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<?php
declare(strict_types=1);
namespace OpenTelemetry\SDK\Trace;
use OpenTelemetry\API\Trace as API; /** @phan-suppress-current-line PhanUnreferencedUseNormal */
use OpenTelemetry\SDK\Common\Future\CancellationInterface;
use OpenTelemetry\SDK\Resource\ResourceInfo;
use OpenTelemetry\SDK\Trace\SpanProcessor\MultiSpanProcessor;
use OpenTelemetry\SDK\Trace\SpanProcessor\NoopSpanProcessor;
/**
* Stores shared state/config between all {@see API\TracerInterface} created via the same {@see API\TracerProviderInterface}.
*/
final class TracerSharedState
{
/** @readonly */
private IdGeneratorInterface $idGenerator;
/** @readonly */
private ResourceInfo $resource;
/** @readonly */
private SpanLimits $spanLimits;
/** @readonly */
private SamplerInterface $sampler;
/** @readonly */
private SpanProcessorInterface $spanProcessor;
private ?bool $shutdownResult = null;
public function __construct(
IdGeneratorInterface $idGenerator,
ResourceInfo $resource,
SpanLimits $spanLimits,
SamplerInterface $sampler,
array $spanProcessors
) {
$this->idGenerator = $idGenerator;
$this->resource = $resource;
$this->spanLimits = $spanLimits;
$this->sampler = $sampler;
switch (count($spanProcessors)) {
case 0:
$this->spanProcessor = NoopSpanProcessor::getInstance();
break;
case 1:
$this->spanProcessor = $spanProcessors[0];
break;
default:
$this->spanProcessor = new MultiSpanProcessor(...$spanProcessors);
break;
}
}
public function hasShutdown(): bool
{
return null !== $this->shutdownResult;
}
public function getIdGenerator(): IdGeneratorInterface
{
return $this->idGenerator;
}
public function getResource(): ResourceInfo
{
return $this->resource;
}
public function getSpanLimits(): SpanLimits
{
return $this->spanLimits;
}
public function getSampler(): SamplerInterface
{
return $this->sampler;
}
public function getSpanProcessor(): SpanProcessorInterface
{
return $this->spanProcessor;
}
/**
* Returns `false` is the provider is already shutdown, otherwise `true`.
*/
public function shutdown(?CancellationInterface $cancellation = null): bool
{
return $this->shutdownResult ?? ($this->shutdownResult = $this->spanProcessor->shutdown($cancellation));
}
}
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