Method UpdateMeta

object.go:980–1026

UpdateMeta will update the meta for the object.

(name string, meta *ObjectMeta)

// UpdateMeta will update the meta for the object.
func (obs *obs) UpdateMeta(name string, meta *ObjectMeta) error {
	if meta == nil {
		return ErrBadObjectMeta
	}

	// Grab the current meta.
	info, err := obs.GetInfo(name)
	if err != nil {
		if errors.Is(err, ErrObjectNotFound) {
			return ErrUpdateMetaDeleted
		}
		return err
	}

	// If the new name is different from the old, and it exists, error
	// If there was an error that was not ErrObjectNotFound, error.
	if name != meta.Name {
		existingInfo, err := obs.GetInfo(meta.Name, GetObjectInfoShowDeleted())
		if err != nil && !errors.Is(err, ErrObjectNotFound) {
			return err
		}
		if err == nil && !existingInfo.Deleted {
			return ErrObjectAlreadyExists
		}
	}

	// Update Meta prevents update of ObjectMetaOptions (Link, ChunkSize)
	// These should only be updated internally when appropriate.
	info.Name = meta.Name
	info.Description = meta.Description
	info.Headers = meta.Headers
	info.Metadata = meta.Metadata

	// Prepare the meta message
	if err = publishMeta(info, obs.js); err != nil {
		return err
	}

	// did the name of this object change? We just stored the meta under the new name
	// so delete the meta from the old name via purge stream for subject
	if name != meta.Name {
		metaSubj := fmt.Sprintf(objMetaPreTmpl, obs.name, encodeName(name))
		return obs.js.purgeStream(obs.stream, &StreamPurgeRequest{Subject: metaSubj})
	}

	return nil
}

// Seal will seal the object store, no further modifications will be allowed.
func (obs *obs) Seal() error {