protected function _validateCostPriceAndGetItsData( $mPrice, $iLineItem, $sCost )
    {
        if ( empty( $mPrice ) or !is_object( $mPrice ) or !$mPrice->getPrice() ) {
            return array();
        }

        return $aItemData = (array) $this->_getCostSummary( $iLineItem, $sCost, $mPrice );
    }