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Nanaloveyuki
73 lines
2.3 KiB
Markdown
73 lines
2.3 KiB
Markdown
---
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name: application-logger
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group: api
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category: facade
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update-time: 20260613
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description: Application-facing alias for the configured sync runtime logger surface.
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key-word:
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- application
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- facade
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- alias
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- public
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---
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## Application-logger
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`ApplicationLogger` is the application-facing sync logger alias. It currently maps directly to `ConfiguredLogger` and keeps the same runtime helper surface for sync logging, queue inspection, and file controls.
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### Interface
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```moonbit
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pub type ApplicationLogger = ConfiguredLogger
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```
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#### output
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- `ApplicationLogger` - Application-facing name for the configured sync runtime logger shape.
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### Explanation
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Detailed rules explaining key parameters and behaviors
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- This alias does not introduce a new runtime type or wrapper layer.
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- It preserves the same logging, queue, and file helper APIs exposed by `ConfiguredLogger`.
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- The alias exists to give application boot code a clearer public entry name.
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- Builders such as `build_application_logger(...)` and `parse_and_build_application_logger(...)` return this alias.
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### How to Use
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Here are some specific examples provided.
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#### When Need An App-level Name For The Configured Runtime Logger
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When application code wants a stable public type name for the configured sync logger:
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```moonbit
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let logger : ApplicationLogger = build_application_logger(LoggerConfig::new(target="app"))
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```
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In this example, the application alias keeps the same underlying runtime logger behavior while presenting an app-facing type name.
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#### When Pass The Configured Logger Through App-level APIs
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When top-level boot code or services should expose an application-oriented logger type:
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```moonbit
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fn start(logger : ApplicationLogger) -> Unit {
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logger.info("started")
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}
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```
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In this example, callers see the app-facing alias instead of the lower-level `ConfiguredLogger` name.
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### Error Case
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e.g.:
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- Because this is only an alias, any backend limitations of `ConfiguredLogger` still apply unchanged.
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- If code needs a narrower public surface than the full configured runtime logger, `LibraryLogger` is the better facade.
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### Notes
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1. This alias is about naming and public intent, not a different runtime implementation.
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2. Use `build_application_logger(...)` or `parse_and_build_application_logger(...)` for the usual construction paths.
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