source: trunk/sources/HeuristicLab.FixedOperators/3.2/FixedSGAMain.cs @ 2188

//#region License Information
///* HeuristicLab
// * Copyright (C) 2002-2008 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 System;
//using System.Collections.Generic;
//using System.Text;
//using System.Linq;
//using HeuristicLab.Core;
//using HeuristicLab.Data;
//using HeuristicLab.Permutation;
//using HeuristicLab.Evolutionary;
//using HeuristicLab.Operators;
//using HeuristicLab.Routing.TSP;
//using HeuristicLab.Logging;
//using System.Diagnostics;
//using HeuristicLab.Selection;
//using System.Threading;
//using System.IO;
//using HeuristicLab.Random;

//namespace HeuristicLab.FixedOperators {
//  class FixedSGAMain : FixedOperatorBase {
//    public override string Description {
//      get { return @"Implements the functionality of SGAMain with fixed control structures. Operators like selection, crossover, mutation and evaluation are delegated."; }
//    }

//    // Shared
//    protected Sorter sorter;

//    // CreateChildren
//    protected Counter counter;
//    protected IRandom random;
//    protected DoubleData probability;
//    protected ChildrenInitializer ci;
//    protected OperatorBase crossover;
//    protected OperatorBase mutator;
//    protected OperatorBase evaluator;
//    protected SubScopesRemover sr;
//    protected StochasticBranch sb;

//    protected OperatorBase selector;

//    // CreateReplacement
//    protected LeftSelector ls;
//    protected RightReducer rr;
//    protected RightSelector rs;
//    protected LeftReducer lr;
//    protected MergingReducer mr;

//    //long[] timesExecuteCreateChildren;
//    public FixedSGAMain()
//      : base() {
//      AddVariableInfo(new VariableInfo("Selector", "Selection strategy for SGA", typeof(OperatorBase), VariableKind.In));
//      AddVariableInfo(new VariableInfo("MaximumGenerations", "Maximum number of generations to create", typeof(IntData), VariableKind.In));
//      AddVariableInfo(new VariableInfo("Generations", "Number of processed generations", typeof(IntData), VariableKind.In | VariableKind.Out));

//      Name = "FixedSGAMain";                                                  

//      sorter = new Sorter();
//      sorter.GetVariableInfo("Descending").ActualName = "Maximization";
//      sorter.GetVariableInfo("Value").ActualName = "Quality";

//      InitCreateChildren();
//      InitReplacement();

//      sb = new StochasticBranch();
//      sb.GetVariableInfo("Probability").ActualName = "MutationRate";
//    }

//    private void InitReplacement() {
//      ls = new LeftSelector();
//      rr = new RightReducer();
//      rs = new RightSelector();
//      lr = new LeftReducer();
//      mr = new MergingReducer();

//      ls.GetVariableInfo("Selected").ActualName = "Elites";
//      rs.GetVariableInfo("Selected").ActualName = "Elites";
//    }

//    private void InitCreateChildren() {
//      // variables for create children
//      ci = new ChildrenInitializer();

//      // variables infos
//      AddVariableInfo(new VariableInfo("Random", "Pseudo random number generator", typeof(IRandom), VariableKind.In));
//      AddVariableInfo(new VariableInfo("MutationRate", "Probability to choose first branch", typeof(DoubleData), VariableKind.In));
//      AddVariableInfo(new VariableInfo("Crossover", "Crossover strategy for SGA", typeof(OperatorBase), VariableKind.In));
//      AddVariableInfo(new VariableInfo("Mutator", "Mutation strategy for SGA", typeof(OperatorBase), VariableKind.In));
//      AddVariableInfo(new VariableInfo("Evaluator", "Evaluation strategy for SGA", typeof(OperatorBase), VariableKind.In));

//      sr = new SubScopesRemover();
//      sr.GetVariableInfo("SubScopeIndex").Local = true;

//      counter = new Counter();
//      counter.GetVariableInfo("Value").ActualName = "EvaluatedSolutions";
//    }

//    public override IOperation Apply(IScope scope) {
//      base.Apply(scope);
//      Stopwatch swApply = new Stopwatch();
//      swApply.Start();

//      #region Initialization
//      QualityLogger ql = new QualityLogger();

//      BestAverageWorstQualityCalculator bawqc = new BestAverageWorstQualityCalculator();
//      DataCollector dc = new DataCollector();
//      ItemList<StringData> names = dc.GetVariable("VariableNames").GetValue<ItemList<StringData>>();
//      names.Add(new StringData("BestQuality"));
//      names.Add(new StringData("AverageQuality"));
//      names.Add(new StringData("WorstQuality"));

//      LinechartInjector lci = new LinechartInjector();
//      lci.GetVariableInfo("Linechart").ActualName = "Quality Linechart";
//      lci.GetVariable("NumberOfLines").GetValue<IntData>().Data = 3;

//      IntData maxGenerations = GetVariableValue<IntData>("MaximumGenerations", scope, true);
//      IntData nrOfGenerations = GetVariableValue<IntData>("Generations", scope, true);

//      IntData subscopeNr;
//      try {
//        subscopeNr = scope.GetVariableValue<IntData>("SubScopeNr", false);
//      }
//      catch (Exception) {
//        subscopeNr = new IntData(0);
//        scope.AddVariable(new Variable("SubScopeNr", subscopeNr));
//      }

//      ci = new ChildrenInitializer();


//      GetOperatorsFromScope(scope);

//      try {
//        sb.RemoveSubOperator(0);
//      }
//      catch (Exception) {
//      }
//      sb.AddSubOperator(mutator);


//      IScope s;
//      IScope s2;
//      #endregion
//      try {
//        for (; nrOfGenerations.Data < maxGenerations.Data; nrOfGenerations.Data++) {
//          Execute(selector, scope);

//          ////// Create Children //////
//          // ChildrenInitializer
//          s = scope.SubScopes[1];
//          Execute(ci, s);

//          SaveExecutionPointer();
//          // UniformSequentialSubScopesProcessor
//          for (; subscopeNr.Data < s.SubScopes.Count; subscopeNr.Data++) {
//            SetExecutionPointerToLastSaved();

//            s2 = s.SubScopes[subscopeNr.Data];
//            Execute(crossover, s2);
//            // Stochastic Branch
//            Execute(sb, s2);

//            // ganz böse!!!!!!!
//            // wird nach dem stochastic branch angehalten und später fortgesetzt,
//            // wird eine Zufallszahl erzeugt, die aber nicht verwendet wird.
//            // Dadurch kommt der GA auf ein anderes Endergebnis
//            // Lösung: Stochastic Branch Operator verwenden
//            //randomNumber = random.NextDouble();
//            //output.AppendLine(randomNumber.ToString());
//            //if (randomNumber < probability.Data)
//            //  Execute(mutator, s2);
//            //else
//            //  Execute(empty, s2);

//            Execute(evaluator, s2);
//            Execute(sr, s2);
//            Execute(counter, s2);
//          } // foreach

//          Execute(sorter, s);
//          ////// END Create Children //////

//          DoReplacement(scope);
//          Execute(ql, scope);
//          Execute(bawqc, scope);
//          Execute(dc, scope);
//          Execute(lci, scope);
//          subscopeNr.Data = 0;
//          ResetExecutionPointer();
//        } // for i

//        //TextWriter tw = new StreamWriter(DateTime.Now.ToFileTime() + ".txt");
//        //tw.Write(output.ToString());
//        //tw.Close();
//        //output = new StringBuilder();

//        swApply.Stop();
//        Console.WriteLine("SGAMain.Apply(): {0}", swApply.Elapsed);
//      } // try
//      catch (CancelException) {
//        Console.WriteLine("Micro engine aborted by cancel flag.");
//        return new AtomicOperation(this, scope);
//      }

//      return null;
//    } // Apply

//    /// <summary>
//    /// Fetch main operators like selector, crossover, mutator, ... from scope
//    /// and store them in instance variables.
//    /// </summary>
//    /// <param name="scope"></param>
//    protected void GetOperatorsFromScope(IScope scope) {
//      selector = (OperatorBase)GetVariableValue("Selector", scope, true);
//      crossover = (OperatorBase)GetVariableValue("Crossover", scope, true);
//      mutator = (OperatorBase)GetVariableValue("Mutator", scope, true);
//      evaluator = GetVariableValue<OperatorBase>("Evaluator", scope, true);

//      random = GetVariableValue<IRandom>("Random", scope, true);
//      probability = GetVariableValue<DoubleData>("MutationRate", scope, true);
//    }

//    /// <summary>
//    /// 
//    /// </summary>
//    /// <param name="scope"></param>
//    protected void CreateChildren(IScope scope) {
//      // ChildrenInitializer
//      Execute(ci, scope);
//      // UniformSequentialSubScopesProcessor
//      foreach (IScope s in scope.SubScopes) {
//        Execute(crossover, s);
//        // Stochastic Branch
//        if (random.NextDouble() < probability.Data)
//          Execute(mutator, s);
//        Execute(evaluator, s);
//        Execute(sr, s);
//        Execute(counter, s);
//      } // foreach

//      Execute(sorter, scope);
//    } // CreateChildren

//    protected void DoReplacement(IScope scope) {
//      //// SequentialSubScopesProcessor
//      Execute(ls, scope.SubScopes[0]);
//      Execute(rr, scope.SubScopes[0]);

//      Execute(rs, scope.SubScopes[1]);
//      Execute(lr, scope.SubScopes[1]);

//      Execute(mr, scope);
//      Execute(sorter, scope);
//    } // DoReplacement
//  } // class FixedSGAMain
//} // namespace HeuristicLab.FixedOperators


#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2008 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 System;
using System.Collections.Generic;
using System.Text;
using System.Linq;
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.Permutation;
using HeuristicLab.Evolutionary;
using HeuristicLab.Operators;
using HeuristicLab.Routing.TSP;
using HeuristicLab.Logging;
using System.Diagnostics;
using HeuristicLab.Selection;
using System.Threading;
using System.IO;
using HeuristicLab.Random;

namespace HeuristicLab.FixedOperators {
  class FixedSGAMain : FixedGAMainBase {
    public override string Description {
      get { return @"Implements the functionality of SGAMain with fixed control structures. Operators like selection, crossover, mutation and evaluation are delegated."; }
    }
    //long[] timesExecuteCreateChildren;
    public FixedSGAMain() {
      Name = "FixedSGAMain";
    }

    public override IOperation Apply(IScope scope) {
      base.Apply(scope);
      Stopwatch swApply = new Stopwatch();
      swApply.Start();
      
      IScope s;
      IScope s2;
      bool loopSkipped = true;

      tempExePointer = new int[10];
      tempPersExePointer = new int[10];
      
      try {
        for (; nrOfGenerations.Data < maxGenerations.Data; nrOfGenerations.Data++) {
          Execute(selector, scope);

          ////// Create Children //////
          // ChildrenInitializer
          s = scope.SubScopes[1];
          Execute(ci, s);

          SaveExecutionPointer(0);
          // UniformSequentialSubScopesProcessor
          for (; subscopeNr.Data < s.SubScopes.Count; subscopeNr.Data++) {
            SetExecutionPointerToLastSaved(0);

            s2 = s.SubScopes[subscopeNr.Data];
            Execute(crossover, s2);
            // Stochastic Branch
            Execute(sb, s2);

            // ganz böse!!!!!!!
            // wird nach dem stochastic branch angehalten und später fortgesetzt,
            // wird eine Zufallszahl erzeugt, die aber nicht verwendet wird.
            // Dadurch kommt der GA auf ein anderes Endergebnis
            // Lösung: Stochastic Branch Operator verwenden
            //randomNumber = random.NextDouble();
            //output.AppendLine(randomNumber.ToString());
            //if (randomNumber < probability.Data)
            //  Execute(mutator, s2);
            //else
            //  Execute(empty, s2);

            Execute(evaluator, s2);
            Execute(sr, s2);
            Execute(counter, s2);
            loopSkipped = false;
          } // foreach

          // if for loop skipped, we had to add skiped operations
          // to execution pointer.
          if (loopSkipped)
            executionPointer += 5;

          Execute(sorter, s);
          ////// END Create Children //////

          DoReplacement(scope);
          Execute(ql, scope);
          Execute(bawqc, scope);
          Execute(dc, scope);
          Execute(lci, scope);
          subscopeNr.Data = 0;
          ResetExecutionPointer();
        } // for i

        //TextWriter tw = new StreamWriter(DateTime.Now.ToFileTime() + ".txt");
        //tw.Write(output.ToString());
        //tw.Close();
        //output = new StringBuilder();

        swApply.Stop();
        Console.WriteLine("SGAMain.Apply(): {0}", swApply.Elapsed);
      } // try
      catch (CancelException) {
        return new AtomicOperation(this, scope);
      }

      return null;
    } // Apply
  } // class FixedSGAMain
} // namespace HeuristicLab.FixedOperators