rama::telemetry::opentelemetry::sdk::propagation

Struct TraceContextPropagator

pub struct TraceContextPropagator { /* private fields */ }
Expand description

Propagates SpanContexts in W3C TraceContext format under traceparent and tracestate header.

The traceparent header represents the incoming request in a tracing system in a common format, understood by all vendors. Here’s an example of a traceparent header.

traceparent: 00-0af7651916cd43dd8448eb211c80319c-b7ad6b7169203331-01

The traceparent HTTP header field identifies the incoming request in a tracing system. It has four fields:

  • version
  • trace-id
  • parent-id
  • trace-flags

The tracestate header provides additional vendor-specific trace identification information across different distributed tracing systems. Here’s an example of a tracestate header

tracestate: vendorname1=opaqueValue1,vendorname2=opaqueValue2

See the w3c trace-context docs for more details.

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impl TraceContextPropagator

pub fn new() -> TraceContextPropagator

Create a new TraceContextPropagator.

Trait Implementations§

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impl Clone for TraceContextPropagator

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fn clone(&self) -> TraceContextPropagator

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for TraceContextPropagator

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

Formats the value using the given formatter. Read more
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impl Default for TraceContextPropagator

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fn default() -> TraceContextPropagator

Returns the “default value” for a type. Read more
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impl TextMapPropagator for TraceContextPropagator

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fn inject_context(&self, cx: &Context, injector: &mut dyn Injector)

Properly encodes the values of the SpanContext and injects them into the Injector.

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fn extract_with_context( &self, cx: &Context, extractor: &dyn Extractor, ) -> Context

Retrieves encoded SpanContexts using the Extractor. It decodes the SpanContext and returns it. If no SpanContext was retrieved OR if the retrieved SpanContext is invalid then an empty SpanContext is returned.

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fn fields(&self) -> FieldIter<'_> ⓘ

Returns iter of fields used by TextMapPropagator
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fn inject(&self, injector: &mut dyn Injector)

Properly encodes the values of the current Context and injects them into the Injector.
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fn extract(&self, extractor: &dyn Extractor) -> Context

Retrieves encoded data using the provided Extractor. If no data for this format was retrieved OR if the retrieved data is invalid, then the current Context is returned.

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