本文整理汇总了Golang中github.com/juju/juju/apiserver/params.VolumeFilter.IsEmpty方法的典型用法代码示例。如果您正苦于以下问题：Golang VolumeFilter.IsEmpty方法的具体用法？Golang VolumeFilter.IsEmpty怎么用？Golang VolumeFilter.IsEmpty使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/juju/juju/apiserver/params.VolumeFilter的用法示例。
在下文中一共展示了VolumeFilter.IsEmpty方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: ListVolumes
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: filterVolumes
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
}