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<?php
declare(strict_types=1);
namespace OpenTelemetry\SDK\Metrics\MetricFactory;
use OpenTelemetry\SDK\Metrics\Data\Metric;
use OpenTelemetry\SDK\Metrics\MetricSourceInterface;
/**
* @internal
*/
final class StreamMetricSource implements MetricSourceInterface
{
private StreamMetricSourceProvider $provider;
private int $reader;
public function __construct(StreamMetricSourceProvider $provider, int $reader)
{
$this->provider = $provider;
$this->reader = $reader;
}
public function collectionTimestamp(): int
{
return $this->provider->stream->timestamp();
}
public function collect(): Metric
{
return new Metric(
$this->provider->instrumentationLibrary,
$this->provider->resource,
$this->provider->view->name,
$this->provider->view->unit,
$this->provider->view->description,
$this->provider->stream->collect($this->reader),
);
}
public function __destruct()
{
$this->provider->stream->unregister($this->reader);
}
}
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