diff options
author | Andrew Dolgov <[email protected]> | 2023-10-20 17:12:29 +0300 |
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committer | Andrew Dolgov <[email protected]> | 2023-10-20 21:13:39 +0300 |
commit | cdd7ad020e165fe680703b6d3319b908b682fb7a (patch) | |
tree | b51eb09b7b4587e8fbc5624ac8d88d28cfcd0b04 /vendor/open-telemetry/sdk/Trace/RandomIdGenerator.php | |
parent | 45a9ff0c88cbd33892ff16ab837e9059937d656e (diff) |
jaeger-client -> opentelemetry
Diffstat (limited to 'vendor/open-telemetry/sdk/Trace/RandomIdGenerator.php')
-rw-r--r-- | vendor/open-telemetry/sdk/Trace/RandomIdGenerator.php | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/vendor/open-telemetry/sdk/Trace/RandomIdGenerator.php b/vendor/open-telemetry/sdk/Trace/RandomIdGenerator.php new file mode 100644 index 000000000..39767fb0f --- /dev/null +++ b/vendor/open-telemetry/sdk/Trace/RandomIdGenerator.php @@ -0,0 +1,49 @@ +<?php + +declare(strict_types=1); + +namespace OpenTelemetry\SDK\Trace; + +use OpenTelemetry\API\Trace\SpanContextValidator; +use Throwable; + +class RandomIdGenerator implements IdGeneratorInterface +{ + private const TRACE_ID_HEX_LENGTH = 32; + private const SPAN_ID_HEX_LENGTH = 16; + + public function generateTraceId(): string + { + do { + $traceId = $this->randomHex(self::TRACE_ID_HEX_LENGTH); + } while (!SpanContextValidator::isValidTraceId($traceId)); + + return $traceId; + } + + public function generateSpanId(): string + { + do { + $spanId = $this->randomHex(self::SPAN_ID_HEX_LENGTH); + } while (!SpanContextValidator::isValidSpanId($spanId)); + + return $spanId; + } + + /** + * @psalm-suppress ArgumentTypeCoercion $hexLength is always a positive integer + */ + private function randomHex(int $hexLength): string + { + try { + return bin2hex(random_bytes(intdiv($hexLength, 2))); + } catch (Throwable $e) { + return $this->fallbackAlgorithm($hexLength); + } + } + + private function fallbackAlgorithm(int $hexLength): string + { + return substr(str_shuffle(str_repeat('0123456789abcdef', $hexLength)), 1, $hexLength); + } +} |