41 lines
1.5 KiB
PHP
41 lines
1.5 KiB
PHP
<?php
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declare(strict_types=1);
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namespace OpenTelemetry\Context\Propagation;
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use OpenTelemetry\Context\ContextInterface;
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/**
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* @see https://github.com/open-telemetry/opentelemetry-specification/blob/v1.6.1/specification/context/api-propagators.md#textmap-propagator
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*/
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interface TextMapPropagatorInterface
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{
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/**
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* Returns list of fields that will be used by this propagator.
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*
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* @see https://github.com/open-telemetry/opentelemetry-specification/blob/v1.6.1/specification/context/api-propagators.md#fields
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*
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* @return list<string>
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*/
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public function fields() : array;
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/**
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* Injects specific values from the provided {@see ContextInterface} into the provided carrier
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* via an {@see PropagationSetterInterface}.
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*
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* @see https://github.com/open-telemetry/opentelemetry-specification/blob/v1.6.1/specification/context/api-propagators.md#textmap-inject
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*
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* @param mixed $carrier
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*/
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public function inject(&$carrier, PropagationSetterInterface $setter = null, ContextInterface $context = null): void;
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/**
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* Extracts specific values from the provided carrier into the provided {@see ContextInterface}
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* via an {@see PropagationGetterInterface}.
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*
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* @see https://github.com/open-telemetry/opentelemetry-specification/blob/v1.6.1/specification/context/api-propagators.md#textmap-extract
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*/
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public function extract($carrier, PropagationGetterInterface $getter = null, ContextInterface $context = null): ContextInterface;
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}
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