@Override
public UpdateBlockForPipelineResponseProto updateBlockForPipeline(
RpcController controller, UpdateBlockForPipelineRequestProto req)
throws ServiceException {
try {
LocatedBlockProto result = PBHelper.convert(server
.updateBlockForPipeline(PBHelper.convert(req.getBlock()),
req.getClientName()));
return UpdateBlockForPipelineResponseProto.newBuilder().setBlock(result)
.build();
} catch (IOException e) {