tao-test/app/taoMediaManager/model/sharedStimulus/repository/SharedStimulusRepository.php

100 lines
3.4 KiB
PHP

<?php
/**
* 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; under version 2
* of the License (non-upgradable).
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright (c) 2020 (original work) Open Assessment Technologies SA;
*/
declare(strict_types=1);
namespace oat\taoMediaManager\model\sharedStimulus\repository;
use common_Exception;
use core_kernel_classes_EmptyProperty;
use core_kernel_classes_Literal;
use core_kernel_classes_Resource;
use oat\generis\model\data\Ontology;
use oat\oatbox\service\ConfigurableService;
use oat\taoMediaManager\model\fileManagement\FileManagement;
use oat\taoMediaManager\model\fileManagement\FileSourceUnserializer;
use oat\taoMediaManager\model\MediaService;
use oat\taoMediaManager\model\MediaSource;
use oat\taoMediaManager\model\sharedStimulus\FindQuery;
use oat\taoMediaManager\model\sharedStimulus\SharedStimulus;
class SharedStimulusRepository extends ConfigurableService implements SharedStimulusRepositoryInterface
{
/**
* @throws common_Exception
* @throws core_kernel_classes_EmptyProperty
*/
public function find(FindQuery $query): SharedStimulus
{
$resource = $this->getOntology()->getResource($query->getId());
return new SharedStimulus(
$query->getId(),
$this->getPropertyValue($resource, MediaService::PROPERTY_ALT_TEXT),
$this->getPropertyValue($resource, MediaService::PROPERTY_LANGUAGE),
$this->getContent($resource)
);
}
/**
* @throws common_Exception
* @throws core_kernel_classes_EmptyProperty
*/
private function getContent(core_kernel_classes_Resource $resource): string
{
$link = $this->getPropertyValue($resource, MediaService::PROPERTY_LINK);
$link = $this->getFileSourceUnserializer()->unserialize($link);
return (string)$this->getFileManagement()->getFileStream($link);
}
/**
* @throws common_Exception
* @throws core_kernel_classes_EmptyProperty
*/
private function getPropertyValue(core_kernel_classes_Resource $resource, string $uri)
{
$propertyValue = $resource->getUniquePropertyValue($resource->getProperty($uri));
if ($propertyValue instanceof core_kernel_classes_Resource) {
return $propertyValue->getUri();
}
if ($propertyValue instanceof core_kernel_classes_Literal) {
return (string)$propertyValue;
}
}
private function getFileManagement(): FileManagement
{
return $this->getServiceLocator()->get(FileManagement::SERVICE_ID);
}
private function getOntology(): Ontology
{
return $this->getServiceLocator()->get(Ontology::SERVICE_ID);
}
private function getFileSourceUnserializer(): FileSourceUnserializer
{
return $this->getServiceLocator()->get(FileSourceUnserializer::class);
}
}