1 | //------------------------------------------------------------------------------------------------- |
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2 | // Module : $RCSfile: AbstractDefaultGUIElementFactory.java,v $ |
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3 | // Version : $Revision: 0.0 $ $Author: patrick $ $Date: 13.05.2012 $ |
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4 | // Project : GUIModel |
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5 | // Creation : 2012 by patrick |
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6 | // Copyright : Patrick Harms, 2012 |
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7 | //------------------------------------------------------------------------------------------------- |
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8 | package de.ugoe.cs.quest.eventcore.guimodel; |
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9 | |
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10 | import java.io.IOException; |
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11 | import java.io.InputStream; |
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12 | import java.lang.reflect.InvocationTargetException; |
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13 | import java.util.ArrayList; |
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14 | import java.util.HashMap; |
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15 | import java.util.List; |
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16 | import java.util.Map; |
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17 | import java.util.Properties; |
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18 | import java.util.logging.Level; |
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19 | import java.util.logging.Logger; |
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20 | |
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21 | //------------------------------------------------------------------------------------------------- |
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22 | /** |
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23 | * TODO comment |
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24 | * |
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25 | * @version $Revision: $ $Date: 13.05.2012$ |
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26 | * @author 2012, last modified by $Author: patrick$ |
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27 | */ |
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28 | //------------------------------------------------------------------------------------------------- |
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29 | public class AbstractDefaultGUIElementFactory |
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30 | { |
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31 | /** */ |
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32 | private Properties mMappingsFromConfiguration; |
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33 | |
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34 | /** */ |
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35 | private Map<String, List<GUIElement>> mGuiElementCache = new HashMap<String, List<GUIElement>>(); |
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36 | |
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37 | //----------------------------------------------------------------------------------------------- |
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38 | /** |
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39 | * TODO: comment |
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40 | * |
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41 | * @param key |
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42 | * @return |
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43 | */ |
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44 | //----------------------------------------------------------------------------------------------- |
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45 | protected List<GUIElement> getGUIElementCandidates(String key) |
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46 | { |
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47 | return mGuiElementCache.get(key); |
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48 | } |
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49 | |
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50 | //----------------------------------------------------------------------------------------------- |
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51 | /** |
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52 | * TODO: comment |
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53 | * |
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54 | * @param retVal |
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55 | */ |
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56 | //----------------------------------------------------------------------------------------------- |
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57 | protected void addGUIElementToCache(String key, GUIElement guiElement) |
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58 | { |
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59 | List<GUIElement> candidates = mGuiElementCache.get(key); |
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60 | |
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61 | if (candidates == null) |
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62 | { |
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63 | candidates = new ArrayList<GUIElement>(); |
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64 | mGuiElementCache.put(key, candidates); |
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65 | } |
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66 | |
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67 | candidates.add(guiElement); |
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68 | } |
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69 | |
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70 | //----------------------------------------------------------------------------------------------- |
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71 | /** |
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72 | * TODO: comment |
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73 | * |
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74 | * @param icon |
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75 | * @param icon2 |
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76 | * @return |
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77 | */ |
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78 | //----------------------------------------------------------------------------------------------- |
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79 | protected boolean equals(Object object1, Object object2) |
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80 | { |
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81 | if (object1 == object2) |
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82 | { |
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83 | return true; |
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84 | } |
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85 | else if (object1 != null) |
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86 | { |
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87 | return object1.equals(object2); |
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88 | } |
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89 | else |
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90 | { |
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91 | return object2 == null; |
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92 | } |
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93 | } |
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94 | |
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95 | //----------------------------------------------------------------------------------------------- |
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96 | /** |
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97 | * TODO: comment |
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98 | * |
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99 | * @param name |
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100 | * @return |
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101 | */ |
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102 | //----------------------------------------------------------------------------------------------- |
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103 | protected String getKey(String name) |
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104 | { |
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105 | if (name == null) |
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106 | { |
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107 | return "noName"; |
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108 | } |
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109 | else |
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110 | { |
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111 | return name; |
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112 | } |
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113 | } |
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114 | |
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115 | //----------------------------------------------------------------------------------------------- |
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116 | /** |
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117 | * TODO: comment |
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118 | * |
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119 | * @param parameterTypes |
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120 | * @param parameters |
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121 | * @return |
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122 | * @throws GUIModelConfigurationException |
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123 | */ |
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124 | //----------------------------------------------------------------------------------------------- |
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125 | protected GUIElement instantiateGUIElementFromConfiguredMappings(String type, |
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126 | Object... parameters) |
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127 | throws GUIModelConfigurationException |
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128 | { |
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129 | Properties mappings = getMappingsFromConfiguration(); |
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130 | |
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131 | String className = mappings.getProperty(type); |
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132 | if (className != null) |
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133 | { |
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134 | try |
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135 | { |
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136 | Class<?> clazz = this.getClass().getClassLoader().loadClass(className); |
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137 | |
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138 | if (!GUIElement.class.isAssignableFrom(clazz)) |
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139 | { |
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140 | Logger.getLogger(this.getClass().getName()).warning |
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141 | ("configured GUI element representing class " + className + " is no valid GUIElement " + |
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142 | "derivate."); |
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143 | |
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144 | return null; |
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145 | } |
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146 | |
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147 | Class<?>[] parameterTypes = new Class<?>[parameters.length]; |
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148 | |
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149 | for (int i = 0; i < parameters.length; i++) |
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150 | { |
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151 | parameterTypes[i] = parameters[i].getClass(); |
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152 | |
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153 | if (Boolean.class.equals(parameterTypes[i])) |
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154 | { |
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155 | parameterTypes[i] = boolean.class; |
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156 | } |
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157 | else if (Integer.class.equals(parameterTypes[i])) |
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158 | { |
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159 | parameterTypes[i] = int.class; |
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160 | } |
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161 | else if (Double.class.equals(parameterTypes[i])) |
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162 | { |
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163 | parameterTypes[i] = double.class; |
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164 | } |
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165 | else if (Character.class.equals(parameterTypes[i])) |
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166 | { |
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167 | parameterTypes[i] = char.class; |
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168 | } |
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169 | else if (Byte.class.equals(parameterTypes[i])) |
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170 | { |
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171 | parameterTypes[i] = byte.class; |
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172 | } |
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173 | else if (Float.class.equals(parameterTypes[i])) |
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174 | { |
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175 | parameterTypes[i] = float.class; |
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176 | } |
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177 | else if (Long.class.equals(parameterTypes[i])) |
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178 | { |
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179 | parameterTypes[i] = long.class; |
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180 | } |
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181 | else if (Short.class.equals(parameterTypes[i])) |
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182 | { |
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183 | parameterTypes[i] = short.class; |
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184 | } |
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185 | } |
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186 | |
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187 | GUIElement guiElement = |
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188 | (GUIElement) clazz.getConstructor(parameterTypes).newInstance(parameters); |
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189 | |
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190 | if (guiElement instanceof AbstractDefaultGUIElement) |
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191 | { |
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192 | ((AbstractDefaultGUIElement) guiElement).setOriginalTypeInfo(type); |
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193 | } |
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194 | |
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195 | return guiElement; |
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196 | } |
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197 | catch (ClassNotFoundException e) |
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198 | { |
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199 | Logger.getLogger(this.getClass().getName()).warning |
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200 | ("configured GUI element representing class " + className + " can not be loaded."); |
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201 | throw new GUIModelConfigurationException |
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202 | ("configured GUI element representing class " + className + " can not be loaded.", e); |
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203 | } |
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204 | catch (SecurityException e) |
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205 | { |
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206 | Logger.getLogger(this.getClass().getName()).log |
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207 | (Level.WARNING, "configured GUI element representing class " + className + " can not " + |
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208 | "be instantiated due to security reasons.", e); |
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209 | throw new GUIModelConfigurationException |
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210 | ("configured GUI element representing class " + className + " can not " + |
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211 | "be instantiated due to security reasons.", e); |
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212 | } |
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213 | catch (NoSuchMethodException e) |
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214 | { |
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215 | Logger.getLogger(this.getClass().getName()).warning |
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216 | ("configured GUI element representing class " + className + " does not provide an " + |
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217 | "appropriate constructur."); |
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218 | throw new GUIModelConfigurationException |
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219 | ("configured GUI element representing class " + className + " does not provide an " + |
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220 | "appropriate constructur.", e); |
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221 | } |
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222 | catch (IllegalArgumentException e) |
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223 | { |
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224 | Logger.getLogger(this.getClass().getName()).warning |
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225 | ("configured GUI element representing class " + className + " does not provide an " + |
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226 | "appropriate constructur accepting the provided parameters."); |
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227 | throw new GUIModelConfigurationException |
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228 | ("configured GUI element representing class " + className + " does not provide an " + |
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229 | "appropriate constructur accepting the provided parameters.", e); |
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230 | } |
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231 | catch (InstantiationException e) |
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232 | { |
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233 | Logger.getLogger(this.getClass().getName()).log |
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234 | (Level.WARNING, "configured GUI element representing class " + className + " can not " + |
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235 | "be instantiated.", e); |
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236 | throw new GUIModelConfigurationException |
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237 | ("configured GUI element representing class " + className + " can not " + |
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238 | "be instantiated.", e); |
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239 | } |
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240 | catch (IllegalAccessException e) |
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241 | { |
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242 | Logger.getLogger(this.getClass().getName()).log |
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243 | (Level.WARNING, "configured GUI element representing class " + className + " can not " + |
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244 | "be instantiated.", e); |
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245 | throw new GUIModelConfigurationException |
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246 | ("configured GUI element representing class " + className + " can not " + |
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247 | "be instantiated.", e); |
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248 | } |
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249 | catch (InvocationTargetException e) |
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250 | { |
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251 | Logger.getLogger(this.getClass().getName()).log |
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252 | (Level.WARNING, "configured GUI element representing class " + className + " can not " + |
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253 | "be instantiated.", e); |
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254 | throw new GUIModelConfigurationException |
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255 | ("configured GUI element representing class " + className + " can not " + |
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256 | "be instantiated.", e); |
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257 | } |
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258 | } |
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259 | |
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260 | return null; |
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261 | } |
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262 | |
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263 | //----------------------------------------------------------------------------------------------- |
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264 | /** |
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265 | * TODO: comment |
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266 | * |
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267 | * @return |
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268 | */ |
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269 | //----------------------------------------------------------------------------------------------- |
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270 | private synchronized Properties getMappingsFromConfiguration() |
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271 | { |
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272 | if (mMappingsFromConfiguration != null) |
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273 | { |
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274 | return mMappingsFromConfiguration; |
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275 | } |
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276 | else |
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277 | { |
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278 | mMappingsFromConfiguration = new Properties(); |
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279 | |
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280 | InputStream inStream = |
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281 | this.getClass().getClassLoader().getResourceAsStream("GUIElementMapping.txt"); |
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282 | |
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283 | if (inStream != null) |
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284 | { |
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285 | try |
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286 | { |
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287 | mMappingsFromConfiguration.load(inStream); |
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288 | } |
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289 | catch (IOException e) |
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290 | { |
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291 | Logger.getLogger(this.getClass().getName()).warning |
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292 | ("could not load GUIElementMapping.txt from classpath, but this may be intended"); |
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293 | } |
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294 | } |
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295 | |
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296 | return mMappingsFromConfiguration; |
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297 | } |
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298 | } |
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299 | |
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300 | } |
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