Wikimedia\Telemetry\W3CTraceContextPropagator Class Reference

A ContextPropagatorInterface implementation for W3C Trace Context. More...

Inherits Wikimedia\Telemetry\ContextPropagatorInterface.

Collaboration diagram for Wikimedia\Telemetry\W3CTraceContextPropagator:

Public Member Functions
	extract (array $carrier)
	Attempt to extract a SpanContext from the given carrier.
	inject (?SpanContext $spanContext, array $carrier)
	Inject the given SpanContext into the given carrier.SpanContext may be null, in which case the propagator might still inject non-span-specific data. Returns array carrier with SpanContext injected

Detailed Description

A ContextPropagatorInterface implementation for W3C Trace Context.

This currently only supports a minimal subset of the spec: just the traceparent header, and only version 00.

It will refuse to inject a traceparent that would be invalid according to version 00 of the spec.

See also

https://www.w3.org/TR/trace-context/

Since

1.43

Access: internal

Definition at line 17 of file W3CTraceContextPropagator.php.

Member Function Documentation

extract()

Wikimedia\Telemetry\W3CTraceContextPropagator::extract

(

array

$carrier

)

Attempt to extract a SpanContext from the given carrier.

Implements Wikimedia\Telemetry\ContextPropagatorInterface.

Definition at line 38 of file W3CTraceContextPropagator.php.

inject()

Wikimedia\Telemetry\W3CTraceContextPropagator::inject	(	?SpanContext	$spanContext,
		array	$carrier )

Inject the given SpanContext into the given carrier.SpanContext may be null, in which case the propagator might still inject non-span-specific data.

Returns

array carrier with SpanContext injected

Implements Wikimedia\Telemetry\ContextPropagatorInterface.

Definition at line 21 of file W3CTraceContextPropagator.php.

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The documentation for this class was generated from the following file:

• includes/libs/telemetry/W3CTraceContextPropagator.php