source: branches/1888_OaaS/HeuristicLab.Services.Optimization.Controller/General/AlgorithmHelper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using HeuristicLab.Services.Optimization.ControllerService.Model;

namespace HeuristicLab.Services.Optimization.ControllerService.General {
  public class AlgorithmHelper {
    public static bool HasToBeUpdated(Algorithm algo) {
      if (algo.Parameters != null)
        foreach (var param in algo.Parameters.Items) {
          if (RequiresUpdate(param)) return true;
        }

      if (algo.Problem != null && algo.Problem.Parameters != null) 
        foreach (var param in algo.Problem.Parameters.Items) {
          if (RequiresUpdate(param)) return true;
        }

      return false;
    }

    private static bool RequiresUpdate(Parameter param) {
      switch (param.Type) {
        case ParameterType.Type:
          return ((TypeValue)param.Value).Options == null;
        default:
          return false;
      }
    }

    public static void Update(Algorithm algo, OptimizationScenario scenario) {
      if (algo.Parameters != null)
        for (var i=0; i < algo.Parameters.Items.Count; i++) {
          if (RequiresUpdate(algo.Parameters.Items[i])) {
            var otherParam = (from p in scenario.FirstAlgorithm.Parameters.Items where p.Value.Name == algo.Parameters.Items[i].Value.Name select p).FirstOrDefault();
            UpdateParameter(algo.Parameters.Items[i], otherParam);
          }
        } 

      if (algo.Problem != null && algo.Problem.Parameters != null)
        for (var i = 0; i < algo.Problem.Parameters.Items.Count; i++) {
          if (RequiresUpdate(algo.Problem.Parameters.Items[i])) {
            var otherParam = (from p in scenario.FirstAlgorithm.Problem.Parameters.Items where p.Value.Name == algo.Problem.Parameters.Items[i].Value.Name select p).FirstOrDefault();
            UpdateParameter(algo.Problem.Parameters.Items[i], otherParam);
          }
        }
    }

    private static void UpdateParameter(Parameter param, Parameter param2) {
      switch (param.Type) {
        case ParameterType.Type:
          ((TypeValue)param.Value).Options = ((TypeValue)param2.Value).Options;
          break;
      }
    }
  }
}