Sdk.php

<?php

declare (strict_types=1);
namespace OpenTelemetry\SDK\Resource\Detectors;

use function class_exists;
use Composer\InstalledVersions;
use OpenTelemetry\SDK\Common\Attribute\Attributes;
use OpenTelemetry\SDK\Resource\ResourceDetectorInterface;
use OpenTelemetry\SDK\Resource\ResourceInfo;
use OpenTelemetry\SemConv\ResourceAttributes;

/**
 * @see https://github.com/open-telemetry/opentelemetry-specification/blob/v1.8.0/specification/resource/semantic_conventions/README.md#telemetry-sdk
 */
final class Sdk implements ResourceDetectorInterface {
    private const PACKAGES = [
        'open-telemetry/sdk',
        'open-telemetry/opentelemetry',
    ];
    public function getResource() : ResourceInfo {
        $attributes = [
            ResourceAttributes::TELEMETRY_SDK_NAME => 'opentelemetry',
            ResourceAttributes::TELEMETRY_SDK_LANGUAGE => 'php',
        ];
        if (class_exists(InstalledVersions::class)) {
            foreach (self::PACKAGES as $package) {
                if (!InstalledVersions::isInstalled($package)) {
                    continue;
                }
                if (($version = InstalledVersions::getPrettyVersion($package)) === null) {
                    continue;
                }
                $attributes[ResourceAttributes::TELEMETRY_SDK_VERSION] = $version;
                break;
            }
        }
        if (extension_loaded('opentelemetry')) {
            $attributes[ResourceAttributes::TELEMETRY_DISTRO_NAME] = 'opentelemetry-php-instrumentation';
            $attributes[ResourceAttributes::TELEMETRY_DISTRO_VERSION] = phpversion('opentelemetry');
        }
        return ResourceInfo::create(Attributes::create($attributes), ResourceAttributes::SCHEMA_URL);
    }

}