* Default constructor.
     */
    public SearchBody() {
        super();
    }

    // `size` is an alias of `num`.
    // `size` is prepared to be compatible with other Admin APIs
    /** Number of search results to retrieve (alias for num) */
    @ValidateTypeFailure
    public Integer size;

    @Override
    public void initialize() {
        if (size != null) {
            num = num == null || num < size ? size : num;

 * MIME type detection configuration. It reads extension-to-MIME-type override
 * mappings from FessConfig to handle cases where content-based detection
 * produces incorrect results (e.g., SQL files starting with REM comments
 * being misdetected as batch files).
 */
public class FessMimeTypeHelper extends MimeTypeHelperImpl {

import com.microsoft.aad.msal4j.IAuthenticationResult;

/**
 * Microsoft Entra ID credential implementation for Fess authentication.
 * Provides login credential functionality using Entra ID authentication results.
 */
public class EntraIdCredential implements LoginCredential, FessCredential {

    private static final Logger logger = LogManager.getLogger(EntraIdCredential.class);

    @Size(max = 100)
    public String docId;

    /** Highlight query parameters. */
    public String[] hq;

    /** Search query parameter for error page. */
    public String q;

    /** Number of results parameter for error page. */
    public String num;

    /** Sort parameter for error page. */
    public String sort;

    /** Language parameter for error page. */
    public String lang;

                buildReportTab("Incubating APIs Report", "incubation-reports/all-incubating.html")
            }
            if (stage.performanceTests.isNotEmpty()) {
                buildReportTab("Performance", "performance-test-results.zip!report/index.html")
            }
        }

        specificBuildTypes =
            stage.specificBuilds.map {
                it.create(model, stage, FlakyTestStrategy.EXCLUDE)
            }

| 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**

    //                                                                      ==============

    /**
     * Performs a search operation and populates the search render data with results.
     *
     * This method handles the complete search workflow including parameter processing,
     * query execution, result formatting, and logging. It supports automatic retry

        assertTrue(filled.getStackTrace().length > 0);
    }

    @Test
    public void test_getMessage_consistency() {
        // Test that getMessage returns consistent results
        String message = "Consistent message";
        JobNotFoundException exception = new JobNotFoundException(message);

        assertEquals(message, exception.getMessage());

import jakarta.annotation.Resource;
import jakarta.servlet.http.HttpServletResponse;

/**
 * Action class for handling thumbnail image requests.
 * Serves thumbnail images for documents in the search results.
 */
public class ThumbnailAction extends FessSearchAction {

    /**
     * Default constructor for ThumbnailAction.
     */
    public ThumbnailAction() {
        super();
    }

:{\"query\":\"hitCount:0\",\"language\":\"kuery\"},\"filter\":[],\"indexRefName\":\"kibanaSavedObjectMeta.searchSourceJSON.index\"}"},"title":"search-term-rank-of-no-results","uiStateJSON":"{\"vis\":{\"params\":{\"sort\":{\"columnIndex\":null,\"direction\":null}}}}","version":1,"visState":"{\"title\":\"search-term-rank-of-no-results\",\"type\":\"table\",\"params\":{\"perPage\":10,\"showPartialRows\":false,\"showMetricsAtAllLevels\":false,\"sort\":{\"columnIndex\":null,\"direction\":null},\"showT...