import org.codelibs.fess.util.ComponentUtil;

/**
 * Entity class containing highlighting configuration for search result text highlighting.
 * This class manages highlighting parameters such as fragment size, number of fragments,
 * and highlighting type for displaying search query matches in result snippets.
 */
public class HighlightInfo {
    /** The highlighting type (e.g., plain, html). */
    private String type;

     * Adjusts fragment size for mobile devices.
     *
     * @return the highlight information
     */
    public HighlightInfo createHighlightInfo() {
        return LaRequestUtil.getOptionalRequest().map(req -> {
            final HighlightInfo highlightInfo = new HighlightInfo();
            final String widthStr = req.getParameter(SCREEN_WIDTH);
            if (StringUtil.isNotBlank(widthStr)) {

/**
 * Default implementation of RankFusionSearcher that performs standard OpenSearch queries.
 * This searcher handles query execution, response processing, and document highlighting.
 */
public class DefaultSearcher extends RankFusionSearcher {

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

    /**

# Whether to detect boundary position in query highlighting.
query.highlight.boundary.position.detect=true
# Type for text fragment in query highlighting.
query.highlight.text.fragment.type=query
# Size for text fragment in query highlighting.
query.highlight.text.fragment.size=3
# Prefix length for text fragment in query highlighting.
query.highlight.text.fragment.prefix.length=5

| Schema Fields | Define in crawl configuration or use default fields |
| RequestHandlers | Use Fess JSON API with parameters |
| Facet Fields | Configure in Fess search settings |
| Highlighting | Built-in in Fess search results |

---

### Other Search Systems

For proprietary or custom search systems:

#### API-Based Migration

**Step 1: Extract Documents**

        queryContext = new QueryContext("test", true);
        assertEquals("test", queryContext.getQueryString());

        // Verify that highlighting and field log are initialized
        assertNotNull(getMockRequest().getAttribute(Constants.HIGHLIGHT_QUERIES));
        assertNotNull(getMockRequest().getAttribute(Constants.FIELD_LOGS));
    }

        }

        /**
         * The list of documents returned in the search results.
         */
        protected List<Map<String, Object>> docs;
        /**
         * Parameters for highlighting search results.
         */
        protected String highlightParams;
        /**
         * The execution time of the search query.
         */
        protected String execTime;
        /**

/**
 * Configuration class for query field mappings in the Fess search engine.
 * This class manages field configurations for various query operations including
 * response fields, search fields, facet fields, sort fields, and highlighting.
 * It initializes field mappings from the FessConfig and provides methods to
 * query field properties and capabilities.
 */
public class QueryFieldConfig {

    /**
     * Default constructor.
     */

    /** Text fragments feature identifier. */
    public static final String TEXT_FRAGMENTS = "text_fragments";

    /** Text fragment type for query highlighting. */
    public static final String TEXT_FRAGMENT_TYPE_QUERY = "query";

    /** Text fragment type for result highlighting. */
    public static final String TEXT_FRAGMENT_TYPE_HIGHLIGHT = "highlight";

    /** Crawler statistics key identifier. */

     * comment: Unicode terminal characters for query highlighting.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getQueryHighlightTerminalChars();

    /**
     * Get the value for the key 'query.highlight.fragment.size'. <br>
     * The value is, e.g. 60 <br>
     * comment: Fragment size for query highlighting.