final String queryString = queryLog.getQueryString();
        final String filterQueryString = queryLog.getFilterQueryString();

        final String[] tags = extractTags(tagFieldNames, tagFieldName -> {
            final List<String> results = new ArrayList<>(Arrays.asList(SuggestUtil.parseQuery(queryString, tagFieldName)));
            if (filterQueryString != null) {

- **Fault Tolerance**: Built-in retry mechanisms and error handling
- **Flexible Configuration**: XML-based dependency injection with LastaFlute DI
- **Extensible Architecture**: Plugin system for custom extractors, transformers, and clients
- **Rate Limiting**: Politeness policies and interval controllers
- **URL Filtering**: Regex-based inclusion/exclusion patterns

- **Transformer**: `HtmlTransformer`, `XmlTransformer`, `FileTransformer`, etc.
- **Extractor**: Weight-based selection (tries in descending weight order)

### Key Extractors

`TikaExtractor`, `PdfExtractor`, `MsWordExtractor`, `MsExcelExtractor`, `MsPowerPointExtractor`, `ZipExtractor`, `HtmlExtractor`, `MarkdownExtractor`, `EmlExtractor`

### Helpers