*   to return the result of the computation.
 * </p>
 *
 * @param <RESPONSE> The type of the response.
 */
public class Deferred<RESPONSE extends Response> {
    /**
     * Constructs a new Deferred object.
     */
    public Deferred() {
        // nothing
    }

    private RESPONSE response = null;

    private Throwable error = null;

import org.codelibs.jcifs.smb.impl.SmbFileInputStream;

/**
 * The {@link SmbClient} class is a crawler client implementation for accessing files and directories
 * on SMB (Server Message Block) shares. It extends {@link AbstractCrawlerClient} and utilizes the JCIFS library
 * to interact with SMB resources.
 *
 * <p>
 * This client supports authentication, content retrieval, and metadata extraction from SMB files.

import org.dbflute.utflute.core.PlainTestCase;
import org.jodconverter.local.office.LocalOfficeManager;

/**
 * @author shinsuke
 *
 */
public class JodExtractorTest extends PlainTestCase {
    private static final Logger logger = LogManager.getLogger(JodExtractorTest.class);

    public JodExtractor jodExtractor;

    @Override
    protected void setUp() throws Exception {

import io.minio.MakeBucketArgs;
import io.minio.MinioClient;
import io.minio.PutObjectArgs;
import io.minio.SetObjectTagsArgs;

/**
 * @author shinsuke
 *
 */
public class StorageClientTest extends PlainTestCase {

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

    private static final String IMAGE_NAME = "minio/minio:RELEASE.2022-06-02T02-11-04Z";

 * Provides common functionality for extracting text content from XML-like documents.
 * It handles encoding detection, HTML entity unescaping, and tag-based content extraction.
 *
 */
public abstract class AbstractXmlExtractor extends AbstractExtractor {

    /**
     * Logger for this class.
     */
    protected static final Logger logger = LogManager.getLogger(AbstractXmlExtractor.class);

    /**
     * UTF-7 Byte Order Mark definition.

import jakarta.annotation.PostConstruct;

/**
 * OpenSearchUrlFilterService is an implementation of {@link UrlFilterService} for OpenSearch.
 */
public class OpenSearchUrlFilterService extends AbstractCrawlerService implements UrlFilterService {

    /**
     * Field name for filter type.
     */
    private static final String FILTER_TYPE = "filterType";

    /**
     * Filter type for include filters.

import org.codelibs.nekohtml.parsers.DOMParser;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;

/**
 * Extracts text content from HTML documents.
 */
public class HtmlExtractor extends AbstractXmlExtractor {
    /** Logger for this class. */
    protected static final Logger logger = LogManager.getLogger(HtmlExtractor.class);

    /** Pattern for extracting charset from meta tags. */

import com.google.common.base.Charsets;

import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;

/**
 * Extract a text by using external http server.
 */
public class ApiExtractor extends AbstractExtractor {

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

    /** The URL of the API endpoint. */
    protected String url;

    /** The access timeout in seconds. */

import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class for CrawlerStatus enum.
 * Tests all enum functionality including values, valueOf, ordinal, and serialization.
 */
public class CrawlerStatusTest extends PlainTestCase {

    /**
     * Test that all expected enum values exist
     */
    public void test_enumValues() {
        CrawlerStatus[] values = CrawlerStatus.values();

        assertNotNull(values);

import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;

import jakarta.annotation.Resource;

/**
 * <p>
 * XmlTransformer is a class that extends AbstractTransformer to transform XML documents into a specific format for indexing.
 * It uses XPath expressions to extract data from the XML and stores it in a ResultData object.
 * </p>
 *
 * <p>