双十二分布式事务选购

class OrderService:
    def create_order(self, order_id):
        try:
            # 创建订单
            self.db.create_order(order_id)
            # 扣减库存
            InventoryService().deduct_stock(order_id)
            # 发送通知
            NotificationService().send_notification(order_id)
        except Exception as e:
            # 补偿操作
            self.compensate_order(order_id)

    def compensate_order(self, order_id):
        try:
            InventoryService().refund_stock(order_id)
            NotificationService().cancel_notification(order_id)
        except Exception as e:
            log.error(f"Compensation failed for order {order_id}: {e}")

class InventoryService:
    def deduct_stock(self, order_id):
        # 扣减库存逻辑
        pass

    def refund_stock(self, order_id):
        # 补偿库存逻辑
        pass

class NotificationService:
    def send_notification(self, order_id):
        # 发送通知逻辑
        pass

    def cancel_notification(self, order_id):
        # 取消通知逻辑
        pass