Struct JsonWriterProgressReporter 

pub struct JsonWriterProgressReporter<W> { /* private fields */ }

Progress reporter that writes JSON metric snapshots to a writer.

One input event can produce multiple JSON lines: one line for each metric counter carried by the event.

Implementations

impl<W> JsonWriterProgressReporter<W>

pub const fn writer(&self) -> &Arc<Mutex<W>>

Returns the shared writer used by this reporter.

Returns

A shared reference to the writer mutex.

impl<W> JsonWriterProgressReporter<W>

where W: Write + Send + 'static,

pub fn new(writer: Arc<Mutex<W>>) -> Self

Creates a reporter from a shared writer.

Parameters

• writer - Shared writer receiving JSON progress output.

Returns

A JSON writer-backed progress reporter.

pub fn from_writer(writer: W) -> Self

Creates a reporter from an owned writer.

Parameters

• writer - Owned writer receiving JSON progress output.

Returns

A JSON writer-backed progress reporter.

Trait Implementations

impl<W> ProgressReporter for JsonWriterProgressReporter<W>

where W: Write + Send + 'static,

fn report(&self, event: &ProgressEvent)

Writes one JSON line for every metric snapshot in the event.

Parameters

• event - Progress event to format and write.

Panics

Recovers the inner writer when the writer mutex is poisoned, and panics only when writing to the configured writer fails.