RestException::initFromException

static function initFromException(Exception $e)
{
	$ex = null;

	if (is_a($e, 'BitrixMainDBSqlException'))
	{
		$ex = new self(
			"SQL query error!",
			self::ERROR_CORE,
			CRestServer::STATUS_INTERNAL,
			$e->getPrevious()
		);
	}
	elseif(is_a($e, 'BitrixMainSystemException'))
	{
		if(is_a($e, 'BitrixMainArgumentException'))
		{
			$ex = new self(
				$e->getMessage(),
				self::ERROR_ARGUMENT,
				CRestServer::STATUS_WRONG_REQUEST,
				$e->getPrevious()
			);

			$ex->setAdditional(array(
				"argument" => $e->getParameter(),
			));
		}
	}

	if(!$ex)
	{
		$ex = new self(
			$e->getMessage(),
			$e->getCode() ? $e->getCode() : self::ERROR_CORE,
			CRestServer::STATUS_WRONG_REQUEST,
			$e->getPrevious()
		);
	}

	return $ex;
}