function TraceState::parse

1 call to TraceState::parse()

TraceState::__construct in vendor/open-telemetry/api/Trace/TraceState.php

File

vendor/open-telemetry/api/Trace/TraceState.php, line 123

Class

TraceState

Namespace

OpenTelemetry\API\Trace

Code

private static function parse(string $rawTracestate) : array {
    $traceState = [];
    $members = explode(',', $rawTracestate);
    foreach ($members as $member) {
        if (($member = trim($member, " \t")) === '') {
            continue;
        }
        $member = explode('=', $member, 2);
        if (count($member) !== 2) {
            self::logWarning(sprintf('Incomplete list member in tracestate "%s"', $rawTracestate));
            return [];
        }
        [
            $key,
            $value,
        ] = $member;
        if (!self::validateMember($traceState, $key, $value)) {
            self::logWarning(sprintf('Invalid list member "%s=%s" in tracestate "%s"', $key, $value, $rawTracestate));
            return [];
        }
        $traceState[$key] ??= $value;
    }
    return $traceState;
}