Add file state JSON export helpers

This commit is contained in:
Nanaloveyuki
2026-05-10 13:05:06 +08:00
parent 41c9ca3eb8
commit d209b7d618
7 changed files with 220 additions and 23 deletions
+20
View File
@@ -206,6 +206,25 @@ if native_files_supported() {
```
</details>
<details><summary>file runtime state dump 示例</summary>
```moonbit
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(kind=SinkKind::File, path="bitlogger-runtime.log"),
queue=Some(QueueConfig::new(16)),
),
)
logger.info("queued hello")
match logger.file_runtime_state() {
Some(snapshot) => println(stringify_runtime_file_state(snapshot, pretty=true))
None => ()
}
```
</details>
## 📂 仓库结构
- `bitlogger/`MoonBit 库 package,本体实现、测试与 Mooncake README
@@ -230,6 +249,7 @@ if native_files_supported() {
- `file_sink(...)` 也支持 `set_auto_flush(...)``set_rotation(...)``clear_rotation()`,可在运行期调整基础写出策略
- `build_logger(...)` 产出的 `ConfiguredLogger` 同样提供 `file_reopen()``file_reopen_with_current_policy()``file_reopen_append()``file_reopen_truncate()``file_flush()``file_close()``file_append_mode()``file_path()``file_auto_flush()``file_rotation_enabled()``file_rotation_config()``file_state()`,以及 `file_set_append_mode(...)``file_set_auto_flush(...)``file_set_rotation(...)``file_clear_rotation()` 与对应 file failure 计数访问器,便于配置式接入后继续运维控制
- `ConfiguredLogger` 还提供 `file_runtime_state()`,可在 file sink 外层包了 queue 时同时读取底层 file 快照、是否 queue 包装、当前 pending 与 dropped 计数
- `file_sink_state_to_json(...)``stringify_file_sink_state(...)``runtime_file_state_to_json(...)``stringify_runtime_file_state(...)` 可直接把 file / queued-file 快照导出为 JSON,便于排障或上报
- `sink.text_formatter.template` 当前支持固定 token`{timestamp}``{timestamp_ms}``{level}``{target}``{message}``{fields}`
- 当前可由配置直接组装的 sink 类型:`console``json_console``text_console``file`
- `queue` 会作为显式包装层附着在最终 sink 外侧;这仍然是同步 drain 模型,不是 async runtime
+61
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@@ -240,6 +240,67 @@ test "configured logger exposes file sink observability helpers" {
ignore(logger.close())
}
test "file state json helpers stringify stable snapshots" {
let plain = file_sink_state_to_json(
FileSinkState::new(
"demo.log",
available=true,
append=false,
auto_flush=true,
rotation=Some(file_rotation(64, max_backups=2)),
open_failures=1,
write_failures=2,
flush_failures=3,
rotation_failures=4,
),
)
inspect(
@json_parser.stringify(plain),
content="{\"append\":false,\"auto_flush\":true,\"available\":true,\"flush_failures\":3,\"open_failures\":1,\"path\":\"demo.log\",\"rotation\":{\"max_backups\":2,\"max_bytes\":64},\"rotation_failures\":4,\"write_failures\":2}",
)
inspect(
stringify_file_sink_state(
FileSinkState::new(
"plain.log",
available=false,
append=true,
auto_flush=false,
rotation=None,
open_failures=0,
write_failures=0,
flush_failures=0,
rotation_failures=0,
),
),
content="{\"append\":true,\"auto_flush\":false,\"available\":false,\"flush_failures\":0,\"open_failures\":0,\"path\":\"plain.log\",\"rotation\":null,\"rotation_failures\":0,\"write_failures\":0}",
)
}
test "runtime file state json helpers stringify queue snapshots" {
let json = stringify_runtime_file_state(
RuntimeFileState::new(
FileSinkState::new(
"queue.log",
available=true,
append=true,
auto_flush=false,
rotation=None,
open_failures=0,
write_failures=1,
flush_failures=2,
rotation_failures=3,
),
queued=true,
pending_count=7,
dropped_count=5,
),
)
inspect(
json,
content="{\"dropped_count\":5,\"file\":{\"append\":true,\"auto_flush\":false,\"available\":true,\"flush_failures\":2,\"open_failures\":0,\"path\":\"queue.log\",\"rotation\":null,\"rotation_failures\":3,\"write_failures\":1},\"pending_count\":7,\"queued\":true}",
)
}
test "configured logger reports disabled rotation when file sink has none" {
let logger = build_logger(
LoggerConfig::new(
+17
View File
@@ -215,6 +215,22 @@ test {
}
```
```mbt check
test {
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(kind=SinkKind::File, path="bitlogger-runtime.log"),
queue=Some(QueueConfig::new(16)),
),
)
logger.info("queued hello")
match logger.file_runtime_state() {
Some(snapshot) => println(stringify_runtime_file_state(snapshot, pretty=true))
None => ()
}
}
```
## File Rotation / 文件轮转
- basic rotation is size-based / 当前基础轮转为按文件大小触发
@@ -226,6 +242,7 @@ test {
- `path()` and `auto_flush_enabled()` expose core file sink policy state / `path()` 与 `auto_flush_enabled()` 可读取 file sink 的基础策略状态
- `rotation_enabled()` and `rotation_config()` expose whether rotation is active and which settings are currently applied / `rotation_enabled()` 与 `rotation_config()` 可读取 rotation 是否启用及当前配置参数
- `state()` exposes a single file-sink snapshot including path, availability, append policy, auto-flush, rotation config, and failure counters / `state()` 可一次性读取包含 path、availability、append、auto-flush、rotation 配置与失败计数的 file sink 快照
- `file_sink_state_to_json(...)` / `stringify_file_sink_state(...)` and `runtime_file_state_to_json(...)` / `stringify_runtime_file_state(...)` export snapshots as JSON / `file_sink_state_to_json(...)` / `stringify_file_sink_state(...)` 与 `runtime_file_state_to_json(...)` / `stringify_runtime_file_state(...)` 可将快照直接导出为 JSON
- `set_auto_flush(...)`, `set_rotation(...)`, and `clear_rotation()` allow runtime tuning of core file sink policies / `set_auto_flush(...)`、`set_rotation(...)`、`clear_rotation()` 可在运行期调整 file sink 的基础策略
- `open_failures()`、`write_failures()`、`flush_failures()`、`rotation_failures()` expose basic sink health counters / `open_failures()`、`write_failures()`、`flush_failures()`、`rotation_failures()` 可用于观察基础 sink 健康状态
- `ConfiguredLogger` also forwards file reopen, flush, close, append-mode, path, auto-flush, rotation-config, state snapshot, append setter, policy setter, and failure-counter helpers for config-built file sinks / `ConfiguredLogger` 也会为配置生成的 file sink 转发 reopen、flush、close、append-mode、path、auto-flush、rotation 配置、state 快照、append setter、策略 setter 与失败计数访问器
+78 -23
View File
@@ -144,6 +144,64 @@ pub struct RuntimeFileState {
dropped_count : Int
}
pub fn RuntimeFileState::new(
file : FileSinkState,
queued~ : Bool = false,
pending_count~ : Int = 0,
dropped_count~ : Int = 0,
) -> RuntimeFileState {
{ file, queued, pending_count, dropped_count }
}
fn file_sink_state_to_json_value(state : FileSinkState) -> @json_parser.JsonValue {
let obj : Map[String, @json_parser.JsonValue] = {
"path": @json_parser.JsonValue::String(state.path),
"available": @json_parser.JsonValue::Bool(state.available),
"append": @json_parser.JsonValue::Bool(state.append),
"auto_flush": @json_parser.JsonValue::Bool(state.auto_flush),
"open_failures": @json_parser.JsonValue::Number(state.open_failures.to_double()),
"write_failures": @json_parser.JsonValue::Number(state.write_failures.to_double()),
"flush_failures": @json_parser.JsonValue::Number(state.flush_failures.to_double()),
"rotation_failures": @json_parser.JsonValue::Number(state.rotation_failures.to_double()),
}
match state.rotation {
None => obj["rotation"] = @json_parser.JsonValue::Null
Some(rotation) => obj["rotation"] = file_rotation_config_to_json(rotation)
}
@json_parser.JsonValue::Object(obj)
}
pub fn file_sink_state_to_json(state : FileSinkState) -> @json_parser.JsonValue {
file_sink_state_to_json_value(state)
}
pub fn stringify_file_sink_state(state : FileSinkState, pretty~ : Bool = false) -> String {
let value = file_sink_state_to_json_value(state)
if pretty {
@json_parser.stringify_pretty(value, 2)
} else {
@json_parser.stringify(value)
}
}
pub fn runtime_file_state_to_json(state : RuntimeFileState) -> @json_parser.JsonValue {
@json_parser.JsonValue::Object({
"file": file_sink_state_to_json_value(state.file),
"queued": @json_parser.JsonValue::Bool(state.queued),
"pending_count": @json_parser.JsonValue::Number(state.pending_count.to_double()),
"dropped_count": @json_parser.JsonValue::Number(state.dropped_count.to_double()),
})
}
pub fn stringify_runtime_file_state(state : RuntimeFileState, pretty~ : Bool = false) -> String {
let value = runtime_file_state_to_json(state)
if pretty {
@json_parser.stringify_pretty(value, 2)
} else {
@json_parser.stringify(value)
}
}
pub impl Sink for RuntimeSink with write(self, rec) {
match self {
Console(sink) => sink.write(rec)
@@ -416,34 +474,31 @@ pub fn RuntimeSink::file_state(self : RuntimeSink) -> FileSinkState {
match self {
File(sink) => sink.state()
QueuedFile(sink) => sink.sink.state()
_ => {
path: "",
available: false,
append: false,
auto_flush: false,
rotation: None,
open_failures: 0,
write_failures: 0,
flush_failures: 0,
rotation_failures: 0,
}
_ => FileSinkState::new(
"",
available=false,
append=false,
auto_flush=false,
rotation=None,
open_failures=0,
write_failures=0,
flush_failures=0,
rotation_failures=0,
)
}
}
pub fn RuntimeSink::file_runtime_state(self : RuntimeSink) -> RuntimeFileState? {
match self {
File(sink) => Some({
file: sink.state(),
queued: false,
pending_count: 0,
dropped_count: 0,
})
QueuedFile(sink) => Some({
file: sink.sink.state(),
queued: true,
pending_count: sink.pending_count(),
dropped_count: sink.dropped_count(),
})
File(sink) => Some(RuntimeFileState::new(sink.state()))
QueuedFile(sink) => Some(
RuntimeFileState::new(
sink.sink.state(),
queued=true,
pending_count=sink.pending_count(),
dropped_count=sink.dropped_count(),
),
)
_ => None
}
}
+24
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@@ -74,6 +74,30 @@ pub struct FileSinkState {
rotation_failures : Int
}
pub fn FileSinkState::new(
path : String,
available~ : Bool = false,
append~ : Bool = true,
auto_flush~ : Bool = true,
rotation~ : FileRotation? = None,
open_failures~ : Int = 0,
write_failures~ : Int = 0,
flush_failures~ : Int = 0,
rotation_failures~ : Int = 0,
) -> FileSinkState {
{
path,
available,
append,
auto_flush,
rotation,
open_failures,
write_failures,
flush_failures,
rotation_failures,
}
}
pub fn file_rotation(max_bytes : Int, max_backups~ : Int = 1) -> FileRotation {
{
max_bytes: if max_bytes <= 0 { 1 } else { max_bytes },
+19
View File
@@ -191,6 +191,24 @@ if native_files_supported() {
}
```
File runtime state dump:
```moonbit
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(kind=SinkKind::File, path="bitlogger-runtime.log"),
queue=Some(QueueConfig::new(16)),
),
)
logger.info("queued hello")
match logger.file_runtime_state() {
Some(snapshot) => println(stringify_runtime_file_state(snapshot, pretty=true))
None => ()
}
```
## Repository Layout
- `bitlogger/`: MoonBit library package, tests, and Mooncake package README
@@ -215,6 +233,7 @@ if native_files_supported() {
- `file_sink(...)` also supports `set_auto_flush(...)`, `set_rotation(...)`, and `clear_rotation()` for runtime policy updates.
- `ConfiguredLogger` built through `build_logger(...)` also exposes `file_reopen()`, `file_reopen_with_current_policy()`, `file_reopen_append()`, `file_reopen_truncate()`, `file_flush()`, `file_close()`, `file_append_mode()`, `file_path()`, `file_auto_flush()`, `file_rotation_enabled()`, `file_rotation_config()`, `file_state()`, plus `file_set_append_mode(...)`, `file_set_auto_flush(...)`, `file_set_rotation(...)`, `file_clear_rotation()`, and the corresponding file failure counters, so config-driven file logging keeps a usable control surface.
- `ConfiguredLogger` also exposes `file_runtime_state()` so queued file loggers can report both the underlying file snapshot and the outer queue backlog/drop state in one read.
- `file_sink_state_to_json(...)`, `stringify_file_sink_state(...)`, `runtime_file_state_to_json(...)`, and `stringify_runtime_file_state(...)` can export file and queued-file snapshots directly as JSON for diagnostics or reporting.
- `sink.text_formatter.template` currently supports fixed tokens: `{timestamp}`, `{timestamp_ms}`, `{level}`, `{target}`, `{message}`, and `{fields}`.
- Config-driven sink assembly currently supports `console`, `json_console`, `text_console`, and `file`.
- `queue` remains a synchronous bounded wrapper around the final sink, not an async runtime.
+1
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@@ -41,6 +41,7 @@ version 0.3.0
- feat: add `reopen_append()` / `reopen_truncate()` and configured-logger forwarding helpers so common append-vs-truncate reopen flows do not need raw `Some(true/false)` calls
- feat: add `FileSinkState`, `FileSink::state()`, and `file_state()` helpers so file-sink runtime policy and failure counters can be read as one snapshot
- feat: add `RuntimeFileState` and `file_runtime_state()` so config-built queued file sinks can expose outer queue backlog/drop state together with inner file state
- feat: add JSON export helpers for `FileSinkState` and `RuntimeFileState` so runtime file snapshots can be dumped directly for diagnostics
- feat: add `SplitSink`, `split_sink(...)`, and `split_by_level(...)` for routing records into different sinks by predicate or level
- feat: add `Logger::bind(...)` as an ergonomic context-binding alias and `fields(...)` helper for tuple-based field construction