/*
* 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.nurserostering.solver.move.factory;
import java.util.ArrayList;
import java.util.List;
import java.util.ListIterator;
import org.drools.planner.core.move.Move;
import org.drools.planner.core.move.factory.CachedMoveFactory;
import org.drools.planner.core.solution.Solution;
import org.drools.planner.examples.nurserostering.domain.Assignment;
import org.drools.planner.examples.nurserostering.domain.NurseRoster;
import org.drools.planner.examples.nurserostering.solver.move.AssignmentSwitchMove;
public class AssignmentSwitchMoveFactory extends CachedMoveFactory {
public List<Move> createCachedMoveList(Solution solution) {
NurseRoster nurseRoster = (NurseRoster) solution;
List<Assignment> assignmentList = nurseRoster.getAssignmentList();
List<Move> moveList = new ArrayList<Move>();
for (ListIterator<Assignment> leftIt = assignmentList.listIterator(); leftIt.hasNext();) {
Assignment leftAssignment = leftIt.next();
for (ListIterator<Assignment> rightIt = assignmentList.listIterator(leftIt.nextIndex()); rightIt.hasNext();) {
Assignment rightAssignment = rightIt.next();
moveList.add(new AssignmentSwitchMove(leftAssignment, rightAssignment));
}
}
return moveList;
}
}