tao-test/app/taoQtiTest/models/classes/runner/TestDefinitionSerializerService.php

110 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) 2019 (original work) Open Assessment Technologies SA ;
*/
/**
* @author Péter Halász <peter@taotesting.com>
*/
namespace oat\taoQtiTest\models\runner;
use oat\oatbox\service\ConfigurableService;
use tao_models_classes_service_FileStorage;
use taoQtiTest_models_classes_QtiTestService;
class TestDefinitionSerializerService extends ConfigurableService
{
const SERVICE_ID = 'taoQtiTest/TestDefinitionSerializerService';
/**
* @param QtiRunnerServiceContext $serviceContext
* @return array
*/
public function getSerializedTestDefinition(QtiRunnerServiceContext $serviceContext)
{
return $this->parseXmlToArray($this->getTestDefinitionXml($serviceContext));
}
/**
* @param string $xml
* @return array
*/
private function parseXmlToArray($xml)
{
$xml = simplexml_load_string($xml);
$parsedXml = json_decode(json_encode($xml), true);
return $this->setSubObjectToArray(
$parsedXml,
[
taoQtiTest_models_classes_QtiTestService::XML_TEST_PART,
taoQtiTest_models_classes_QtiTestService::XML_ASSESSMENT_SECTION,
taoQtiTest_models_classes_QtiTestService::XML_ASSESSMENT_ITEM_REF,
]
);
}
/**
* Changes recursively the value of the given sub-keys into array in the given object
*
* @param array $object
* @param array $keys
* @return array
*/
private function setSubObjectToArray($object, $keys)
{
$key = array_shift($keys);
// if the object is an associative array, turn it into an indexed array
if ($object[$key] !== array_values($object[$key])) {
$object[$key] = [$object[$key]];
}
if (count($keys) > 0) {
foreach ($object[$key] as $index => $subObject) {
$object[$key][$index] = $this->setSubObjectToArray($subObject, $keys);
}
}
return $object;
}
/**
* @param QtiRunnerServiceContext $serviceContext
* @return string
*/
private function getTestDefinitionXml(QtiRunnerServiceContext $serviceContext)
{
$privateDirectoryId = explode('|', $serviceContext->getTestCompilationUri())[0];
$directory = $this->getFileStorageService()->getDirectoryById($privateDirectoryId);
$path = $directory->getFile(taoQtiTest_models_classes_QtiTestService::QTI_TEST_DEFINITION_INDEX)->read();
return $directory->getFile($path)->read();
}
/**
* @return tao_models_classes_service_FileStorage
*/
private function getFileStorageService()
{
return $this->getServiceLocator()->get(\tao_models_classes_service_FileStorage::SERVICE_ID);
}
}