/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* 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.optaplanner.examples.cloudbalancing.optional.realtime;
import org.optaplanner.core.impl.score.director.ScoreDirector;
import org.optaplanner.core.impl.solver.ProblemFactChange;
import org.optaplanner.examples.cloudbalancing.domain.CloudBalance;
import org.optaplanner.examples.cloudbalancing.domain.CloudProcess;
public class DeleteProcessProblemFactChange implements ProblemFactChange<CloudBalance> {
private final CloudProcess process;
public DeleteProcessProblemFactChange(CloudProcess process) {
this.process = process;
}
@Override
public void doChange(ScoreDirector<CloudBalance> scoreDirector) {
CloudBalance cloudBalance = scoreDirector.getWorkingSolution();
// A SolutionCloner clones planning entity lists (such as processList), so no need to clone the processList here
CloudProcess workingProcess = scoreDirector.lookUpWorkingObject(process);
if (workingProcess == null) {
// The process has already been deleted (the UI asked to changed the same process twice), so do nothing
return;
}
// Remove the planning entity itself
scoreDirector.beforeEntityRemoved(workingProcess);
cloudBalance.getProcessList().remove(workingProcess);
scoreDirector.afterEntityRemoved(workingProcess);
scoreDirector.triggerVariableListeners();
}
}