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package memory
import (
"code.laria.me/petrific/config"
"code.laria.me/petrific/objects"
"code.laria.me/petrific/storage"
)
// Memory storage is an in-memory storage. It is rather useless when using petrific, it is mostly used for internal testing.
// But if you want to use the memory storage anyway, you can do that by putting a storage section with the method
// "memory" in your config file
type MemoryStorage struct {
objects map[string][]byte
bytype map[objects.ObjectType][]objects.ObjectId
}
func NewMemoryStorage() storage.Storage {
return MemoryStorage{
objects: make(map[string][]byte),
bytype: make(map[objects.ObjectType][]objects.ObjectId),
}
}
func MemoryStorageFromConfig(conf config.Config, name string) (storage.Storage, error) {
return NewMemoryStorage(), nil
}
func copyBytes(b []byte) []byte {
c := make([]byte, len(b))
copy(c, b)
return c
}
func (ms MemoryStorage) Get(id objects.ObjectId) ([]byte, error) {
b, ok := ms.objects[id.String()]
if !ok {
return nil, storage.ObjectNotFound
}
return copyBytes(b), nil
}
func (ms MemoryStorage) Has(id objects.ObjectId) (bool, error) {
_, ok := ms.objects[id.String()]
return ok, nil
}
func (ms MemoryStorage) Set(id objects.ObjectId, typ objects.ObjectType, raw []byte) error {
ms.objects[id.String()] = copyBytes(raw)
ms.bytype[typ] = append(ms.bytype[typ], id)
return nil
}
func (ms MemoryStorage) List(typ objects.ObjectType) ([]objects.ObjectId, error) {
return ms.bytype[typ], nil
}
func (MemoryStorage) Close() error {
return nil
}
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