package storage import ( "code.google.com/p/weed-fs/go/util" "encoding/hex" "strings" ) type FileId struct { VolumeId VolumeId Key uint64 Hashcode uint32 } func NewFileId(VolumeId VolumeId, Key uint64, Hashcode uint32) *FileId { return &FileId{VolumeId: VolumeId, Key: Key, Hashcode: Hashcode} } func ParseFileId(fid string) *FileId { a := strings.Split(fid, ",") if len(a) != 2 { println("Invalid fid", fid, ", split length", len(a)) return nil } vid_string, key_hash_string := a[0], a[1] volumeId, _ := NewVolumeId(vid_string) key, hash := ParseKeyHash(key_hash_string) return &FileId{VolumeId: volumeId, Key: key, Hashcode: hash} } func (n *FileId) String() string { bytes := make([]byte, 12) util.Uint64toBytes(bytes[0:8], n.Key) util.Uint32toBytes(bytes[8:12], n.Hashcode) nonzero_index := 0 for ; bytes[nonzero_index] == 0; nonzero_index++ { } return n.VolumeId.String() + "," + hex.EncodeToString(bytes[nonzero_index:]) }