*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
declare(strict_types=1);
namespace OCC\OaiPmh2\Middleware;
use OCC\OaiPmh2\Middleware;
use OCC\OaiPmh2\Response;
use Psr\Http\Message\ServerRequestInterface;
/**
* Process the "ListMetadataFormats" request.
*
* @see https://www.openarchives.org/OAI/openarchivesprotocol.html#ListMetadataFormats
*
* @author Sebastian Meyer
* @package OAIPMH2
*/
class ListMetadataFormats extends Middleware
{
/**
* Prepare the response body for verb "ListMetadataFormats".
*
* @param ServerRequestInterface $request The incoming request
*
* @return void
*/
protected function prepareResponse(ServerRequestInterface $request): void
{
$formats = $this->em->getMetadataFormats($this->arguments['identifier']);
if (count($formats) === 0) {
if (
!isset($this->arguments['identifier'])
|| $this->em->isValidRecordIdentifier($this->arguments['identifier'])
) {
ErrorHandler::getInstance()->withError('noMetadataFormats');
} else {
ErrorHandler::getInstance()->withError('idDoesNotExist');
}
return;
}
$response = new Response($request);
$listMetadataFormats = $response->createElement('ListMetadataFormats', '', true);
foreach ($formats as $oaiFormat) {
$metadataFormat = $response->createElement('metadataFormat');
$listMetadataFormats->appendChild($metadataFormat);
$metadataPrefix = $response->createElement(
'metadataPrefix',
$oaiFormat->getPrefix()
);
$metadataFormat->appendChild($metadataPrefix);
$schema = $response->createElement(
'schema',
$oaiFormat->getSchema()
);
$metadataFormat->appendChild($schema);
$metadataNamespace = $response->createElement(
'metadataNamespace',
$oaiFormat->getNamespace()
);
$metadataFormat->appendChild($metadataNamespace);
}
$this->preparedResponse = $response;
}
}