LoggerDecorator.php

<?php

declare (strict_types=1);
namespace OpenTelemetry\SDK\Trace\SpanExporter;

use OpenTelemetry\SDK\Trace\Behavior\LoggerAwareTrait;
use OpenTelemetry\SDK\Trace\Behavior\SpanExporterDecoratorTrait;
use OpenTelemetry\SDK\Trace\Behavior\UsesSpanConverterTrait;
use OpenTelemetry\SDK\Trace\SpanConverterInterface;
use OpenTelemetry\SDK\Trace\SpanExporterInterface;
use Psr\Log\LoggerAwareInterface;
use Psr\Log\LoggerInterface;
use Psr\Log\LogLevel;
use Psr\Log\NullLogger;
class LoggerDecorator implements SpanExporterInterface, LoggerAwareInterface {
    use SpanExporterDecoratorTrait;
    use UsesSpanConverterTrait;
    use LoggerAwareTrait;
    public function __construct(SpanExporterInterface $decorated, ?LoggerInterface $logger = null, ?SpanConverterInterface $converter = null) {
        $this->setDecorated($decorated);
        $this->setLogger($logger ?? new NullLogger());
        $this->setSpanConverter($converter ?? new FriendlySpanConverter());
    }
    protected function beforeExport(iterable $spans) : iterable {
        return $spans;
    }
    protected function afterExport(iterable $spans, bool $exportSuccess) : void {
        if ($exportSuccess) {
            $this->log('Status Success', $this->getSpanConverter()
                ->convert($spans), LogLevel::INFO);
        }
        else {
            $this->log('Status Failed Retryable', $this->getSpanConverter()
                ->convert($spans), LogLevel::ERROR);
        }
    }

}