@Override
    public List<SubChannelCopy> getSubchannels() {
        return list.stream().filter(r -> r.getState().getState() == ConnectivityState.READY
                && Boolean.parseBoolean(r.getStatus())).collect(Collectors.toList());
    }
Choose subChannel.

@param list subChannel list
@return result subChannel
shenyu-plugin/shenyu-plugin-proxy/shenyu-plugin-rpc/shenyu-plugin-grpc/src/main/java/org/apache/shenyu/plugin/grpc/loadbalance/picker/AbstractReadyPicker.java