1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | |
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15 | package de.ugoe.cs.autoquest.plugin.html.guimodel; |
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16 | |
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17 | import de.ugoe.cs.autoquest.eventcore.guimodel.IGUIElementSpec; |
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18 | |
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19 | /** |
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20 | * <p> |
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21 | * This is a GUI element specification for tags in HTML documents. Each tag belongs to a certain |
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22 | * document. However, for similarity comparison, two page elements are similar even if they do |
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23 | * not belong to the same document. Each page element has a tag name and either an id or at least |
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24 | * an index in the list of siblings of the same type. |
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25 | * </p> |
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26 | * |
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27 | * @author Patrick Harms |
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28 | */ |
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29 | public class HTMLPageElementSpec extends HTMLGUIElementSpec implements IGUIElementSpec { |
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30 | |
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31 | /** |
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32 | * <p> |
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33 | * default serial version UID |
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34 | * </p> |
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35 | */ |
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36 | private static final long serialVersionUID = 1L; |
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37 | |
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38 | /** |
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39 | * <p> |
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40 | * the page to which the represented tag belongs |
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41 | * </p> |
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42 | */ |
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43 | private HTMLDocumentSpec page; |
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44 | |
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45 | /** |
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46 | * <p> |
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47 | * the name of the tag represented by this specification |
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48 | * </p> |
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49 | */ |
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50 | private String tagName; |
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51 | |
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52 | /** |
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53 | * <p> |
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54 | * the id of the tag represented by this specification, i.e., the value of the id attribute |
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55 | * of the tag. May be null in the case the id attribute of the tag is not set. |
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56 | * </p> |
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57 | */ |
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58 | private String htmlId; |
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59 | |
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60 | /** |
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61 | * <p> |
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62 | * the index of the tag (0 based) in the list of siblings in the same parent being of the |
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63 | * same type. If, e.g., a parent has three li tags as children, the first will have index 0, |
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64 | * the second index 1 and the third index2. The indexes are ignored, if the tag have an |
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65 | * assigned id. |
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66 | * </p> |
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67 | */ |
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68 | private int index; |
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69 | |
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70 | /** |
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71 | * <p> |
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72 | * initializes the specification with the page to which the represented tag belongs, the tags |
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73 | * name, its id or its index. |
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74 | * </p> |
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75 | * |
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76 | * @param page the page to which the represented tag belongs |
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77 | * @param tagName the name of the tag represented by this specification |
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78 | * @param htmlId the id of the tag represented by this specification |
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79 | * @param index the index of the tag |
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80 | * |
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81 | * @throws IllegalArgumentException if page and name are null or if neither an id nor an index |
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82 | * are provided correctly |
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83 | */ |
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84 | public HTMLPageElementSpec(HTMLDocumentSpec page, String tagName, String htmlId, int index) { |
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85 | super(tagName, (page != null ? page.hashCode() : 0) + |
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86 | (tagName != null ? tagName.hashCode() : 0) + |
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87 | (htmlId != null ? htmlId.hashCode() : 0) + (index >= 0 ? index : 0)); |
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88 | |
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89 | if (page == null) { |
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90 | throw new IllegalArgumentException("page must not be null"); |
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91 | } |
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92 | else if (tagName == null) { |
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93 | throw new IllegalArgumentException("tag must not be null"); |
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94 | } |
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95 | else if ((htmlId == null) && (index < 0)) { |
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96 | throw new IllegalArgumentException |
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97 | ("either id must not be null or the index must be greater or equal to 0"); |
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98 | } |
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99 | |
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100 | this.page = page; |
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101 | this.tagName = tagName; |
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102 | this.htmlId = htmlId; |
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103 | this.index = index; |
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104 | } |
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105 | |
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106 | /* (non-Javadoc) |
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107 | * @see de.ugoe.cs.autoquest.eventcore.guimodel.IGUIElementSpec#getSimilarity(IGUIElementSpec) |
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108 | */ |
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109 | @Override |
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110 | public boolean getSimilarity(IGUIElementSpec other) { |
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111 | if (other instanceof HTMLPageElementSpec) { |
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112 | HTMLPageElementSpec otherSpec = (HTMLPageElementSpec) other; |
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113 | |
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114 | if (!super.getSimilarity(otherSpec)) { |
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115 | return false; |
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116 | } |
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117 | /*else if (!page.getSimilarity(otherSpec.page)) { |
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118 | return false; |
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119 | }*/ |
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120 | else if (!tagName.equals(otherSpec.tagName)) { |
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121 | return false; |
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122 | } |
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123 | |
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124 | if (htmlId != null) { |
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125 | return htmlId.equals(otherSpec.htmlId); |
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126 | } |
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127 | else if (index >= 0) { |
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128 | return index == otherSpec.index; |
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129 | } |
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130 | } |
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131 | |
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132 | return false; |
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133 | } |
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134 | |
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135 | /* (non-Javadoc) |
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136 | * @see java.lang.Object#toString() |
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137 | */ |
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138 | @Override |
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139 | public String toString() { |
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140 | String str = getTagName(); |
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141 | |
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142 | if ((getHtmlId() != null) && (!"".equals(getHtmlId()))) { |
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143 | str += "(id=\"" + getHtmlId() + "\")"; |
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144 | } |
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145 | else { |
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146 | str += "[" + getIndex() + "]"; |
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147 | } |
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148 | |
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149 | return str; |
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150 | } |
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151 | |
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152 | /** |
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153 | * <p> |
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154 | * returns the page to which the represented tag belongs |
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155 | * </p> |
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156 | * |
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157 | * @return the page to which the represented tag belongs |
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158 | */ |
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159 | HTMLDocumentSpec getPage() { |
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160 | return page; |
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161 | } |
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162 | |
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163 | /** |
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164 | * <p> |
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165 | * returns the name of the tag represented by this specification |
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166 | * </p> |
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167 | * |
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168 | * @return the name of the tag represented by this specification |
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169 | */ |
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170 | String getTagName() { |
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171 | return tagName; |
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172 | } |
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173 | |
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174 | /** |
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175 | * <p> |
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176 | * returns the id of the tag represented by this specification |
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177 | * </p> |
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178 | * |
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179 | * @return the id of the tag represented by this specification |
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180 | */ |
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181 | String getHtmlId() { |
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182 | return htmlId; |
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183 | } |
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184 | |
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185 | /** |
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186 | * <p> |
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187 | * returns the index of the tag |
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188 | * </p> |
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189 | * |
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190 | * @return the index of the tag |
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191 | */ |
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192 | int getIndex() { |
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193 | return index; |
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194 | } |
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195 | |
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196 | } |
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