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<?php |
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/** |
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* (c) Kitodo. Key to digital objects e.V. <[email protected]> |
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* |
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* This file is part of the Kitodo and TYPO3 projects. |
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* |
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* @license GNU General Public License version 3 or later. |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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*/ |
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namespace Kitodo\Dlf\Format; |
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/** |
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* Metadata MODS format class for the 'dlf' extension |
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* |
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* @author Sebastian Meyer <[email protected]> |
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* @package TYPO3 |
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* @subpackage dlf |
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* @access public |
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*/ |
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class Mods implements \Kitodo\Dlf\Common\MetadataInterface |
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{ |
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/** |
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* This extracts the essential MODS metadata from XML |
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* |
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* @access public |
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* |
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* @param \SimpleXMLElement $xml: The XML to extract the metadata from |
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* @param array &$metadata: The metadata array to fill |
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* |
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* @return void |
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*/ |
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public function extractMetadata(\SimpleXMLElement $xml, array &$metadata) |
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{ |
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$this->xml = $xml; |
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$this->metadata = $metadata; |
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$this->xml->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3'); |
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$this->getAuthors(); |
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$this->getHolders(); |
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$this->getPlaces(); |
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$this->getYears(); |
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$this->getDescription(); |
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$this->getIdentifier(); |
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$this->getLicense(); |
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$this->getObjectNames(); |
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$this->getObjectLocationMetadata(); |
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$metadata = $this->metadata; |
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} |
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/** |
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* Get "author" and "author_sorting". |
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* |
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* @access private |
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* |
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* @return void |
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*/ |
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private function getAuthors() { |
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$authors = $this->xml->xpath('./mods:name[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="aut"]'); |
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// Get "author" and "author_sorting" again if that was too sophisticated. |
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if (empty($authors)) { |
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// Get all names which do not have any role term assigned and assume these are authors. |
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$authors = $this->xml->xpath('./mods:name[not(./mods:role)]'); |
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} |
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if (!empty($authors)) { |
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for ($i = 0, $j = count($authors); $i < $j; $i++) { |
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$authors[$i]->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3'); |
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$identifier = $authors[$i]->xpath('./mods:nameIdentifier'); |
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// Check if there is a display form. |
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if (($displayForm = $authors[$i]->xpath('./mods:displayForm'))) { |
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$this->metadata['author'][$i] = (string) $displayForm[0]; |
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} elseif (($nameParts = $authors[$i]->xpath('./mods:namePart'))) { |
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$name = []; |
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$k = 4; |
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foreach ($nameParts as $namePart) { |
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if ( |
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isset($namePart['type']) |
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&& (string) $namePart['type'] == 'family' |
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) { |
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$name[0] = (string) $namePart; |
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} elseif ( |
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isset($namePart['type']) |
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&& (string) $namePart['type'] == 'given' |
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) { |
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$name[1] = (string) $namePart; |
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} elseif ( |
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isset($namePart['type']) |
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&& (string) $namePart['type'] == 'termsOfAddress' |
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) { |
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$name[2] = (string) $namePart; |
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} elseif ( |
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isset($namePart['type']) |
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&& (string) $namePart['type'] == 'date' |
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) { |
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$name[3] = (string) $namePart; |
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} else { |
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$name[$k] = (string) $namePart; |
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} |
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$k++; |
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} |
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ksort($name); |
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$this->metadata['author'][$i] = trim(implode(', ', $name)); |
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} |
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// Append "valueURI" to name using Unicode unit separator. |
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if (isset($authors[$i]['valueURI'])) { |
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$this->metadata['author'][$i] .= chr(31) . (string) $authors[$i]['valueURI']; |
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} |
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} |
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} |
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} |
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/** |
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* Get holder. |
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* |
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* @access private |
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* |
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* @return void |
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*/ |
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private function getHolders() { |
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$holders = $this->xml->xpath('./mods:name[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="prv"]'); |
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if (!empty($holders)) { |
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for ($i = 0, $j = count($holders); $i < $j; $i++) { |
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$holders[$i]->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3'); |
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$identifier = $holders[$i]->xpath('./mods:nameIdentifier'); |
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// Check if there is a display form. |
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if (($displayForm = $holders[$i]->xpath('./mods:displayForm'))) { |
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$this->metadata['holder'][$i] = (string) $displayForm[0]; |
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} elseif (($nameParts = $holders[$i]->xpath('./mods:namePart'))) { |
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$name = []; |
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$k = 4; |
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foreach ($nameParts as $namePart) { |
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if ( |
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isset($namePart['type']) |
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&& (string) $namePart['type'] == 'family' |
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) { |
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$name[0] = (string) $namePart; |
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} elseif ( |
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isset($namePart['type']) |
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&& (string) $namePart['type'] == 'given' |
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) { |
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$name[1] = (string) $namePart; |
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} elseif ( |
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isset($namePart['type']) |
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&& (string) $namePart['type'] == 'termsOfAddress' |
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) { |
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$name[2] = (string) $namePart; |
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} elseif ( |
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isset($namePart['type']) |
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&& (string) $namePart['type'] == 'date' |
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) { |
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$name[3] = (string) $namePart; |
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} else { |
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$name[$k] = (string) $namePart; |
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} |
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$k++; |
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} |
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ksort($name); |
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$this->metadata['holder'][$i] = trim(implode(', ', $name)); |
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} |
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// Append "valueURI" to name using Unicode unit separator. |
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if (isset($authors[$i]['valueURI'])) { |
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$this->metadata['holder'][$i] .= chr(31) . (string) $authors[$i]['valueURI']; |
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} |
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} |
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} |
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} |
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/** |
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* Get "place" and "place_sorting". |
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* |
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* @access private |
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* |
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* @return void |
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*/ |
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private function getPlaces() { |
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$places = $this->xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:place/mods:placeTerm'); |
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// Get "place" and "place_sorting" again if that was to sophisticated. |
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if (empty($places)) { |
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// Get all places and assume these are places of publication. |
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$places = $this->xml->xpath('./mods:originInfo/mods:place/mods:placeTerm'); |
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} |
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if (!empty($places)) { |
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foreach ($places as $place) { |
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$this->metadata['place'][] = (string) $place; |
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if (!$this->metadata['place_sorting'][0]) { |
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$this->metadata['place_sorting'][0] = preg_replace('/[[:punct:]]/', '', (string) $place); |
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} |
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} |
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} |
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} |
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/** |
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* Get "year" and "year_sorting". |
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* |
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* @access private |
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* |
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* @return void |
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*/ |
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private function getYears() { |
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// Get "year_sorting". |
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if (($years_sorting = $this->xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:dateOther[@type="order" and @encoding="w3cdtf"]'))) { |
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foreach ($years_sorting as $year_sorting) { |
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$this->metadata['year_sorting'][0] = intval($year_sorting); |
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} |
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} |
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// Get "year" and "year_sorting" if not specified separately. |
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$years = $this->xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:dateIssued[@keyDate="yes"]'); |
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// Get "year" and "year_sorting" again if that was to sophisticated. |
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if (empty($years)) { |
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// Get all dates and assume these are dates of publication. |
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$years = $this->xml->xpath('./mods:originInfo/mods:dateIssued'); |
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} |
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if (!empty($years)) { |
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foreach ($years as $year) { |
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$this->metadata['year'][] = (string) $year; |
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if (!$this->metadata['year_sorting'][0]) { |
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$year_sorting = str_ireplace('x', '5', preg_replace('/[^\d.x]/i', '', (string) $year)); |
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if ( |
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strpos($year_sorting, '.') |
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|| strlen($year_sorting) < 3 |
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) { |
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$year_sorting = ((intval(trim($year_sorting, '.')) - 1) * 100) + 50; |
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} |
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$this->metadata['year_sorting'][0] = intval($year_sorting); |
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} |
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} |
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} |
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} |
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/** |
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* Get "description" stored in recordInfoNote. |
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* |
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* @access private |
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* |
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* @return void |
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*/ |
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private function getDescription() { |
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$this->getSingleMetadata('description', './mods:recordInfo/mods:recordInfoNote/text()'); |
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} |
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/** |
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* Get "identifier" - example: hotels (built public accommodations), AAT ID: 300007166. |
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* |
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* @access private |
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* |
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* @return void |
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*/ |
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private function getIdentifier() { |
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$this->getSingleMetadata('identifier', './mods:identifier/text()'); |
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} |
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/** |
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* Get "license" - license on which object is published. |
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* |
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* @access private |
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* |
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* @return void |
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*/ |
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private function getLicense() { |
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$this->getSingleMetadata('license', './mods:accessCondition/text()'); |
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} |
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/** |
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* Get names of the original object: |
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* - main name |
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* - alternative names |
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* |
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* @access private |
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* |
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* @return void |
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*/ |
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private function getObjectNames() { |
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$this->getSingleMetadata('object_name', './mods:relatedItem/mods:titleInfo[not(@displayLabel="alternative")]/mods:title/text()'); |
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$this->getSingleMetadata('object_alternative_names', './mods:relatedItem/mods:titleInfo[@displayLabel="alternative"]/mods:title/text()'); |
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} |
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/** |
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* Get location information about the original object: |
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* - city (object_location) |
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* - geonames |
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* - wikidata |
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* - wikipedia |
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* |
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* @access private |
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* |
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* @return void |
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*/ |
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private function getObjectLocationMetadata() { |
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$this->getSingleMetadata('object_location', './mods:relatedItem/mods:location/mods:physicalLocation/text()'); |
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$this->getSingleMetadata('geonames', './mods:relatedItem/mods:location/mods:url[@displayLabel="geonames"]/text()'); |
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$this->getSingleMetadata('wikidata', './mods:relatedItem/mods:location/mods:url[@displayLabel="wikidata"]/text()'); |
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$this->getSingleMetadata('wikipedia', './mods:relatedItem/mods:location/mods:url[@displayLabel="wikipedia"]/text()'); |
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} |
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/** |
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305
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* Save to the metadata array the last found matching metadata. |
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306
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* |
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307
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* @access private |
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308
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* |
|
309
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* @param string $metadataIndex: The index in the array by which metadata is going to be accessible |
|
310
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|
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* @param string $xpath: The xpath for searching metadata in MODS |
|
311
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* |
|
312
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* @return void |
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313
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*/ |
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314
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private function getSingleMetadata($metadataIndex, $xpath) { |
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315
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$results = $this->xml->xpath($xpath); |
|
316
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|
if (!empty($results)) { |
|
317
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foreach ($results as $result) { |
|
318
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|
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$this->metadata[$metadataIndex][0] = (string) $result; |
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|
319
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} |
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320
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} |
|
321
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} |
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322
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} |
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323
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kitodo /
kitodo-presentation
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