return null;
        })).status(Status.OK).result());
    }

    /**
     * Creates a new related query setting.
     *
     * @param body the related query configuration data to create
     * @return JSON response containing the created related query ID and status
     */
    // POST /api/admin/relatedquery/setting
    @Execute

import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin related content management.
 * Provides RESTful API endpoints for managing related content settings in the Fess search engine.
 * Related content settings define content relationships and associations for search results.
 */
public class ApiAdminRelatedcontentAction extends FessApiAdminAction {

    public Integer sortOrder;

    /**
     * The username who created this related content.
     */
    @Size(max = 1000)
    public String createdBy;

    /**
     * The timestamp when this related content was created.
     */
    @ValidateTypeFailure
    public Long createdTime;

    /**
     * Initializes the form with default values for creating new related content.
     */
    public void initialize() {

import org.codelibs.fess.util.ComponentUtil;

import jakarta.annotation.PostConstruct;

/**
 * Helper class for managing related query configurations.
 * This class provides functionality to load, cache, and retrieve related queries
 * based on search terms and virtual hosts. Related queries are used to suggest
 * alternative or supplementary search terms to improve search results.
 */

import org.dbflute.cbean.result.PagingResultBean;
import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service class for managing related content entities.
 * This service provides CRUD operations for related content, including
 * retrieval, storage, deletion, and search functionality.
 */
public class RelatedContentService extends FessAppService {

    /**
     * Default constructor.

    /**
     * Displays the related query management index page.
     *
     * @return HTML response for the related query list page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index() {
        return asListHtml();
    }

    /**
     * Displays a paginated list of related query items.
     *

    /**
     * Unique identifier for the related query.
     */
    public String id;

    /**
     * Search term for the related query.
     */
    public String term;

    /**
     * Related queries string containing associated search queries.
     */
    public String queries;

    /**
     * User who created the related query entry.
     */
    public String createdBy;

    /**

    public String term;

    /**
     * The related queries to be suggested (one per line).
     */
    @Required
    @Size(max = 10000)
    public String queries;

    /**
     * The virtual host for which these related queries apply.
     */
    @Size(max = 1000)
    public String virtualHost;

    /**
     * The username who created these related queries.
     */
    @Size(max = 1000)

    }

    /**
     * Retrieves related content for a given search query.
     * First checks for exact term matches, then evaluates regex patterns.
     * For regex matches, the query placeholder is replaced with the actual query.
     *
     * @param query the search query to find related content for
     * @return array of related content strings, or empty array if no matches found
     */

     */
    @Nonnull
    <T> Optional<T> lookupOptional(Class<T> type, String name);

    /**
     * Performs a collection lookup for given typed components.
     *
     * @param type The component type.
     * @return The list of components. The list may be empty if no components found.
     * @param <T> The component type.
     * @throws LookupException if there is some provisioning related issue.
     */