return 0;
        }

        @Override
        public int getEffectiveMinorVersion() {
            return 0;
        }

        @Override
        public String getMimeType(String file) {
            return null;
        }

        @Override
        public java.util.Set<String> getResourcePaths(String path) {
            return null;
        }

        @Override

            return 0;
        }

        @Override
        public int getEffectiveMinorVersion() {
            return 0;
        }

        @Override
        public String getMimeType(String file) {
            return null;
        }

        @Override
        public java.util.Set<String> getResourcePaths(String path) {
            return null;
        }

        @Override

            return 3;
        }

        @Override
        public int getEffectiveMinorVersion() {
            return 0;
        }

        @Override
        public String getMimeType(String file) {
            return null;
        }

        @Override
        public java.util.Set<String> getResourcePaths(String path) {
            return null;
        }

        @Override

            return 200;
        }

        @Override
        public String getMethod() {
            return "GET";
        }

        @Override
        public String getMimeType() {
            return "text/html";
        }

        @Override
        public Long getCreateTime() {
            return System.currentTimeMillis();
        }

        @Override

        assertEquals("http://example.com/document.pdf", responseData.getUrl());

        responseData.setMimeType("application/pdf");
        assertEquals("application/pdf", responseData.getMimeType());

        responseData.setCharSet("UTF-8");
        assertEquals("UTF-8", responseData.getCharSet());

        responseData.setHttpStatusCode(200);
        assertEquals(200, responseData.getHttpStatusCode());

        if (extractorFactory == null) {
            throw new FessSystemException("Could not find extractorFactory.");
        }
        Extractor extractor = extractorFactory.getExtractor(responseData.getMimeType());
        if (extractor == null) {
            extractor = ComponentUtil.getComponent("tikaExtractor");
            if (extractor == null) {
                throw new FessSystemException("Could not find tikaExtractor.");

        if (extractorFactory == null) {
            throw new FessSystemException("Could not find extractorFactory.");
        }
        final Extractor extractor = extractorFactory.getExtractor(responseData.getMimeType());
        if (logger.isDebugEnabled()) {
            logger.debug("url={}, extractor={}", responseData.getUrl(), extractor);
        }
        return extractor;
    }

     * @return true if the MIME type represents a supported image format, false otherwise
     */
    protected boolean isImageMimeType(final ResponseData responseData) {
        final String mimeType = responseData.getMimeType();
        if (mimeType == null) {
            return true;
        }

        return switch (mimeType) {
        case "image/png", "image/gif", "image/jpeg", "image/bmp" -> true;
        default -> false;

        final CrawlingConfig crawlingConfig = crawlingConfigHelper.get(responseData.getSessionId());
        final Extractor extractor = getExtractor(responseData);
        final String mimeType = responseData.getMimeType();
        final StringBuilder contentMetaBuf = new StringBuilder(1000);
        final Map<String, Object> dataMap = new HashMap<>();
        final Map<String, Object> metaDataMap = new HashMap<>();
        String content;

            return false;
        }

        return process(thumbnailId, responseData -> {
            final String mimeType = responseData.getMimeType();
            final String extension = getExtensionFromMimeType(mimeType);
            final File tempFile = ComponentUtil.getSystemHelper().createTempFile("thumbnail_", extension);
            try {