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Nanaloveyuki
82 lines
2.2 KiB
Markdown
82 lines
2.2 KiB
Markdown
---
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name: parse-async-logger-build-config-text
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group: api
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category: async
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update-time: 20260512
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description: Parse combined sync logger and async runtime JSON into a typed async build configuration.
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key-word:
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- async
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- parse
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- config
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- public
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---
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## Parse-async-logger-build-config-text
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Parse JSON text into `AsyncLoggerBuildConfig`. This API validates both the synchronous logger portion and the async queue/runtime portion before any async logger is built.
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### Interface
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```moonbit
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pub fn parse_async_logger_build_config_text(input : String) -> AsyncLoggerBuildConfig raise {}
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```
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#### input
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- `input : String` - JSON text containing `logger` and `async_config` sections.
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#### output
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- `AsyncLoggerBuildConfig` - Typed build config ready for `build_async_logger(...)` or `build_async_text_logger(...)`.
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### Explanation
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Detailed rules explaining key parameters and behaviors
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- The JSON root is split into `logger` and `async_config`.
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- `logger` reuses the same synchronous config schema parsed by `parse_logger_config_text(...)`.
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- `async_config` is parsed through `parse_async_logger_config_text(...)`.
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- This API separates validation from actual async runtime construction.
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### How to Use
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Here are some specific examples provided.
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#### When Need Config-driven Async Bootstrapping
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When both sink config and async runtime config come from JSON:
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```moonbit
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let config = parse_async_logger_build_config_text(raw) catch {
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err => return
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}
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let logger = build_async_logger(config)
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```
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In this example, parsing and runtime construction remain separate and testable.
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#### When Need To Inspect Async Build Config Before Use
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When config should be validated or reviewed before build:
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```moonbit
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let config = parse_async_logger_build_config_text(raw) catch {
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err => return
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}
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println(config.logger.target)
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```
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In this example, parsed sync and async sections can be inspected independently.
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### Error Case
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e.g.:
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- If the root is not an object, parsing fails.
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- If either `logger` or `async_config` contains invalid schema values, parsing fails through the underlying config parsers.
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### Notes
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1. Use this API when async build config is stored as JSON.
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2. Use `AsyncLoggerBuildConfig::new(...)` when assembling config directly in code.
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