* </p>
 */
public class HtmlTransformer extends AbstractTransformer {

    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(HtmlTransformer.class);

    /**
     * Constructs a new HtmlTransformer.
     */
    public HtmlTransformer() {
        // Default constructor
    }

```

**Rule**: Pattern-based response routing (`RegexRule`, `SitemapsRule`)
**ResponseProcessor**: `DefaultResponseProcessor`, `SitemapsResponseProcessor`, `NullResponseProcessor`
**Transformer**: `HtmlTransformer`, `XmlTransformer`, `FileTransformer`, etc.
**Extractor**: Weight-based selection (tries in descending weight order)

### Key Extractors