package weed_server import ( "context" "fmt" "github.com/seaweedfs/seaweedfs/weed/pb/volume_server_pb" "github.com/seaweedfs/seaweedfs/weed/storage/needle" "github.com/seaweedfs/seaweedfs/weed/storage/types" ) func (vs *VolumeServer) ReadNeedleBlob(ctx context.Context, req *volume_server_pb.ReadNeedleBlobRequest) (resp *volume_server_pb.ReadNeedleBlobResponse, err error) { resp = &volume_server_pb.ReadNeedleBlobResponse{} v := vs.store.GetVolume(needle.VolumeId(req.VolumeId)) if v == nil { return nil, fmt.Errorf("not found volume id %d", req.VolumeId) } resp.NeedleBlob, err = v.ReadNeedleBlob(req.Offset, types.Size(req.Size)) if err != nil { return nil, fmt.Errorf("read needle blob offset %d size %d: %v", req.Offset, req.Size, err) } return resp, nil } func (vs *VolumeServer) ReadNeedleMeta(ctx context.Context, req *volume_server_pb.ReadNeedleMetaRequest) (resp *volume_server_pb.ReadNeedleMetaResponse, err error) { resp = &volume_server_pb.ReadNeedleMetaResponse{} volumeId := needle.VolumeId(req.VolumeId) n := &needle.Needle{ Id: types.NeedleId(req.NeedleId), Flags: 0x08, } size := req.Size offset := req.Offset hasVolume := vs.store.HasVolume(volumeId) if !hasVolume { return nil, fmt.Errorf("not found volume id %d and read needle metadata at ec shards is not supported", req.VolumeId) } err = vs.store.ReadVolumeNeedleMetaAt(volumeId, n, offset, size) if err != nil { return nil, err } resp.Cookie = uint32(n.Cookie) resp.LastModified = n.LastModified resp.Crc = n.Checksum.Value() if n.HasTtl() { resp.Ttl = n.Ttl.String() } return resp, nil } func (vs *VolumeServer) WriteNeedleBlob(ctx context.Context, req *volume_server_pb.WriteNeedleBlobRequest) (resp *volume_server_pb.WriteNeedleBlobResponse, err error) { resp = &volume_server_pb.WriteNeedleBlobResponse{} v := vs.store.GetVolume(needle.VolumeId(req.VolumeId)) if v == nil { return nil, fmt.Errorf("not found volume id %d", req.VolumeId) } if err = v.WriteNeedleBlob(types.NeedleId(req.NeedleId), req.NeedleBlob, types.Size(req.Size)); err != nil { return nil, fmt.Errorf("write blob needle %d size %d: %v", req.NeedleId, req.Size, err) } return resp, nil }