thumbnailManager.setImageExtention("jpg");
        thumbnailManager.setSplitSize(5);
        thumbnailManager.setSplitHashSize(20);

        String docid = "1234567890abcdef";
        String filename = thumbnailManager.getImageFilename(docid);
        assertNotNull(filename);
        assertTrue(filename.endsWith(".jpg"));
        assertTrue(filename.contains(docid));
    }

                case FessConfig.APP_ENCRYPT_PROPERTY_PATTERN:
                    return ".*password|.*key|.*token|.*secret";
                case FessConfig.APP_EXTENSION_NAMES:
                    return "jpg,jpeg,gif,png";

                case FessConfig.JOB_MAX_CRAWLER_PROCESSES:
                    return "3";
                case FessConfig.MAX_LOG_OUTPUT_LENGTH:
                    return "4000";

        if (path.endsWith(".png")) {
            return "image/png";
        }
        if (path.endsWith(".gif")) {
            return "image/gif";
        }
        if (path.endsWith(".jpg") || path.endsWith(".jpeg")) {
            return "image/jpeg";
        }
        return "application/octet-stream";
    }

    private static final int RETRY_AFTER_SECONDS = 60;

    private static final Set<String> STATIC_EXTENSIONS =
            Arrays.stream(new String[] { ".css", ".js", ".png", ".jpg", ".gif", ".ico", ".svg", ".woff", ".woff2", ".ttf", ".eot" })
                    .collect(Collectors.toSet());

    /**
     * Creates a new instance of LoadControlFilter.
     */
    public LoadControlFilter() {

        final String tempPath = "/tmp/source.pdf";
        final String outputPath = "/tmp/thumbnail.jpg";

        final String expandedCommand = testCommand.replace("${url}", tempPath).replace("${outputFile}", outputPath);

        assertEquals("convert /tmp/source.pdf -resize 100x100 /tmp/thumbnail.jpg", expandedCommand);
        assertFalse("Expanded command should not contain variables", expandedCommand.contains("${"));

        assertGetThumbnailUrl(data, expected);

        data = "<meta property=\"og:image\" content=\"/foo.jpg\" />";
        expected = "http://example.com/foo.jpg";
        assertGetThumbnailUrl(data, expected);

        data = "<img src=\"http://example/foo.jpg\">";
        expected = "http://example/foo.jpg";
        assertGetThumbnailUrl(data, expected);

        data = "<img src=\"http://example/foo.jpg\">" //

            return "";
        }
        return switch (mimeType) {
        case "image/gif" -> ".gif";
        case "image/tiff" -> ".tiff";
        case "image/svg+xml" -> ".svg";
        case "image/jpeg" -> ".jpg";
        case "image/png" -> ".png";
        case "image/bmp", "image/x-windows-bmp", "image/x-ms-bmp" -> ".bmp";

        DataStoreParams paramMap = new DataStoreParams();
        Pattern pattern = Pattern.compile(".*\\.jpg$");
        paramMap.put("url_exclude_pattern", pattern);

        boolean result1 = indexUpdateCallback.isUrlCrawlable(paramMap, "http://example.com/image.jpg");
        boolean result2 = indexUpdateCallback.isUrlCrawlable(paramMap, "http://example.com/image.png");

        assertFalse(result1);

    @Test
    public void test_generate() {
        // Initialize without container
        emptyGenerator = new EmptyGenerator();

        // Test that generate always returns false
        File outputFile = new File("test.jpg");
        assertFalse(emptyGenerator.generate("thumbnailId", outputFile));
        assertFalse(emptyGenerator.generate(null, outputFile));
        assertFalse(emptyGenerator.generate("thumbnailId", null));

supported.uploaded.js.extentions=js
# Supported CSS file extensions for upload.
supported.uploaded.css.extentions=css
# Supported media file extensions for upload.
supported.uploaded.media.extentions=jpg,jpeg,gif,png,swf
# Supported files for upload.
supported.uploaded.files=license.properties
# Supported languages.