75 lines
2.5 KiB
PHP
75 lines
2.5 KiB
PHP
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<?php
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2019 (original work) Open Assessment Technologies SA;
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*/
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namespace oat\taoQtiTestPreviewer\models;
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use oat\oatbox\service\ConfigurableService;
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use qtism\data\storage\xml\XmlDocument;
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use qtism\runtime\common\State;
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use qtism\runtime\common\Variable;
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use qtism\runtime\tests\AssessmentItemSession;
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use qtism\runtime\tests\AssessmentItemSessionException;
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use qtism\runtime\tests\SessionManager;
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use \RuntimeException;
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use taoQtiCommon_helpers_ResultTransmissionException;
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/**
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* Class ItemSessionService
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* Manage item session, validate response
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*/
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class ItemSessionService extends ConfigurableService
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{
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/**
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* @param XmlDocument $qtiXmlDoc
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* @param Variable[] $variables
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* @return AssessmentItemSession
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*/
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public function getItemSession($qtiXmlDoc, $variables)
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{
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$itemSession = $this->getItemSessionSubject($qtiXmlDoc);
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try {
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$itemSession->beginAttempt();
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$itemSession->endAttempt(new State($variables));
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} catch (AssessmentItemSessionException $e) {
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$msg = 'An error occurred while processing the responses.';
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throw new RuntimeException($msg, 0, $e);
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} catch (taoQtiCommon_helpers_ResultTransmissionException $e) {
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$msg = 'An error occurred while transmitting a result to the target Result Server.';
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throw new RuntimeException($msg, 0, $e);
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}
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return $itemSession;
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}
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/**
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* @param XmlDocument $qtiXmlDoc
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* @return AssessmentItemSession
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*/
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private function getItemSessionSubject($qtiXmlDoc)
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{
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$sessionManager = new SessionManager();
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$itemSession = new AssessmentItemSession($qtiXmlDoc->getDocumentComponent(), $sessionManager);
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$itemSession->beginItemSession();
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return $itemSession;
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}
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}
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