/// <summary>
/// 向客户端发送应答
/// </summary>
/// <param name="context"></param>
/// <param name="resp"></param>
private void DoResponse(IChannelHandlerContext context, PlatformResp resp)
{
// 构建消息体属性对象
JT808MessageBodyAttr attr = new JT808MessageBodyAttr();
attr.EncryptionType = 0;
byte[] body = resp.Encode();
attr.MsgBodyLength = body.Length;
attr.IsSplit = false;
JT808MessageHead head = new JT808MessageHead();
head.MessageId = resp.GetMessageId();
head.MessageSerial = GetFlowId(context.Channel);
head.TerminalId = resp.TerminalId;
head.MsgBodyAttr = attr;
// 构建JT/T808协议消息对象
JT808Message message = new JT808Message();
message.MsgHeader = head;
message.MsgBody = body;
byte[] reply = message.Encode();
context.WriteAndFlushAsync(Unpooled.CopiedBuffer(reply));
//ResponseData response = new ResponseData();
//response.CmdID = message.MsgHeader.MessageId;
//response.CmdSerialNo = message.MsgHeader.MessageSerial;
//response.MsgBody = reply;
//response.TerminalID = resp.TerminalId;
//response.Time = response.GetTimeStamp();
//context.WriteAndFlushAsync(response);
}
/// <summary>
/// 解码为对象
/// </summary>
/// <param name="_2Bytes"></param>
/// <returns></returns>
public static JT808MessageBodyAttr Decode(short _2Bytes)
{
JT808MessageBodyAttr attr = new JT808MessageBodyAttr();
// isSpilt ?
int isSplit = _2Bytes >> 13 & 0x1;
if (isSplit == 1)
{
attr.IsSplit = true;
}
// Encrypt type
int encryptTypeVal = _2Bytes >> 10 & 0x1;
if (encryptTypeVal == 1)
{
attr.EncryptionType = 1;
}
else
{
attr.EncryptionType = 0;
}
// Body length
int bodyLen = _2Bytes & 0x3ff;
attr.MsgBodyLength = bodyLen;
return(attr);
}
