source: branches/HeuristicLab.BinPacking/old files/PackingSequence/Encoding.cs @ 14853

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Encodings.PermutationEncoding;
using HeuristicLab.Optimization;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using HeuristicLab.PluginInfrastructure;
using HeuristicLab.Problems.BinPacking;

namespace HeuristicLab.Encodings.PackingEncoding.PackingSequence {
  [StorableClass]
  public class Encoding : HeuristicLab.Optimization.Encoding<IPackingSolutionCreator> {
    [StorableConstructor]
    private Encoding(bool deserializing) : base(deserializing) { }
    public Encoding()
      : base("PackingSequence") {
      SolutionCreator = new PackingSequenceRandomCreator();
      RegisterParameterEvents();
      DiscoverOperators();
    }

    private Encoding(Encoding original, Cloner cloner)
      : base(original, cloner) {
      RegisterParameterEvents();
    }


    public override IDeepCloneable Clone(Cloner cloner) {
      return new Encoding(this, cloner);
    }

    public override void ConfigureOperators(IEnumerable<IOperator> operators) {
      // TODO
    }

    #region Operator discovery
    private static readonly IEnumerable<Type> encodingSpecificOperatorTypes;
    static Encoding() {
      encodingSpecificOperatorTypes = new List<Type>
      {
        typeof(IPackingSequenceOperator),         // TODO move (also namespace)
      };
    }
    private void DiscoverOperators() {
      var assembly = typeof(IPackingSequenceCreator).Assembly;
      var discoveredTypes = ApplicationManager.Manager.GetTypes(encodingSpecificOperatorTypes, assembly, true, false, false);
      var operators = discoveredTypes.Select(t => (IOperator)Activator.CreateInstance(t));
      var newOperators = operators.Except(Operators, new TypeEqualityComparer<IOperator>()).ToList();

      ConfigureOperators(newOperators);
      foreach (var @operator in newOperators)
        AddOperator(@operator);
    }
    #endregion

    private void RegisterParameterEvents() {
      // nothing to do
    }


  }

  public static class IndividualExtensionMethods {
    public static Permutation PackingSequence(this Individual individual) {
      var encoding = individual.GetEncoding<Encoding>();
      return individual.PackingSequence(encoding.Name);
    }

    public static Permutation PackingSequence(this Individual individual, string name) {
      return (Permutation)individual[name];
    }
  }
}