org.drools.planner.examples.travelingtournament.solver.simple.move.DayChangeMove Maven / Gradle / Ivy
/*
* 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.simple.move;
import java.util.Collection;
import java.util.Collections;
import org.apache.commons.lang.ObjectUtils;
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 DayChangeMove implements Move, TabuPropertyEnabled {
private Match match;
private Day toDay;
public DayChangeMove(Match match, Day toDay) {
this.match = match;
this.toDay = toDay;
}
public boolean isMoveDoable(WorkingMemory workingMemory) {
return !ObjectUtils.equals(match.getDay(), toDay);
}
public Move createUndoMove(WorkingMemory workingMemory) {
return new DayChangeMove(match, match.getDay());
}
public void doMove(WorkingMemory workingMemory) {
FactHandle matchHandle = workingMemory.getFactHandle(match);
match.setDay(toDay);
workingMemory.update(matchHandle, match);
}
public Collection getTabuProperties() {
return Collections.singletonList(match);
}
public boolean equals(Object o) {
if (this == o) {
return true;
} else if (o instanceof DayChangeMove) {
DayChangeMove other = (DayChangeMove) o;
return new EqualsBuilder()
.append(match, other.match)
.append(toDay, other.toDay)
.isEquals();
} else {
return false;
}
}
public int hashCode() {
return new HashCodeBuilder()
.append(match)
.append(toDay)
.toHashCode();
}
public String toString() {
return match + " => " + toDay;
}
}