Struct TracingObserver 

pub struct TracingObserver;

An Observer that emits one structured tracing event per signal.

Signals that report a safety-integrity problem (Signal::is_safety_signal) are emitted at WARN, everything else at DEBUG: a claim violation or a stale interaction should surface without a filter change, while the ordinary flow of a busy system should not.

The event carries the signal name, the typed labels and, for a latency signal, the measured duration in milliseconds. It never carries text.

use turnframe_core::ids::WorkflowKey;
use turnframe_core::observe::{Observer, Signal, SignalLabels};
use turnframe_telemetry::TracingObserver;

let observer = TracingObserver::new();
observer.observe_labeled(
    &Signal::WorkflowInvariantViolation,
    &SignalLabels::workflow(WorkflowKey::from("trip")).with_error_code("two_open_drafts"),
);

Implementations

impl TracingObserver

pub const fn new() -> Self

Builds the observer. Events go to whichever subscriber the application installed, so there is nothing to configure here.

Trait Implementations

impl Clone for TracingObserver

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TracingObserver

impl Debug for TracingObserver

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TracingObserver

fn default() -> Self

Returns the “default value” for a type.

impl Observer for TracingObserver

fn observe(&self, signal: &Signal)

Observes a signal without labels.

fn observe_labeled(&self, signal: &Signal, labels: &SignalLabels)

Observes a signal with labels. The default drops the labels.

fn observe_duration( &self, signal: &Signal, duration: Duration, labels: &SignalLabels, )

Observes a duration signal (SignalKind::DurationMillis or SignalKind::DurationMicros) with its measured value. The default drops the value and forwards to Observer::observe_labeled.