/**
* Gets the test session for a particular deliveryExecution
*
* @param DeliveryExecution $deliveryExecution
* @return \qtism\runtime\tests\AssessmentTestSession
* @throws \common_exception_Error
* @throws \common_exception_MissingParameter
*/
public function getTestSession(DeliveryExecution $deliveryExecution)
{
if (!isset($this->cache[$deliveryExecution->getIdentifier()]['session'])) {
$resultServer = \taoResultServer_models_classes_ResultServerStateFull::singleton();
$compiledDelivery = $deliveryExecution->getDelivery();
$inputParameters = $this->getRuntimeInputParameters($deliveryExecution);
$testDefinition = \taoQtiTest_helpers_Utils::getTestDefinition($inputParameters['QtiTestCompilation']);
$testResource = new \core_kernel_classes_Resource($inputParameters['QtiTestDefinition']);
$sessionManager = new \taoQtiTest_helpers_SessionManager($resultServer, $testResource);
$userId = $deliveryExecution->getUserIdentifier();
$qtiStorage = new \taoQtiTest_helpers_TestSessionStorage($sessionManager, new BinaryAssessmentTestSeeker($testDefinition), $userId);
$sessionId = $deliveryExecution->getIdentifier();
if ($qtiStorage->exists($sessionId)) {
$session = $qtiStorage->retrieve($testDefinition, $sessionId);
if ($session instanceof UserUriAware) {
$session->setUserUri($userId);
}
$resultServerUri = $compiledDelivery->getOnePropertyValue(new \core_kernel_classes_Property(TAO_DELIVERY_RESULTSERVER_PROP));
$resultServerObject = new \taoResultServer_models_classes_ResultServer($resultServerUri, array());
$resultServer->setValue('resultServerUri', $resultServerUri->getUri());
$resultServer->setValue('resultServerObject', array($resultServerUri->getUri() => $resultServerObject));
$resultServer->setValue('resultServer_deliveryResultIdentifier', $deliveryExecution->getIdentifier());
} else {
$session = null;
}
$this->cache[$deliveryExecution->getIdentifier()] = ['session' => $session, 'storage' => $qtiStorage];
}
return $this->cache[$deliveryExecution->getIdentifier()]['session'];
}
/**
* Action to finish test attempts where the maximum time limit has been reached.
* To end user will be sent array that contains id's of finished session.
*/
public function endExpiredTests()
{
$started = \taoDelivery_models_classes_DeliveryServerService::singleton()->getResumableDeliveries();
$resultServer = \taoResultServer_models_classes_ResultServerStateFull::singleton();
$result = array();
foreach ($started as $deliveryExecution) {
$compiledDelivery = $deliveryExecution->getDelivery();
$runtime = \taoDelivery_models_classes_DeliveryAssemblyService::singleton()->getRuntime($compiledDelivery);
$inputParameters = \tao_models_classes_service_ServiceCallHelper::getInputValues($runtime, array());
$testDefinition = \taoQtiTest_helpers_Utils::getTestDefinition($inputParameters['QtiTestCompilation']);
$testResource = new \core_kernel_classes_Resource($inputParameters['QtiTestDefinition']);
$subjectProp = new \core_kernel_classes_Property(PROPERTY_DELVIERYEXECUTION_SUBJECT);
$delvieryExecutionSubject = $deliveryExecution->getOnePropertyValue($subjectProp);
$sessionManager = new \taoQtiTest_helpers_SessionManager($resultServer, $testResource);
$qtiStorage = new \taoQtiTest_helpers_TestSessionStorage($sessionManager, new BinaryAssessmentTestSeeker($testDefinition), $delvieryExecutionSubject->getUri());
$session = $qtiStorage->retrieve($testDefinition, $deliveryExecution->getUri());
$resultServerUri = $compiledDelivery->getOnePropertyValue(new \core_kernel_classes_Property(TAO_DELIVERY_RESULTSERVER_PROP));
$resultServerObject = new \taoResultServer_models_classes_ResultServer($resultServerUri, array());
$resultServer->setValue('resultServerUri', $resultServerUri->getUri());
$resultServer->setValue('resultServerObject', array($resultServerUri->getUri() => $resultServerObject));
$resultServer->setValue('resultServer_deliveryResultIdentifier', $deliveryExecution->getUri());
if ($session->isRunning() === false) {
continue;
}
try {
$session->checkTimeLimits(false, false, false);
} catch (AssessmentTestSessionException $e) {
if (AssessmentTestSessionException::ASSESSMENT_TEST_DURATION_OVERFLOW) {
$testSessionMetaData = new TestSessionMetaData($session);
$testSessionMetaData->save(array('TEST' => array('TEST_EXIT_CODE' => TestSessionMetaData::TEST_CODE_INCOMPLETE), 'SECTION' => array('SECTION_EXIT_CODE' => TestSessionMetaData::SECTION_CODE_TIMEOUT)));
$session->endTestSession();
$deliveryExecution->setState(INSTANCE_DELIVERYEXEC_FINISHED);
\common_Logger::i("Expired test session {$session->getSessionId()} has finished.");
$result[] = $session->getSessionId();
}
}
}
echo json_encode($result);
}