class SpanProcessorFactory

class SpanProcessorFactory {
    public function create(?SpanExporterInterface $exporter = null, ?MeterProviderInterface $meterProvider = null) : SpanProcessorInterface {
        if ($exporter === null) {
            return new NoopSpanProcessor();
        }
        $name = Configuration::getEnum(Env::OTEL_PHP_TRACES_PROCESSOR);
        return match ($name) {    Values::VALUE_BATCH => new BatchSpanProcessor($exporter, Clock::getDefault(), Configuration::getInt(Env::OTEL_BSP_MAX_QUEUE_SIZE, BatchSpanProcessor::DEFAULT_MAX_QUEUE_SIZE), Configuration::getInt(Env::OTEL_BSP_SCHEDULE_DELAY, BatchSpanProcessor::DEFAULT_SCHEDULE_DELAY), Configuration::getInt(Env::OTEL_BSP_EXPORT_TIMEOUT, BatchSpanProcessor::DEFAULT_EXPORT_TIMEOUT), Configuration::getInt(Env::OTEL_BSP_MAX_EXPORT_BATCH_SIZE, BatchSpanProcessor::DEFAULT_MAX_EXPORT_BATCH_SIZE), true, $meterProvider ?? new NoopMeterProvider()),
            Values::VALUE_SIMPLE => new SimpleSpanProcessor($exporter),
            Values::VALUE_NOOP, Values::VALUE_NONE => NoopSpanProcessor::getInstance(),
            default => throw new InvalidArgumentException('Unknown processor: ' . $name),
        
        };
    }

}