/**
* Checks if the raw data's identifier is defined
*
* @param int $index
* @return array Returns the prepared data
*/
protected function _setRawDataIdentifierIfNotSetForIndex($index)
{
$rawData = $this->rawData[$index];
if (!isset($rawData[Constants::DATA_ID_KEY]) || $rawData[Constants::DATA_ID_KEY]) {
$this->rawData[$index] = DocumentUtility::assertDocumentIdentifierOfData($rawData);
}
return $rawData;
}
