1 | using System;
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2 | using System.IO;
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3 | using System.Linq;
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4 | using System.Collections.Generic;
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5 | using System.Reflection;
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6 | using System.Text;
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7 | using HeuristicLab.Persistence.Default.Xml;
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8 | using HeuristicLab.Persistence.Interfaces;
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9 | using HeuristicLab.Tracing;
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10 | using HeuristicLab.Persistence.Core.Tokens;
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11 |
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12 | namespace HeuristicLab.Persistence.Core {
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13 |
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14 | public class ConfigurationService {
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15 |
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16 | private static ConfigurationService instance;
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17 | private readonly Dictionary<IFormat, Configuration> customConfigurations;
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18 | public Dictionary<Type, List<IFormatter>> Formatters { get; private set; }
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19 | public List<IDecomposer> Decomposers { get; private set; }
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20 | public List<IFormat> Formats { get; private set; }
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21 |
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22 | public static ConfigurationService Instance {
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23 | get {
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24 | if (instance == null)
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25 | instance = new ConfigurationService();
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26 | return instance;
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27 | }
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28 | }
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29 |
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30 | private ConfigurationService() {
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31 | Formatters = new Dictionary<Type, List<IFormatter>>();
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32 | Decomposers = new List<IDecomposer>();
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33 | customConfigurations = new Dictionary<IFormat, Configuration>();
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34 | Formats = new List<IFormat>();
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35 | Reset();
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36 | LoadSettings();
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37 | }
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38 |
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39 | protected void LoadSettings() {
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40 | try {
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41 | if (String.IsNullOrEmpty(Properties.Settings.Default.CustomConfigurations) ||
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42 | String.IsNullOrEmpty(Properties.Settings.Default.CustomConfigurationsTypeCache))
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43 | return;
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44 | Deserializer deSerializer = new Deserializer(
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45 | XmlParser.ParseTypeCache(
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46 | new StringReader(
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47 | Properties.Settings.Default.CustomConfigurationsTypeCache)));
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48 | XmlParser parser = new XmlParser(
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49 | new StringReader(
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50 | Properties.Settings.Default.CustomConfigurations));
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51 | var newCustomConfigurations = (Dictionary<IFormat, Configuration>)
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52 | deSerializer.Deserialize(parser);
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53 | foreach (var config in newCustomConfigurations) {
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54 | customConfigurations[config.Key] = config.Value;
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55 | }
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56 | } catch (Exception e) {
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57 | Logger.Warn("Could not load settings.", e);
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58 | }
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59 | }
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60 |
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61 | protected void SaveSettings() {
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62 | Serializer serializer = new Serializer(
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63 | customConfigurations,
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64 | GetDefaultConfig(new XmlFormat()),
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65 | "CustomConfigurations");
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66 | XmlGenerator generator = new XmlGenerator();
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67 | StringBuilder configurationString = new StringBuilder();
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68 | foreach (ISerializationToken token in serializer) {
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69 | configurationString.Append(generator.Format(token));
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70 | }
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71 | StringBuilder configurationTypeCacheString = new StringBuilder();
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72 | foreach (string s in generator.Format(serializer.TypeCache))
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73 | configurationTypeCacheString.Append(s);
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74 | Properties.Settings.Default.CustomConfigurations =
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75 | configurationString.ToString();
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76 | Properties.Settings.Default.CustomConfigurationsTypeCache =
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77 | configurationTypeCacheString.ToString();
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78 | Properties.Settings.Default.Save();
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79 | }
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80 |
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81 | public void Reset() {
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82 | customConfigurations.Clear();
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83 | Formatters.Clear();
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84 | Decomposers.Clear();
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85 | Assembly defaultAssembly = Assembly.GetExecutingAssembly();
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86 | DiscoverFrom(defaultAssembly);
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87 | foreach (Assembly a in AppDomain.CurrentDomain.GetAssemblies())
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88 | if (a != defaultAssembly)
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89 | DiscoverFrom(a);
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90 | SortDecomposers();
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91 | }
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92 |
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93 | class PriortiySorter : IComparer<IDecomposer> {
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94 | public int Compare(IDecomposer x, IDecomposer y) {
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95 | return y.Priority - x.Priority;
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96 | }
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97 | }
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98 |
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99 | protected void SortDecomposers() {
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100 | Decomposers.Sort(new PriortiySorter());
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101 | }
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102 |
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103 | protected void DiscoverFrom(Assembly a) {
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104 | foreach (Type t in a.GetTypes()) {
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105 | if (t.GetInterface(typeof(IFormatter).FullName) != null) {
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106 | try {
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107 | IFormatter formatter = (IFormatter)Activator.CreateInstance(t, true);
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108 | if (!Formatters.ContainsKey(formatter.SerialDataType)) {
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109 | Formatters.Add(formatter.SerialDataType, new List<IFormatter>());
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110 | }
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111 | Formatters[formatter.SerialDataType].Add(formatter);
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112 | Logger.Debug(String.Format("discovered formatter {0} ({1} -> {2})",
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113 | t.VersionInvariantName(),
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114 | formatter.SourceType.VersionInvariantName(),
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115 | formatter.SerialDataType.VersionInvariantName()));
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116 | } catch (MissingMethodException e) {
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117 | Logger.Warn("Could not instantiate " + t.VersionInvariantName(), e);
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118 | } catch (ArgumentException e) {
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119 | Logger.Warn("Could not instantiate " + t.VersionInvariantName(), e);
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120 | }
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121 | }
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122 | if (t.GetInterface(typeof(IDecomposer).FullName) != null) {
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123 | try {
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124 | Decomposers.Add((IDecomposer)Activator.CreateInstance(t, true));
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125 | Logger.Debug("discovered decomposer " + t.VersionInvariantName());
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126 | } catch (MissingMethodException e) {
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127 | Logger.Warn("Could not instantiate " + t.VersionInvariantName(), e);
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128 | } catch (ArgumentException e) {
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129 | Logger.Warn("Could not instantiate " + t.VersionInvariantName(), e);
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130 | }
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131 | }
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132 | if (t.GetInterface(typeof(IFormat).FullName) != null) {
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133 | try {
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134 | IFormat format = (IFormat)Activator.CreateInstance(t, true);
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135 | Formats.Add(format);
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136 | Logger.Debug(String.Format("discovered format {0} ({2}) with serial data {1}.",
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137 | format.Name,
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138 | format.SerialDataType,
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139 | t.VersionInvariantName()));
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140 | } catch (MissingMethodException e) {
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141 | Logger.Warn("Could not instantiate " + t.VersionInvariantName(), e);
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142 | } catch (ArgumentException e) {
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143 | Logger.Warn("Could not instantiate " + t.VersionInvariantName(), e);
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144 | }
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145 | }
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146 | }
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147 | }
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148 |
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149 | public Configuration GetDefaultConfig(IFormat format) {
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150 | Dictionary<Type, IFormatter> formatterConfig = new Dictionary<Type, IFormatter>();
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151 | if (Formatters.ContainsKey(format.SerialDataType)) {
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152 | foreach (IFormatter f in Formatters[format.SerialDataType]) {
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153 | if (!formatterConfig.ContainsKey(f.SourceType))
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154 | formatterConfig.Add(f.SourceType, f);
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155 | }
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156 | } else {
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157 | Logger.Warn(String.Format(
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158 | "No formatters found for format {0} with serial data type {1}",
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159 | format.GetType().VersionInvariantName(),
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160 | format.SerialDataType.VersionInvariantName()));
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161 | }
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162 | return new Configuration(format, formatterConfig.Values, Decomposers.Where((d) => d.Priority > 0));
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163 | }
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164 |
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165 | public Configuration GetConfiguration(IFormat format) {
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166 | if (customConfigurations.ContainsKey(format))
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167 | return customConfigurations[format];
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168 | return GetDefaultConfig(format);
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169 | }
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170 |
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171 | public void DefineConfiguration(Configuration configuration) {
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172 | customConfigurations[configuration.Format] = configuration;
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173 | SaveSettings();
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174 | }
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175 |
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176 | }
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177 |
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178 | } |
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