/**
* Validate cost price and get cost line item data array for a valid cost.
*
* @param null|oxPrice $mPrice
* @param int $iLineItem
* @param string $sCost
*
* @return array
*/
protected function _validateCostPriceAndGetItsData($mPrice, $iLineItem, $sCost)
{
if (empty($mPrice) or !$mPrice instanceof oxPrice or !$mPrice->getPrice()) {
return array();
}
return $aItemData = (array) $this->_getCostSummary($iLineItem, $sCost, $mPrice);
}