final SetObjectTagsArgs args =
                    SetObjectTagsArgs.builder().bucket(fessConfig.getStorageBucket()).object(objectName).tags(tags).build();
            createClient(fessConfig).setObjectTags(args);
        } catch (final Exception e) {
            throw new StorageException("Failed to update tags for " + objectName, e);
        }
    }

import org.opensearch.common.settings.Settings;
import org.opensearch.common.settings.Settings.Builder;

public class CrawlerEngineClient extends FesenClient {
    @Override
    protected Client createClient() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String[] hosts =

  return mimeType.toMediaTypeOrNull()
}

private fun isSpecialHeader(s: String): Boolean {
  return s.equals("Content-Type", ignoreCase = true)
}

fun Main.commonRun() {
  client = createClient()
  val request = createRequest()

  try {
    val response = client!!.newCall(request).execute()
    if (showHeaders) {
      println(StatusLine.get(response))
      val headers = response.headers

        onConnectListenerList.add(listener);
    }

    public boolean connected() {
        return connected;
    }

    public void connect() {
        destroy();
        client = createClient();

        final ClusterHealthResponse healthResponse =
                get(c -> c.admin().cluster().prepareHealth(targetIndices).setWaitForYellowStatus().execute());
        if (!healthResponse.isTimedOut()) {

    LoggingUtil.configureLogging(debug = verbose, showHttp2Frames = showHttp2Frames, sslDebug = sslDebug)

    commonRun()
  }

  fun createRequest(): Request = commonCreateRequest()

  fun createClient(): Call.Factory {
    val builder = OkHttpClient.Builder()
    builder.followSslRedirects(followRedirects)
    if (connectTimeout != DEFAULT_TIMEOUT) {
      builder.connectTimeout(connectTimeout.toLong(), SECONDS)
    }