@Override
    public void handlerSelector(final SelectorData selectorData) {
        if (Objects.isNull(selectorData.getId())) {
            return;
        }
        if (!selectorData.getContinued()) {
            ApplicationConfigCache.getInstance().cacheRuleHandle(CacheKeyUtils.INST.getKey(selectorData.getId(), Constants.DEFAULT_RULE), "{}");
        }
        GrpcClientCache.initGrpcClient(selectorData.getId());
    }
The type Grpc plugin data handler.
shenyu-plugin/shenyu-plugin-proxy/shenyu-plugin-rpc/shenyu-plugin-grpc/src/main/java/org/apache/shenyu/plugin/grpc/handler/GrpcPluginDataHandler.java