}
        }
        return input;
    }

    public boolean hasUAMathcer() {
        return StringUtil.isNotBlank(getUserAgent());
    }

    public Matcher getUAMatcher(final CharSequence input) {
        if (!hasUAMathcer()) {
            return null;
        }

        if (userAgentPattern == null) {
            userAgentPattern = Pattern.compile(getUserAgent());
        }

                final String userAgent = request.getHeader("user-agent");
                if (StringUtil.isBlank(userAgent)) {
                    return false;
                }

                return pathMapping.getUAMatcher(userAgent).find();
            }).orElse(false);
        }
        return false;
    }