<?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); } }