import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.lucene.search.TotalHits.Relation;
import org.codelibs.core.collection.ArrayUtil;
import org.codelibs.core.concurrent.CommonPoolUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.stream.StreamUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.entity.FacetInfo;
import org.codelibs.fess.entity.GeoInfo;

import org.codelibs.fess.query.QueryFieldConfig;
import org.codelibs.fess.query.parser.QueryParser;
import org.codelibs.fess.score.QueryRescorer;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.core.message.UserMessages;
import org.lastaflute.web.util.LaRequestUtil;
import org.opensearch.action.search.SearchRequestBuilder;

import java.util.List;
import java.util.Map;
import java.util.function.Consumer;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.lang.ThreadUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.crawler.Crawler;
import org.codelibs.fess.crawler.entity.AccessResult;
import org.codelibs.fess.crawler.entity.AccessResultData;

                    }

                    if (!docMap.containsKey(Constants.SCORE)) {
                        final float score = hit.getScore();
                        if (Float.isFinite(score)) {
                            docMap.put(Constants.SCORE, score);
                        }
                    }

                    docMap.put(fessConfig.getIndexFieldId(), hit.getId());

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

    /** Field name for document score in search results */
    public static final String SCORE_FIELD = "score";

    /** Field name for OpenSearch document score */
    public static final String DOC_SCORE_FIELD = "_score";

    /** Field name for site information in search results */
    public static final String SITE_FIELD = "site";

            return sessionId.substring(0, idx);
        }
        return sessionId;
    }

    /**
     * Stores crawling information and parameters for the specified session.
     * Creates a new crawling info record if none exists or if create flag is true.
     * Also stores any accumulated information parameters and clears the info map.
     *
     * @param sessionId the session ID for the crawling information

                }
            }
        } else {
            targetFile = file;
        }
        return targetFile;
    }

    /**
     * Stores response data as a file on the file system.
     *
     * @param responseData the response data to store
     * @param resultData the result data to populate with file information
     * @throws CrawlerSystemException if file storage fails
     */
    @Override

    
    public int getScore() {
        // Score interface for selection (higher is better)
        int score = linkSpeed;  // Base score is link speed
        
        if (rssCapable) score += 1000;   // Prefer RSS-capable
        if (rdmaCapable) score += 2000;  // Prefer RDMA-capable
        if (!ipv6) score += 100;         // Slight preference for IPv4
        
        return score;
    }
    

            builder.setSize(size);
        }

        // set query.
        final QueryBuilder q = buildQuery(query, fields);

        // set function score
        final QueryBuilder queryBuilder = buildFunctionScoreQuery(query, q);
        builder.addSort("_score", SortOrder.DESC);

        // set filter query.
        final List<QueryBuilder> filterList = new ArrayList<>(10);
        if (!tags.isEmpty()) {

#### Configuration Migration

Map Solr configuration to Fess:

| Solr Feature | Fess Equivalent |
|--------------|----------------|
| Solr Core | Fess doesn't use cores; all documents in one index |
| Schema Fields | Define in crawl configuration or use default fields |
| RequestHandlers | Use Fess JSON API with parameters |
| Facet Fields | Configure in Fess search settings |