kitodo-presentation/Classes/Format/Mods.php

134 lines
5.7 KiB
PHP

<?php
/**
* (c) Kitodo. Key to digital objects e.V. <contact@kitodo.org>
*
* This file is part of the Kitodo and TYPO3 projects.
*
* @license GNU General Public License version 3 or later.
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*/
namespace Kitodo\Dlf\Format;
/**
* Metadata MODS format class for the 'dlf' extension
*
* @author Sebastian Meyer <sebastian.meyer@slub-dresden.de>
* @package TYPO3
* @subpackage dlf
* @access public
*/
class Mods implements \Kitodo\Dlf\Common\MetadataInterface
{
/**
* This extracts the essential MODS metadata from XML
*
* @access public
*
* @param \SimpleXMLElement $xml: The XML to extract the metadata from
* @param array &$metadata: The metadata array to fill
*
* @return void
*/
public function extractMetadata(\SimpleXMLElement $xml, array &$metadata)
{
$xml->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3');
// Get "author" and "author_sorting".
$authors = $xml->xpath('./mods:name[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="aut"]');
// Get "author" and "author_sorting" again if that was to sophisticated.
if (empty($authors)) {
// Get all names which do not have any role term assigned and assume these are authors.
$authors = $xml->xpath('./mods:name[not(./mods:role)]');
}
if (!empty($authors)) {
for ($i = 0, $j = count($authors); $i < $j; $i++) {
$authors[$i]->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3');
// Check if there is a display form.
if (($displayForm = $authors[$i]->xpath('./mods:displayForm'))) {
$metadata['author'][$i] = (string) $displayForm[0];
} elseif (($nameParts = $authors[$i]->xpath('./mods:namePart'))) {
$name = [];
$k = 4;
foreach ($nameParts as $namePart) {
if (
isset($namePart['type'])
&& (string) $namePart['type'] == 'family'
) {
$name[0] = (string) $namePart;
} elseif (
isset($namePart['type'])
&& (string) $namePart['type'] == 'given'
) {
$name[1] = (string) $namePart;
} elseif (
isset($namePart['type'])
&& (string) $namePart['type'] == 'termsOfAddress'
) {
$name[2] = (string) $namePart;
} elseif (
isset($namePart['type'])
&& (string) $namePart['type'] == 'date'
) {
$name[3] = (string) $namePart;
} else {
$name[$k] = (string) $namePart;
}
$k++;
}
ksort($name);
$metadata['author'][$i] = trim(implode(', ', $name));
}
// Append "valueURI" to name using Unicode unit separator.
if (isset($authors[$i]['valueURI'])) {
$metadata['author'][$i] .= chr(31) . (string) $authors[$i]['valueURI'];
}
}
}
// Get "place" and "place_sorting".
$places = $xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:place/mods:placeTerm');
// Get "place" and "place_sorting" again if that was to sophisticated.
if (empty($places)) {
// Get all places and assume these are places of publication.
$places = $xml->xpath('./mods:originInfo/mods:place/mods:placeTerm');
}
if (!empty($places)) {
foreach ($places as $place) {
$metadata['place'][] = (string) $place;
if (!$metadata['place_sorting'][0]) {
$metadata['place_sorting'][0] = preg_replace('/[[:punct:]]/', '', (string) $place);
}
}
}
// Get "year_sorting".
if (($years_sorting = $xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:dateOther[@type="order" and @encoding="w3cdtf"]'))) {
foreach ($years_sorting as $year_sorting) {
$metadata['year_sorting'][0] = intval($year_sorting);
}
}
// Get "year" and "year_sorting" if not specified separately.
$years = $xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:dateIssued[@keyDate="yes"]');
// Get "year" and "year_sorting" again if that was to sophisticated.
if (empty($years)) {
// Get all dates and assume these are dates of publication.
$years = $xml->xpath('./mods:originInfo/mods:dateIssued');
}
if (!empty($years)) {
foreach ($years as $year) {
$metadata['year'][] = (string) $year;
if (!$metadata['year_sorting'][0]) {
$year_sorting = str_ireplace('x', '5', preg_replace('/[^\d.x]/i', '', (string) $year));
if (
strpos($year_sorting, '.')
|| strlen($year_sorting) < 3
) {
$year_sorting = ((intval(trim($year_sorting, '.')) - 1) * 100) + 50;
}
$metadata['year_sorting'][0] = intval($year_sorting);
}
}
}
}
}