*
     * @param form the create form
     * @param username the current username
     * @param currentTime the current time
     * @return optional key match entity
     */
    public static OptionalEntity<KeyMatch> getEntity(final CreateForm form, final String username, final long currentTime) {
        switch (form.crudMode) {
        case CrudMode.CREATE:

    /**
     * Get a data config entity from a form.
     * @param form The create form.
     * @param username The username.
     * @param currentTime The current time.
     * @return An optional entity of a data config.
     */
    public static OptionalEntity<DataConfig> getEntity(final CreateForm form, final String username, final long currentTime) {
        switch (form.crudMode) {
        case CrudMode.CREATE:

        // TODO Auto-generated method stub
        return null;
    }

    /**
     * Generates a Type 3 NTLM message.
     * @param username The username.
     * @param password The password.
     * @param domain The domain.
     * @param workstation The workstation.
     * @param challenge The Type 2 challenge message.
     * @return The Type 3 message.

     * @param username The username for which to change the password.
     * @param password The new password.
     * @return True if the password was successfully changed in all chains, false otherwise.
     */
    public boolean changePassword(final String username, final String password) {
        return chains().get(stream -> stream.allMatch(c -> c.changePassword(username, password)));
    }

    /**

    public void setUsername_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda) {
        setUsername_Terms("username", opLambda, null);
    }

    public void setUsername_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda, OperatorCall<BsWebAuthenticationCA> aggsLambda) {
        setUsername_Terms("username", opLambda, aggsLambda);
    }

    void delete(User user);

    /**
     * Changes the password for the specified user.
     * @param username The username for which to change the password.
     * @param password The new password.
     * @return True if the password was successfully changed, false otherwise.
     */
    boolean changePassword(String username, String password);

    /**
     * Loads user information from the authentication chain.

            }
            final int domainLength = domain != null ? domain.length : 0;
            final String userName = getUser();
            byte[] user = null;
            if (userName != null && userName.length() != 0) {
                user = unicode ? userName.getBytes(UNI_ENCODING) : userName.toUpperCase().getBytes(oem);
            }
            final int userLength = user != null ? user.length : 0;

                .put("http.heartbeat_interval", fessConfig.getFesenHeartbeatInterval());
        final String username = fessConfig.getFesenUsername();
        final String password = fessConfig.getFesenPassword();
        if (StringUtil.isNotBlank(username) && StringUtil.isNotBlank(password)) {
            builder.put(Constants.FESEN_USERNAME, username);
            builder.put(Constants.FESEN_PASSWORD, password);
        }

                                    <label for="username" class="col-sm-3 text-sm-right col-form-label"><la:message
                                            key="labels.file_auth_username"/></label>
                                    <div class="col-sm-9">
                                        <la:errors property="username"/>
                                        <la:text styleId="username" property="username" styleClass="form-control"/>

                logger.debug("principal={}", principal);
            }

            final String[] username = principal.getName().split("@", 2);
            if (logger.isDebugEnabled()) {
                logger.debug("username={}", Arrays.toString(username));
            }
            return new SpnegoCredential(username[0]);
        }).orElse(null);

    }

    /**
     * SPNEGO filter configuration implementation.