package needle import ( "encoding/hex" . "github.com/chrislusf/seaweedfs/weed/storage/types" ) type FileId struct { VolumeId VolumeId Key NeedleId Cookie Cookie } func NewFileIdFromNeedle(VolumeId VolumeId, n *Needle) *FileId { return &FileId{VolumeId: VolumeId, Key: n.Id, Cookie: n.Cookie} } func NewFileId(VolumeId VolumeId, key uint64, cookie uint32) *FileId { return &FileId{VolumeId: VolumeId, Key: Uint64ToNeedleId(key), Cookie: Uint32ToCookie(cookie)} } func (n *FileId) String() string { return n.VolumeId.String() + "," + formatNeedleIdCookie(n.Key, n.Cookie) } func formatNeedleIdCookie(key NeedleId, cookie Cookie) string { bytes := make([]byte, NeedleIdSize+CookieSize) NeedleIdToBytes(bytes[0:NeedleIdSize], key) CookieToBytes(bytes[NeedleIdSize:NeedleIdSize+CookieSize], cookie) nonzero_index := 0 for ; bytes[nonzero_index] == 0; nonzero_index++ { } return hex.EncodeToString(bytes[nonzero_index:]) }