Trait opentelemetry_sdk::trace::SpanProcessor

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pub trait SpanProcessor:
    Send
    + Sync
    + Debug {
    // Required methods
    fn on_start(&self, span: &mut Span, cx: &Context);
    fn on_end(&self, span: SpanData);
    fn force_flush(&self) -> TraceResult<()>;
    fn shutdown(&self) -> TraceResult<()>;

    // Provided method
    fn set_resource(&mut self, _resource: &Resource) { ... }
}

Expand description

SpanProcessor is an interface which allows hooks for span start and end method invocations. The span processors are invoked only when is_recording is true.

Required Methods§

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fn on_start(&self, span: &mut Span, cx: &Context)

on_start is called when a Span is started. This method is called synchronously on the thread that started the span, therefore it should not block or throw exceptions.

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fn on_end(&self, span: SpanData)

on_end is called after a Span is ended (i.e., the end timestamp is already set). This method is called synchronously within the Span::end API, therefore it should not block or throw an exception.

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