#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2019 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.Operators;
using HeuristicLab.Optimization;
using HeuristicLab.Parameters;
using HEAL.Attic;

namespace HeuristicLab.Analysis {
  [Item("ParetoFrontAnalyzer", "Analyzer for multiobjective problems that collects and presents the current Pareto front as double matrix as well as the solution scopes that lie on the current front.")]
  [StorableType("972CEB70-3D0D-4602-97B1-B02DC7FBD9E8")]
  public abstract class ParetoFrontAnalyzer : SingleSuccessorOperator, IAnalyzer, IMultiObjectiveOperator {
    public virtual bool EnabledByDefault {
      get { return true; }
    }

    public IScopeTreeLookupParameter<DoubleArray> QualitiesParameter {
      get { return (IScopeTreeLookupParameter<DoubleArray>)Parameters["Qualities"]; }
    }
    public ILookupParameter<ResultCollection> ResultsParameter {
      get { return (ILookupParameter<ResultCollection>)Parameters["Results"]; }
    }

    [StorableConstructor]
    protected ParetoFrontAnalyzer(StorableConstructorFlag _) : base(_) { }
    protected ParetoFrontAnalyzer(ParetoFrontAnalyzer original, Cloner cloner) : base(original, cloner) { }
    public ParetoFrontAnalyzer() {
      Parameters.Add(new ScopeTreeLookupParameter<DoubleArray>("Qualities", "The vector of qualities of each solution."));
      Parameters.Add(new LookupParameter<ResultCollection>("Results", "The result collection to store the front to."));
    }

    public override IOperation Apply() {
      ItemArray<DoubleArray> qualities = QualitiesParameter.ActualValue;
      ResultCollection results = ResultsParameter.ActualValue;
      Analyze(qualities, results);
      return base.Apply();
    }

    protected abstract void Analyze(ItemArray<DoubleArray> qualities, ResultCollection results);
  }
}