StreamMetricSourceProvider.php

<?php

declare (strict_types=1);
namespace OpenTelemetry\SDK\Metrics\MetricFactory;

use OpenTelemetry\SDK\Common\Instrumentation\InstrumentationScopeInterface;
use OpenTelemetry\SDK\Metrics\Instrument;
use OpenTelemetry\SDK\Metrics\MetricMetadataInterface;
use OpenTelemetry\SDK\Metrics\MetricRegistry\MetricCollectorInterface;
use OpenTelemetry\SDK\Metrics\MetricSourceInterface;
use OpenTelemetry\SDK\Metrics\MetricSourceProviderInterface;
use OpenTelemetry\SDK\Metrics\Stream\MetricStreamInterface;
use OpenTelemetry\SDK\Metrics\ViewProjection;
use OpenTelemetry\SDK\Resource\ResourceInfo;

/**
 * @internal
 */
final class StreamMetricSourceProvider implements MetricSourceProviderInterface, MetricMetadataInterface {
    public function __construct(ViewProjection $view, Instrument $instrument, InstrumentationScopeInterface $instrumentationLibrary, ResourceInfo $resource, MetricStreamInterface $stream, MetricCollectorInterface $metricCollector, int $streamId) {
    }
    public function create($temporality) : MetricSourceInterface {
        return new StreamMetricSource($this, $this->stream
            ->register($temporality));
    }
    public function instrumentType() {
        return $this->instrument->type;
    }
    public function name() : string {
        return $this->view->name;
    }
    public function unit() : ?string {
        return $this->view->unit;
    }
    public function description() : ?string {
        return $this->view->description;
    }
    public function temporality() {
        return $this->stream
            ->temporality();
    }

}