org.drools.planner.examples.travelingtournament.solver.smart.move.MatchSwapMove Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of drools-planner-examples Show documentation
Show all versions of drools-planner-examples Show documentation
Drools Planner optimizes automated planning by combining metaheuristic search algorithms with rule
engine powered score calculation. This is the drools-planner-examples module which contains examples on how to use
Drools Planner.
/*
* Copyright 2010 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.planner.examples.travelingtournament.solver.smart.move;
import java.util.Arrays;
import java.util.Collection;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.drools.WorkingMemory;
import org.drools.FactHandle;
import org.drools.planner.core.localsearch.decider.acceptor.tabu.TabuPropertyEnabled;
import org.drools.planner.core.move.Move;
import org.drools.planner.examples.travelingtournament.domain.Day;
import org.drools.planner.examples.travelingtournament.domain.Match;
public class MatchSwapMove implements Move, TabuPropertyEnabled {
private Match firstMatch;
private Match secondMatch;
public MatchSwapMove(Match firstMatch, Match secondMatch) {
this.firstMatch = firstMatch;
this.secondMatch = secondMatch;
}
public boolean isMoveDoable(WorkingMemory workingMemory) {
return true;
}
public Move createUndoMove(WorkingMemory workingMemory) {
return this;
}
public void doMove(WorkingMemory workingMemory) {
Day oldFirstMatchDay = firstMatch.getDay();
FactHandle firstMatchHandle = workingMemory.getFactHandle(firstMatch);
FactHandle secondMatchHandle = workingMemory.getFactHandle(secondMatch);
firstMatch.setDay(secondMatch.getDay());
secondMatch.setDay(oldFirstMatchDay);
workingMemory.update(firstMatchHandle, firstMatch);
workingMemory.update(secondMatchHandle, secondMatch);
}
public Collection getTabuProperties() {
return Arrays.asList(firstMatch, secondMatch);
}
public boolean equals(Object o) {
if (this == o) {
return true;
} else if (o instanceof MatchSwapMove) {
MatchSwapMove other = (MatchSwapMove) o;
return new EqualsBuilder()
.append(firstMatch, other.firstMatch)
.append(secondMatch, other.secondMatch)
.isEquals();
} else {
return false;
}
}
public int hashCode() {
return new HashCodeBuilder()
.append(firstMatch)
.append(secondMatch)
.toHashCode();
}
public String toString() {
return firstMatch + " <=> " + secondMatch;
}
}