*/
    @Override
    public void clear() {
        cachedIncludeSet.clear();
        cachedExcludeSet.clear();
        if (sessionId != null) {
            getUrlFilterService().delete(sessionId);
        }
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.filter.UrlFilter#init(java.lang.String)
     */
    @Override

            urlQueueList.add(urlQueue);
        }
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.service.UrlQueueService#delete(java.lang.String)
     */
    @Override
    public void delete(final String sessionId) {
        dataHelper.removeUrlQueueList(sessionId);
    }

    /*
     * (non-Javadoc)
     *

            if (dfos != null && !dfos.isInMemory()) {
                final File file = dfos.getFile();
                try {
                    Files.delete(file.toPath());
                } catch (final IOException e) {
                    logger.warn("Failed to delete {}.", file.getAbsolutePath(), e);
                }
            }
        }

    }

    /**
     * Detects the MIME type of the content.

     */
    void addExcludeUrlFilter(String sessionId, List<String> urlList);

    /**
     * Deletes the URL filter associated with the specified session ID.
     *
     * @param sessionId the ID of the session whose URL filter is to be deleted
     */
    void delete(String sessionId);

    /**
     * Deletes all entries from the URL filter.
     */
    void deleteAll();

    /**

        } finally {
            if (tempDocRoot) {
                docRoot.delete();
            }
        }
    }

    protected static File createDocRoot(final int count) {
        try {
            final File tempDir = File.createTempFile("crawlerDocRoot", "");
            tempDir.delete();
            tempDir.mkdirs();

            // robots.txt

    /**
     * Cleans up the crawled data for a given session.
     * Deletes URL queue data and access result data, and clears the URL filter.
     * @param sessionId The session ID to clean up.
     */
    public void cleanup(final String sessionId) {
        // TODO transaction?
        urlQueueService.delete(sessionId);
        dataService.delete(sessionId);
        urlFilter.clear();
    }

    /**

        assertEquals(value1, settings.badword().get(false)[0]);
        assertEquals(value2, settings.badword().get(false)[1]);
        assertEquals(value3, settings.badword().get(false)[2]);

        settings.badword().delete(value2);
        assertEquals(2, settings.badword().get(false).length);
        assertEquals(value1, settings.badword().get(false)[0]);
        assertEquals(value3, settings.badword().get(false)[1]);

        client.prepareIndex().setIndex(TEST_INDEX).setId("2").setSource("field", "value2").execute().actionGet();
        client.admin().indices().prepareRefresh(TEST_INDEX).execute().actionGet();

        // Delete by query
        boolean result = SuggestUtil.deleteByQuery(client, settings, TEST_INDEX, QueryBuilders.termQuery("field", "value1"));
        assertTrue(result);

        // Verify deletion

        insertAll(urlFilterList, OpType.INDEX);
        invalidateSet.forEach(s -> excludeFilterCache.invalidate(s));
    }

    /**
     * Deletes all URL filters for the specified session.
     *
     * @param sessionId The session ID.
     */
    @Override
    public void delete(final String sessionId) {
        deleteBySessionId(sessionId);
        includeFilterCache.invalidate(sessionId);

        return getCount(builder -> builder.setQuery(QueryBuilders.termQuery(SESSION_ID, sessionId)));
    }

    /**
     * Deletes all access results for a specific session.
     *
     * @param sessionId The session ID.
     */
    @Override
    public void delete(final String sessionId) {
        deleteBySessionId(sessionId);
    }

    /**
     * Gets an access result by session ID and URL.