}

            @Override
            protected OptionalThing<SMailSubjectFilter> createSubjectFilter() {
                return OptionalThing.of((view, subject) -> subject);
            }

            @Override
            protected OptionalThing<SMailAsyncStrategy> createAsyncStrategy() {

    /**
     * Returns an empty OptionalThing for login manager since API actions
     * use token-based authentication instead of traditional session-based login.
     *
     * @return empty OptionalThing indicating no login manager is used
     */
    @Override
    protected OptionalThing<LoginManager> myLoginManager() {
        return OptionalThing.empty();
    }

    /**

     * @return an OptionalThing containing the Config if the field exists and has a non-blank value,
     *         otherwise an empty OptionalThing
     */
    public OptionalThing<Config> getConfig(final String fieldName) {
        final String value = params.get(fieldName);
        if (StringUtil.isNotBlank(value)) {
            return OptionalThing.of(new Config(value));
        }

                logger.debug("Redirecting to SearchAction with parameters: {}", paramList);
            }
            return OptionalThing.of(redirectWith(SearchAction.class, new UrlChain(this).params(paramList.toArray(n -> new Object[n]))));
        }
        return OptionalThing.empty();
    }

    /**
     * SSO logout endpoint.
     *

    /**
     * Gets the login manager for this admin action.
     *
     * @return the login manager wrapped in OptionalThing
     */
    @Override
    protected OptionalThing<LoginManager> myLoginManager() {
        return OptionalThing.of(fessLoginAssist);
    }

    // ===================================================================================

    @Override
    public OptionalThing<ApiResponse> handleClientException(final ApiFailureResource resource, final RuntimeException cause) {
        return OptionalThing.of(asJson(createFailureBean(Status.BAD_REQUEST, createMessage(resource, cause))));
    }

    @Override
    public OptionalThing<ApiResponse> handleServerException(final ApiFailureResource resource, final Throwable cause) {

        JsonMappingOption option = provider.provideMappingOption();

        // The option should be configured with CAMEL_TO_LOWER_SNAKE
        // Field naming is now provided as OptionalThing
        OptionalThing<JsonFieldNaming> fieldNamingOpt = option.getFieldNaming();
        assertTrue("Field naming should be present", fieldNamingOpt.isPresent());
        JsonFieldNaming fieldNaming = fieldNamingOpt.get();

    }

    @Override
    public LaJobRunner createRunner() {
        return new LaJobRunner().useAccessContext(
                resource -> accessContextLogic.create(resource, OptionalThing::empty, OptionalThing::empty, () -> APP_TYPE));
    }

    /**
     * Sets the job class to be executed by this scheduler.
     *
     * @param jobClass the job class to set
     */

import org.codelibs.fess.mylasta.action.FessUserBean;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.RenderDataUtil;
import org.dbflute.optional.OptionalEntity;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.Execute;
import org.lastaflute.web.login.exception.LoginFailureException;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.validation.VaErrorHook;

         * @return The user type.
         */
        OptionalThing<String> supply();
    }

    /**
     * The supplier of user bean.
     */
    @FunctionalInterface
    public interface UserBeanSupplier {
        /**
         * Supply the user bean.
         * @return The user bean.
         */
        OptionalThing<FessUserBean> supply();
    }

    /**