source: branches/3026_IntegrationIntoSymSpace/HeuristicLab.JsonInterface.App/Runner.cs @ 18183

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using HeuristicLab.Core;
using HeuristicLab.Optimization;
using Newtonsoft.Json.Linq;

namespace HeuristicLab.JsonInterface.App {
  internal static class Runner {
    internal static void Run(string template, string config, string outputFile) {
      InstantiatorResult instantiatorResult = JsonTemplateInstantiator.Instantiate(template, config);
      IOptimizer optimizer = instantiatorResult.Optimizer;

      optimizer.Runs.Clear();
      if (optimizer is EngineAlgorithm e)
        e.Engine = new ParallelEngine.ParallelEngine();

      Task task = optimizer.StartAsync();
      while (!task.IsCompleted) {
        WriteResultsToFile(outputFile, optimizer, instantiatorResult.RunCollectionModifiers);
        Thread.Sleep(100);
      }

      WriteResultsToFile(outputFile, optimizer, instantiatorResult.RunCollectionModifiers);
    }

    private static void WriteResultsToFile(string file, IOptimizer optimizer, IEnumerable<IRunCollectionModifier> runCollectionModifiers) {
      if (optimizer.Runs.Count > 0) 
        File.WriteAllText(file, FetchResults(optimizer, runCollectionModifiers));
    }

    private static string FetchResults(IOptimizer optimizer, IEnumerable<IRunCollectionModifier> runCollectionModifiers) {
      JArray arr = new JArray();
      
      foreach (var modifier in runCollectionModifiers)
        modifier.Modify(new List<IRun>(optimizer.Runs.ToArray()));
      
      foreach (var run in optimizer.Runs) {
        JObject obj = new JObject();
        arr.Add(obj);
        obj.Add("Run", JToken.FromObject(run.ToString()));
        foreach (var result in run.Results)
          obj.Add(result.Key, result.Value.ToString());
      }
      return SingleLineArrayJsonWriter.Serialize(arr);
    }
  }
}