* @param searchHit the search hit to parse
     * @return the parsed document as a map
     */
    protected Map<String, Object> parseSearchHit(final FessConfig fessConfig, final String hlPrefix, final SearchHit searchHit) {
        final Map<String, Object> docMap = new HashMap<>(32);
        if (searchHit.getSourceAsMap() == null) {
            searchHit.getFields().forEach((key, value) -> {

                    java.util.function.BiFunction<org.opensearch.action.update.UpdateRequestBuilder, org.opensearch.search.SearchHit, org.opensearch.action.update.UpdateRequestBuilder> processor) {
                // Return a fixed count for testing
                return 3L;
            }
        };

     * @return the number of documents processed
     */
    public static long scroll(final String index, final Function<SearchHit, Boolean> callback) {
        final SearchEngineClient client = ComponentUtil.getSearchEngineClient();
        return client.<SearchHit> scrollSearch(index, searchRequestBuilder -> true, (searchResponse, hit) -> hit,
                hit -> callback.apply(hit));
    }

    /**

import org.opensearch.action.update.UpdateRequestBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.script.Script;
import org.opensearch.script.ScriptType;
import org.opensearch.search.SearchHit;

/**
 * This class is a base class for score boosters.
 */
public abstract class ScoreBooster {
    /**
     * Constructor.
     */
    public ScoreBooster() {
        super();
    }

                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                final BulkRequestBuilder bulkRequest = client.prepareBulk();
                for (final SearchHit hit : hits) {

                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                final BulkRequestBuilder bulkRequest = client.prepareBulk();
                for (final SearchHit hit : hits) {

                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                final BulkRequestBuilder bulkRequest = client.prepareBulk();
                for (final SearchHit hit : hits) {

                final SearchHits searchHits = response.getHits();
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                final BulkRequestBuilder bulkRequest = client.prepareBulk();
                for (final SearchHit hit : hits) {
                    final UpdateRequestBuilder requestBuilder =

import org.opensearch.common.xcontent.XContentType;
import org.opensearch.core.xcontent.MediaType;
import org.opensearch.core.xcontent.ToXContent;
import org.opensearch.core.xcontent.XContentBuilder;
import org.opensearch.search.SearchHit;

public class SearchEngineUtilTest extends UnitFessTestCase {

    public void test_getXContentBuilderOutputStream_success() {
        XContentBuilderCallback callback = (builder, params) -> {