protected String getUserDn()

in core/src/main/java/org/apache/shiro/realm/ldap/DefaultLdapRealm.java [226:250]

• 24 lines of code
• 8 McCabe index (conditional complexity)

    protected String getUserDn(String principal) throws IllegalArgumentException, IllegalStateException {
        if (!StringUtils.hasText(principal)) {
            throw new IllegalArgumentException("User principal cannot be null or empty for User DN construction.");
        }
        String prefix = getUserDnPrefix();
        String suffix = getUserDnSuffix();
        if (prefix == null && suffix == null) {
            LOGGER.debug("userDnTemplate property has not been configured, indicating the submitted "
                    + "AuthenticationToken's principal is the same as the User DN.  Returning the method argument "
                    + "as is.");
            return principal;
        }

        int prefixLength = prefix != null ? prefix.length() : 0;
        int suffixLength = suffix != null ? suffix.length() : 0;
        StringBuilder sb = new StringBuilder(prefixLength + principal.length() + suffixLength);
        if (prefixLength > 0) {
            sb.append(prefix);
        }
        sb.append(principal);
        if (suffixLength > 0) {
            sb.append(suffix);
        }
        return sb.toString();
    }