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fileloadingmode.go
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fileloadingmode.go
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// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package encoding
import (
"errors"
"github.com/dgraph-io/badger/v2/options"
)
var (
// ErrCouldNotMarshalFLM is to be used when marshalling failed.
ErrCouldNotMarshalFLM = errors.New("could not marshal FileLoadingMode value to string")
// ErrCouldNotUnmarshalFLM is to be used when unmarshalling failed.
ErrCouldNotUnmarshalFLM = errors.New("could not unmarshal FileLoadingMode value from string")
)
// FileLoadingMode is for storing a badger.FileLoadingMode as a string in a config file.
type FileLoadingMode struct {
options.FileLoadingMode
}
// Get returns the underlying FileLoadingMode.
func (m *FileLoadingMode) Get() options.FileLoadingMode {
return m.FileLoadingMode
}
// UnmarshalText maps a string to a FileLoadingMode enum value.
func (m *FileLoadingMode) UnmarshalText(text []byte) error {
switch string(text) {
case "FileIO":
m.FileLoadingMode = options.FileIO
case "LoadToRAM":
m.FileLoadingMode = options.LoadToRAM
case "MemoryMap":
m.FileLoadingMode = options.MemoryMap
default:
return ErrCouldNotUnmarshalFLM
}
return nil
}
// MarshalText maps a FileLoadingMode enum value to a string.
func (m FileLoadingMode) MarshalText() ([]byte, error) {
var t string
switch m.FileLoadingMode {
case options.FileIO:
t = "FileIO"
case options.LoadToRAM:
t = "LoadToRAM"
case options.MemoryMap:
t = "MemoryMap"
default:
return []byte{}, ErrCouldNotMarshalFLM
}
return []byte(t), nil
}