* Checks if this thumbnail generator is available for use.
     * @return True if available, false otherwise.
     */
    boolean isAvailable();

    /**
     * Destroys this thumbnail generator and releases any resources.
     */
    void destroy();

    /**
     * Creates a thumbnail generation task.
     * @param path The path to the source document.
     * @param docMap The document map containing metadata.

 *
 * <p>An instance may be called concurrently by multiple threads to process different entries.
 * Implementations of this interface should avoid performing blocking calls or synchronizing on
 * shared resources.
 *
 * @param <K> the most general type of keys this listener can listen for; for example {@code Object}
 *     if any key is acceptable

import org.lastaflute.web.login.LoginManager;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;
import org.lastaflute.web.util.LaServletContextUtil;

import jakarta.annotation.Resource;
import jakarta.servlet.ServletContext;

/**
 * Base action class for admin pages in Fess.
 * <p>
 * This abstract class provides common functionality for all admin actions,

import org.lastaflute.web.direction.FwWebDirection;
import org.lastaflute.web.ruts.process.ActionRuntime;
import org.lastaflute.web.ruts.renderer.JspHtmlRenderingProvider;

import jakarta.annotation.Resource;

/**
 * The framework assistant director for Fess.
 *
 * @author jflute
 */
public class FessFwAssistantDirector extends CachedFwAssistantDirector {

    //                                                                           =========
    /** Service for group operations. */
    @Resource
    private GroupService groupService;

    /** Pager for group list pagination. */
    @Resource
    private GroupPager groupPager;

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

    //                                                                           Attribute
    //                                                                           =========
    @Resource
    private RelatedQueryService relatedQueryService;
    @Resource
    private RelatedQueryPager relatedQueryPager;

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

import org.codelibs.fess.opensearch.config.exentity.PathMapping;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin path mapping management.
 * Provides RESTful API endpoints for managing path mapping settings in the Fess search engine.

import org.codelibs.fess.opensearch.config.exentity.RelatedContent;
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.

    //                                                                           =========
    @Resource
    private BadWordService badWordService;
    @Resource
    private BadWordPager badWordPager;

    /**
     * The suggest helper.
     */
    @Resource
    protected SuggestHelper suggestHelper;

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

import org.codelibs.fess.mylasta.action.FessUserBean;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.validation.VaErrorHook;

import jakarta.annotation.Resource;

/**
 * Action for user profile operations.
 */
public class ProfileAction extends FessSearchAction {

    /**
     * Default constructor.
     */
    public ProfileAction() {
        super();