图数据库系统重构之路：从OrientDB迁移到NebulaGraph 真实案例分享

@Override
    public MSubGraphReceive getSubGraph(MSubGraphSend subGraphSend) {
        logger.info("-----start getSubGraph------(" + subGraphSend.toString() + ")");
        MSubGraphReceive r = (MSubGraphReceive) akkaClient.sendMessage(subGraphSend, 30);
        logger.info("-----end getSubGraph:");
        return r;
    }

public interface IGrayService {
    /**
     * 是否命中灰度 配置值 0 ~ 1000  true: 命中  false:未命中
     *
     * @param hashCode
     * @return
     */
    public boolean hit(Integer hashCode);
    /**
     * 是否取样 配置值 0 ~ 100
     *
     * @return
     */
    public boolean hitSample();
    /**
     * 发送请求-响应数据
     * @param requestDTO
     */
    public void sendReqMsg(MessageRequestDTO requestDTO);
    /**
     * 根据
     * @param methodKeyEnum
     * @return
     */
    public boolean hitSample(MethodKeyEnum methodKeyEnum);
}

@Override
    public MSubGraphReceive getSubGraph(MSubGraphSend subGraphSend) {
        logger.info("-----start getSubGraph------(" + subGraphSend.toString() + ")");
        long start = System.currentTimeMillis();
        //1. 请求灰度
        boolean hit = grayService.hit(HashUtils.getHashCode(subGraphSend));
        MSubGraphReceive r;
        if (hit) {
            //2、命中灰度 走新流程
            r = newCoreService.getSubGraph(subGraphSend); // 使用Dubbo调用新服务
        } else {
            //这里是原来的流程 使用的akka通信
            r = (MSubGraphReceive) akkaClient.sendMessage(subGraphSend, 30);
        }
        long requestTime = System.currentTimeMillis() - start;
        //3.采样命中了发送数据对比MQ 
        if (grayService.hitSample(MethodKeyEnum.getSubGraph_subGraphSend)) {
            MessageRequestDTO requestDTO = new MessageRequestDTO.Builder()
                    .req(JSON.toJSONString(subGraphSend))
                    .res(JSON.toJSONString(r))
                    .requestTime(requestTime)
                    .methodKey(MethodKeyEnum.getSubGraph_subGraphSend)
                    .isGray(hit).build();
            grayService.sendReqMsg(requestDTO);
        }
        logger.info("-----end getSubGraph: {} ms", requestTime);
        return r;
    }