return func.apply(host.getValue3());
                }
            }
            return defaultValue;
        }).orElse(defaultValue);
    }

    public String[] getVirtualHostPaths() {
        return stream(ComponentUtil.getFessConfig().getVirtualHosts())
                .get(stream -> stream.map(h -> "/" + h.getValue3()).toArray(n -> new String[n]));
    }