private Optional getJwtTokenString()

in library/src/main/java/org/apache/fineract/cn/anubis/security/FinKeycloakAuthenticationProvider.java [112:123]

• 11 lines of code
• 4 McCabe index (conditional complexity)

    private Optional<String> getJwtTokenString(final String authenticationHeader) {
        if ((authenticationHeader == null) || authenticationHeader.equals(
                TokenConstants.NO_AUTHENTICATION)){
            return Optional.empty();
        }

        if (!authenticationHeader.startsWith(TokenConstants.PREFIX)) {
            logger.debug("Authentication failed for a token which does not begin with the token prefix.");
            throw AmitAuthenticationException.invalidHeader();
        }
        return Optional.of(authenticationHeader.substring(TokenConstants.PREFIX.length()).trim());
    }