- **License Headers**: Required (Apache 2.0) - use `mvn license:format`
- **Logging**: Log4j2 - `src/main/resources/log4j2.xml`
- **i18n**: All user-facing strings in `fess_label_*.properties`
- **Default Port**: 8080 (configurable via `fess.port` system property)
- **Log Location**: `target/fess-logs/` (dev), `/var/log/fess/` (prod)
- **Admin Login**: `admin/admin`

## Log Message Guidelines

import org.opensearch.index.query.QueryBuilders;

/**
 * Query command implementation for handling fuzzy search queries.
 * This class converts Lucene FuzzyQuery objects into OpenSearch fuzzy query builders,
 * supporting configurable fuzzy matching parameters like edit distance and expansions.
 *
 */
public class FuzzyQueryCommand extends QueryCommand {
    private static final Logger logger = LogManager.getLogger(FuzzyQueryCommand.class);

    /**

import org.opensearch.index.query.QueryBuilders;

/**
 * Query command for handling wildcard queries.
 * Converts Lucene WildcardQuery objects to OpenSearch QueryBuilder objects,
 * supporting wildcard pattern matching with configurable case sensitivity.
 */
public class WildcardQueryCommand extends QueryCommand {

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

 *   <li>Header row detection and extraction</li>
 *   <li>Column name to data value association</li>
 *   <li>Quoted field handling</li>
 *   <li>Column names as metadata</li>
 *   <li>Configurable encoding and row limits</li>
 * </ul>
 */
public class CsvExtractor extends AbstractExtractor {
    /** Logger instance for this class. */
    private static final Logger logger = LogManager.getLogger(CsvExtractor.class);

            return teminated;
        }
    }

    /**
     * Thread that reads input stream data and buffers it for later retrieval.
     * Captures output from command execution with configurable line buffering.
     */
    protected static class InputStreamThread extends Thread {

        /** Buffered reader for input stream. */
        private BufferedReader br;

 * This callback processes file events (create, modify, delete) and manages document indexing and deletion
 * operations in the search engine. It supports recursive crawling with configurable depth and access count limits.
 *
 * <p>The implementation uses an executor service for concurrent processing of file operations and maintains

 * handles timeout scenarios, and ensures proper cleanup of resources.</p>
 *
 * <p>Key features:</p>
 * <ul>
 *   <li>Concurrent crawler process management with configurable limits</li>
 *   <li>Selective crawling based on configuration IDs</li>
 *   <li>Document expiration handling</li>
 *   <li>Hot thread monitoring for performance analysis</li>
 *   <li>Process isolation with separate JVM</li>

- Promoted HPA configurable tolerance to beta. The `HPAConfigurableTolerance` feature gate has now been enabled by default. ([#133128](https://github.com/kubernetes/kubernetes/pull/133128), [@jm-franc](https://github.com/jm-franc)) [SIG API Machinery and Autoscaling]

- Added a mechanism for configurable container restarts: _container-level restart rules_. This was an alpha feature behind the `ContainerRestartRules` feature gate. ([#132642](https://github.com/kubernetes/kubernetes/pull/132642), [@yuanwang04](https://github.com/yuanwang04)) [SIG...

- Graduated the AnonymousAuthConfigurableEndpoints feature gate to beta and enable by default to allow configurable endpoints for anonymous authentication. ([#127009](https://github.com/kubernetes/kubernetes/pull/127009), [@vinayakankugoyal](https://github.com/vinayakankugoyal)) [SIG Auth]