import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
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 java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.FailureUrlPager;
import org.codelibs.fess.app.service.FailureUrlService;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.ApiResult.ApiLogResponse;
import org.codelibs.fess.app.web.api.ApiResult.ApiResponse;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.CrawlingInfoPager;
import org.codelibs.fess.app.service.CrawlingInfoService;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.ApiResult.ApiLogResponse;
import org.codelibs.fess.app.web.api.ApiResult.ApiResponse;

import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.StemmerOverridePager;
import org.codelibs.fess.app.service.StemmerOverrideService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.admin.dict.stemmeroverride.UploadForm;
import org.codelibs.fess.app.web.api.ApiResult;

}

// Populates prometheus with bucket usage metrics, this metrics
// is only enabled if scanner is enabled.
func bucketUsageMetricsPrometheus(ch chan<- prometheus.Metric) {
	objLayer := newObjectLayerFn()
	// Service not initialized yet
	if objLayer == nil {
		return
	}

	dataUsageInfo, err := loadDataUsageFromBackend(GlobalContext, objLayer)
	if err != nil {
		return
	}

		return auth.Credentials{}, s3Err
	}

	user, _, s3Err := getReqAccessKeyV4(r, globalSite.Region(), serviceSTS)
	if s3Err != ErrNone {
		return auth.Credentials{}, s3Err
	}

	// Temporary credentials or Service accounts cannot generate further temporary credentials.
	if user.IsTemp() || user.IsServiceAccount() {
		return auth.Credentials{}, ErrAccessDenied
	}

	// Session tokens are not allowed in STS AssumeRole requests.

  /**
   * <a
   * href="https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/iPhoneOTAConfiguration/profile-service/profile-service.html">Apple
   * over-the-air mobile configuration profiles</a>.
   *
   * @since 18.0
   */
  public static final MediaType APPLE_MOBILE_CONFIG =

		getScope(cr.seedDate, cr.region) + "\n" +
		cr.seedSignature + "\n" +
		emptySHA256 + "\n" +
		hashedChunk

	// Get hmac signing key.
	signingKey := getSigningKey(cr.cred.SecretKey, cr.seedDate, cr.region, serviceS3)

	// Calculate signature.
	newSignature := getSignature(signingKey, stringToSign)

	return newSignature
}

// getTrailerChunkSignature - get trailer chunk signature.

import org.opensearch.search.aggregations.metrics.Avg;
import org.opensearch.search.aggregations.metrics.Cardinality;

import jakarta.annotation.Resource;

/**
 * Service class for managing search logs and related analytics.
 *
 * This service provides functionality for querying, aggregating, and managing
 * various types of search logs including search logs, click logs, favorite logs,

func newUnsignedV4ChunkedReader(req *http.Request, trailer bool, signature bool) (io.ReadCloser, APIErrorCode) {
	if signature {
		if errCode := doesSignatureMatch(unsignedPayloadTrailer, req, globalSite.Region(), serviceS3); errCode != ErrNone {
			return nil, errCode
		}
	}
	if trailer {
		// Discard anything unsigned.
		req.Trailer = make(http.Header)
		trailers := req.Header.Values(awsTrailerHeader)