Changeset 12395 for branches/HiveStatistics/sources/HeuristicLab.Problems.Instances.VehicleRouting/3.4/SolomonFormat/SolomonFormatInstanceProvider.cs

Timestamp:

05/20/15 16:41:14 (10 years ago)

Author:

dglaser

Message:

#2388 merged trunk into hive statistics branch

Location:

branches/HiveStatistics/sources

Files:

• . (modified) (1 prop)
• HeuristicLab.Problems.Instances.VehicleRouting/3.4/SolomonFormat/SolomonFormatInstanceProvider.cs (modified) (4 diffs)

branches/HiveStatistics/sources/HeuristicLab.Problems.Instances.VehicleRouting/3.4/SolomonFormat/SolomonFormatInstanceProvider.cs

@@ -1 +1 @@
 #region License Information
 /* HeuristicLab
- * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
+ * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
  *
  * This file is part of HeuristicLab.
@@ -20 +20 @@
 #endregion
 
+using System;
+using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 
 namespace HeuristicLab.Problems.Instances.VehicleRouting {
-  public abstract class SolomonFormatInstanceProvider : VRPInstanceProvider {
-    protected override VRPData LoadData(Stream stream) {
+  public abstract class SolomonFormatInstanceProvider : VRPInstanceProvider<CVRPTWData> {
+    protected override CVRPTWData LoadData(Stream stream) {
       return LoadInstance(new SolomonParser(stream));
     }
@@ -31 +34 @@
       get { return true; }
     }
-    public override VRPData ImportData(string path) {
+    public override CVRPTWData ImportData(string path) {
       return LoadInstance(new SolomonParser(path));
     }
@@ -54 +57 @@
       return instance;
     }
+
+    protected override void LoadSolution(Stream stream, CVRPTWData instance) {
+      using (var reader = new StreamReader(stream)) {
+        string instanceName = ExtractValue(reader.ReadLine());
+        string authors = ExtractValue(reader.ReadLine());
+        string date = ExtractValue(reader.ReadLine());
+        string reference = ExtractValue(reader.ReadLine());
+        reader.ReadLine(); // Solution
+
+        var routesQuery =
+          from line in reader.ReadAllLines()
+          where !string.IsNullOrEmpty(line)
+          let tokens = ExtractValue(line).Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)
+          let stops = tokens.Select(int.Parse).Select(s => s - 1)
+          select stops;
+
+        var routes = routesQuery.Select(s => s.ToArray()).ToArray();
+
+        instance.BestKnownTour = routes;
+      }
+    }
+
+    private static string ExtractValue(string line) {
+      return line.Split(new[] { ':' }, StringSplitOptions.RemoveEmptyEntries).Last().Trim();
+    }
   }
 }