public string list(OnDemandRequest req, ESPEntity esp)
{
esp.Name = "Node_1";
using (UdpClient c = new UdpClient(port))
{
IPEndPoint ep = new IPEndPoint(IPAddress.Parse(ip), port);
byte checksum = 22; //TODO, dont know how
string dataString = "$LIST," + esp.Name + "," + "*" + checksum;
byte[] data = System.Text.Encoding.ASCII.GetBytes(dataString);
c.Send(data, data.Length, ip, port);
}
UdpClient udpServer = new UdpClient(port);
bool waitForAnswer = true;
string response = "";
//NOT REALLY NEED THIS WHILE
while (waitForAnswer)
{
var remoteEP = new IPEndPoint(IPAddress.Any, port);
var data = udpServer.Receive(ref remoteEP);
response = data.ToString();
byte[] ack = System.Text.Encoding.ASCII.GetBytes("OK");
udpServer.Send(ack, ack.Length, remoteEP);
if (ack.Length != 0)
{
waitForAnswer = false;
}
}
return(response);
}
public async Task <ActionResult <OnDemandRequest> > userRequest([FromForm] OnDemandRequest onDemandRequest)
{
var entity = _context.ESPs.Where(e => e.Name == onDemandRequest.nodeId).FirstOrDefault();
string result = udpService.SendUdp(onDemandRequest, entity);
Console.Write("receive data: " + result);
//return StatusCode(200);
return(CreatedAtAction(nameof(GetESPDataItem), StatusCode(200)));
}
public void write(OnDemandRequest req, ESPEntity esp)
{
esp.Name = "Node_1";
using (UdpClient c = new UdpClient(port)) {
byte checksum = 22; //TODO, dont know how
string dataString = "$WRTE," + esp.Name + "," + req.pin + req.pin_mode + req.status + "*" + checksum;
byte[] data = System.Text.Encoding.ASCII.GetBytes(dataString);
c.Send(data, data.Length, ip, port);
}
}
public AsyncServerStreamingCall <Common.RowDefinition> Materialize(string viewId, IList <string> schemaIds)
{
var request = new OnDemandRequest()
{
ViewId = viewId
};
var schema = new Schema();
foreach (var item in schemaIds)
{
request.Schemas.Add(item, schema);
}
return(_client.Materialize(request));
}
public string read(OnDemandRequest req, ESPEntity esp)
{
esp = new ESPEntity();
esp.Name = "A2:20:A6:0D:65:D2";
using (UdpClient c = new UdpClient(port))
{
//Console.WriteLine("IP ADDRESS: " + esp.IPAddress);
IPEndPoint ep = new IPEndPoint(IPAddress.Parse(ip), port);
byte checksum = 22; //TODO, dont know how
string dataString = "$READ," + esp.Name + "," + "*" + checksum;
byte[] data = System.Text.Encoding.Default.GetBytes(dataString);
c.Send(data, data.Length, ip, port);
}
UdpClient udpServer = new UdpClient(port);
bool waitForAnswer = true;
string response = "";
//NOT REALLY NEED THIS WHILE
while (waitForAnswer)
{
var remoteEP = new IPEndPoint(IPAddress.Any, port);
var data1 = udpServer.Receive(ref remoteEP);
response = System.Text.Encoding.Default.GetString(data1);
for (int i = 24; i < 29; i++)
{
int y = System.Text.Encoding.Default.GetBytes(response.Substring(i, 1))[0];
int offset = y + '0';
response[i] = System.Text.Encoding.Default.GetString(offset);
}
byte[] ack = System.Text.Encoding.Default.GetBytes("OK");
udpServer.Send(ack, ack.Length, remoteEP);
if (ack.Length != 0)
{
waitForAnswer = false;
}
}
return(response);
}
public string SendUdp(OnDemandRequest req, ESPEntity esp)
{
String resp = "";
switch (req.commandType)
{
case CommandType.READ:
resp = read(req, esp);
break;
case CommandType.WRITE:
write(req, esp);
break;
case CommandType.LIST:
resp = list(req, esp);
break;
default:
return(resp);
}
return(resp);
}
