Notification Unit WebSocket Push for HTTP Processing Delays
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Solution Overview
Problem
Existing information processing systems face challenges in efficiently notifying users of process status and results, particularly in scenarios where HTTP requests are made for operations like copying, scanning, and printing, as they rely on pull-based communication methods that can lead to delays and inefficiencies.
Innovation Solution
The system incorporates a notification unit that uses a combination of HTTP responses and alternative communication methods, such as WebSocket, to provide push-based notifications, ensuring timely and efficient communication of process status and results to users, regardless of the completion time of the requested process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If pull-based HTTP communication is used to notify process results, then system simplicity is maintained, but notification speed and user experience deteriorate due to delays and inefficiencies
Solution Approach 1:
The notification system is segmented into multiple independent communication channels: HTTP response channel for basic notifications and WebSocket channel for real-time push notifications. This segmentation allows each channel to operate independently with optimized performance characteristics, resolving the contradiction between speed and complexity by distributing functions across separate segments.
Solution Approach 2:
A notification manager acts as an intermediary component that receives process results and intelligently selects the appropriate communication channel (HTTP or WebSocket) based on the specific notification requirements. This mediator abstracts the complexity from the core processing system while enabling fast WebSocket notifications when needed, thus improving notification speed without significantly increasing overall system complexity.
2Reliability
If HTTP response is used for notification, then communication protocol simplicity is maintained, but notification reliability deteriorates when processes take longer than expected
Solution Approach 1:
The system establishes a WebSocket connection in advance before the process completes, enabling the notification manager to push results immediately when available. This preliminary action eliminates the need for users to repeatedly poll for updates and ensures timely notification regardless of process duration, thereby improving reliability without increasing wait time.
Solution Approach 2:
The notification system dynamically adapts its communication method based on process characteristics. For long-running processes, it switches to WebSocket push notifications to maintain reliability and reduce user wait time. For shorter processes, it uses standard HTTP responses. This dynamic adaptation resolves the contradiction by optimizing the communication approach to match the specific notification scenario.
Data Source
AI summary
An information processing apparatus includes a processing unit that performs a process, a controller that performs a control operation to cause the processing unit to perform the process requested by a hypertext transfer protocol (HTTP) request from a display apparatus that displays process results of the process, and a notification unit that notifies the display apparatus of the process results through communication different from an HTTP response responsive to the HTTP request having requested the process to be performed.