kitodo /
kitodo-presentation
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| Total Complexity | 57 |
| Total Lines | 320 |
| Duplicated Lines | 0 % |
| Changes | 2 | ||
| 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 |
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| 25 | class Mods implements \Kitodo\Dlf\Common\MetadataInterface |
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| 26 | { |
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| 27 | /** |
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| 28 | * The metadata XML |
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| 29 | * |
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| 30 | * @var \SimpleXMLElement |
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| 31 | **/ |
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| 32 | private $xml; |
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| 33 | |||
| 34 | /** |
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| 35 | * The metadata array |
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| 36 | * |
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| 37 | * @var array |
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| 38 | **/ |
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| 39 | private $metadata; |
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| 40 | |||
| 41 | /** |
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| 42 | * This extracts the essential MODS metadata from XML |
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| 43 | * |
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| 44 | * @access public |
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| 45 | * |
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| 46 | * @param \SimpleXMLElement $xml: The XML to extract the metadata from |
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| 47 | * @param array &$metadata: The metadata array to fill |
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| 48 | * |
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| 49 | * @return void |
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| 50 | */ |
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| 51 | public function extractMetadata(\SimpleXMLElement $xml, array &$metadata) |
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| 69 | } |
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| 70 | |||
| 71 | /** |
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| 72 | * Get "author" and "author_sorting". |
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| 73 | * |
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| 74 | * @access private |
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| 75 | * |
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| 76 | * @return void |
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| 77 | */ |
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| 78 | private function getAuthors() { |
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| 79 | $authors = $this->xml->xpath('./mods:name[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="aut"]'); |
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| 80 | |||
| 81 | // Get "author" and "author_sorting" again if that was too sophisticated. |
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| 82 | if (empty($authors)) { |
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| 83 | // Get all names which do not have any role term assigned and assume these are authors. |
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| 84 | $authors = $this->xml->xpath('./mods:name[not(./mods:role)]'); |
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| 85 | } |
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| 86 | |||
| 87 | if (!empty($authors)) { |
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| 88 | for ($i = 0, $j = count($authors); $i < $j; $i++) { |
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| 89 | $authors[$i]->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3'); |
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| 90 | |||
| 91 | $identifier = $authors[$i]->xpath('./mods:nameIdentifier'); |
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| 92 | if ($identifier[0]['type'] == 'orcid' && !empty((string) $identifier[0])) { |
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| 93 | $orcidIdParts = explode('/', (string) $identifier[0]); |
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| 94 | $profile = new Profile(trim(end($orcidIdParts))); |
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| 95 | $this->metadata['author'][$i] = $profile->getFullName(); |
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| 96 | } else { |
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| 97 | // Check if there is a display form. |
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| 98 | if (($displayForm = $authors[$i]->xpath('./mods:displayForm'))) { |
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| 99 | $this->metadata['author'][$i] = (string) $displayForm[0]; |
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| 100 | } elseif (($nameParts = $authors[$i]->xpath('./mods:namePart'))) { |
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| 101 | $name = []; |
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| 102 | $k = 4; |
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| 103 | foreach ($nameParts as $namePart) { |
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| 104 | if ( |
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| 105 | isset($namePart['type']) |
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| 106 | && (string) $namePart['type'] == 'family' |
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| 107 | ) { |
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| 108 | $name[0] = (string) $namePart; |
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| 109 | } elseif ( |
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| 110 | isset($namePart['type']) |
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| 111 | && (string) $namePart['type'] == 'given' |
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| 112 | ) { |
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| 113 | $name[1] = (string) $namePart; |
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| 114 | } elseif ( |
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| 115 | isset($namePart['type']) |
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| 116 | && (string) $namePart['type'] == 'termsOfAddress' |
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| 117 | ) { |
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| 118 | $name[2] = (string) $namePart; |
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| 119 | } elseif ( |
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| 120 | isset($namePart['type']) |
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| 121 | && (string) $namePart['type'] == 'date' |
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| 122 | ) { |
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| 123 | $name[3] = (string) $namePart; |
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| 124 | } else { |
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| 125 | $name[$k] = (string) $namePart; |
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| 126 | } |
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| 127 | $k++; |
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| 128 | } |
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| 129 | ksort($name); |
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| 130 | $this->metadata['author'][$i] = trim(implode(', ', $name)); |
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| 131 | } |
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| 132 | // Append "valueURI" to name using Unicode unit separator. |
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| 133 | if (isset($authors[$i]['valueURI'])) { |
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| 134 | $this->metadata['author'][$i] .= chr(31) . (string) $authors[$i]['valueURI']; |
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| 135 | } |
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| 136 | } |
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| 137 | } |
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| 138 | } |
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| 139 | } |
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| 140 | |||
| 141 | /** |
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| 142 | * Get holder. |
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| 143 | * |
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| 144 | * @access private |
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| 145 | * |
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| 146 | * @return void |
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| 147 | */ |
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| 148 | private function getHolders() { |
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| 149 | $holders = $this->xml->xpath('./mods:name[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="prv"]'); |
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| 150 | |||
| 151 | if (!empty($holders)) { |
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| 152 | for ($i = 0, $j = count($holders); $i < $j; $i++) { |
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| 153 | $holders[$i]->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3'); |
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| 154 | |||
| 155 | $identifier = $holders[$i]->xpath('./mods:nameIdentifier'); |
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|
Unused Code
introduced
by
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| 156 | if (1 != 1) { |
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| 157 | //TODO: reading VIAF API |
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| 158 | } else { |
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| 159 | // Check if there is a display form. |
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| 160 | if (($displayForm = $holders[$i]->xpath('./mods:displayForm'))) { |
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| 161 | $this->metadata['holder'][$i] = (string) $displayForm[0]; |
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| 162 | } elseif (($nameParts = $holders[$i]->xpath('./mods:namePart'))) { |
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| 163 | $name = []; |
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| 164 | $k = 4; |
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| 165 | foreach ($nameParts as $namePart) { |
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| 166 | if ( |
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| 167 | isset($namePart['type']) |
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| 168 | && (string) $namePart['type'] == 'family' |
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| 169 | ) { |
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| 170 | $name[0] = (string) $namePart; |
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| 171 | } elseif ( |
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| 172 | isset($namePart['type']) |
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| 173 | && (string) $namePart['type'] == 'given' |
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| 174 | ) { |
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| 175 | $name[1] = (string) $namePart; |
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| 176 | } elseif ( |
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| 177 | isset($namePart['type']) |
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| 178 | && (string) $namePart['type'] == 'termsOfAddress' |
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| 179 | ) { |
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| 180 | $name[2] = (string) $namePart; |
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| 181 | } elseif ( |
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| 182 | isset($namePart['type']) |
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| 183 | && (string) $namePart['type'] == 'date' |
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| 184 | ) { |
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| 185 | $name[3] = (string) $namePart; |
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| 186 | } else { |
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| 187 | $name[$k] = (string) $namePart; |
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| 188 | } |
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| 189 | $k++; |
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| 190 | } |
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| 191 | ksort($name); |
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| 192 | $this->metadata['holder'][$i] = trim(implode(', ', $name)); |
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| 193 | } |
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| 194 | // Append "valueURI" to name using Unicode unit separator. |
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| 195 | if (isset($authors[$i]['valueURI'])) { |
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| 196 | $this->metadata['holder'][$i] .= chr(31) . (string) $authors[$i]['valueURI']; |
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| 197 | } |
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| 198 | } |
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| 199 | } |
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| 200 | } |
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| 201 | } |
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| 202 | |||
| 203 | /** |
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| 204 | * Get "place" and "place_sorting". |
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| 205 | * |
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| 206 | * @access private |
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| 207 | * |
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| 208 | * @return void |
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| 209 | */ |
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| 210 | private function getPlaces() { |
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| 211 | $places = $this->xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:place/mods:placeTerm'); |
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| 212 | // Get "place" and "place_sorting" again if that was to sophisticated. |
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| 213 | if (empty($places)) { |
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| 214 | // Get all places and assume these are places of publication. |
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| 215 | $places = $this->xml->xpath('./mods:originInfo/mods:place/mods:placeTerm'); |
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| 216 | } |
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| 217 | if (!empty($places)) { |
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| 218 | foreach ($places as $place) { |
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| 219 | $this->metadata['place'][] = (string) $place; |
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| 220 | if (!$this->metadata['place_sorting'][0]) { |
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| 221 | $this->metadata['place_sorting'][0] = preg_replace('/[[:punct:]]/', '', (string) $place); |
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| 222 | } |
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| 223 | } |
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| 224 | } |
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| 225 | } |
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| 226 | |||
| 227 | /** |
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| 228 | * Get "year" and "year_sorting". |
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| 229 | * |
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| 230 | * @access private |
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| 231 | * |
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| 232 | * @return void |
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| 233 | */ |
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| 234 | private function getYears() { |
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| 235 | // Get "year_sorting". |
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| 236 | if (($years_sorting = $this->xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:dateOther[@type="order" and @encoding="w3cdtf"]'))) { |
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| 237 | foreach ($years_sorting as $year_sorting) { |
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| 238 | $this->metadata['year_sorting'][0] = intval($year_sorting); |
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| 239 | } |
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| 240 | } |
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| 241 | // Get "year" and "year_sorting" if not specified separately. |
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| 242 | $years = $this->xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:dateIssued[@keyDate="yes"]'); |
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| 243 | // Get "year" and "year_sorting" again if that was to sophisticated. |
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| 244 | if (empty($years)) { |
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| 245 | // Get all dates and assume these are dates of publication. |
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| 246 | $years = $this->xml->xpath('./mods:originInfo/mods:dateIssued'); |
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| 247 | } |
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| 248 | if (!empty($years)) { |
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| 249 | foreach ($years as $year) { |
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| 250 | $this->metadata['year'][] = (string) $year; |
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| 251 | if (!$this->metadata['year_sorting'][0]) { |
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| 252 | $year_sorting = str_ireplace('x', '5', preg_replace('/[^\d.x]/i', '', (string) $year)); |
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| 253 | if ( |
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| 254 | strpos($year_sorting, '.') |
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| 255 | || strlen($year_sorting) < 3 |
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| 256 | ) { |
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| 257 | $year_sorting = ((intval(trim($year_sorting, '.')) - 1) * 100) + 50; |
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| 258 | } |
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| 259 | $this->metadata['year_sorting'][0] = intval($year_sorting); |
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| 260 | } |
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| 261 | } |
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| 262 | } |
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| 263 | } |
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| 264 | |||
| 265 | /** |
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| 266 | * Get "description" stored in recordInfoNote. |
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| 267 | * |
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| 268 | * @access private |
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| 269 | * |
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| 270 | * @return void |
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| 271 | */ |
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| 272 | private function getDescription() { |
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| 273 | $this->getSingleMetadata('description', './mods:recordInfo/mods:recordInfoNote/text()'); |
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| 274 | } |
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| 275 | |||
| 276 | /** |
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| 277 | * Get "identifier" - example: hotels (built public accommodations), AAT ID: 300007166. |
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| 278 | * |
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| 279 | * @access private |
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| 280 | * |
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| 281 | * @return void |
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| 282 | */ |
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| 283 | private function getIdentifier() { |
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| 285 | } |
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| 286 | |||
| 287 | /** |
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| 288 | * Get "license" - license on which object is published. |
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| 289 | * |
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| 290 | * @access private |
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| 291 | * |
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| 292 | * @return void |
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| 293 | */ |
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| 294 | private function getLicense() { |
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| 295 | $this->getSingleMetadata('license', './mods:accessCondition/text()'); |
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| 296 | } |
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| 297 | |||
| 298 | /** |
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| 299 | * Get names of the original object: |
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| 300 | * - main name |
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| 301 | * - alternative names |
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| 302 | * |
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| 303 | * @access private |
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| 304 | * |
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| 305 | * @return void |
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| 306 | */ |
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| 307 | private function getObjectNames() { |
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| 308 | $this->getSingleMetadata('object_name', './mods:relatedItem/mods:titleInfo[not(@displayLabel="alternative")]/mods:title/text()'); |
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| 309 | $this->getSingleMetadata('object_alternative_names', './mods:relatedItem/mods:titleInfo[@displayLabel="alternative"]/mods:title/text()'); |
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| 310 | } |
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| 311 | |||
| 312 | /** |
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| 313 | * Get location information about the original object: |
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| 314 | * - city (object_location) |
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| 315 | * - geonames |
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| 316 | * - wikidata |
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| 317 | * - wikipedia |
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| 318 | * |
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| 319 | * @access private |
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| 320 | * |
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| 321 | * @return void |
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| 322 | */ |
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| 323 | private function getObjectLocationMetadata() { |
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| 328 | } |
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| 329 | |||
| 330 | /** |
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| 331 | * Save to the metadata array the last found matching metadata. |
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| 332 | * |
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| 333 | * @access private |
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| 334 | * |
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| 335 | * @param string $metadataIndex: The index in the array by which metadata is going to be accessible |
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| 336 | * @param string $xpath: The xpath for searching metadata in MODS |
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| 337 | * |
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| 338 | * @return void |
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| 339 | */ |
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| 340 | private function getSingleMetadata($metadataIndex, $xpath) { |
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| 345 | } |
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| 346 | } |
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| 347 | } |
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| 348 | } |
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| 349 |
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