mirror of
https://github.com/Nanaloveyuki/BitLogger.git
synced 2026-05-30 15:42:25 +00:00
Nanaloveyuki
83 lines
2.3 KiB
Markdown
83 lines
2.3 KiB
Markdown
---
|
|
name: queue-config-to-json
|
|
group: api
|
|
category: config
|
|
update-time: 20260512
|
|
description: Convert QueueConfig into a JSON value for export, persistence, or generated config tooling.
|
|
key-word:
|
|
- queue
|
|
- config
|
|
- json
|
|
- public
|
|
---
|
|
|
|
## Queue-config-to-json
|
|
|
|
Convert a typed `QueueConfig` into a `JsonValue`. This helper is the structured export path for synchronous queue wrapper configuration when callers want machine-readable config output.
|
|
|
|
### Interface
|
|
|
|
```moonbit
|
|
pub fn queue_config_to_json(queue : QueueConfig) -> @json_parser.JsonValue {}
|
|
```
|
|
|
|
#### input
|
|
|
|
- `queue : QueueConfig` - Queue wrapper configuration created in code or parsed from config text.
|
|
|
|
#### output
|
|
|
|
- `JsonValue` - Structured JSON representation of the queue config.
|
|
|
|
### Explanation
|
|
|
|
Detailed rules explaining key parameters and behaviors
|
|
|
|
- The output includes `max_pending` and `overflow`.
|
|
- Overflow is serialized using the supported config labels such as `DropNewest` and `DropOldest`.
|
|
- This helper is intended for config export rather than runtime queue inspection.
|
|
- The JSON shape matches the queue section accepted by `parse_logger_config_text(...)`.
|
|
|
|
### How to Use
|
|
|
|
Here are some specific examples provided.
|
|
|
|
#### When Need Structured Queue Config Export
|
|
|
|
When queue settings should be embedded into a larger JSON payload:
|
|
```moonbit
|
|
let queue_json = queue_config_to_json(
|
|
QueueConfig::new(64, overflow=QueueOverflowPolicy::DropOldest),
|
|
)
|
|
```
|
|
|
|
In this example, callers receive a reusable JSON value instead of a final string.
|
|
|
|
#### When Need Roundtrip-friendly Config Data
|
|
|
|
When code generates queue policy and later persists it:
|
|
```moonbit
|
|
let value = queue_config_to_json(QueueConfig::new(16))
|
|
```
|
|
|
|
In this example, the exported shape stays aligned with the supported parser schema.
|
|
|
|
### Error Case
|
|
|
|
e.g.:
|
|
- If `max_pending` is very small, the config still serializes successfully even though runtime drops may happen more often.
|
|
|
|
- If callers need direct text output instead of a JSON value, they should use `stringify_queue_config(...)` instead.
|
|
|
|
### Notes
|
|
|
|
Notes are here.
|
|
|
|
1. This helper exports config data, not queue runtime metrics.
|
|
|
|
2. Use this API when downstream code expects `JsonValue`.
|
|
|
|
3. Pair it with `QueueConfig::new(...)` for code-generated config.
|
|
|
|
4. The output is suitable for persistence, testing, and generated configuration flows.
|