/*
* Copyright 2011 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.core.constructionheuristic.greedyFit.selector;
import java.util.Iterator;
import java.util.List;
import org.apache.commons.collections.iterators.IteratorChain;
import org.drools.planner.core.constructionheuristic.greedyFit.scope.GreedyFitSolverPhaseScope;
import org.drools.planner.core.constructionheuristic.greedyFit.scope.GreedyFitStepScope;
import org.drools.planner.core.constructionheuristic.greedyFit.event.GreedySolverPhaseLifecycleListener;
import org.drools.planner.core.heuristic.selector.entity.PlanningEntitySelector;
/**
* Determines the order in which the planning entities are fit into the solution
*/
public class GreedyPlanningEntitySelector implements Iterable<Object>, GreedySolverPhaseLifecycleListener {
private List<PlanningEntitySelector> planningEntitySelectorList;
public void setPlanningEntitySelectorList(List<PlanningEntitySelector> planningEntitySelectorList) {
this.planningEntitySelectorList = planningEntitySelectorList;
}
public void phaseStarted(GreedyFitSolverPhaseScope greedyFitSolverPhaseScope) {
for (PlanningEntitySelector planningEntitySelector : planningEntitySelectorList) {
planningEntitySelector.phaseStarted(greedyFitSolverPhaseScope);
}
}
public void stepStarted(GreedyFitStepScope greedyFitStepScope) {
for (PlanningEntitySelector planningEntitySelector : planningEntitySelectorList) {
planningEntitySelector.stepStarted(greedyFitStepScope);
}
}
public void stepEnded(GreedyFitStepScope greedyFitStepScope) {
for (PlanningEntitySelector planningEntitySelector : planningEntitySelectorList) {
planningEntitySelector.stepEnded(greedyFitStepScope);
}
}
public void phaseEnded(GreedyFitSolverPhaseScope greedyFitSolverPhaseScope) {
for (PlanningEntitySelector planningEntitySelector : planningEntitySelectorList) {
planningEntitySelector.phaseEnded(greedyFitSolverPhaseScope);
}
}
public Iterator<Object> iterator() {
IteratorChain iteratorChain = new IteratorChain();
for (PlanningEntitySelector planningEntitySelector : planningEntitySelectorList) {
iteratorChain.addIterator(planningEntitySelector.iterator());
}
return iteratorChain;
}
}