return Collections.emptyList();
            }
        };
        ComponentUtil.register(client, "searchEngineClient");
        final DocList docList = new DocList();
        indexingHelper.sendDocuments(client, docList);
        assertEquals(0, docList.size());
        assertEquals(0, sentDocList.size());
        assertNull(sentIndex.get());

    public EngineInfo getEngineInfo() {
        if (client instanceof final HttpClient httpClient) {
            return httpClient.getEngineInfo();
        }
        throw new SearchEngineClientException("client is not HttpClient.");
    }

    //
    // Fesen Client
    //

    @Override
    public ThreadPool threadPool() {
        return client.threadPool();
    }

    @Override

            return 0L;
        }
        final SearchEngineClient client = ComponentUtil.getSearchEngineClient();
        if (bulkRequestBuilder == null) {
            bulkRequestBuilder = client.prepareBulk();
        }
        final String index = fessConfig.getIndexDocumentUpdateIndex();
        for (final String id : ids) {
            bulkRequestBuilder.add(client.prepareUpdate().setIndex(index).setId(id)

import org.codelibs.fess.Constants;
import org.codelibs.fess.app.service.RequestHeaderService;
import org.codelibs.fess.app.service.WebAuthenticationService;
import org.codelibs.fess.crawler.client.CrawlerClientFactory;
import org.codelibs.fess.crawler.client.http.Authentication;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.mylasta.direction.FessProp;

import org.codelibs.core.io.SerializeUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.crawler.builder.RequestDataBuilder;
import org.codelibs.fess.crawler.client.CrawlerClient;
import org.codelibs.fess.crawler.client.CrawlerClientFactory;
import org.codelibs.fess.crawler.entity.RequestData;
import org.codelibs.fess.crawler.entity.ResponseData;
import org.codelibs.fess.crawler.entity.ResultData;

                return getResourcePath(getProperty(SPNEGO_KRB5_CONF, "krb5.conf"));
            }
            if (SpnegoHttpFilter.Constants.CLIENT_MODULE.equals(name)) {
                return getProperty(SPNEGO_LOGIN_CLIENT_MODULE, "spnego-client");
            }
            if (SpnegoHttpFilter.Constants.SERVER_MODULE.equals(name)) {
                return getProperty(SPNEGO_LOGIN_SERVER_MODULE, "spnego-server");

import org.codelibs.fess.Constants;
import org.codelibs.fess.app.service.WebConfigService;
import org.codelibs.fess.crawler.client.http.Authentication;
import org.codelibs.fess.crawler.client.http.form.FormScheme;
import org.codelibs.fess.crawler.client.http.impl.AuthenticationImpl;
import org.codelibs.fess.crawler.client.http.ntlm.JcifsEngine;
import org.codelibs.fess.crawler.exception.CrawlerSystemException;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.crawler.client.CrawlerClientFactory;
import org.codelibs.fess.crawler.client.ftp.FtpClient;
import org.codelibs.fess.crawler.client.http.HcHttpClient;
import org.codelibs.fess.crawler.client.smb.SmbClient;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;

    protected static final String AZUREAD_TENANT = "aad.tenant";

    protected static final String AZUREAD_CLIENT_SECRET = "aad.client.secret";

    protected static final String AZUREAD_CLIENT_ID = "aad.client.id";

    protected static final String AZUREAD_REPLY_URL = "aad.reply.url";

    protected static final String STATES = "aadStates";

    }

    public static long scroll(final String index, final Function<SearchHit, Boolean> callback) {
        final SearchEngineClient client = ComponentUtil.getSearchEngineClient();
        return client.<SearchHit> scrollSearch(index, searchRequestBuilder -> true, (searchResponse, hit) -> hit,
                hit -> callback.apply(hit));
    }