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<?php
/**
* This file is part of Stud.IP.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* @author Moritz Strohm <strohm@data-quest.de>
* @copyright 2020
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
* @since 4.6
*/
/**
* This is a LibraryResultParser implementation for the K10PlusZentral catalog.
*
* @see LibraryResultParser
*/
class K10PlusLibraryResultParser implements LibraryResultParser
{
/**
* @see LibraryResultParser::readResultSet
*/
public function readResultSet($data = '') : array
{
//Convert the data to JSON:
$json_data = json_decode($data, true);
$header = $json_data['responseHeader'];
if ($header['status'] != 0) {
//Probably an error!
return [];
}
if (!$json_data['response']) {
//JSON structure error!
return [];
}
if (!$json_data['response']['docs'] || ($json_data['response']['numFound'] == 0)) {
//No data found.
return [];
}
$result_set = [];
foreach ($json_data['response']['docs'] as $doc_data) {
$result = $this->readRecord($doc_data);
if ($result instanceof LibraryDocument) {
$result_set[] = $result;
}
}
return $result_set;
}
/**
* @see LibraryResultParser::readRecord
*/
public function readRecord($data = '') : LibraryDocument
{
$parser = new MarcxmlLibraryResultParser();
//The result is one marcxml record in a collection:
$result = $parser->readResultSet($data['fullrecord_marcxml'])[0];
//Now we have to set the type using the data from the JSON fields:
$doc_type = $data['format'][0];
if (($doc_type == 'Article') || ($doc_type == 'electronic Article')) {
$result->type = 'article';
} elseif (($doc_type == 'Book') || ($doc_type == 'eBook')) {
$result->type = 'book';
} elseif ($doc_type == 'journal') {
$result->type = 'article-journal';
}
if (!isset($result->csl_data['URL'])) {
$result->csl_data['URL'] = $data['url'];
}
$result->filterCslFieldsByType();
return $result;
}
}
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