}

    /**
     * Calculates the document expiration date based on crawling configuration.
     * If the config has a timeToLive value, calculates expiration from current time.
     * Otherwise, returns the stored document expiration time.
     *
     * @param config the crawling configuration containing time-to-live settings
     * @return the document expiration date, or null if no expiration is set
     */

      },
      "url": {
        "type": "keyword"
      },
      "order": {
        "type": "integer"
      },
      "requestedAt": {
        "type": "date",
        "format": "date_optional_time"
      },
      "queryRequestedAt": {
        "type": "date",
        "format": "date_optional_time"
      }
    }

    }

    /**
     * Gets the last modified date of the resource.
     *
     * @return the last modified date, or null if not available
     */
    public Date getLastModified() {
        return lastModified;
    }

    /**
     * Sets the last modified date of the resource.
     *
     * @param lastModified the last modified date to set
     */

    private final Collection<Artifact> artifacts = new ArrayList<>();

    LocalSnapshotMetadata(Artifact artifact, Date timestamp) {
        super(createMetadata(artifact), (Path) null, timestamp);
    }

    LocalSnapshotMetadata(Metadata metadata, Path path, Date timestamp) {
        super(metadata, path, timestamp);
    }

    private static Metadata createMetadata(Artifact artifact) {

	//
	// When reading, an extended timestamp is preferred over the legacy MS-DOS
	// date field, and the offset between the times is used as the timezone.
	// If only the MS-DOS date is present, the timezone is assumed to be UTC.
	//
	// When writing, an extended timestamp (which is timezone-agnostic) is
	// always emitted. The legacy MS-DOS date field is encoded according to the
	// location of the Modified time.
	Modified time.Time

		<Property name="backup.date.suffix" value="_%d{yyyyMMdd}" />
		<Property name="backup.max.history" value="10" />
		<Property name="stats.log.pattern" value="%msg%n" />
	</Properties>

	<Appenders>
		<RollingFile name="AppRollingFile" fileName="${log.file.basedir}/${domain.name}.log"
			filePattern="${log.file.basedir}/${domain.name}${backup.date.suffix}-%i.log.gz">

          },
          "queryId" : {
            "type" : "keyword"
          },
          "queryRequestedAt" : {
            "type" : "date",
            "format" : "date_optional_time"
          },
          "requestedAt" : {
            "type" : "date",
            "format" : "date_optional_time"
          },
          "url" : {
            "type" : "keyword"
          },
          "userSessionId" : {

                + ",creationTime=" + new Date(this.creationTime) + ",lastAccessTime=" + new Date(this.lastAccessTime) + ",lastWriteTime="
                + new Date(this.lastWriteTime) + ",changeTime=" + new Date(this.changeTime) + ",endOfFile=" + this.endOfFile

	// Add the algorithm condition, only accept AWS SignV4 Sha256.
	algorithmConditionStr := `["eq", "$x-amz-algorithm", "AWS4-HMAC-SHA256"]`
	// Add the date condition, only accept the current date.
	dateConditionStr := fmt.Sprintf(`["eq", "$x-amz-date", "%s"]`, t.Format(iso8601DateFormat))
	// Add the credential string, only accept the credential passed.

	"time"
)

// RFC3339 a subset of the ISO8601 timestamp format. e.g 2014-04-29T18:30:38Z
const (
	iso8601TimeFormat     = "2006-01-02T15:04:05.000Z"    // Reply date format with millisecond precision.
	iso8601TimeFormatLong = "2006-01-02T15:04:05.000000Z" // Reply date format with nanosecond precision.
)

// ISO8601Format converts time 't' into ISO8601 time format expected in AWS S3 spec.
//