private List<byte[]> getCompletePacket(byte[] bytes, ByteBuf byteBuf) {        byte[] clone = bytes.clone();        int i = 0;        List<byte[]> ret = Lists.newArrayList();        while (i + YTLConstant.HEADER_LENGTH < clone.length) {            byte[] header = Arrays.copyOfRange(clone, i, YTLConstant.HEADER_LENGTH);            if (Arrays.equals(header, YTLConstant.ELECTRICITY_METER_RECEIVE_HEADER)                    || Arrays.equals(header, YTLConstant.RELAY_SETTING_RECEIVE_NORMAL_HEADER)                    || Arrays.equals(header, YTLConstant.RELAY_SETTING_RECEIVE_WRONG_HEADER)                    || Arrays.equals(header, YTLConstant.RELAY_STATUS_RECEIVE_HEADER)) {                //读取电表 接收数据 头                if (YTLConstant.HEADER_LENGTH + 1 < clone.length) {//加1为了判断长度位                    byte infoLength = clone[YTLConstant.HEADER_LENGTH];                    int tailIndex = YTLConstant.HEADER_LENGTH + infoLength + 2;//CRC长度为2                    if (tailIndex <= clone.length - 1 && bytes[tailIndex] == YTLConstant.TAIL) {                        i = tailIndex + 1;                        if (i == clone.length) {                            ret.add(bytes);                            byteBuf.skipBytes(i);                        } else {                            ret.add(Arrays.copyOf(clone, i));//从clone中截取长度为i的数组                            clone = Arrays.copyOfRange(clone, i, clone.length - 1);                            byteBuf.skipBytes(i);                            i = 0;                        }                    }else{                        //无效指令跳过                        byteBuf.skipBytes(clone.length);                        break;                    }                }            }else{                //无效指令跳过                if (logger.isDebugEnabled()) {                    logger.debug("Received an unregistered cmd,the header is : "+Arrays.toString(header));                }                byteBuf.skipBytes(clone.length);                break;            }        }        return ret;    }