@Override
    public EchoResponse echoObj(EchoRequest req) {
        if (sleep > 0) {
            try {
                Thread.sleep(sleep);
            } catch (Exception ignore) { // NOPMD
            }
        }
        counter.incrementAndGet();
        EchoResponse response = EchoResponse.newBuilder()
            .setCode(200)
            .setMessage(result != null ? result : "protobuf works! " + req.getName())
            .build();
        return response;
    }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
example/src/test/java/com/alipay/sofa/rpc/protobuf/ProtoServiceImpl.java