gecko/vms/platformvm/status.go

82 lines
1.5 KiB
Go

// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package platformvm
import (
"errors"
)
var (
errUnknownStatus = errors.New("unknown status")
)
// Status ...
type Status uint32
// List of possible status values
// [Unknown] Zero value, means the status is not known
// [Preferred] means the operation is known and preferred, but hasn't been decided yet
// [Created] means the operation occurred, but isn't managed locally
// [Validating] means the operation was accepted and is managed locally
const (
Unknown Status = iota
Preferred
Created
Validating
)
// MarshalJSON ...
func (s Status) MarshalJSON() ([]byte, error) {
if err := s.Valid(); err != nil {
return nil, err
}
return []byte("\"" + s.String() + "\""), nil
}
// UnmarshalJSON ...
func (s *Status) UnmarshalJSON(b []byte) error {
str := string(b)
if str == "null" {
return nil
}
switch str {
case "\"Unknown\"":
*s = Unknown
case "\"Preferred\"":
*s = Preferred
case "\"Created\"":
*s = Created
case "\"Validating\"":
*s = Validating
default:
return errUnknownStatus
}
return nil
}
// Valid returns nil if the status is a valid status.
func (s Status) Valid() error {
switch s {
case Unknown, Preferred, Created, Validating:
return nil
default:
return errUnknownStatus
}
}
func (s Status) String() string {
switch s {
case Unknown:
return "Unknown"
case Preferred:
return "Preferred"
case Created:
return "Created"
case Validating:
return "Validating"
default:
return "Invalid status"
}
}