Inventory::__construct

public function __construct($params)
{
	if(!isset($params["SITE_ID"]) || $params["SITE_ID"] == '')
		throw new ArgumentNullException("SITE_ID");

	$ebay = BitrixSaleTradingPlatformEbayEbay::getInstance();
	$settings = $ebay->getSettings();

	if(!empty($settings[$params["SITE_ID"]]['MAX_PRODUCT_QUANTITY']))
		$this->maxProductQuantity = (float)$settings[$params["SITE_ID"]]['MAX_PRODUCT_QUANTITY'];
}