本文整理汇总了Golang中github.com/appc/spec/schema/types.Labels.Get方法的典型用法代码示例。如果您正苦于以下问题：Golang Labels.Get方法的具体用法？Golang Labels.Get怎么用？Golang Labels.Get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/appc/spec/schema/types.Labels的用法示例。
在下文中一共展示了Labels.Get方法的1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: GetACI
// GetACI retrieves the ACI that best matches the provided app name and labels.
// The returned value is the blob store key of the retrieved ACI.
// If there are multiple matching ACIs choose the latest one (defined as the
// last one imported in the store).
// If no version label is requested, ACIs marked as latest in the ACIInfo are
// preferred.
func (s Store) GetACI(name types.ACIdentifier, labels types.Labels) (string, error) {
var curaciinfo *ACIInfo
versionRequested := false
if _, ok := labels.Get("version"); ok {
versionRequested = true
}
var aciinfos []*ACIInfo
err := s.db.Do(func(tx *sql.Tx) error {
var err error
aciinfos, _, err = GetACIInfosWithAppName(tx, name.String())
return err
})
if err != nil {
return "", err
}
nextKey:
for _, aciinfo := range aciinfos {
im, err := s.GetImageManifest(aciinfo.BlobKey)
if err != nil {
return "", fmt.Errorf("error getting image manifest: %v", err)
}
// The image manifest must have all the requested labels
for _, l := range labels {
ok := false
for _, rl := range im.Labels {
if l.Name == rl.Name && l.Value == rl.Value {
ok = true
break
}
}
if !ok {
continue nextKey
}
}
if curaciinfo != nil {
// If no version is requested prefer the acis marked as latest
if !versionRequested {
if !curaciinfo.Latest && aciinfo.Latest {
curaciinfo = aciinfo
continue nextKey
}
if curaciinfo.Latest && !aciinfo.Latest {
continue nextKey
}
}
// If multiple matching image manifests are found, choose the latest imported in the cas.
if aciinfo.ImportTime.After(curaciinfo.ImportTime) {
curaciinfo = aciinfo
}
} else {
curaciinfo = aciinfo
}
}
if curaciinfo != nil {
return curaciinfo.BlobKey, nil
}
return "", fmt.Errorf("aci not found")
}