/**
* packItem implementation for QTI
* @inheritdoc
* @see {@link ItemPacker}
* @throws InvalidArgumentException
* @throws common_Exception
*/
public function packItem(core_kernel_classes_Resource $item, $lang = "")
{
$itemPack = null;
$path = $this->getPath($item, $lang);
$content = $this->getItemContent($path);
//use the QtiParser to transform the QTI XML into an assoc array representation
try {
//load content
$qtiParser = new QtiParser($content);
//validate it
$qtiParser->validate();
if (!$qtiParser->isValid()) {
throw new common_Exception('Invalid QTI content : ' . $qtiParser->displayErrors(false));
}
//parse
$qtiItem = $qtiParser->load();
//then build the ItemPack from the parsed data
if (!is_null($qtiItem)) {
$itemPack = new ItemPack(self::$itemType, $qtiItem->toArray());
$itemPack->setAssetEncoders($this->getAssetEncoders());
$assetParser = new AssetParser($qtiItem, $path);
$assetParser->setDeepParsing($this->isNestedResourcesInclusion());
foreach ($assetParser->extract($itemPack) as $type => $assets) {
$itemPack->setAssets($type, $assets, $path);
}
}
} catch (common_Exception $e) {
throw new common_Exception('Unable to pack item ' . $item->getUri() . ' : ' . $e->getMessage());
}
return $itemPack;
}
/**
* @param core_kernel_classes_Resource $item the item to pack
* @param string $lang
* @param Item $qtiItem
* @param \oat\oatbox\filesystem\Directory $directory
* @return ItemPack $itemPack
* @throws common_Exception
*/
public function packQtiItem($item, $lang, $qtiItem, Directory $directory)
{
//use the QtiParser to transform the QTI XML into an assoc array representation
try {
//build the ItemPack from the parsed data
if ($this->replaceXinclude) {
$resolver = new ItemMediaResolver($item, $lang);
$xincludeLoader = new XIncludeLoader($qtiItem, $resolver);
$xincludeLoader->load(true);
}
$itemPack = new ItemPack(self::$itemType, $qtiItem->toArray());
$itemPack->setAssetEncoders($this->getAssetEncoders());
$assetParser = new AssetParser($qtiItem, $directory);
$assetParser->setDeepParsing($this->isNestedResourcesInclusion());
$assetParser->setGetXinclude(!$this->replaceXinclude);
$storageDirectory = new \tao_models_classes_service_StorageDirectory($item->getUri(), $directory->getFileSystemId(), $directory->getPrefix() . '/' . $lang);
$storageDirectory->setServiceLocator($directory->getServiceLocator());
foreach ($assetParser->extract($itemPack) as $type => $assets) {
$resolver = new ItemMediaResolver($item, $lang);
foreach ($assets as &$asset) {
$mediaAsset = $resolver->resolve($asset);
$mediaSource = $mediaAsset->getMediaSource();
$asset = $mediaSource->getBaseName($mediaAsset->getMediaIdentifier());
}
$itemPack->setAssets($type, $assets, $storageDirectory);
}
} catch (common_Exception $e) {
throw new common_Exception('Unable to pack item ' . $item->getUri() . ' : ' . $e->getMessage());
}
return $itemPack;
}
