/
common_types.go
75 lines (58 loc) · 1.55 KB
/
common_types.go
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package common
import (
"fmt"
"strings"
)
type NamespacedName struct {
Name string `json:"-" yaml:"-"`
Namespace string `json:"-" yaml:"-"`
}
func (nsn NamespacedName) Empty() bool {
return nsn.Name == "" && nsn.Namespace == ""
}
func (nsn NamespacedName) String() (string, error) {
if nsn.Namespace == "" {
return nsn.Name, nil
}
if nsn.Name == "" {
return "", fmt.Errorf("namespace provided without a name")
}
return strings.Join([]string{nsn.Namespace, nsn.Name}, "/"), nil
}
func NamespacedNameFromString(namespacedName string) (NamespacedName, error) {
splits := strings.Split(namespacedName, "/")
if len(splits) < 2 {
return NamespacedName{
Name: namespacedName,
}, nil
}
if len(splits) > 2 {
return NamespacedName{}, fmt.Errorf("NamespacedName must be separated by at most one `/`")
}
if splits[0] == "" || splits[1] == "" {
return NamespacedName{}, fmt.Errorf("name and namespace must not be empty when separated by `/`")
}
return NamespacedName{
Namespace: splits[0],
Name: splits[1],
}, nil
}
// Optionally render structs until https://github.com/golang/go/issues/11939 is addressed
func (nsn NamespacedName) NonEmptyPtr() *NamespacedName {
if nsn.Empty() {
return nil
}
return &nsn
}
func (nsn NamespacedName) MarshalText() ([]byte, error) {
serialised, err := nsn.String()
if err != nil {
return nil, err
}
return []byte(serialised), nil
}
func (nsn *NamespacedName) UnmarshalText(bytes []byte) error {
deserialised, err := NamespacedNameFromString(string(bytes))
*nsn = deserialised
return err
}