edge/pkg/storage/driver/cache/lfu/fs/options.go

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package fs
import "io"
type GetPathFunc[K comparable] func(key K) ([]string, error)
type MarshalValueFunc[V any] func(value V) (io.Reader, error)
type UnmarshalValueFunc[V any] func(r io.Reader) (V, error)
type Options[K comparable, V any] struct {
GetPath GetPathFunc[K]
MarshalValue MarshalValueFunc[V]
UnmarshalValue UnmarshalValueFunc[V]
}
type OptionsFunc[K comparable, V any] func(opts *Options[K, V])
func DefaultOptions[K comparable, V any](funcs ...OptionsFunc[K, V]) *Options[K, V] {
opts := &Options[K, V]{
GetPath: DefaultGetPath[K],
MarshalValue: DefaultMarshalValue[V],
UnmarshalValue: DefaultUnmarshalValue[V],
}
for _, fn := range funcs {
fn(opts)
}
return opts
}
func WithGetPath[K comparable, V any](getKeyHash GetPathFunc[K]) OptionsFunc[K, V] {
return func(opts *Options[K, V]) {
opts.GetPath = getKeyHash
}
}
func WithMarshalValue[K comparable, V any](marshalValue MarshalValueFunc[V]) OptionsFunc[K, V] {
return func(opts *Options[K, V]) {
opts.MarshalValue = marshalValue
}
}
func WithUnmarshalValue[K comparable, V any](unmarshalValue UnmarshalValueFunc[V]) OptionsFunc[K, V] {
return func(opts *Options[K, V]) {
opts.UnmarshalValue = unmarshalValue
}
}