function is_on() {
            self::$_static_logger->entrance();

            if ( isset( $this->_is_on ) ) {
                return $this->_is_on;
            }

            // If already installed or pending then sure it's on :)
            if ( $this->is_registered() || $this->is_pending_activation() ) {
                $this->_is_on = true;

                return true;
            }

            return false;
        }