* @param writer the writer to append extracted text to
     */
    protected void extractAnnotations(final PDDocument doc, final StringWriter writer) {
        for (final PDPage page : doc.getPages()) {
            try {
                for (final PDAnnotation annotation : page.getAnnotations()) {
                    if (annotation instanceof final PDAnnotationFileAttachment annotationFileAttachment) {

        assertEquals(elevateWord3.getReadings().get(0), settings.elevateWord().get()[2].getReadings().get(0));
        assertEquals(elevateWord3.getTags().get(0), settings.elevateWord().get()[2].getTags().get(0));
        assertEquals(elevateWord3.getRoles().get(0), settings.elevateWord().get()[2].getRoles().get(0));
    }

    @Test
    public void test_delete() {

     */
    public List<SitemapImage> getImages() {
        if (images == null) {
            images = new ArrayList<>();
        }
        return images;
    }

    /**
     * Adds an image to this sitemap URL.
     * @param image the image to add
     */
    public void addImage(final SitemapImage image) {
        getImages().add(image);
    }

    /**

                createDefaultReadingConverter(), createDefaultNormalizer());
        SuggestItem item = items.get(0);
        assertEquals("検索エンジン", item.getText());
        assertEquals("tag1", item.getTags()[0]);
        assertEquals("role1", item.getRoles()[0]);
    }

    protected ReadingConverter createDefaultReadingConverter() throws IOException {
        ReadingConverterChain chain = new ReadingConverterChain();

                    buf.append(",\"labels\":[");
                    for (int i = 0; i < item.getTags().length; i++) {
                        if (i > 0) {
                            buf.append(',');
                        }
                        buf.append('\"').append(StringEscapeUtils.escapeJson(item.getTags()[i])).append('\"');
                    }
                    buf.append(']');

        source.put(ELEVATE_WORD_READING, elevateWord.getReadings());
        source.put(ELEVATE_WORD_FIELDS, elevateWord.getFields());
        source.put(ELEVATE_WORD_TAGS, elevateWord.getTags());
        source.put(ELEVATE_WORD_ROLES, elevateWord.getRoles());
        source.put(FieldNames.TIMESTAMP, DateTimeFormatter.ISO_INSTANT.format(ZonedDateTime.now()));

        final SitemapUrl sitemapUrl = (SitemapUrl) sitemaps[0];
        assertEquals("http://www.example.com/sample.html", sitemapUrl.getLoc());
        assertEquals(1, sitemapUrl.getImages().size());

        final SitemapImage image = sitemapUrl.getImages().get(0);
        assertEquals("http://www.example.com/image.jpg", image.getLoc());
        assertEquals("Sample image caption", image.getCaption());

        secondLine.put("userBoost", item.getUserBoost());
        secondLine.put("score", (item.getQueryFreq() + item.getDocFreq()) * item.getUserBoost());
        secondLine.put("tags", item.getTags());
        secondLine.put("roles", item.getRoles());
        secondLine.put("kinds", Arrays.toString(item.getKinds()));
        secondLine.put("@timestamp", item.getTimestamp());

        final ElevateWord normalized = new ElevateWord(normalizedWord, elevateWord.getBoost(), normalizedReadings, elevateWord.getFields(),
                elevateWord.getTags(), elevateWord.getRoles());
        settings.elevateWord().add(normalized);
        if (apply) {
            return index(normalized.toSuggestItem());
        }
        return new SuggestIndexResponse(0, 0, null, 0);

        final String attrPager = fessConfig.getLdapAttrPager();
        OptionalUtil.ofNullable(user.getPager())
                .filter(StringUtil::isNotBlank)
                .ifPresent(s -> modifyReplaceEntry(modifyList, attrPager, s))