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<?php |
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namespace SamuelBednarcik\ElasticAPMAgent\Builder; |
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use SamuelBednarcik\ElasticAPMAgent\Events\Transaction; |
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use SamuelBednarcik\ElasticAPMAgent\Exception\InvalidTraceContextHeaderException; |
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use SamuelBednarcik\ElasticAPMAgent\TraceParent; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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class TransactionBuilder extends AbstractEventBuilder |
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{ |
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/** |
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* @param Request|null $request |
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* @return Transaction |
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* @throws \Exception |
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*/ |
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public static function buildFromRequest(Request $request = null): Transaction |
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{ |
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if ($request === null) { |
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$request = Request::createFromGlobals(); |
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} |
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$transaction = new Transaction(); |
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$transaction->setName($request->getMethod() . ' ' . $request->getPathInfo()); |
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$transaction->setTimestamp($request->server->get('REQUEST_TIME_FLOAT') * 1000000); |
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$transaction->setType(Transaction::TYPE_REQUEST); |
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$transaction->setId(self::generateRandomBitsInHex(self::TRANSACTION_ID_SIZE)); |
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/** @var string|null $traceparentHeader */ |
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$traceparentHeader = $request->headers->get(TraceParent::HEADER_NAME, null, true); |
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if ($traceparentHeader !== null) { |
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try { |
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$traceParent = TraceParent::createFromHeader($traceparentHeader); |
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$transaction->setTraceId($traceParent->getTraceId()); |
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$transaction->setParentId($traceParent->getSpanId()); |
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} catch (InvalidTraceContextHeaderException $e) { |
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$transaction->setTraceId(self::generateRandomBitsInHex(self::TRACE_ID_SIZE)); |
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} |
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} else { |
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$transaction->setTraceId(self::generateRandomBitsInHex(self::TRACE_ID_SIZE)); |
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} |
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return $transaction; |
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} |
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/** |
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* @param Response $response |
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* @return string |
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*/ |
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public static function getResultStringFromResponse(Response $response): string |
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{ |
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return sprintf( |
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'HTTP/%s %s %s', |
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$response->getProtocolVersion(), |
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$response->getStatusCode(), |
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Response::$statusTexts[$response->getStatusCode()] |
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); |
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} |
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/** |
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* @param float $now Current unix timestamp in microseconds |
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* @param float $transactionTimestamp |
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* @return float |
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*/ |
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public static function calculateDuration(float $now, float $transactionTimestamp): float |
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{ |
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return round(($now - $transactionTimestamp) / 1000, 3); |
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} |
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} |
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samuelbednarcik /
elastic-apm-php-agent
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