Disque\Connection\Manager::getNodeIdFromJobId PHP Method

    private function getNodeIdFromJobId($jobId)
    {
        $nodePrefix = $this->getNodePrefixFromJobId($jobId);
        if (isset($this->nodePrefixes[$nodePrefix]) && array_key_exists($this->nodePrefixes[$nodePrefix], $this->nodes)) {
            return $this->nodePrefixes[$nodePrefix];
        }
        return null;
    }