Сервер для сбора данных с термодатчиковых модулей

2021-04-10 14:41:43 +03:00
parent 087db98d98
commit bba851ae16
13 changed files with 653 additions and 0 deletions
@@ -0,0 +1,113 @@
+using NLog;
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+using System.Text.Json;
+using System.Threading;
+
+namespace ESPServer
+{
+	class UnitDataReceiver
+	{
+		private readonly Logger logger = LogManager.GetCurrentClassLogger();
+
+		UnitsDatabase db;
+		RegistersContainer registers;
+		int port;
+
+		public UnitDataReceiver(int port, UnitsDatabase db, RegistersContainer registers)
+		{
+			this.db = db;
+			this.port = port;
+			this.registers = registers;
+		}
+
+		public void Start()
+		{
+			var t = new Thread(new ThreadStart(this.Run));
+			t.Start();
+		}
+
+		private void Run()
+		{
+			UdpClient listener = new UdpClient(port);
+			IPEndPoint groupEP = new IPEndPoint(IPAddress.Any, port);
+
+			try
+			{
+				logger.Info("Listening for UDP datagrams on port " + port);
+				while (true)
+				{
+					byte[] bytes = listener.Receive(ref groupEP);
+					string t = Encoding.ASCII.GetString(bytes, 0, bytes.Length);
+					logger.Debug("Received: " + t);
+					try
+					{
+						var received = JsonDocument.Parse(t);
+						var id = received.RootElement.GetProperty("id").GetString();
+						var unit = db.GetUnit(id);
+						if (unit == null)
+						{
+							logger.Info("Packet from unknown unit " + id);
+							unit = db.AddUnit(id);
+						}
+						ProcessUnit(unit, received.RootElement);
+					}
+					catch (Exception e)
+					{
+						logger.Error(e.Message);
+					}
+				}
+			}
+			catch (SocketException e)
+			{
+				Console.WriteLine(e);
+			}
+			finally
+			{
+				listener.Close();
+			}
+		}
+
+		private void ProcessUnit(Unit unit, JsonElement data)
+		{
+			var ip = data.GetProperty("ip").GetString();
+			lock (unit)
+			{
+				unit.ip = ip;
+				foreach (var v in data.EnumerateObject())
+				{
+					if (v.Name == "id" || v.Name == "ip") continue;
+					var uv = unit.GetValue(v.Name);
+					if (uv == null)
+					{
+						logger.Info("Unit " + unit.id + " unknown value " + v.Name);
+					}
+					else
+					{
+						if (v.Value.ValueKind == JsonValueKind.Null) uv.value = float.NaN;
+						if (v.Value.ValueKind == JsonValueKind.Number) uv.value = v.Value.GetSingle();
+						else
+						{
+							if (!float.TryParse(v.Value.GetString(), out uv.value))
+							{
+								uv.value = float.NaN;
+							}
+						}
+					}
+				}
+				FillRegisters(unit);
+			}
+		}
+
+		private void FillRegisters(Unit unit)
+		{
+			foreach (var uv in unit.values)
+			{
+				registers.SetFloat(unit.baseAddress + uv.Value.addressOffset, uv.Value.value);
+			}
+		}
+	}
+}