Files
troubleshoot/pkg/multitype/boolstring.go
2020-03-09 17:37:27 -07:00

119 lines
3.3 KiB
Go

// Based on https://github.com/kubernetes/apimachinery/blob/455a99f/pkg/util/intstr/intstr.go
package multitype
import (
"encoding/json"
"fmt"
fuzz "github.com/google/gofuzz"
)
// BoolOrString is a type that can hold an bool or a string. When used in
// JSON or YAML marshalling and unmarshalling, it produces or consumes the
// inner type. This allows you to have, for example, a JSON field that can
// accept a booolean string or raw bool.
//
// +protobuf=true
// +protobuf.options.(gogoproto.goproto_stringer)=false
// +k8s:openapi-gen=true
// +kubebuilder:validation:Type=BoolString
type BoolOrString struct {
Type BoolOrStringType `protobuf:"varbool,1,opt,name=type,casttype=Type" json:"-"`
BoolVal bool `protobuf:"varbool,2,opt,name=boolVal" json:"-"`
StrVal string `protobuf:"bytes,3,opt,name=strVal" json:"-"`
}
// Type represents the stored type of BoolOrString.
type BoolOrStringType int
const (
Bool BoolOrStringType = iota // The BoolOrString holds an bool.
String // The BoolOrString holds a string.
)
// FromBool creates an BoolOrString object with a bool value.
func FromBool(val bool) BoolOrString {
return BoolOrString{Type: Bool, BoolVal: val}
}
// FromString creates an BoolOrString object with a string value.
func FromString(val string) BoolOrString {
return BoolOrString{Type: String, StrVal: val}
}
// Parse the given string
func Parse(val string) BoolOrString {
return FromString(val)
}
// UnmarshalJSON implements the json.Unmarshaller boolerface.
func (boolstr *BoolOrString) UnmarshalJSON(value []byte) error {
if value[0] == '"' {
boolstr.Type = String
return json.Unmarshal(value, &boolstr.StrVal)
}
boolstr.Type = Bool
return json.Unmarshal(value, &boolstr.BoolVal)
}
// String returns the string value, '1' for true, or '' for false.
func (boolstr *BoolOrString) String() string {
if boolstr.Type == String {
return boolstr.StrVal
} else if boolstr.BoolVal {
return "1"
} else {
return ""
}
}
// MarshalJSON implements the json.Marshaller interface.
func (boolstr BoolOrString) MarshalJSON() ([]byte, error) {
switch boolstr.Type {
case Bool:
return json.Marshal(boolstr.BoolVal)
case String:
return json.Marshal(boolstr.StrVal)
default:
return []byte{}, fmt.Errorf("impossible BoolOrString.Type")
}
}
// MarshalYAML implements the yaml.Marshaller interface https://godoc.org/gopkg.in/yaml.v3#Marshaler
func (boolstr BoolOrString) MarshalYAML() (interface{}, error) {
switch boolstr.Type {
case Bool:
return boolstr.BoolVal, nil
case String:
return boolstr.StrVal, nil
default:
return []byte{}, fmt.Errorf("impossible BoolOrString.Type")
}
}
// OpenAPISchemaType is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
//
// See: https://github.com/kubernetes/kube-openapi/tree/master/pkg/generators
func (BoolOrString) OpenAPISchemaType() []string { return []string{"string"} }
// OpenAPISchemaFormat is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
func (BoolOrString) OpenAPISchemaFormat() string { return "bool-or-string" }
func (boolstr *BoolOrString) Fuzz(c fuzz.Continue) {
if boolstr == nil {
return
}
if c.RandBool() {
boolstr.Type = Bool
c.Fuzz(&boolstr.BoolVal)
boolstr.StrVal = ""
} else {
boolstr.Type = String
boolstr.BoolVal = false
c.Fuzz(&boolstr.StrVal)
}
}