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<?php
declare(strict_types=1);
namespace OpenTelemetry\SDK\Trace;
use function ctype_space;
use OpenTelemetry\API\Trace as API;
use OpenTelemetry\Context\Context;
use OpenTelemetry\SDK\Common\Instrumentation\InstrumentationScopeInterface;
class Tracer implements API\TracerInterface
{
public const FALLBACK_SPAN_NAME = 'empty';
/** @readonly */
private TracerSharedState $tracerSharedState;
/** @readonly */
private InstrumentationScopeInterface $instrumentationScope;
public function __construct(
TracerSharedState $tracerSharedState,
InstrumentationScopeInterface $instrumentationScope
) {
$this->tracerSharedState = $tracerSharedState;
$this->instrumentationScope = $instrumentationScope;
}
/** @inheritDoc */
public function spanBuilder(string $spanName): API\SpanBuilderInterface
{
if (ctype_space($spanName)) {
$spanName = self::FALLBACK_SPAN_NAME;
}
if ($this->tracerSharedState->hasShutdown()) {
return new API\NoopSpanBuilder(Context::storage());
}
return new SpanBuilder(
$spanName,
$this->instrumentationScope,
$this->tracerSharedState,
);
}
public function getInstrumentationScope(): InstrumentationScopeInterface
{
return $this->instrumentationScope;
}
}
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