1 | namespace HeuristicLab.BenchmarkSuite {
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2 | using System;
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3 | using System.Collections.Generic;
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4 | using System.IO;
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5 | using System.IO.Compression;
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6 | using System.Linq;
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7 | using System.Reflection;
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8 | using System.Text.RegularExpressions;
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9 |
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10 | using HeuristicLab.BenchmarkSuite.Problems;
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11 | using HeuristicLab.Common;
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12 | using HeuristicLab.Core;
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13 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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14 |
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15 | using Microsoft.VisualBasic.FileIO;
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16 |
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17 |
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18 | [StorableClass]
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19 | public abstract class BenchmarkSuiteDataDescriptor : NamedItem, IBenchmarkSuiteDataDescriptor {
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20 | private const string InstanceArchiveName = "HeuristicLab.BenchmarkSuite.Data.BenchmarkExamples.zip";
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21 | private const string ResourcePath = @".*\.Data\.";
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22 | private const string ExampleSeparator = ",";
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23 |
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24 | private const char ArrayValueSeparator = ' ';
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25 | private static readonly char[] ArraySymbolTrim = { '[', ']' };
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26 |
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27 | protected BenchmarkSuiteDataDescriptor() { }
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28 |
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29 | [StorableConstructor]
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30 | protected BenchmarkSuiteDataDescriptor(bool deserializing) : base(deserializing) { }
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31 |
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32 |
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33 | [Storable]
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34 | private Example[] examples;
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35 | public Example[] Examples
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36 | {
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37 | get
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38 | {
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39 | return this.examples ?? (this.examples = this.ParseData().ToArray());
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40 | }
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41 | }
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42 |
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43 | public new abstract string Name { get; }
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44 | protected abstract string FileName { get; }
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45 | public new abstract string Description { get; }
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46 | public abstract int OriginalTrainingCount { get; }
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47 | public abstract int OriginalTestCount { get; }
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48 | public abstract int BestResult { get; }
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49 | public abstract int WorstResult { get; }
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50 | public abstract int InputArgumentCount { get; }
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51 | public abstract int OutputArgumentCount { get; }
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52 | public int TotalArgumentCount { get { return InputArgumentCount + OutputArgumentCount; } }
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53 |
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54 | public abstract Example ParseExample(string[] input, string[] output);
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55 |
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56 | private IEnumerable<Example> ParseData() {
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57 | using (var file = this.GetType().Assembly.GetManifestResourceStream(InstanceArchiveName))
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58 | using (var archive = new ZipArchive(file, ZipArchiveMode.Read)) {
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59 | var entry = archive.Entries.SingleOrDefault(x => x.Name == FileName);
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60 |
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61 | using (var parser = new TextFieldParser(entry.Open())) {
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62 | parser.TextFieldType = FieldType.Delimited;
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63 | parser.SetDelimiters(ExampleSeparator);
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64 | parser.TrimWhiteSpace = false;
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65 |
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66 | //Processing rows
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67 | while (!parser.EndOfData) {
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68 | var fields = parser.ReadFields();
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69 |
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70 | if (fields.Length != TotalArgumentCount)
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71 | throw new InvalidDataException("Number of values do not fit");
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72 |
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73 | var input = fields.Take(InputArgumentCount).ToArray();
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74 | var output = fields.Skip(InputArgumentCount).ToArray();
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75 |
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76 | yield return ParseExample(input, output);
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77 | }
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78 | }
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79 | }
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80 | }
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81 |
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82 | protected static string GetResourceName(string fileName) {
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83 | return Assembly
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84 | .GetExecutingAssembly()
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85 | .GetManifestResourceNames()
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86 | .SingleOrDefault(x => Regex.Match(x, ResourcePath + fileName).Success);
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87 | }
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88 |
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89 | protected static double[] ConvertDoubles(string input) {
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90 | return ConvertMultiple(input, double.Parse);
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91 | }
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92 |
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93 | protected static double ConvertDouble(string input) {
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94 | return double.Parse(input);
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95 | }
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96 |
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97 | protected static long[] ConvertIntegers(string input) {
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98 | return ConvertMultiple(input, long.Parse);
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99 | }
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100 |
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101 | protected static long ConvertInteger(string input) {
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102 |
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103 | return string.IsNullOrEmpty(input) ? default(long) : long.Parse(input);
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104 | }
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105 |
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106 | protected static T[] ConvertMultiple<T>(string input, Func<string, T> converter) {
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107 | return input
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108 | .Trim(ArraySymbolTrim)
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109 | .Split(ArrayValueSeparator)
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110 | .Where(s => !string.IsNullOrWhiteSpace(s))
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111 | .Select(converter)
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112 | .ToArray();
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113 | }
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114 |
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115 | protected static IEnumerable<string> SplitByNewLine(string input) {
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116 | return input.Split(new[] { Environment.NewLine, "\n", "\r\n" }, StringSplitOptions.None);
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117 | }
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118 |
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119 | private static string[] trueFormats = new[] { "true", "t", "1" };
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120 | private static string[] falseFormats = new[] { "false", "f", "0" };
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121 |
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122 | protected static bool ConvertBool(string input) {
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123 | var str = input.ToLower();
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124 |
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125 | if (trueFormats.Contains(str)) return true;
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126 | if (falseFormats.Contains(str)) return false;
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127 | throw new InvalidDataException(string.Format("Unable to parse {0} as boolean", str));
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128 | }
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129 |
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130 | public override IDeepCloneable Clone(Cloner cloner) {
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131 | return this;
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132 | }
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133 | }
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134 | } |
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