errInvalidRuleStatus              = Errorf("Status must be set to either Enabled or Disabled")
	errInvalidRuleDelMarkerExpiration = Errorf("Rule with DelMarkerExpiration cannot have tags based filtering")
)

// validateID - checks if ID is valid or not.
func (r Rule) validateID() error {
	if len(r.ID) > 255 {
		return errInvalidRuleID
	}
	return nil
}

	if w.f != nil {
		if err := w.closeCurrentFile(); err != nil {
			return err
		}

		// This function is a no-op if opts.Compress is false
		// writes an error in JSON form to stderr, if we cannot
		// compress.
		if err := w.compress(); err != nil {
			msg := fmt.Sprintf("unable to compress log file %v: %v, ignoring and moving on", w.f.Name(), err)
			stdErrEnc.Encode(&log.Entry{
				Level:   ErrorKind,

	Start, End int64
}

// GetLength - get length of range
func (h *HTTPRangeSpec) GetLength(resourceSize int64) (rangeLength int64, err error) {
	switch {
	case resourceSize < 0:
		return 0, errors.New("Resource size cannot be negative")

	case h == nil:
		rangeLength = resourceSize

	case h.IsSuffixLength:
		specifiedLen := -h.Start
		rangeLength = specifiedLen
		if specifiedLen > resourceSize {
			rangeLength = resourceSize