/**
* Try to build an array of OCLC Number, ISBN or ISSN-based sub-queries by
* using OCLC X-services against a record driver object.
*
* @param \VuFind\RecordDriver\AbstractBase $driver Record driver object
*
* @return array
*/
protected function getQueryParts($driver)
{
$parts = [];
$oclcNum = $driver->tryMethod('getCleanOCLCNum');
if (!empty($oclcNum)) {
$oclcList = $this->wcUtils->getXOCLCNUM($oclcNum);
foreach ($oclcList as $current) {
$parts[] = "oclc_num:" . $current;
}
}
$isbn = $driver->tryMethod('getCleanISBN');
if (!empty($isbn)) {
$isbnList = $this->wcUtils->getXISBN($isbn);
foreach ($isbnList as $current) {
$parts[] = 'isbn:' . $current;
}
}
$issn = $driver->tryMethod('getCleanISSN');
if (!empty($issn)) {
$issnList = $this->wcUtils->getXISSN($issn);
foreach ($issnList as $current) {
$parts[] = 'issn:' . $current;
}
}
return $parts;
}
