using PluginInterface; using System.Reflection; using IoTGateway.DataAccess; using IoTGateway.Model; using DynamicExpresso; using MQTTnet.Server; using Newtonsoft.Json; using Microsoft.Extensions.Logging; namespace Plugin { public class DeviceThread : IDisposable { private readonly ILogger _logger; public readonly Device _device; public readonly IDriver _driver; private readonly MyMqttClient _myMqttClient; private Interpreter _interpreter ; public Dictionary DeviceValues { get; set; } = new(); internal List Methods { get; set; } private Task task { get; set; } = null; private DateTime TsStartDt = new DateTime(1970, 1, 1); private CancellationTokenSource tokenSource = new CancellationTokenSource(); private object _lock = new object(); private bool lastConnected = false; public DeviceThread(Device device, IDriver driver, string ProjectId, MyMqttClient myMqttClient, IMqttServer mqttServer, ILogger logger) { _myMqttClient = myMqttClient; _myMqttClient.OnExcRpc += MyMqttClient_OnExcRpc; _device = device; _driver = driver; _interpreter = new Interpreter(); _logger = logger; Methods = _driver.GetType().GetMethods().Where(x => x.GetCustomAttribute(typeof(MethodAttribute)) != null).ToList(); if (_device.AutoStart) { _logger.LogInformation($"线程已启动:{_device.DeviceName}"); using (var DC = new DataContext(IoTBackgroundService.connnectSetting, IoTBackgroundService.DBType)) { if (_device.DeviceVariables != null) { foreach (var item in _device.DeviceVariables) { DeviceValues[item.ID] = new() { StatusType = VaribaleStatusTypeEnum.Bad }; } } } task = Task.Run(() => { Thread.Sleep(5000);//上传客户端属性 myMqttClient.UploadAttributeAsync(device.DeviceName, device.DeviceConfigs.Where(x => x.DataSide == DataSide.ClientSide).ToDictionary(x => x.DeviceConfigName, x => x.Value)); while (true) { if (tokenSource.IsCancellationRequested) { _logger.LogInformation($"停止线程:{_device.DeviceName}"); return; } lock (_lock) { try { Dictionary> sendModel = new() { { _device.DeviceName, new() } }; var payLoad = new PayLoad() { Values = new() }; if (driver.IsConnected) { if (_device.DeviceVariables != null) { foreach (var item in _device.DeviceVariables) { var ret = new DriverReturnValueModel(); var ioarg = new DriverAddressIoArgModel { ID = item.ID, Address = item.DeviceAddress, ValueType = item.DataType }; var method = Methods.Where(x => x.Name == item.Method).FirstOrDefault(); if (method == null) ret.StatusType = VaribaleStatusTypeEnum.MethodError; else ret = (DriverReturnValueModel)method.Invoke(_driver, new object[1] { ioarg }); if (ret.StatusType == VaribaleStatusTypeEnum.Good && !string.IsNullOrWhiteSpace(item.Expressions?.Trim())) { try { ret.CookedValue = _interpreter.Eval(DealMysqlStr(item.Expressions).Replace("raw", ret.Value?.ToString())); } catch (Exception) { ret.StatusType = VaribaleStatusTypeEnum.ExpressionError; } } else ret.CookedValue = ret.Value; payLoad.Values[item.Name] = ret.CookedValue; ret.VarId = item.ID; //变化了才推送到mqttserver，用于前端展示 if (DeviceValues[item.ID].StatusType != ret.StatusType || DeviceValues[item.ID].Value?.ToString() != ret.Value?.ToString() || DeviceValues[item.ID].CookedValue?.ToString() != ret.CookedValue?.ToString()) { //这是设备变量列表要用的 mqttServer.PublishAsync($"internal/v1/gateway/telemetry/{_device.DeviceName}/{item.Name}", JsonConvert.SerializeObject(ret)); //这是在线组态要用的 mqttServer.PublishAsync($"v1/gateway/telemetry/{_device.DeviceName}/{item.Name}", JsonConvert.SerializeObject(ret.CookedValue)); } DeviceValues[item.ID] = ret; } payLoad.TS = (long)(DateTime.UtcNow - TsStartDt).TotalMilliseconds; if (DeviceValues.Any(x => x.Value.Value == null)) { payLoad.Values = null; payLoad.DeviceStatus = DeviceStatusTypeEnum.Bad; } else { payLoad.DeviceStatus = DeviceStatusTypeEnum.Good; sendModel[_device.DeviceName] = new List { payLoad }; myMqttClient.PublishTelemetry(_device, sendModel); } } } else { if (driver.Connect()) { lastConnected = true; _myMqttClient.DeviceConnected(_device.DeviceName); } else if (lastConnected) { lastConnected = false; _myMqttClient.DeviceDisconnected(_device.DeviceName); } } } catch (Exception ex) { _logger.LogError($"线程循环异常,{_device.DeviceName}", ex); } } Thread.Sleep((int)_driver.MinPeriod); } }); } else _myMqttClient.DeviceDisconnected(_device.DeviceName); } public void MyMqttClient_OnExcRpc(object? sender, RpcRequest e) { if (e.DeviceName == _device.DeviceName) { RpcLog rpcLog = new RpcLog() { DeviceId = _device.ID, StartTime = DateTime.Now, Method = e.Method, RpcSide = RpcSide.ServerSide, Params = JsonConvert.SerializeObject(e.Params) }; _logger.LogInformation($"{_device.DeviceName}收到RPC,{e}"); RpcResponse rpcResponse = new() { DeviceName = e.DeviceName, RequestId = e.RequestId, IsSuccess = false }; //执行写入变量RPC if (e.Method.ToLower() == "write") { lock (_lock) { bool RpcConnected = false; //没连接就连接 if (!_driver.IsConnected) if (_driver.Connect()) RpcConnected = true; //连接成功就尝试一个一个的写入，注意:目前写入地址和读取地址是相同的，对于PLC来说没问题，其他的要自己改........ if (_driver.IsConnected) { foreach (var para in e.Params) { //先查配置项，要用到配置的地址、数据类型、方法(方法最主要是用于区分写入数据的辅助判断，比如modbus不同的功能码) var deviceVariable = _device.DeviceVariables.Where(x => x.Name == para.Key).FirstOrDefault(); if (deviceVariable != null) { DriverAddressIoArgModel ioArgModel = new() { Address = deviceVariable.DeviceAddress, Value = para.Value, ValueType = deviceVariable.DataType }; var writeResponse = _driver.WriteAsync(e.RequestId, deviceVariable.Method, ioArgModel).Result; rpcResponse.IsSuccess = writeResponse.IsSuccess; if (!writeResponse.IsSuccess) { rpcResponse.Description = writeResponse.Description; break; } } else { rpcResponse.IsSuccess = false; rpcResponse.Description = $"未能找到变量:{para.Key}"; break; } } if (RpcConnected) _driver.Close(); } else//连接失败 { rpcResponse.IsSuccess = false; rpcResponse.Description = $"{e.DeviceName} 连接失败"; } } } //其他RPC TODO else { rpcResponse.IsSuccess = false; rpcResponse.Description = $"方法:{e.Method}暂未实现"; } //反馈RPC _myMqttClient.ResponseRpc(rpcResponse); //纪录入库 rpcLog.IsSuccess = rpcResponse.IsSuccess; rpcLog.Description = rpcResponse.Description; rpcLog.EndTime = DateTime.Now; using (var DC = new DataContext(IoTBackgroundService.connnectSetting, IoTBackgroundService.DBType)) { DC.Set().Add(rpcLog); DC.SaveChanges(); } } } public void StopThread() { _logger.LogInformation($"线程停止:{_device.DeviceName}"); _myMqttClient.DeviceDisconnected(_device.DeviceName); if (task != null) { _myMqttClient.OnExcRpc -= MyMqttClient_OnExcRpc; tokenSource.Cancel(); _driver.Close(); } } public void Dispose() { _driver.Dispose(); _interpreter = null; DeviceValues = null; Methods = null; _logger.LogInformation($"线程释放,{_device.DeviceName}"); } //mysql会把一些符号转义，没找到原因，先临时处理下 private string DealMysqlStr(string Expression) { return Expression.Replace("<", "<").Replace(">", ">").Replace("&", "&").Replace(""", "\""); } } }