assertFalse(ruleManager.hasRule(rule2));
        assertFalse(ruleManager.hasRule(rule3));

        ruleManager.addRule(rule2);

        assertTrue(ruleManager.hasRule(rule2));
        assertFalse(ruleManager.hasRule(rule3));

        ruleManager.addRule(rule3);

        assertTrue(ruleManager.hasRule(rule2));
        assertTrue(ruleManager.hasRule(rule3));

        ruleManager.removeRule(rule2);

        return user.isEditable();
    }

    public boolean hasRole(final String role) {
        return stream(user.getRoleNames()).get(stream -> stream.anyMatch(s -> s.equals(role)));
    }

    public boolean hasRoles(final String[] acceptedRoles) {
        return stream(user.getRoleNames())
                .get(stream -> stream.anyMatch(s1 -> stream(acceptedRoles).get(s3 -> s3.anyMatch(s2 -> s2.equals(s1)))));
    }

    /**
     * Checks if the specified rule exists.
     *
     * @param rule the rule to check for existence
     * @return true if the rule exists, false otherwise
     */
    boolean hasRule(Rule rule);

     * @return HTML response redirecting to the appropriate admin interface
     */
    protected HtmlResponse redirectByUser(final FessUserBean user) {
        if (user.hasRoles(fessConfig.getAuthenticationAdminRolesAsArray())) {
            return redirect(AdminDashboardAction.class);
        }
        final Class<? extends FessAdminAction> actionClass = AdminAction.getAdminActionClass(user);

        super.setupHtmlData(runtime);
        systemHelper.setupAdminHtmlData(this, runtime);

        final Boolean editable =
                getUserBean().map(user -> user.hasRoles(fessConfig.getAuthenticationAdminRolesAsArray()) || user.hasRole(getActionRole()))
                        .orElse(false);
        runtime.registerData("editable", editable);