trait SpanExporterTrait

trait SpanExporterTrait {
    private bool $running = true;
    
    /** @see https://github.com/open-telemetry/opentelemetry-specification/blob/v1.7.0/specification/trace/sdk.md#shutdown-2 */
    public function shutdown(?CancellationInterface $cancellation = null) : bool {
        $this->running = false;
        return true;
    }
    
    /** @see https://github.com/open-telemetry/opentelemetry-specification/blob/v1.7.0/specification/trace/sdk.md#forceflush-2 */
    public function forceFlush(?CancellationInterface $cancellation = null) : bool {
        return true;
    }
    
    /**
     * @param iterable<SpanDataInterface> $batch
     * @return FutureInterface<bool>
     */
    public function export(iterable $batch, ?CancellationInterface $cancellation = null) : FutureInterface {
        if (!$this->running) {
            return new CompletedFuture(false);
        }
        return new CompletedFuture($this->doExport($batch));
        
        /** @phpstan-ignore-line */
    }
    
    /**
     * @param iterable<SpanDataInterface> $spans Batch of spans to export
     */
    protected abstract function doExport(iterable $spans) : bool;
    
    /** @phpstan-ignore-line */

}