Erikmitk /
kitodo-presentation
| Total Complexity | 57 |
| Total Lines | 346 |
| Duplicated Lines | 0 % |
| Changes | 7 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Mods often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Mods, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
||
| 29 | class Mods implements MetadataInterface |
||
| 30 | { |
||
| 31 | /** |
||
| 32 | * @access private |
||
| 33 | * @var \SimpleXMLElement The metadata XML |
||
| 34 | **/ |
||
| 35 | private $xml; |
||
| 36 | |||
| 37 | /** |
||
| 38 | * @access private |
||
| 39 | * @var ModsReader The metadata XML |
||
| 40 | **/ |
||
| 41 | private $modsReader; |
||
| 42 | |||
| 43 | /** |
||
| 44 | * @access private |
||
| 45 | * @var array The metadata array |
||
| 46 | **/ |
||
| 47 | private $metadata; |
||
| 48 | |||
| 49 | /** |
||
| 50 | * @access private |
||
| 51 | * @var bool The metadata array |
||
| 52 | **/ |
||
| 53 | private $useExternalApis; |
||
| 54 | |||
| 55 | /** |
||
| 56 | * This extracts the essential MODS metadata from XML |
||
| 57 | * |
||
| 58 | * @access public |
||
| 59 | * |
||
| 60 | * @param \SimpleXMLElement $xml The XML to extract the metadata from |
||
| 61 | * @param array &$metadata The metadata array to fill |
||
| 62 | * @param bool $useExternalApis true if external APIs should be called, false otherwise |
||
| 63 | * |
||
| 64 | * @return void |
||
| 65 | */ |
||
| 66 | public function extractMetadata(\SimpleXMLElement $xml, array &$metadata, bool $useExternalApis): void |
||
| 67 | { |
||
| 68 | $this->xml = $xml; |
||
| 69 | $this->metadata = $metadata; |
||
| 70 | $this->useExternalApis = $useExternalApis; |
||
| 71 | |||
| 72 | $this->modsReader = new ModsReader($this->xml); |
||
| 73 | |||
| 74 | $this->getAuthors(); |
||
| 75 | $this->getHolders(); |
||
| 76 | $this->getPlaces(); |
||
| 77 | $this->getYears(); |
||
| 78 | |||
| 79 | $metadata = $this->metadata; |
||
| 80 | } |
||
| 81 | |||
| 82 | /** |
||
| 83 | * Get "author" and "author_sorting". |
||
| 84 | * |
||
| 85 | * @access private |
||
| 86 | * |
||
| 87 | * @return void |
||
| 88 | */ |
||
| 89 | private function getAuthors(): void |
||
| 90 | { |
||
| 91 | $authors = $this->modsReader->getNames('[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="aut"]'); |
||
| 92 | // Get "author" and "author_sorting" again if that was too sophisticated. |
||
| 93 | if (empty($authors)) { |
||
| 94 | // Get all names which do not have any role term assigned and assume these are authors. |
||
| 95 | $authors = $this->modsReader->getNames('[not(./mods:role)]'); |
||
| 96 | } |
||
| 97 | if (!empty($authors)) { |
||
| 98 | for ($i = 0, $j = count($authors); $i < $j; $i++) { |
||
| 99 | $identifiers = $authors[$i]->getNameIdentifiers('[@type="orcid"]'); |
||
| 100 | if ($this->useExternalApis && !empty($identifiers)) { |
||
| 101 | $this->getAuthorFromOrcidApi($identifiers[0]->getValue(), $authors, $i); |
||
| 102 | } else { |
||
| 103 | $this->getAuthorFromXml($authors, $i); |
||
| 104 | } |
||
| 105 | } |
||
| 106 | } |
||
| 107 | } |
||
| 108 | |||
| 109 | /** |
||
| 110 | * Get author from ORCID API. |
||
| 111 | * |
||
| 112 | * @access private |
||
| 113 | * |
||
| 114 | * @param string $orcidId |
||
| 115 | * @param array $authors |
||
| 116 | * @param int $i |
||
| 117 | * |
||
| 118 | * @return void |
||
| 119 | */ |
||
| 120 | private function getAuthorFromOrcidApi(string $orcidId, array $authors, int $i): void |
||
| 121 | { |
||
| 122 | $profile = new OrcidProfile($orcidId); |
||
| 123 | $name = $profile->getFullName(); |
||
| 124 | if (!empty($name)) { |
||
| 125 | $this->metadata['author'][$i] = [ |
||
| 126 | 'name' => $name, |
||
| 127 | 'url' => 'https://orcid.org/' . $orcidId |
||
| 128 | ]; |
||
| 129 | } else { |
||
| 130 | //fallback into display form |
||
| 131 | $this->getAuthorFromXmlDisplayForm($authors, $i); |
||
| 132 | } |
||
| 133 | } |
||
| 134 | |||
| 135 | /** |
||
| 136 | * Get author from XML. |
||
| 137 | * |
||
| 138 | * @access private |
||
| 139 | * |
||
| 140 | * @param array $authors |
||
| 141 | * @param int $i |
||
| 142 | * |
||
| 143 | * @return void |
||
| 144 | */ |
||
| 145 | private function getAuthorFromXml(array $authors, int $i): void |
||
| 146 | { |
||
| 147 | $this->getAuthorFromXmlDisplayForm($authors, $i); |
||
| 148 | |||
| 149 | $nameParts = $authors[$i]->getNameParts(); |
||
| 150 | if (empty($this->metadata['author'][$i]) && $nameParts) { |
||
| 151 | $name = []; |
||
| 152 | $k = 4; |
||
| 153 | foreach ($nameParts as $namePart) { |
||
| 154 | if ( |
||
| 155 | !empty($namePart->getType()) |
||
| 156 | && $namePart->getType() == 'family' |
||
| 157 | ) { |
||
| 158 | $name[0] = $namePart->getValue(); |
||
| 159 | } elseif ( |
||
| 160 | !empty($namePart->getType()) |
||
| 161 | && $namePart->getType() == 'given' |
||
| 162 | ) { |
||
| 163 | $name[1] = $namePart->getValue(); |
||
| 164 | } elseif ( |
||
| 165 | !empty($namePart->getType()) |
||
| 166 | && $namePart->getType() == 'termsOfAddress' |
||
| 167 | ) { |
||
| 168 | $name[2] = $namePart->getValue(); |
||
| 169 | } elseif ( |
||
| 170 | !empty($namePart->getType()) |
||
| 171 | && $namePart->getType() == 'date' |
||
| 172 | ) { |
||
| 173 | $name[3] = $namePart->getValue(); |
||
| 174 | } else { |
||
| 175 | $name[$k] = $namePart->getValue(); |
||
| 176 | } |
||
| 177 | $k++; |
||
| 178 | } |
||
| 179 | ksort($name); |
||
| 180 | $this->metadata['author'][$i] = trim(implode(', ', $name)); |
||
| 181 | } |
||
| 182 | // Append "valueURI" to name using Unicode unit separator. |
||
| 183 | if (!empty($authors[$i]->getValueURI())) { |
||
| 184 | $this->metadata['author'][$i] .= pack('C', 31) . $authors[$i]->getValueURI(); |
||
| 185 | } |
||
| 186 | } |
||
| 187 | |||
| 188 | /** |
||
| 189 | * Get author from XML display form. |
||
| 190 | * |
||
| 191 | * @access private |
||
| 192 | * |
||
| 193 | * @param Name[] $authors |
||
| 194 | * @param int $i |
||
| 195 | * |
||
| 196 | * @return void |
||
| 197 | */ |
||
| 198 | private function getAuthorFromXmlDisplayForm(array $authors, int $i): void |
||
| 203 | } |
||
| 204 | } |
||
| 205 | |||
| 206 | /** |
||
| 207 | * Get holder. |
||
| 208 | * |
||
| 209 | * @access private |
||
| 210 | * |
||
| 211 | * @return void |
||
| 212 | */ |
||
| 213 | private function getHolders(): void |
||
| 214 | { |
||
| 215 | $holders = $this->modsReader->getNames('[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="prv"]'); |
||
| 216 | |||
| 217 | if (!empty($holders)) { |
||
| 218 | for ($i = 0, $j = count($holders); $i < $j; $i++) { |
||
| 219 | $identifiers = $holders[$i]->getNameIdentifiers('[@type="viaf"]'); |
||
| 220 | if ($this->useExternalApis && !empty($identifiers)) { |
||
| 221 | $this->getHolderFromViafApi($identifiers[0]->getValue(), $holders, $i); |
||
| 222 | } else { |
||
| 223 | $this->getHolderFromXml($holders, $i); |
||
| 224 | } |
||
| 225 | } |
||
| 226 | } |
||
| 227 | } |
||
| 228 | |||
| 229 | /** |
||
| 230 | * Get holder from VIAF API. |
||
| 231 | * |
||
| 232 | * @access private |
||
| 233 | * |
||
| 234 | * @param string $viafId |
||
| 235 | * @param array $holders |
||
| 236 | * @param int $i |
||
| 237 | * |
||
| 238 | * @return void |
||
| 239 | */ |
||
| 240 | private function getHolderFromViafApi(string $viafId, array $holders, int $i): void |
||
| 252 | } |
||
| 253 | } |
||
| 254 | |||
| 255 | /** |
||
| 256 | * Get holder from XML. |
||
| 257 | * |
||
| 258 | * @access private |
||
| 259 | * |
||
| 260 | * @param array $holders |
||
| 261 | * @param int $i |
||
| 262 | * |
||
| 263 | * @return void |
||
| 264 | */ |
||
| 265 | private function getHolderFromXml(array $holders, int $i): void |
||
| 266 | { |
||
| 267 | $this->getHolderFromXmlDisplayForm($holders, $i); |
||
| 268 | // Append "valueURI" to name using Unicode unit separator. |
||
| 269 | if (!empty($holders[$i]->getValueURI())) { |
||
| 270 | $this->metadata['holder'][$i] .= pack('C', 31) . $holders[$i]->getValueURI(); |
||
| 271 | } |
||
| 272 | } |
||
| 273 | |||
| 274 | /** |
||
| 275 | * Get holder from XML display form. |
||
| 276 | * |
||
| 277 | * @access private |
||
| 278 | * |
||
| 279 | * @param array $holders |
||
| 280 | * @param int $i |
||
| 281 | * |
||
| 282 | * @return void |
||
| 283 | */ |
||
| 284 | private function getHolderFromXmlDisplayForm(array $holders, int $i): void |
||
| 285 | { |
||
| 286 | // Check if there is a display form. |
||
| 287 | $displayForms = $holders[$i]->getDisplayForm(); |
||
| 288 | if ($displayForms) { |
||
| 289 | $this->metadata['holder'][$i] = $displayForms[0]->getValue(); |
||
| 290 | } |
||
| 291 | } |
||
| 292 | |||
| 293 | /** |
||
| 294 | * Get "place" and "place_sorting". |
||
| 295 | * |
||
| 296 | * @access private |
||
| 297 | * |
||
| 298 | * @return void |
||
| 299 | */ |
||
| 300 | private function getPlaces(): void |
||
| 330 | } |
||
| 331 | } |
||
| 332 | } |
||
| 333 | } |
||
| 334 | |||
| 335 | /** |
||
| 336 | * Get "year" and "year_sorting". |
||
| 337 | * |
||
| 338 | * @access private |
||
| 339 | * |
||
| 340 | * @return void |
||
| 341 | */ |
||
| 342 | private function getYears(): void |
||
| 375 | } |
||
| 376 | } |
||
| 377 | } |
||
| 381 |
Loading history...