Structured logging

Requirement

Structured logging should be added to the SDK to support tracing and debugging by developers and operators. Ideally, these logs integrate naturally with the logging system used by the application host.

Proposal

The java.util.logging.Logger class can be used as the main abstraction for logging, similar to the ILogger interface in .NET.

Other considerations

Azure Functions has a particular way of doing logging and tracing for Java-based function apps. Ideally any design we consider should integrate nicely with external runtime hosts (especially Azure Functions). Azure Functions code can call context.getLogger() to get an instance of java.util.logging.Logger to use for logging.

https://docs.microsoft.com/en-us/azure/azure-functions/functions-reference-java?tabs=bash%2Cconsumption#logger

首先閱讀結構化記錄需求、java.util.logging.Logger 提案以及連結的 Azure Functions 記錄指南。定義 SDK 記錄應如何與主機提供的記錄器整合，尤其是 context.getLogger()，並將支援跨外部執行環境進行 tracing 和 debugging 的設計與實作視為完成。