Added OpenHAB config files generation and command line command to use that. Also added transforms for OpenHAB integration.

MDStatMonitoringUnit.cs

@@ -21,8 +21,68 @@ namespace Barsik
 	/// </summary>
 	class MDStatMonitoringUnit : BaseMonitoringUnit
 	{
+		List<int> knownRaids;
+
 		public MDStatMonitoringUnit(JsonElement config, RegistersContainer registers) : base(config, registers)
 		{
+			knownRaids = new List<int>();
+			int currentAddress = baseAddress;
+			// the file is not so big, so read it completely
+			var lines = File.ReadAllLines("/proc/mdstat");
+			for (int i = 0; i < lines.Length;)
+			{
+				if (lines[i].StartsWith("md") && i < lines.Length - 1)
+				{
+					// we found device description
+					// second line of it is as follows:
+					// 2930264896 blocks super 1.0 [2/2] [UU]
+					// we need last characters in brackets []
+					int last_pos = lines[i + 1].LastIndexOf(']');
+					int pos;
+					for (pos = last_pos; pos > 0 && lines[i + 1][pos] != '['; pos--) ;
+					if (lines[i + 1][pos] != '[') knownRaids.Add(0);
+					else knownRaids.Add(last_pos - pos - 1);
+					i += 2;
+				}
+				else i++;
+			}
+		}
+
+		public override void GenerateItemsConfig(string name, StringBuilder config)
+		{
+			for (int i = 0; i < knownRaids.Count; i++)
+			{
+				for (int j = 0; j < knownRaids[i]; j++)
+				{
+					config.Append(string.Format("Switch {0}_RAID{1}Disk{2} \"{0} RAID{1} Disk{2} status\" <switch>", name, i, j));
+					config.Append(" {channel=\"");
+					config.AppendFormat("modbus:data:{0}:{1}:", name, unitName);
+					config.AppendFormat("RAID{0}Disk{1}:switch", name, i, j);
+					config.Append("\"}\n");
+				}
+			}
+		}
+
+		public override void GenerateThingsConfig(StringBuilder config)
+		{
+			int diskAmount = 0;
+			foreach (var size in knownRaids) diskAmount += size;
+			config.Append("\tBridge poller ");
+			config.Append(unitName);
+			config.AppendFormat("[start = {0}, length = {1}, type = \"holding\", refresh = 500] {{\n", baseAddress, diskAmount);
+			int currentAddress = baseAddress;
+			for (int i = 0; i < knownRaids.Count; i++)
+			{
+				for (int j = 0; j < knownRaids[i]; j++)
+				{
+					string name = string.Format("RAID{0}Disk{1}", i, j);
+					config.Append("\t\tThing data ");
+					config.Append(name);
+					config.AppendFormat("[readStart = \"{0}\", readValueType = \"int16\"]\n", currentAddress);
+					currentAddress++;
+				}
+			}
+			config.Append("\t}\n");
 		}
 
 		public override void Run()

MonitoringUnit.cs

@@ -1,25 +1,28 @@
 using System;
+using System.Text;
 using System.Text.Json;
 
 namespace Barsik
 {
-    class BaseMonitoringUnit
+    abstract class BaseMonitoringUnit
     {
         protected JsonElement config;
         protected RegistersContainer registers;
 
         protected int baseAddress;
+        protected string unitName;
 
         public BaseMonitoringUnit(JsonElement config, RegistersContainer registers)
         {
             this.config = config.Clone();
             this.registers = registers;
             baseAddress = config.GetProperty("BaseAddress").GetInt32();
+            unitName = config.GetProperty("Name").GetString();
         }
 
-        public virtual void Run()
+        public abstract void Run();
-        {
+        public abstract void GenerateThingsConfig(StringBuilder config);
-        }
+        public abstract void GenerateItemsConfig(string name, StringBuilder config);
 
         public static BaseMonitoringUnit Create(JsonElement config, RegistersContainer registers)
         {

Program.cs

@@ -1,10 +1,12 @@
 using NLog;
+using System;
 using System.Collections.Generic;
 using System.CommandLine;
 using System.CommandLine.Invocation;
 using System.Globalization;
 using System.IO;
 using System.Reflection;
+using System.Text;
 using System.Text.Json;
 using System.Threading;
 
@@ -14,6 +16,7 @@ namespace Barsik
     {
         private static RegistersContainer registers;
         private static List<BaseMonitoringUnit> units;
+        private static JsonDocument configJson;
 
 		private static readonly Logger logger = LogManager.GetCurrentClassLogger();
 
@@ -27,42 +30,87 @@ namespace Barsik
             };
             runCommand.Handler = CommandHandler.Create<string>(RunService);
             rootCommand.AddCommand(runCommand);
+            var openhabConfigCommand = new Command("openhab-config")
+            {
+                new Option<string>("--config", () => "", "Path to configuration file")
+            };
+            openhabConfigCommand.Handler = CommandHandler.Create<string>(GenerateOpenhabConfig);
+            rootCommand.AddCommand(openhabConfigCommand);
+            // Init common things 
+            registers = new RegistersContainer();
+            //
             rootCommand.InvokeAsync(args).Wait();
         }
 
-        static void RunService(string config)
-		{
-            Logging.Setup();
-            logger.Info("Barsik monitoring service starting");
-
-            registers = new RegistersContainer();
-            var server = new ModbusServer(registers);
-            units = new List<BaseMonitoringUnit>();
 
+        private static JsonDocument LoadConfig(string config)
+        {
             if (string.IsNullOrEmpty(config))
             {
                 string assemblyFolder = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
                 config = Path.Combine(assemblyFolder, "barsik.json");
             }
             string configStr = File.ReadAllText(config);
-            int port = 0;
+            return JsonDocument.Parse(configStr);
-            using (JsonDocument doc = JsonDocument.Parse(configStr))
+        }
+
+        private static List<BaseMonitoringUnit> LoadUnits(JsonDocument config)
+        {
+            var units = new List<BaseMonitoringUnit>();
+            var root = config.RootElement;
+            foreach (var unitElement in root.GetProperty("Units").EnumerateArray())
             {
-                var root = doc.RootElement;
+                var unit = BaseMonitoringUnit.Create(unitElement, registers);
-                port = root.GetProperty("Port").GetInt32();
+                if (unit != null)
-                foreach (var unitElement in root.GetProperty("Units").EnumerateArray())
                 {
-                    var unit = BaseMonitoringUnit.Create(unitElement, registers);
+                    units.Add(unit);
-                    if (unit != null)
-                    {
-                        units.Add(unit);
-                        Thread unitThread = new Thread(new ThreadStart(unit.Run));
-                        unitThread.Start();
-                    }
                 }
             }
+            return units;
+        }
+
+        static void GenerateOpenhabConfig(string config)
+		{
+            configJson = LoadConfig(config);
+            units = LoadUnits(configJson);
+            var root = configJson.RootElement;
+            string name = root.GetProperty("Name").GetString();
+
+            StringBuilder thingsConfig = new StringBuilder();
+            StringBuilder itemsConfig = new StringBuilder();
+            thingsConfig.AppendFormat("Bridge modbus:tcp:{0} [ host=\"{1}\", port={2}, id=1 ] {{\n",
+                name,
+                root.GetProperty("IP").GetString(),
+                root.GetProperty("Port").GetInt32());
+            // generate units configs
+            foreach (var unit in units)
+			{
+                unit.GenerateThingsConfig(thingsConfig);
+                unit.GenerateItemsConfig(name, itemsConfig);
+			}
+            //
+            thingsConfig.Append("}\n");
+
+            File.WriteAllText(name + ".things", thingsConfig.ToString());
+            File.WriteAllText(name + ".items", itemsConfig.ToString());
+        }
+
+		static void RunService(string config)
+		{
+            Logging.Setup();
+            logger.Info("Barsik monitoring service starting");
+
+            configJson = LoadConfig(config);
+            units = LoadUnits(configJson);
+            foreach (var unit in units)
+            {
+                Thread unitThread = new Thread(new ThreadStart(unit.Run));
+                unitThread.Start();
+            }
+
             logger.Info("Configuration loaded, we have " + units.Count + " units");
-            server.Port = port;
+            var server = new ModbusServer(registers);
+            server.Port = configJson.RootElement.GetProperty("Port").GetInt32();
             server.Run();
             logger.Info("Exiting");
         }

Properties/PublishProfiles/FolderProfile.pubxml

@@ -7,8 +7,8 @@ https://go.microsoft.com/fwlink/?LinkID=208121.
     <PublishProtocol>FileSystem</PublishProtocol>
     <Configuration>Release</Configuration>
     <Platform>Any CPU</Platform>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
-    <PublishDir>bin\Debug\netcoreapp2.1\publish\</PublishDir>
+    <PublishDir>bin\Publish</PublishDir>
     <RuntimeIdentifier>linux-x64</RuntimeIdentifier>
     <SelfContained>false</SelfContained>
     <_IsPortable>true</_IsPortable>

SensorsMonitoringUnit.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Text;
 using System.Text.Json;
 using System.Threading;
 
@@ -11,15 +12,16 @@ namespace Barsik
 	class SensorsMonitoringUnit : BaseMonitoringUnit
 	{
 		const string CORE_STR = "Core{0} Temp:";
+		const float MULTIPLIER = 100;
+		int cores;
 
 		public SensorsMonitoringUnit(JsonElement config, RegistersContainer registers) : base(config, registers)
 		{
+			cores = config.GetProperty("Cores").GetInt32();
 		}
 
 		public override void Run()
 		{
-			int cores = config.GetProperty("Cores").GetInt32();
-			var multiplier = config.GetProperty("Multiplier").GetDouble();
 			while (true)
 			{
 				System.Diagnostics.ProcessStartInfo procStartInfo = new System.Diagnostics.ProcessStartInfo("sensors");
@@ -60,7 +62,7 @@ namespace Barsik
 					// fill register data starting from baseAddress
 					for (int i = 0; i < cores; i++)
 					{
-						registers[baseAddress + i] = (int)(t[i] * multiplier);
+						registers[baseAddress + i] = (int)(t[i] * MULTIPLIER);
 					}
 				}
 				Thread.Sleep(2000);
@@ -84,5 +86,33 @@ namespace Barsik
 			float.TryParse(v.Substring(pos, pos2 - pos), out res);
 			return res;
 		}
+
+		public override void GenerateThingsConfig(StringBuilder config)
+		{
+			config.Append("\tBridge poller ");
+			config.Append(unitName);
+			config.AppendFormat("[start = {0}, length = {1}, type = \"holding\", refresh = 500] {{\n", baseAddress, cores);
+			int currentAddress = baseAddress;
+			for (int i = 0; i < cores; i++)
+			{
+				string name = string.Format("Core{0}Temp", i);
+				config.Append("\t\tThing data ");
+				config.Append(name);
+				config.AppendFormat("[readStart = \"{0}\", readValueType = \"int16\", readTransform=\"JS(divide100.js)\"]\n", currentAddress);
+				currentAddress++;
+			}
+			config.Append("\t}\n");
+		}
+
+		public override void GenerateItemsConfig(string name, StringBuilder config)
+		{
+			for (int i = 0; i < cores; i++)
+			{
+				config.Append(string.Format("Number {0}_Core{1}Temp \"{0} CPU Core{1} [%.1f °C]\" <temperature>", name, i));
+				config.Append(" {channel=\"");
+				config.AppendFormat("modbus:data:{0}:{1}:Core{2}Temp:number", name, unitName, i);
+				config.Append("\"}\n");
+			}
+		}
 	}
 }

barsik.json.sample

@@ -1,11 +1,12 @@
 {
+	"Name": "My_Server",
+	"IP": "192.168.0.5",
 	"Port": 4500,
 	"Units": [
 		{
 			"Name": "CPU",
 			"Type": "Sensors",
 			"BaseAddress": 1,
-			"Multiplier": 100,
 			"Cores": 2
 		},
 		{

barsik.service

@@ -3,7 +3,7 @@ Description=Barsik monitoring service
 After=network.target
 
 [Service]
-ExecStart=dotnet /root/barsik/Barsik.dll
+ExecStart=/usr/bin/dotnet /root/barsik/Barsik.dll run
 User=root
 Group=root
 RuntimeDirectory=/root/barsik

openhab/transform/divide100.js

@@ -0,0 +1,3 @@
+(function(i) {
+    return i / 100;
+})(input)

openhab/transform/multiply100.js

@@ -0,0 +1,3 @@
+(function(i) {
+    return i * 100;
+})(input)

openhab/transform/readme.md

@@ -0,0 +1,3 @@
+Transformations should be put into `/opt/openhab2/conf/transform` to work.
+
+Some of monitoring units use them in configuration.