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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 BASE catalog.
*
* @see LibraryResultParser
*/
class MarcxmlLibraryResultParser implements LibraryResultParser
{
private $mapping = [
'001' => ['field' => 'id', 'callback' => 'simpleMap', 'cb_args' => ''],
'008' => [
['field' => 'language', 'callback' => 'simpleFixFieldMap', 'cb_args' => ['start' => 35, 'length' => 3]],
['field' => 'issued', 'callback' => 'simpleFixFieldMap', 'cb_args' => ['start' => 7, 'length' => 4], 'format' => 'date']
],
'020' => ['field' => 'ISBN', 'callback' => 'simpleMap', 'cb_args' => '$a'],
'245' => ['field' => 'title', 'callback' => 'simpleMap', 'cb_args' => '$a $b $h'],
'264' => ['field' => 'publisher', 'callback' => 'simpleMap', 'cb_args' => '$a $b'],
'256' => ['field' => 'note', 'callback' => 'simpleMap', 'cb_args' => '$a' . "\n"],
'300' => ['field' => 'medium', 'callback' => 'simpleMap', 'cb_args' => '$a $b $c $e'],
'440' => ['field' => 'container-title', 'callback' => 'simpleMap', 'cb_args' => '$a $v'],
'500' => ['field' => 'note', 'callback' => 'simpleMap', 'cb_args' => '$a' . "\n"],
'502' => ['field' => 'note', 'callback' => 'simpleMap', 'cb_args' => '$a' . "\n"],
'518' => ['field' => 'note', 'callback' => 'simpleMap', 'cb_args' => '$a' . "\n"],
'520' => ['field' => 'note', 'callback' => 'simpleMap', 'cb_args' => '$a' . "\n"],
'533' => ['field' => 'note', 'callback' => 'simpleMap', 'cb_args' => '$n' . "\n"],
'600' => ['field' => 'note', 'callback' => 'simpleListMap', 'cb_args' => false],
'610' => ['field' => 'note', 'callback' => 'simpleListMap', 'cb_args' => false],
'611' => ['field' => 'note', 'callback' => 'simpleListMap', 'cb_args' => false],
'630' => ['field' => 'note', 'callback' => 'simpleListMap', 'cb_args' => false],
'650' => ['field' => 'note', 'callback' => 'simpleListMap', 'cb_args' => '$a'],
'651' => ['field' => 'note', 'callback' => 'simpleListMap', 'cb_args' => false],
'652' => ['field' => 'note', 'callback' => 'simpleListMap', 'cb_args' => false],
'653' => ['field' => 'note', 'callback' => 'simpleListMap', 'cb_args' => false],
'773' => [
['field' => 'publisher', 'callback' => 'simpleMap', 'cb_args' => '$t, $g, $d'],
['field' => 'ISSN', 'callback' => 'simpleMap', 'cb_args' => '$x'],
],
'100' => ['field' => 'author', 'callback' => 'simpleMap', 'cb_args' => '$a', 'format' => 'name'],
'700' => ['field' => 'author', 'callback' => 'notEmptyMap', 'cb_args' => ['$a', 'contributor', '$a;'], 'format' => 'name'],
'110' => ['field' => 'author', 'callback' => 'simpleMap', 'cb_args' => '$a, $b', 'format' => 'name'],
'111' => ['field' => 'author', 'callback' => 'notEmptyMap', 'cb_args' => ['$a, $b', 'contributor', '$a, $b;'], 'format' => 'name'],
'710' => ['field' => 'author', 'callback' => 'notEmptyMap', 'cb_args' => ['$a, $b', 'contributor', '$a, $b;'], 'format' => 'name'],
'711' => ['field' => 'author', 'callback' => 'notEmptyMap', 'cb_args' => ['$a, $b', 'contributor', '$a, $b;'], 'format' => 'name'],
'856' => ['field' => 'URL', 'callback' => 'notEmptyMap', 'cb_args' => ['$u', 'URL2', '$u']],
];
function simpleListMap($doc, $data, $field, $args = [], $format = '')
{
if (is_array($data)) {
$result = join('; ', $data);
} else {
$result = $data;
}
$result = (($doc->csl_data[$field])) ? $doc->csl_data[$field] . '; ' . $result : $result;
$doc->csl_data[$field] = trim($result);
}
function simpleFixFieldMap($doc, $data, $field, $args = [], $format = '')
{
if (is_array($args) && $data != "") {
if ($result = trim(mb_substr($data, $args['start'], $args['length']))) {
if ($format === 'date') {
$result = ['date-parts' => [[$result, 1, 1]]];
$doc->csl_data[$field] = $result;
} else {
$doc->csl_data[$field] = trim($doc->csl_data[$field] . " " . $result);
}
}
}
}
function notEmptyMap($doc, $data, $field, $args, $format = '')
{
if (empty($doc->csl_data[$field])) {
$this->simpleMap($doc, $data, $field, $args[0], $format);
} else {
$this->simpleMap($doc, $data, $args[1], $args[2], $format);
}
return;
}
function simpleMap($doc, $data, $field, $args, $format = '')
{
$trim_chars = " \t\n\r\0/,:.";
if ($args != "" && is_array($data)) {
foreach ($data as $key => $value) {
$search[] = '$' . $key;
$replace[] = $value;
}
$result = str_replace($search, $replace, $args);
$result = preg_replace('/\$[0-9a-z]\s*/', "", $result);
} else {
$result = $data;
}
$result = trim($result, $trim_chars);
if ($format == 'name') {
$author_data = explode(', ', $result);
$result =
[
'family' => $author_data[0],
'given' => $author_data[1],
'suffix' => ''
];
$doc->csl_data[$field][] = $result;
} else {
$doc->csl_data[$field] = trim($doc->csl_data[$field] . " " . $result);
}
}
/**
* @see LibraryResultParser::readResultSet
*/
public function readResultSet($data = ''): array
{
//echo '<pre>'. htmlready(print_r($data,1)) . '</pre>';
$dom = new \DOMDocument();
$dom->loadXML($data);
$collection = $dom->getElementsByTagName('collection')[0];
if (!$collection) {
//Wrong document type.
return [];
}
$records = $collection->getElementsByTagName('record');
$result_set = [];
foreach ($records as $record) {
$result_set[] = $this->readResultNode($record);
}
return $result_set;
}
/**
* Reads the XML nodes of one record and creates a LibraryDocument
* out of it.
*
* @param DOMElement $node The XML node of one record.
*
* @returns LibraryDocument The LibraryDocument instance that could be read
* from the data.
*/
public function readResultNode(\DOMElement $node): LibraryDocument
{
$result = new LibraryDocument();
$xmlrecord = simplexml_import_dom($node);
$plugin_mapping = $this->mapping;
foreach ($xmlrecord->controlfield as $field) {
$code = (string)$field['tag'];
$data = (string)$field;
if (isset($plugin_mapping[$code])) {
$mapping = (is_array($plugin_mapping[$code][0])) ? $plugin_mapping[$code] : [$plugin_mapping[$code]];
for ($j = 0; $j < count($mapping); ++$j) {
$map_method = $mapping[$j]['callback'];
$this->$map_method($result, $data, $mapping[$j]['field'], $mapping[$j]['cb_args'], $mapping[$j]['format']);
}
}
}
foreach ($xmlrecord->datafield as $field) {
$code = (string)$field['tag'];
$data = [];
foreach ($field->subfield as $subfield) {
$subcode = (string)$subfield['code'];
if ($subcode && !isset($data[$subcode])) {
$data[$subcode] = (string)$subfield;
}
}
if (isset($plugin_mapping[$code])) {
$mapping = (is_array($plugin_mapping[$code][0])) ? $plugin_mapping[$code] : [$plugin_mapping[$code]];
for ($j = 0; $j < count($mapping); ++$j) {
$map_method = $mapping[$j]['callback'];
$this->$map_method($result, $data, $mapping[$j]['field'], $mapping[$j]['cb_args'], $mapping[$j]['format']);
}
}
}
return $result;
}
/**
* @see LibraryResultParser::readRecord
*/
public function readRecord($data = ''): LibraryDocument
{
$dom = new DOMDocument();
$dom->loadXML($data);
$record = $dom->getElementsByTagName('record')[0];
if ($record instanceof \DOMElement) {
return $this->readResultNode($record);
}
throw new Exception('Could not read record');
}
/**
* This is a helper method to index the child nodes of a node which
* represent the Marc21 subfields. The index is the subfield code
* of the DOM child node.
*
* @param DOMElement $datafield The node whose child nodes shall be indexed.
*
* @returns DOMElement[] An array of DOMElement nodes reperesenting
* the indexed child nodes of the supplied node.
*/
protected function indexSubfields(\DOMElement $datafield): array
{
$indexed_subfields = [];
$subfields = $datafield->getElementsByTagName('subfield');
foreach ($subfields as $subfield) {
$code = $subfield->getAttribute('code');
$indexed_subfields[$code] = $subfield;
}
return $indexed_subfields;
}
}
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