Mercurial > repos > IBBoard.WarFoundry.API

annotate API/Factories/AbstractNativeWarFoundryFactory.cs @ 417:2a36ebb7b6a9

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Re #358: Handle factory.CreateObjectsFromFile where GetFileAsSupportedType returns null * Refactor out methods for file loading * Add "if zip file not null" check around newly refactored method
author IBBoard <dev@ibboard.co.uk>
date Tue, 06 Sep 2011 20:36:06 +0100
parents c70973b65090
children 86725e88052e
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1 // This file (AbstractNativeWarFoundryFactory.cs) is a part of the IBBoard.WarFoundry.API project and is copyright 2007, 2008, 2009 IBBoard.
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2 //
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3 // The file and the library/program it is in are licensed and distributed, without warranty, under the GNU Affero GPL license, either version 3 of the License or (at your option) any later version. Please see COPYING for more information and the full license.
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4
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5 using System;
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6 using System.IO;
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7 using System.Xml;
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8 using System.Xml.Schema;
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9 using System.Collections.Generic;
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10 using System.Text;
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11 using IBBoard;
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12 using IBBoard.IO;
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13 using IBBoard.Lang;
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14 using IBBoard.Logging;
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15 using IBBoard.Xml;
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16 using IBBoard.WarFoundry.API.Objects;
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17 using ICSharpCode.SharpZipLib.Zip;
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18 using IBBoard.Collections;
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19
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20 namespace IBBoard.WarFoundry.API.Factories
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21 {
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22 /// <summary>
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23 /// Base abstract class for all factories that load native WarFoundry data.
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24 /// </summary>
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25 public abstract class AbstractNativeWarFoundryFactory : AbstractWarFoundryFactory<ZipFile>, INativeWarFoundryFactory
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26 {
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27 protected AbstractNativeWarFoundryFactory()
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28 {
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29 //Do nothing - just make the constructor non-public
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30 }
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31
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32 protected override ZipFile GetFileAsSupportedType (FileInfo file)
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33 {
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34 ZipFile zip = null;
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35 string ext = file.Extension.ToLower();
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36
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37 if (ext == ".race" || ext == ".army" || ext == ".system")
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38 {
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39 try
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40 {
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41 zip = new ZipFile(file.FullName);
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42 }
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43 catch (ZipException)
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44 {
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45 //Silently dispose as per spec for the method
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46 }
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47 catch (IOException)
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48 {
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49 //Silently dispose as per spec for the method
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50 }
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51 }
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52 return zip;
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53 }
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54
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55 protected override bool CheckCanHandleFileFormat (ZipFile file)
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56 {
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57 return CheckCanHandleFileAsGameSystem(file) || CheckCanHandleFileAsRace(file) || CheckCanHandleFileAsArmy(file);
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58 }
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59
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60 protected override bool CheckCanHandleFileAsGameSystem(ZipFile file)
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61 {
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62 return CheckCanFindSystemFileContent(file);
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63 }
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64
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65 protected abstract bool CheckCanFindSystemFileContent(ZipFile file);
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66
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67 protected override bool CheckCanHandleFileAsRace(ZipFile file)
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68 {
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69 return CheckCanFindRaceFileContent(file);
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70 }
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71
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72 protected abstract bool CheckCanFindRaceFileContent(ZipFile file);
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73
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74 protected override bool CheckCanHandleFileAsArmy(ZipFile file)
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75 {
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76 return CheckCanFindArmyFileContent(file);
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77 }
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78
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79 protected abstract bool CheckCanFindArmyFileContent(ZipFile file);
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80
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81 protected override ICollection<IWarFoundryObject> DoCreateObjectsFromFile (ZipFile file)
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82 {
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83 ICollection<IWarFoundryObject> objects = new List<IWarFoundryObject>();
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84
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85 if (file != null)
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86 {
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87 DoCreateObjectsFromZip(file, objects);
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88 }
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89
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90 return objects;
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91 }
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92
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93 private void DoCreateObjectsFromZip(ZipFile file, ICollection<IWarFoundryObject> objects)
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94 {
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95 try
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96 {
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97 CreateSystemObjectsFromZip (file, objects);
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98 CreateRaceObjectsFromZip (file, objects);
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99 CreateArmyObjectsFromZip (file, objects);
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100 }
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101 finally
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102 {
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103 file.Close();
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104 }
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105 }
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106
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107 private void CreateSystemObjectsFromZip (ZipFile file, ICollection<IWarFoundryObject> objects)
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108 {
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109 if (CheckCanFindSystemFileContent(file))
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110 {
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111 foreach (GameSystem system in CreateGameSystemsFromFile(file))
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112 {
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113 OnGameSystemLoaded(system);
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114 objects.Add(system);
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115 }
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116 }
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117 }
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118
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119 void CreateRaceObjectsFromZip (ZipFile file, ICollection<IWarFoundryObject> objects)
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120 {
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121 if (CheckCanFindRaceFileContent(file))
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122 {
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123 foreach(Race race in CreateRacesFromFile(file))
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124 {
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125 OnRaceLoaded(race);
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126 objects.Add(race);
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127 }
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128 }
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129 }
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130
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131 void CreateArmyObjectsFromZip (ZipFile file, ICollection<IWarFoundryObject> objects)
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132 {
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133 if (CheckCanFindArmyFileContent(file))
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134 {
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135 foreach (Army army in CreateArmiesFromFile(file))
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136 {
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137 OnArmyLoaded(army);
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138 objects.Add(army);
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139 }
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140 }
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141 }
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142
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143 protected ICollection<Army> CreateArmiesFromFile(ZipFile file)
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144 {
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145 ICollection<ZipEntry> dataStreams = GetArmyZipEntries(file);
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146 ICollection<Army> armies = new List<Army>();
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147
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148 foreach (ZipEntry entry in dataStreams)
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149 {
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150 using (Stream dataStream = file.GetInputStream(entry))
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151 {
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152 armies.Add(CreateArmyFromStream(file, dataStream));
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153 }
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154 }
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155
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156 return armies;
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157 }
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158
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159 protected abstract ICollection<ZipEntry> GetArmyZipEntries(ZipFile file);
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160 protected abstract Army CreateArmyFromStream(ZipFile file, Stream dataStream);
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161
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162 protected ICollection<Race> CreateRacesFromFile(ZipFile file)
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163 {
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164 ICollection<ZipEntry> dataStreams = GetRaceZipEntries(file);
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165 ICollection<Race> races = new List<Race>();
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166
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167 foreach (ZipEntry entry in dataStreams)
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168 {
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169 using (Stream dataStream = file.GetInputStream(entry))
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170 {
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171 races.Add(CreateRaceFromStream(file, dataStream));
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172 }
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173 }
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174
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175 return races;
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176 }
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177
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178 protected abstract ICollection<ZipEntry> GetRaceZipEntries(ZipFile file);
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179 protected abstract Race CreateRaceFromStream(ZipFile file, Stream dataStream);
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180
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181 protected ICollection<GameSystem> CreateGameSystemsFromFile(ZipFile file)
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182 {
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183 ICollection<ZipEntry> dataStreams = GetGameSystemZipEntries(file);
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184 ICollection<GameSystem> systems = new List<GameSystem>();
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185
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186 foreach (ZipEntry entry in dataStreams)
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187 {
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188 using (Stream dataStream = file.GetInputStream(entry))
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189 {
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190 systems.Add(CreateGameSystemFromStream(file, dataStream));
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191 }
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192 }
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193
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194 return systems;
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195 }
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196
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197 protected abstract ICollection<ZipEntry> GetGameSystemZipEntries(ZipFile file);
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198 protected abstract GameSystem CreateGameSystemFromStream(ZipFile file, Stream dataStream);
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199
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200 public override bool Equals (object o)
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201 {
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202 if (o == this)
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203 {
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204 return true;
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205 }
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206 else if (o == null || !(this.GetType().Equals(o.GetType())))
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207 {
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208 return false;
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209 }
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210
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211 return true;
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212 }
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213
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214 public override int GetHashCode ()
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215 {
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216 return GetType().FullName.GetHashCode();
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217 }
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218 }
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219 }