* @throws Exception
     */
    @Test
    public void testFromDir_FileSystem() throws Exception {
        final Traverser traverser = TraversalUtil.getTraverser("org/codelibs/core/io/xxx");
        assertThat(traverser, is(notNullValue()));
        assertThat(traverser instanceof FileSystemTraverser, is(true));

        final List<String> list = new ArrayList<String>();
        traverser.forEach((ResourceHandler) (path, is) -> list.add(path));

    }

    protected String getHostKey(final RelatedQuery entity) {
        final String key = entity.getVirtualHost();
        return StringUtil.isBlank(key) ? StringUtil.EMPTY : key;
    }

    public String[] getRelatedQueries(final String query) {
        final String key = ComponentUtil.getVirtualHostHelper().getVirtualHostKey();
        final Map<String, String[]> map = relatedQueryMap.get(key);

        return asDocMeta().id();
    }

    public void setId(final String id) {
        asDocMeta().id(id);
    }

    public Long getVersionNo() {
        return asDocMeta().version();
    }

    public void setVersionNo(final Long version) {
        asDocMeta().version(version);
    }

    public String process(final PathMappingHelper pathMappingHelper, final String input) {
        if (regexPattern == null) {

import java.util.List;

import org.codelibs.fess.util.ComponentUtil;

public class KeyMatchPager implements Serializable {

    private static final long serialVersionUID = 1L;

    public static final int DEFAULT_PAGE_SIZE = 20;

    public static final int DEFAULT_CURRENT_PAGE_NUMBER = 1;

    private int allRecordCount;

    private int allPageCount;

    private boolean existPrePage;

import java.util.List;

import org.codelibs.fess.util.ComponentUtil;

public class ReqHeaderPager implements Serializable {

    private static final long serialVersionUID = 1L;

    public static final int DEFAULT_PAGE_SIZE = 20;

    public static final int DEFAULT_CURRENT_PAGE_NUMBER = 1;

    private int allRecordCount;

    private int allPageCount;

    private boolean existPrePage;

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

    @Resource
    private PathMappingService pathMappingService;

    // GET /api/admin/pathmap
    // POST /api/admin/pathmap
    @Execute
    public JsonResponse<ApiResult> settings(final SearchBody body) {
        validateApi(body, messages -> {});

  private final Supplier<String> threadNameSupplier = new ThreadNameSupplier();

  @WeakOuter
  private final class ThreadNameSupplier implements Supplier<String> {
    @Override
    public String get() {
      return serviceName() + " " + state();
    }
  }

  /* use AbstractService for state management */
  private final Service delegate = new DelegateService();

  @WeakOuter

public class PurgeLogJob {

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

    public String execute() {
        final CrawlingInfoService crawlingInfoService = ComponentUtil.getComponent(CrawlingInfoService.class);
        final SearchLogService searchLogService = ComponentUtil.getComponent(SearchLogService.class);
        final JobLogService jobLogService = ComponentUtil.getComponent(JobLogService.class);

    @Execute
    public JsonResponse<ApiResult> get$setting(final String id) {

        final ElevateWord entity = elevateWordService.getElevateWord(id).orElseGet(() -> {
            throwValidationErrorApi(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id));
            return null;
        });

        final EditBody body = createEditBody(entity);

    public static class OpenIdUser implements FessUser {

        private static final long serialVersionUID = 1L;

        protected final String name;

        protected String[] groups;

        protected String[] roles;

        protected String[] permissions;

        protected OpenIdUser(final String name, final String[] groups, final String[] roles) {
            this.name = name;
            this.groups = groups;