Jackalope\BinaryStreamWrapper::init_stream PHP Method

    private function init_stream()
    {
        if (null === $this->stream) {
            if ($this->session && !$this->session->isLive()) {
                throw new LogicException('Trying to read a stream from a closed transport.');
            }
            $url = parse_url($this->path);
            $this->session = Session::getSessionFromRegistry($url['host']);
            if (!$this->session) {
                throw new LogicException('Trying to read a stream from a closed transport');
            }
            $property_path = $url['path'];
            if (!empty($url['query'])) {
                $property_path .= '?' . $url['query'];
            } elseif ('?' === $this->path[strlen($this->path) - 1]) {
                $property_path .= '?';
            }
            $token = isset($url['user']) ? $url['user'] : null;
            if (null === $token) {
                $this->stream = $this->session->getObjectManager()->getBinaryStream($property_path);
            } else {
                // check if streams have been loaded for multivalued properties
                if (!isset(self::$multiValueMap[$token])) {
                    self::$multiValueMap[$token] = $this->session->getObjectManager()->getBinaryStream($property_path);
                }
                $index = isset($url['port']) ? $url['port'] - 1 : 0;
                if (!isset(self::$multiValueMap[$token][$index])) {
                    throw new LogicException("Trying to read a stream from a non existent token '{$token}' or token index '{$index}'.");
                }
                $this->stream = self::$multiValueMap[$token][$index];
            }
        }
    }