public void test_getFacetFields() {
        String[] fields = { "facet1", "facet2", "facet3" };
        queryFieldConfig.setFacetFields(fields);

        String[] result = queryFieldConfig.getFacetFields();
        assertSame(fields, result);
    }

    @Test
    public void test_setFacetFields() {
        String[] fields = { "facet1", "facet2", "facet3" };
        queryFieldConfig.setFacetFields(fields);

        assertTrue(queryFieldConfig.searchFieldSet.contains("field3"));
    }

    /**
     * Test that setting facet fields creates both array and Set.
     */
    @Test
    public void test_setFacetFields_createsSet() {
        String[] fields = { "facet1", "facet2", "facet3" };
        queryFieldConfig.setFacetFields(fields);

        // Verify array is set
        assertNotNull(queryFieldConfig.facetFields);

    /** Array of field names to create facets for */
    public String[] field;

    /** Array of query strings to create query facets for */
    public String[] query;

    /** Maximum number of facet values to return */
    public Integer size;

    /** Minimum document count required for a facet value to be included */
    public Long minDocCount;

    /** Sort order for facet values (e.g., "count.desc", "term.asc") */

    /**
     * List of field facets containing aggregated field values and their counts.
     */
    protected List<Field> fieldList = new ArrayList<>();

    /**
     * Constructs a FacetResponse from OpenSearch aggregations.
     * Processes both field facets and query facets from the aggregation results.
     *
     * @param aggregations the OpenSearch aggregations containing facet data, may be null
     */

    }

    /**
     * Gets the fields that can be used for faceted search.
     *
     * @return array of field names that can be used for faceted search
     */
    public String[] getFacetFields() {
        return facetFields;
    }

    /**
     * Sets the fields that can be used for faceted search.
     * Also updates the facetFieldSet for O(1) lookup performance.
     *

     */
    public void setExecTime(final long execTime) {
        this.execTime = execTime;
    }

    /**
     * Gets the facet response containing aggregated search facets and their counts.
     *
     * @return the facet response, or null if no facets were requested
     */
    public FacetResponse getFacetResponse() {
        return facetResponse;
    }

    /**

     */
    public void setDocumentItems(final List<Map<String, Object>> documentItems) {
        this.documentItems = documentItems;
    }

    /**
     * Sets the facet response containing aggregated search facets.
     *
     * @param facetResponse The facet response
     */
    public void setFacetResponse(final FacetResponse facetResponse) {
        this.facetResponse = facetResponse;
    }

    /**

import org.codelibs.fess.util.ComponentUtil;

import jakarta.annotation.PostConstruct;

/**
 * View class for managing facet query configurations and their display.
 * This class handles the setup and organization of query facets for the search interface,
 * including automatic generation of file type facets and custom query mappings.
 */
public class FacetQueryView {
    /** Logger instance for this class */

     */
    public boolean isPartialResults() {
        return partialResults;
    }

    /**
     * Gets the facet response containing aggregated facet information.
     *
     * @return The facet response, or null if no facets were requested
     */
    public FacetResponse getFacetResponse() {
        return facetResponse;
    }

    /**

- **Index Size**: Storage requirements for search indices
- **Crawl Sources**: URLs, file shares, databases being indexed
- **Custom Configurations**: URL patterns, security rules, metadata fields
- **Search Features**: Facets, suggestions, security filtering, ranking rules
- **Integration Points**: Applications consuming search APIs
- **User Permissions**: Access control and label configurations

### 2. Infrastructure Requirements