/** * Short description of method takeOverFrom * * @access public * @author Joel Bout, <*****@*****.**> * @param ResponseProcessing responseProcessing * @param Item item * @return oat\taoQtiItem\model\qti\response\Composite */ public static function takeOverFrom(ResponseProcessing $responseProcessing, Item $item) { $returnValue = null; if ($responseProcessing instanceof static) { // already good $returnValue = $responseProcessing; } elseif ($responseProcessing instanceof Template) { // IMS Template $rp = new Summation($item, 'SCORE'); foreach ($item->getInteractions() as $interaction) { $response = $interaction->getResponse(); try { $irp = IrpTemplate::createByTemplate($responseProcessing->getUri(), $response, $item); } catch (Exception $e) { throw new TakeoverFailedException(); } $rp->add($irp, $item); } $returnValue = $rp; } elseif ($responseProcessing instanceof TemplatesDriven) { // TemplateDriven $rp = new Summation($item, 'SCORE'); foreach ($item->getInteractions() as $interaction) { $response = $interaction->getResponse(); try { $irp = IrpTemplate::createByTemplate($responseProcessing->getTemplate($response), $response, $item); } catch (Exception $e) { throw new TakeoverFailedException(); } $rp->add($irp, $item); } $returnValue = $rp; } else { common_Logger::d('Composite ResponseProcessing can not takeover from ' . get_class($responseProcessing) . ' yet'); throw new TakeoverFailedException(); } common_Logger::i('Converted to Composite', array('TAOITEMS', 'QTI')); return $returnValue; }
/** * Short description of method buildCompositeResponseProcessing * * @access public * @author Joel Bout, <*****@*****.**> * @param DOMElement data * @param Item item * @return oat\taoQtiItem\model\qti\response\ResponseProcessing */ protected function buildCompositeResponseProcessing(DOMElement $data, Item $item) { $returnValue = null; // STRONGLY simplified summation detection $patternCorrectTAO = '/responseCondition [count(./*) = 1 ] [name(./*[1]) = "responseIf" ] [count(./responseIf/*) = 2 ] [name(./responseIf/*[1]) = "match" ] [name(./responseIf/match/*[1]) = "variable" ] [name(./responseIf/match/*[2]) = "correct" ] [name(./responseIf/*[2]) = "setOutcomeValue" ] [count(./responseIf/setOutcomeValue/*) = 1 ] [name(./responseIf/setOutcomeValue/*[1]) = "baseValue"]'; $patternMapTAO = '/responseCondition [count(./*) = 1 ] [name(./*[1]) = "responseIf" ] [count(./responseIf/*) = 2 ] [name(./responseIf/*[1]) = "not" ] [count(./responseIf/not/*) = 1 ] [name(./responseIf/not/*[1]) = "isNull" ] [count(./responseIf/not/isNull/*) = 1 ] [name(./responseIf/not/isNull/*[1]) = "variable" ] [name(./responseIf/*[2]) = "setOutcomeValue" ] [count(./responseIf/setOutcomeValue/*) = 1 ] [name(./responseIf/setOutcomeValue/*[1]) = "mapResponse"]'; $patternMapPointTAO = '/responseCondition [count(./*) = 1 ] [name(./*[1]) = "responseIf" ] [count(./responseIf/*) = 2 ] [name(./responseIf/*[1]) = "not" ] [count(./responseIf/not/*) = 1 ] [name(./responseIf/not/*[1]) = "isNull" ] [count(./responseIf/not/isNull/*) = 1 ] [name(./responseIf/not/isNull/*[1]) = "variable" ] [name(./responseIf/*[2]) = "setOutcomeValue" ] [count(./responseIf/setOutcomeValue/*) = 1 ] [name(./responseIf/setOutcomeValue/*[1]) = "mapResponsePoint"]'; $patternNoneTAO = '/responseCondition [count(./*) = 1 ] [name(./*[1]) = "responseIf" ] [count(./responseIf/*) = 2 ] [name(./responseIf/*[1]) = "isNull" ] [count(./responseIf/isNull/*) = 1 ] [name(./responseIf/isNull/*[1]) = "variable" ] [name(./responseIf/*[2]) = "setOutcomeValue" ] [count(./responseIf/setOutcomeValue/*) = 1 ] [name(./responseIf/setOutcomeValue/*[1]) = "baseValue"]'; $possibleSummation = '/setOutcomeValue [count(./*) = 1 ] [name(./*[1]) = "sum" ]'; $irps = array(); $composition = null; $data = simplexml_import_dom($data); foreach ($data as $responseRule) { if (!is_null($composition)) { throw new UnexpectedResponseProcessing('Not composite, rules after composition'); } $subtree = new SimpleXMLElement($responseRule->asXML()); if (count($subtree->xpath($patternCorrectTAO)) > 0) { $responseIdentifier = (string) $subtree->responseIf->match->variable[0]['identifier']; $irps[$responseIdentifier] = array('class' => 'MatchCorrectTemplate', 'outcome' => (string) $subtree->responseIf->setOutcomeValue[0]['identifier']); } elseif (count($subtree->xpath($patternMapTAO)) > 0) { $responseIdentifier = (string) $subtree->responseIf->not->isNull->variable[0]['identifier']; $irps[$responseIdentifier] = array('class' => 'MapResponseTemplate', 'outcome' => (string) $subtree->responseIf->setOutcomeValue[0]['identifier']); } elseif (count($subtree->xpath($patternMapPointTAO)) > 0) { $responseIdentifier = (string) $subtree->responseIf->not->isNull->variable[0]['identifier']; $irps[$responseIdentifier] = array('class' => 'MapResponsePointTemplate', 'outcome' => (string) $subtree->responseIf->setOutcomeValue[0]['identifier']); } elseif (count($subtree->xpath($patternNoneTAO)) > 0) { $responseIdentifier = (string) $subtree->responseIf->isNull->variable[0]['identifier']; $irps[$responseIdentifier] = array('class' => 'None', 'outcome' => (string) $subtree->responseIf->setOutcomeValue[0]['identifier'], 'default' => (string) $subtree->responseIf->setOutcomeValue[0]->baseValue[0]); } elseif (count($subtree->xpath($possibleSummation)) > 0) { $composition = 'Summation'; $outcomesUsed = array(); foreach ($subtree->xpath('/setOutcomeValue/sum/variable') as $var) { $outcomesUsed[] = (string) $var[0]['identifier']; } } else { throw new UnexpectedResponseProcessing('Not composite, unknown rule'); } } if (is_null($composition)) { throw new UnexpectedResponseProcessing('Not composit, Composition rule missing'); } $responses = array(); foreach ($item->getInteractions() as $interaction) { $responses[$interaction->getResponse()->getIdentifier()] = $interaction->getResponse(); } if (count(array_diff(array_keys($irps), array_keys($responses))) > 0) { throw new UnexpectedResponseProcessing('Not composit, no responses for rules: ' . implode(',', array_diff(array_keys($irps), array_keys($responses)))); } if (count(array_diff(array_keys($responses), array_keys($irps))) > 0) { common_Logger::w('Some responses have no processing'); throw new UnexpectedResponseProcessing('Not composit, no support for unmatched variables yet'); } //assuming sum is correct $compositonRP = new Summation($item); foreach ($responses as $id => $response) { $outcome = null; foreach ($item->getOutcomes() as $possibleOutcome) { if ($possibleOutcome->getIdentifier() == $irps[$id]['outcome']) { $outcome = $possibleOutcome; break; } } if (is_null($outcome)) { throw new ParsingException('Undeclared Outcome in ResponseProcessing'); } $classname = '\\oat\\taoQtiItem\\model\\qti\\response\\interactionResponseProcessing\\' . $irps[$id]['class']; $irp = new $classname($response, $outcome); if ($irp instanceof \oat\taoQtiItem\model\qti\response\interactionResponseProcessing\None && isset($irps[$id]['default'])) { $irp->setDefaultValue($irps[$id]['default']); } $compositonRP->add($irp); } $returnValue = $compositonRP; return $returnValue; }