59 lines
1.3 KiB
PHP
59 lines
1.3 KiB
PHP
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<?php
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declare(strict_types=1);
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namespace OpenTelemetry\SDK\Metrics\Stream;
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use OpenTelemetry\SDK\Metrics\Data\DataInterface;
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use OpenTelemetry\SDK\Metrics\Data\Temporality;
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/**
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* @internal
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*/
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interface MetricStreamInterface
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{
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/**
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* Returns the internal temporality of this stream.
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*
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* @return string|Temporality internal temporality
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*/
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public function temporality();
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/**
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* Returns the last metric timestamp.
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*
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* @return int metric timestamp
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*/
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public function timestamp(): int;
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/**
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* Pushes metric data to the stream.
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*
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* @param Metric $metric metric data to push
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*/
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public function push(Metric $metric): void;
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/**
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* Registers a new reader with the given temporality.
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*
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* @param string|Temporality $temporality temporality to use
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* @return int reader id
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*/
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public function register($temporality): int;
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/**
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* Unregisters the given reader.
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*
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* @param int $reader reader id
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*/
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public function unregister(int $reader): void;
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/**
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* Collects metric data for the given reader.
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*
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* @param int $reader reader id
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* @return DataInterface metric data
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*/
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public function collect(int $reader): DataInterface;
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}
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