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BitLogger/docs/api/application-logger.md
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2026-06-13 20:48:22 +08:00

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name, group, category, update-time, description, key-word
name group category update-time description key-word
application-logger api facade 20260613 Application-facing alias for the configured sync runtime logger surface.
application
facade
alias
public

Application-logger

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.

Interface

pub type ApplicationLogger = ConfiguredLogger

output

  • ApplicationLogger - Application-facing name for the configured sync runtime logger shape.

Explanation

Detailed rules explaining key parameters and behaviors

  • This alias does not introduce a new runtime type or wrapper layer.
  • It preserves the same logging, queue, and file helper APIs exposed by ConfiguredLogger.
  • The alias exists to give application boot code a clearer public entry name.
  • Builders such as build_application_logger(...) and parse_and_build_application_logger(...) return this alias.

How to Use

Here are some specific examples provided.

When Need An App-level Name For The Configured Runtime Logger

When application code wants a stable public type name for the configured sync logger:

let logger : ApplicationLogger = build_application_logger(LoggerConfig::new(target="app"))

In this example, the application alias keeps the same underlying runtime logger behavior while presenting an app-facing type name.

When Pass The Configured Logger Through App-level APIs

When top-level boot code or services should expose an application-oriented logger type:

fn start(logger : ApplicationLogger) -> Unit {
  logger.info("started")
}

In this example, callers see the app-facing alias instead of the lower-level ConfiguredLogger name.

Error Case

e.g.:

  • Because this is only an alias, any backend limitations of ConfiguredLogger still apply unchanged.

  • If code needs a narrower public surface than the full configured runtime logger, LibraryLogger is the better facade.

Notes

  1. This alias is about naming and public intent, not a different runtime implementation.

  2. Use build_application_logger(...) or parse_and_build_application_logger(...) for the usual construction paths.