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<?php
declare(strict_types=1);
namespace OpenTelemetry\Contrib\Otlp;
use OpenTelemetry\API\Signals;
use OpenTelemetry\SDK\Common\Configuration\Configuration;
use OpenTelemetry\SDK\Common\Configuration\Defaults;
use OpenTelemetry\SDK\Common\Configuration\Variables;
use OpenTelemetry\SDK\Common\Export\TransportFactoryInterface;
use OpenTelemetry\SDK\Common\Export\TransportInterface;
use OpenTelemetry\SDK\Logs\LogRecordExporterFactoryInterface;
use OpenTelemetry\SDK\Logs\LogRecordExporterInterface;
use OpenTelemetry\SDK\Registry;
class LogsExporterFactory implements LogRecordExporterFactoryInterface
{
private const DEFAULT_COMPRESSION = 'none';
private ?TransportFactoryInterface $transportFactory;
public function __construct(?TransportFactoryInterface $transportFactory = null)
{
$this->transportFactory = $transportFactory;
}
/**
* @psalm-suppress ArgumentTypeCoercion
*/
public function create(): LogRecordExporterInterface
{
$protocol = Configuration::has(Variables::OTEL_EXPORTER_OTLP_LOGS_PROTOCOL)
? Configuration::getEnum(Variables::OTEL_EXPORTER_OTLP_LOGS_PROTOCOL)
: Configuration::getEnum(Variables::OTEL_EXPORTER_OTLP_PROTOCOL);
return new LogsExporter($this->buildTransport($protocol));
}
/**
* @psalm-suppress UndefinedClass
*/
private function buildTransport(string $protocol): TransportInterface
{
$endpoint = $this->getEndpoint($protocol);
$headers = Configuration::has(Variables::OTEL_EXPORTER_OTLP_LOGS_HEADERS)
? Configuration::getMap(Variables::OTEL_EXPORTER_OTLP_LOGS_HEADERS)
: Configuration::getMap(Variables::OTEL_EXPORTER_OTLP_HEADERS);
$headers += OtlpUtil::getUserAgentHeader();
$compression = $this->getCompression();
$factoryClass = Registry::transportFactory($protocol);
$factory = $this->transportFactory ?: new $factoryClass();
return $factory->create(
$endpoint,
Protocols::contentType($protocol),
$headers,
$compression,
);
}
private function getCompression(): string
{
return Configuration::has(Variables::OTEL_EXPORTER_OTLP_LOGS_COMPRESSION) ?
Configuration::getEnum(Variables::OTEL_EXPORTER_OTLP_LOGS_COMPRESSION) :
Configuration::getEnum(Variables::OTEL_EXPORTER_OTLP_COMPRESSION, self::DEFAULT_COMPRESSION);
}
private function getEndpoint(string $protocol): string
{
if (Configuration::has(Variables::OTEL_EXPORTER_OTLP_LOGS_ENDPOINT)) {
return Configuration::getString(Variables::OTEL_EXPORTER_OTLP_LOGS_ENDPOINT);
}
$endpoint = Configuration::has(Variables::OTEL_EXPORTER_OTLP_ENDPOINT)
? Configuration::getString(Variables::OTEL_EXPORTER_OTLP_ENDPOINT)
: Defaults::OTEL_EXPORTER_OTLP_ENDPOINT;
if ($protocol === Protocols::GRPC) {
return $endpoint . OtlpUtil::method(Signals::LOGS);
}
return HttpEndpointResolver::create()->resolveToString($endpoint, Signals::LOGS);
}
}
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