1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.Reflection;
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4 | using HeuristicLab.Persistence.Interfaces;
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5 |
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6 | namespace HeuristicLab.Persistence {
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7 |
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8 | public class Configuration {
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9 |
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10 | private readonly Dictionary<Type, IFormatter> formatters;
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11 | private readonly List<IDecomposer> decomposers;
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12 | private readonly Dictionary<Type, IDecomposer> decomposerCache;
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13 | public readonly IFormat Format;
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14 |
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15 | public Configuration(Dictionary<Type, IFormatter> formatters, IEnumerable<IDecomposer> decomposers) {
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16 | this.formatters = new Dictionary<Type, IFormatter>();
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17 | foreach ( var pair in formatters ) {
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18 | if (Format == null) {
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19 | Format = pair.Value.Format;
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20 | } else if (pair.Value.Format != Format ) {
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21 | throw new ArgumentException("All formatters must have the same IFormat.");
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22 | }
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23 | this.formatters.Add(pair.Key, pair.Value);
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24 | }
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25 | this.decomposers = new List<IDecomposer>(decomposers);
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26 | decomposerCache = new Dictionary<Type, IDecomposer>();
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27 | }
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28 |
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29 | public IFormatter GetFormatter(Type type) {
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30 | IFormatter formatter;
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31 | formatters.TryGetValue(type, out formatter);
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32 | return formatter;
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33 | }
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34 |
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35 | public IDecomposer GetDecomposer(Type type) {
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36 | IDecomposer decomposer;
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37 | decomposerCache.TryGetValue(type, out decomposer);
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38 | if (decomposer != null)
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39 | return decomposer;
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40 | foreach (IDecomposer d in decomposers) {
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41 | if (d.CanSerialize(type)) {
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42 | decomposerCache.Add(type, d);
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43 | return d;
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44 | }
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45 | }
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46 | return null;
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47 | }
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48 |
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49 | }
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50 |
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51 | public class ConfigurationService {
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52 |
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53 | private readonly Dictionary<IFormat, List<IFormatter>> formatters;
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54 | private readonly List<IDecomposer> decomposers;
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55 |
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56 | private static ConfigurationService instance;
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57 | public static ConfigurationService Instance {
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58 | get {
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59 | if (instance == null) {
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60 | instance = new ConfigurationService();
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61 | }
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62 | return instance;
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63 | }
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64 | }
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65 |
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66 | public ConfigurationService() {
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67 | formatters = new Dictionary<IFormat, List<IFormatter>>();
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68 | decomposers = new List<IDecomposer>();
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69 | Reset();
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70 | }
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71 |
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72 | public void Reset() {
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73 | Assembly defaultAssembly = Assembly.GetExecutingAssembly();
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74 | DiscoverFrom(defaultAssembly);
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75 | foreach (Assembly a in AppDomain.CurrentDomain.GetAssemblies())
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76 | if ( a != defaultAssembly )
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77 | DiscoverFrom(a);
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78 | }
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79 |
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80 | protected void DiscoverFrom(Assembly a) {
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81 | foreach (Type t in a.GetTypes()) {
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82 | if (t.GetInterface(typeof (IFormatter).FullName) != null) {
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83 | try {
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84 | IFormatter formatter = (IFormatter) Activator.CreateInstance(t, true);
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85 | if ( ! formatters.ContainsKey(formatter.Format) ) {
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86 | formatters.Add(formatter.Format, new List<IFormatter>());
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87 | }
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88 | formatters[formatter.Format].Add(formatter);
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89 | } catch (MissingMethodException) {
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90 | Console.WriteLine("WARNING: Could not instantiate {0}", t.FullName);
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91 | }
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92 | }
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93 | if (t.GetInterface(typeof (IDecomposer).FullName) != null) {
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94 | try {
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95 | decomposers.Add((IDecomposer) Activator.CreateInstance(t, true));
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96 | } catch (MissingMethodException) {
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97 | Console.WriteLine("WARNING: Could not instantiate {0}", t.FullName);
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98 | }
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99 | }
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100 | }
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101 | }
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102 |
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103 | public Configuration GetDefaultConfig(IFormat format) {
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104 | Dictionary<Type, IFormatter> formatterConfig = new Dictionary<Type, IFormatter>();
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105 | foreach ( IFormatter f in formatters[format] ) {
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106 | if ( ! formatterConfig.ContainsKey(f.Type) )
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107 | formatterConfig.Add(f.Type, f);
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108 | }
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109 | return new Configuration(formatterConfig, decomposers);
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110 | }
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111 |
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112 | }
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113 |
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114 | } |
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