#region License Information /* HeuristicLab * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using System; using HeuristicLab.Common; using HeuristicLab.Core; using HeuristicLab.Encodings.ScheduleEncoding; using HeuristicLab.Encodings.ScheduleEncoding.PermutationWithRepetition; using HeuristicLab.Optimization; using HeuristicLab.Parameters; using HeuristicLab.Persistence.Default.CompositeSerializers.Storable; namespace HeuristicLab.Problems.Scheduling { [Item("PWRDecoder", "An item used to convert a PWR-individual into a generalized schedule.")] [StorableClass] public class PWRDecoder : ScheduleDecoder, IStochasticOperator, IJSSPOperator { public ILookupParameter RandomParameter { get { return (LookupParameter)Parameters["Random"]; } } public ILookupParameter> JobDataParameter { get { return (LookupParameter>)Parameters["JobData"]; } } [StorableConstructor] protected PWRDecoder(bool deserializing) : base(deserializing) { } protected PWRDecoder(PWRDecoder original, Cloner cloner) : base(original, cloner) { } public PWRDecoder() : base() { Parameters.Add(new LookupParameter("Random", "The pseudo random number generator which should be used for stochastic manipulation operators.")); Parameters.Add(new LookupParameter>("JobData", "Job data taken from the JSSP - Instance.")); ScheduleEncodingParameter.ActualName = "PermutationWithRepetition"; } public override IDeepCloneable Clone(Cloner cloner) { return new PWRDecoder(this, cloner); } public override Schedule CreateScheduleFromEncoding(IScheduleEncoding encoding) { var solution = encoding as PWREncoding; if (solution == null) throw new InvalidOperationException("Encoding is not of type PWREncoding"); var jobs = (ItemList)JobDataParameter.ActualValue.Clone(); var resultingSchedule = new Schedule(jobs[0].Tasks.Count); foreach (int jobNr in solution.PermutationWithRepetition) { int i = 0; while (jobs[jobNr].Tasks[i].IsScheduled) i++; Task currentTask = jobs[jobNr].Tasks[i]; double startTime = GTAlgorithmUtils.ComputeEarliestStartTime(currentTask, resultingSchedule); currentTask.IsScheduled = true; resultingSchedule.ScheduleTask(currentTask.ResourceNr, startTime, currentTask.Duration, currentTask.JobNr); } return resultingSchedule; } } }