.
*
* @param ev the event to check
* @return <code>true</code> if the event matches the predicate, <code>false</code> otherwise
*/
@Override
public boolean match(SimEvent ev) {
int src = ev.getSource();
for (int id : ids) {
if (src == id) {
return false;
}
}
return true;
}
}

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src/org/cloudbus/cloudsim/core/predicates/PredicateNotType.java Normal file
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/*
* Title: CloudSim Toolkit
* Description: CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
* Licence: GPL - http://www.gnu.org/copyleft/gpl.html
*
* Copyright (c) 2009-2012, The University of Melbourne, Australia
*/
package org.cloudbus.cloudsim.core.predicates;
import org.cloudbus.cloudsim.core.SimEvent;
/**
* A predicate to select events that don't match specific tags.
*
* @author Marcos Dias de Assuncao
* @since CloudSim Toolkit 1.0
* @see PredicateType
* @see Predicate
*/
public class PredicateNotType extends Predicate {
/** The tags. */
private final int[] tags;
/**
* Constructor used to select events whose tags do not match a given tag.
*
* @param tag An event tag value
*/
public PredicateNotType(int tag) {
tags = new int[] { tag };
}
/**
* Constructor used to select events whose tag values do not match any of the given tags.
*
* @param tags the list of tags
*/
public PredicateNotType(int[] tags) {
this.tags = tags.clone();
}
/**
* The match function called by {@link Simulation}, not used directly by the user.
*
* @param ev the ev
* @return true, if match
*/
@Override
public boolean match(SimEvent ev) {
int tag = ev.getTag();
for (int tag2 : tags) {
if (tag == tag2) {
return false;
}
}
return true;
}
}

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src/org/cloudbus/cloudsim/core/predicates/PredicateType.java Normal file
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/*
* Title: CloudSim Toolkit
* Description: CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
* Licence: GPL - http://www.gnu.org/copyleft/gpl.html
*
* Copyright (c) 2009-2012, The University of Melbourne, Australia
*/
package org.cloudbus.cloudsim.core.predicates;
import org.cloudbus.cloudsim.core.SimEvent;
/**
* A predicate to select events with specific tags.
*
* @author Marcos Dias de Assuncao
* @since CloudSim Toolkit 1.0
* @see PredicateNotType
* @see Predicate
*/
public class PredicateType extends Predicate {
/** The tags. */
private final int[] tags;
/**
* Constructor used to select events with the tag value <code>t1</code>.
*
* @param t1 an event tag value
*/
public PredicateType(int t1) {
tags = new int[] { t1 };
}
/**
* Constructor used to select events with a tag value equal to any of the specified tags.
*
* @param tags the list of tags
*/
public PredicateType(int[] tags) {
this.tags = tags.clone();
}
/**
* The match function called by <code>Sim_system</code>, not used directly by the user.
*
* @param ev the ev
* @return true, if match
*/
@Override
public boolean match(SimEvent ev) {
int tag = ev.getTag();
for (int tag2 : tags) {
if (tag == tag2) {
return true;
}
}
return false;
}
}