import org.codelibs.jcifs.smb.ntlmssp.Type1Message;
import org.codelibs.jcifs.smb.ntlmssp.Type2Message;
import org.codelibs.jcifs.smb.ntlmssp.Type3Message;

/**
 * JcifsEngine is a NTLM Engine implementation based on JCIFS.
 *
 * @author shinsuke
 *
 */
public class JcifsEngine implements NTLMEngine {

    /** Flags for Type 1 NTLM message. */

 */
package org.codelibs.fess.crawler.client.http.ntlm;

import org.apache.http.impl.auth.NTLMEngine;
import org.apache.http.impl.auth.NTLMEngineException;

/**
 * SmbjEngine is a NTLM Engine implementation based on smbj.
 *
 * @author shinsuke
 *
 */
public class SmbjEngine implements NTLMEngine {

    /**
     * Creates a new SmbjEngine instance.
     */
    public SmbjEngine() {

     * Sitemap were changed. The value for the lastmod tag should be in W3C
     * Datetime format.
     *
     * By providing the last modification timestamp, you enable search engine
     * crawlers to retrieve only a subset of the Sitemaps in the index i.e. a
     * crawler may only retrieve Sitemaps that were modified since a certain
     * date. This incremental Sitemap fetching mechanism allows for the rapid

│   └── service/             # Core services
├── fess-crawler-lasta/       # LastaFlute DI integration
└── fess-crawler-opensearch/  # OpenSearch backend
```

### Key Components

#### Core Engine
- **Crawler**: Main orchestrator managing crawl execution
- **CrawlerContext**: Execution context and configuration
- **CrawlerThread**: Individual crawler thread implementation

#### Client Architecture

     * time they are accessed. The value "never" should be used to describe
     * archived URLs.
     *
     * Please note that the value of this tag is considered a hint and not a
     * command. Even though search engine crawlers may consider this information
     * when making decisions, they may crawl pages marked "hourly" less
     * frequently than that, and they may crawl pages marked "yearly" more

import org.opensearch.common.unit.TimeValue;
import org.opensearch.core.action.ActionListener;
import org.opensearch.core.action.ActionResponse;
import org.opensearch.index.IndexNotFoundException;
import org.opensearch.index.engine.VersionConflictEngineException;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.search.Scroll;
import org.opensearch.search.SearchHit;
import org.opensearch.threadpool.ThreadPool;