* This class coordinates the execution of data store crawling processes,
 * managing multiple concurrent crawling threads and handling the indexing
 * of crawled documents into the search engine.
 *
 * <p>The DataIndexHelper supports:</p>
 * <ul>
 *   <li>Concurrent crawling of multiple data configurations</li>
 *   <li>Thread pool management for crawler execution</li>

## Eine Taskfunktion erstellen

Erstellen Sie eine Funktion, die als Hintergrundtask ausgeführt werden soll.

Es handelt sich schlicht um eine Standard-Funktion, die Parameter empfangen kann.

Es kann sich um eine `async def`- oder normale `def`-Funktion handeln. **FastAPI** weiß, wie damit zu verfahren ist.

In diesem Fall schreibt die Taskfunktion in eine Datei (den Versand einer E-Mail simulierend).

import jakarta.annotation.Resource;

/**
 * API action for admin Stopwords dictionary management.
 * Provides REST endpoints for managing stopwords dictionary items in the Fess search engine.
 */
public class ApiAdminDictStopwordsAction extends FessApiAdminAction {

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

import org.opensearch.monitor.process.ProcessProbe;

/**
 * This class is a timer target for monitoring system-level statistics.
 * It collects and logs information about the operating system, process,
 * JVM, and search engine.
 */
public class SystemMonitorTarget extends MonitorTarget {
    private static final Logger logger = LogManager.getLogger(SystemMonitorTarget.class);

    /**
     * Constructs a new system monitor target.
     */

import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin path mapping management.
 * Provides RESTful API endpoints for managing path mapping settings in the Fess search engine.
 * Path mappings define URL path transformations and redirections for crawling and indexing.
 */
public class ApiAdminPathmapAction extends FessApiAdminAction {

import jakarta.annotation.Resource;

/**
 * API action for admin related content management.
 * Provides RESTful API endpoints for managing related content settings in the Fess search engine.
 * Related content settings define content relationships and associations for search results.
 */
public class ApiAdminRelatedcontentAction extends FessApiAdminAction {

import org.lastaflute.web.response.StreamResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin bad word management.
 * Provides REST endpoints for managing bad words in the Fess search engine.
 */
public class ApiAdminBadwordAction extends FessApiAdminAction {

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

            }
        }
    }

    public void test_getSearchEngineHttpAddress_withSpecialCharacters() {
        String testAddress = "https://search-engine.example.com:9200/path?param=value&other=test";
        String originalValue = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);

        try {

    assertThat(server.takeRequest().exchangeIndex).isEqualTo(0)
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(0)
  }

  /**
   * Regression test for an edge case where closing response body in the HTTP engine doesn't release
   * the corresponding stream allocation. This test keeps those response bodies alive and reads
   * them after the redirect has completed. This forces a connection to not be reused where it would

/**
 * Main executable class for running crawling operations in the Fess search engine.
 * This class serves as the entry point for crawling web content, file systems, and data stores.
 * It manages the crawling lifecycle, including initialization, execution coordination,
 * monitoring, and cleanup operations.
 *
 * <p>The crawler can operate in different modes based on command-line options:
 * <ul>
 * <li>Web crawling - crawls web sites and web content</li>