示例#1
0
文件: storage.go 项目: mhilton/juju
func (a *API) ListVolumes(filter params.VolumeFilter) (params.VolumeItemsResult, error) {
	if !filter.IsEmpty() {
		return params.VolumeItemsResult{Results: a.filterVolumes(filter)}, nil
	}
	volumes, err := a.listVolumeAttachments()
	if err != nil {
		return params.VolumeItemsResult{}, common.ServerError(err)
	}
	return params.VolumeItemsResult{Results: volumes}, nil
}
示例#2
0
文件: storage.go 项目: kat-co/juju
func filterVolumes(
	st storageAccess,
	f params.VolumeFilter,
) ([]state.Volume, map[names.VolumeTag][]state.VolumeAttachment, error) {
	if f.IsEmpty() {
		// No filter was specified: get all volumes, and all attachments.
		volumes, err := st.AllVolumes()
		if err != nil {
			return nil, nil, errors.Trace(err)
		}
		volumeAttachments := make(map[names.VolumeTag][]state.VolumeAttachment)
		for _, v := range volumes {
			attachments, err := st.VolumeAttachments(v.VolumeTag())
			if err != nil {
				return nil, nil, errors.Trace(err)
			}
			volumeAttachments[v.VolumeTag()] = attachments
		}
		return volumes, volumeAttachments, nil
	}
	volumesByTag := make(map[names.VolumeTag]state.Volume)
	volumeAttachments := make(map[names.VolumeTag][]state.VolumeAttachment)
	for _, machine := range f.Machines {
		machineTag, err := names.ParseMachineTag(machine)
		if err != nil {
			return nil, nil, errors.Trace(err)
		}
		attachments, err := st.MachineVolumeAttachments(machineTag)
		if err != nil {
			return nil, nil, errors.Trace(err)
		}
		for _, attachment := range attachments {
			volumeTag := attachment.Volume()
			volumesByTag[volumeTag] = nil
			volumeAttachments[volumeTag] = append(volumeAttachments[volumeTag], attachment)
		}
	}
	for volumeTag := range volumesByTag {
		volume, err := st.Volume(volumeTag)
		if err != nil {
			return nil, nil, errors.Trace(err)
		}
		volumesByTag[volumeTag] = volume
	}
	volumes := make([]state.Volume, 0, len(volumesByTag))
	for _, volume := range volumesByTag {
		volumes = append(volumes, volume)
	}
	return volumes, volumeAttachments, nil
}