* alternative or supplementary search terms to improve search results.
 */
public class RelatedQueryHelper extends AbstractConfigHelper {
    private static final Logger logger = LogManager.getLogger(RelatedQueryHelper.class);

    /**
     * Map storing related queries organized by virtual host key and search term.

import org.codelibs.core.collection.SLinkedList;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.log.Logger;

/**
 * A class that handles timers.
 *
 * @author higa
 *
 */
public class TimeoutManager implements Runnable {

    private static final Logger logger = Logger.getLogger(TimeoutManager.class);

    /**
     * Instance for the singleton.
     */

/**
 * API action for admin related query management.
 * Provides REST endpoints for managing related search queries.
 */
public class ApiAdminRelatedqueryAction extends FessApiAdminAction {

    private static final Logger logger = LogManager.getLogger(ApiAdminRelatedqueryAction.class);

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

        this.logger = logger;
    }

    @Override
    public void testArtifact(Artifact node) {}

    @Override
    public void startProcessChildren(Artifact artifact) {
        indent += "  ";
    }

    @Override
    public void endProcessChildren(Artifact artifact) {
        indent = indent.substring(2);
    }

    @Override

 * This searcher handles query execution, response processing, and document highlighting.
 */
public class DefaultSearcher extends RankFusionSearcher {

    /** Logger for this class. */
    private static final Logger logger = LogManager.getLogger(DefaultSearcher.class);

    /**
     * Creates a new instance of DefaultSearcher.
     * This constructor initializes the default rank fusion searcher for performing

public class BooleanQueryCommand extends QueryCommand {
    /**
     * Default constructor for BooleanQueryCommand.
     */
    public BooleanQueryCommand() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(BooleanQueryCommand.class);

    @Override
    protected String getQueryClassName() {
        return BooleanQuery.class.getSimpleName();
    }

    @Override

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.lastaflute.core.direction.CurtainFinallyHook;
import org.lastaflute.core.direction.FwAssistantDirector;

/**
 * The hook for curtain finally.
 *
 * @author jflute
 */
public class FessCurtainFinallyHook implements CurtainFinallyHook {

    private static final Logger logger = LogManager.getLogger(FessCurtainFinallyHook.class);

    @Override

 */
public class PingSearchEngineJob {

    /**
     * Default constructor.
     */
    public PingSearchEngineJob() {
        // Default constructor
    }

    private static final Logger logger = LogManager.getLogger(PingSearchEngineJob.class);

    /**
     * Executes the ping job.
     *
     * @return the execution result
     */
    public String execute() {

 * The login action.
 */
public class LoginAction extends FessLoginAction {

    /**
     * Default constructor.
     */
    public LoginAction() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(LoginAction.class);

    private static final String INVALID_OLD_PASSWORD = "LoginAction.invalidOldPassword";

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

        B extends PerCollectionSizeTestSuiteBuilder<B, G, T, E>,
        G extends TestContainerGenerator<T, E>,
        T,
        E>
    extends FeatureSpecificTestSuiteBuilder<B, G> {
  private static final Logger logger =
      Logger.getLogger(PerCollectionSizeTestSuiteBuilder.class.getName());

  /** Creates a runnable JUnit test suite based on the criteria already given. */
  @Override
  public TestSuite createTestSuite() {