#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 <http://www.gnu.org/licenses/>.
 */
#endregion

using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.Encodings.IntegerVectorEncoding;
using HeuristicLab.Operators;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.Problems.GeneralizedQuadraticAssignment {
  [Item("GQAPSolutionCreator", "Base class for solution creators of the Generalized Quadratic Assignment Problem.")]
  [StorableClass]
  public abstract class GQAPSolutionCreator : SingleSuccessorOperator, IDemandsAwareGQAPOperator, ICapacitiesAwareGQAPOperator, IGQAPSolutionCreator {

    #region Parameter Descriptions
    public static readonly string AssignmentDescription = "The vector that encodes the assignment.";
    #endregion

    public ILookupParameter<IntegerVector> AssignmentParameter {
      get { return (ILookupParameter<IntegerVector>)Parameters["Assignment"]; }
    }
    public ILookupParameter<DoubleArray> DemandsParameter {
      get { return (ILookupParameter<DoubleArray>)Parameters["Demands"]; }
    }
    public ILookupParameter<DoubleArray> CapacitiesParameter {
      get { return (ILookupParameter<DoubleArray>)Parameters["Capacities"]; }
    }

    [StorableConstructor]
    protected GQAPSolutionCreator(bool deserializing) : base(deserializing) { }
    protected GQAPSolutionCreator(GQAPSolutionCreator original, Cloner cloner)
      : base(original, cloner) { }
    public GQAPSolutionCreator()
      : base() {
      Parameters.Add(new LookupParameter<IntegerVector>("Assignment", AssignmentDescription));
      Parameters.Add(new LookupParameter<DoubleArray>("Demands", GeneralizedQuadraticAssignmentProblem.DemandsDescription));
      Parameters.Add(new LookupParameter<DoubleArray>("Capacities", GeneralizedQuadraticAssignmentProblem.CapacitiesDescription));
    }

    public override IOperation Apply() {
      AssignmentParameter.ActualValue = CreateSolution(DemandsParameter.ActualValue, CapacitiesParameter.ActualValue);
      return base.Apply();
    }

    protected abstract IntegerVector CreateSolution(DoubleArray demands, DoubleArray capacities);
  }
}