315 lines
15 KiB
C#
315 lines
15 KiB
C#
using PluginInterface;
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using System.Reflection;
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using System.Text;
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using IoTGateway.DataAccess;
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using IoTGateway.Model;
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using DynamicExpresso;
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using MQTTnet.Server;
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using Newtonsoft.Json;
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using Microsoft.Extensions.Logging;
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using MQTTnet;
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namespace Plugin
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{
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public class DeviceThread : IDisposable
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{
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private readonly ILogger _logger;
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public readonly Device Device;
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public readonly IDriver Driver;
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private readonly string _projectId;
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private readonly MyMqttClient? _myMqttClient;
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private Interpreter? _interpreter;
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public Dictionary<Guid, DriverReturnValueModel> DeviceValues { get; set; } = new();
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internal List<MethodInfo>? Methods { get; set; }
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private Task? _task;
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private readonly DateTime _tsStartDt = new(1970, 1, 1);
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private readonly CancellationTokenSource _tokenSource = new CancellationTokenSource();
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private readonly object _lock = new();
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public DeviceThread(Device device, IDriver driver, string projectId, MyMqttClient myMqttClient,
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MqttServer mqttServer, ILogger logger)
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{
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_myMqttClient = myMqttClient;
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_myMqttClient.OnExcRpc += MyMqttClient_OnExcRpc;
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Device = device;
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Driver = driver;
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_projectId = projectId;
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_interpreter = new Interpreter();
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_logger = logger;
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Methods = Driver.GetType().GetMethods().Where(x => x.GetCustomAttribute(typeof(MethodAttribute)) != null)
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.ToList();
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if (Device.AutoStart)
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{
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_logger.LogInformation($"线程已启动:{Device.DeviceName}");
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if (Device.DeviceVariables != null)
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{
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foreach (var item in Device.DeviceVariables)
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{
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DeviceValues[item.ID] = new() { StatusType = VaribaleStatusTypeEnum.Bad };
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}
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}
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_task = Task.Run(() =>
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{
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//上传客户端属性
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myMqttClient.UploadAttributeAsync(device.DeviceName,
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device.DeviceConfigs.Where(x => x.DataSide == DataSide.ClientSide)
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.ToDictionary(x => x.DeviceConfigName, x => x.Value));
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while (true)
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{
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if (_tokenSource.IsCancellationRequested)
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{
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_logger.LogInformation($"停止线程:{Device.DeviceName}");
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return;
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}
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lock (_lock)
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{
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try
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{
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Dictionary<string, List<PayLoad>> sendModel = new() { { Device.DeviceName, new() } };
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var payLoad = new PayLoad() { Values = new() };
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if (driver.IsConnected)
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{
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if (Device.DeviceVariables != null)
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{
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foreach (var item in Device.DeviceVariables.OrderBy(x=>x.Index))
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{
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Thread.Sleep((int)Device.CmdPeriod);
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var ret = new DriverReturnValueModel();
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var ioarg = new DriverAddressIoArgModel
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{
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ID = item.ID,
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Address = item.DeviceAddress,
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ValueType = item.DataType
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};
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var method = Methods.Where(x => x.Name == item.Method).FirstOrDefault();
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if (method == null)
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ret.StatusType = VaribaleStatusTypeEnum.MethodError;
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else
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ret = (DriverReturnValueModel)method.Invoke(Driver,
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new object[] { ioarg })!;
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if (ret.StatusType == VaribaleStatusTypeEnum.Good &&
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!string.IsNullOrWhiteSpace(item.Expressions?.Trim()))
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{
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try
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{
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ret.CookedValue = _interpreter.Eval(DealMysqlStr(item.Expressions)
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.Replace("raw", ret.Value?.ToString()));
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}
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catch (Exception)
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{
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ret.StatusType = VaribaleStatusTypeEnum.ExpressionError;
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}
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}
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else
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ret.CookedValue = ret.Value;
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payLoad.Values[item.Name] = ret.CookedValue;
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ret.VarId = item.ID;
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//变化了才推送到mqttserver，用于前端展示
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if (DeviceValues[item.ID].StatusType != ret.StatusType ||
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DeviceValues[item.ID].Value?.ToString() != ret.Value?.ToString() ||
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DeviceValues[item.ID].CookedValue?.ToString() !=
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ret.CookedValue?.ToString())
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{
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//这是设备变量列表要用的
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var msgInternal = new InjectedMqttApplicationMessage(
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new MqttApplicationMessage()
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{
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Topic =
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$"internal/v1/gateway/telemetry/{Device.DeviceName}/{item.Name}",
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Payload = Encoding.UTF8.GetBytes(
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JsonConvert.SerializeObject(ret))
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});
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mqttServer.InjectApplicationMessage(msgInternal);
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//这是在线组态要用的
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var msgConfigure = new InjectedMqttApplicationMessage(
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new MqttApplicationMessage()
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{
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Topic =
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$"v1/gateway/telemetry/{Device.DeviceName}/{item.Name}",
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Payload = Encoding.UTF8.GetBytes(
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JsonConvert.SerializeObject(ret.CookedValue))
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});
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mqttServer.InjectApplicationMessage(msgConfigure);
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}
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DeviceValues[item.ID] = ret;
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}
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payLoad.TS = (long)(DateTime.UtcNow - _tsStartDt).TotalMilliseconds;
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if (DeviceValues.Any(x => x.Value.Value == null))
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{
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payLoad.Values = null;
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payLoad.DeviceStatus = DeviceStatusTypeEnum.Bad;
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}
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else if (DeviceValues.Any(x => x.Value.StatusType == VaribaleStatusTypeEnum.Bad))
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{
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if (driver.IsConnected)
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{
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driver.Close();
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driver.Dispose();
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}
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_myMqttClient?.DeviceDisconnected(Device);
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}
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else
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{
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payLoad.DeviceStatus = DeviceStatusTypeEnum.Good;
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sendModel[Device.DeviceName] = new List<PayLoad> { payLoad };
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myMqttClient.PublishTelemetryAsync(Device, sendModel);
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}
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}
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}
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else
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{
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_myMqttClient?.DeviceDisconnected(Device);
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if (driver.Connect())
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_myMqttClient?.DeviceConnected(Device);
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}
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}
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catch (Exception ex)
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{
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_logger.LogError($"线程循环异常,{Device.DeviceName}", ex);
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}
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}
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Thread.Sleep((int)Driver.MinPeriod);
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}
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});
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}
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else
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_myMqttClient?.DeviceDisconnected(Device);
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}
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public void MyMqttClient_OnExcRpc(object? sender, RpcRequest e)
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{
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if (e.DeviceName == Device.DeviceName)
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{
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RpcLog rpcLog = new RpcLog()
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{
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DeviceId = Device.ID,
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StartTime = DateTime.Now,
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Method = e.Method,
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RpcSide = RpcSide.ServerSide,
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Params = JsonConvert.SerializeObject(e.Params)
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};
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_logger.LogInformation($"{Device.DeviceName}收到RPC,{e}");
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RpcResponse rpcResponse = new()
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{ DeviceName = e.DeviceName, RequestId = e.RequestId, IsSuccess = false };
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//执行写入变量RPC
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if (e.Method.ToLower() == "write")
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{
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lock (_lock)
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{
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bool rpcConnected = false;
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//没连接就连接
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if (!Driver.IsConnected)
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if (Driver.Connect())
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rpcConnected = true;
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//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........
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if (Driver.IsConnected)
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{
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foreach (var para in e.Params)
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{
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//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)
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var deviceVariable = Device.DeviceVariables.Where(x => x.Name == para.Key)
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.FirstOrDefault();
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if (deviceVariable != null)
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{
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DriverAddressIoArgModel ioArgModel = new()
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{
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Address = deviceVariable.DeviceAddress,
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Value = para.Value,
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ValueType = deviceVariable.DataType
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};
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var writeResponse = Driver
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.WriteAsync(e.RequestId, deviceVariable.Method, ioArgModel).Result;
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rpcResponse.IsSuccess = writeResponse.IsSuccess;
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if (!writeResponse.IsSuccess)
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{
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rpcResponse.Description = writeResponse.Description;
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continue;
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}
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}
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else
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{
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rpcResponse.IsSuccess = false;
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rpcResponse.Description = $"未能找到变量:{para.Key}";
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break;
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}
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}
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if (rpcConnected)
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Driver.Close();
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}
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else //连接失败
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{
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rpcResponse.IsSuccess = false;
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rpcResponse.Description = $"{e.DeviceName} 连接失败";
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}
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}
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}
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//其他RPC TODO
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else
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{
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rpcResponse.IsSuccess = false;
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rpcResponse.Description = $"方法:{e.Method}暂未实现";
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}
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//反馈RPC
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_myMqttClient.ResponseRpcAsync(rpcResponse);
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//纪录入库
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rpcLog.IsSuccess = rpcResponse.IsSuccess;
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rpcLog.Description = rpcResponse.Description;
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rpcLog.EndTime = DateTime.Now;
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using (var dc = new DataContext(IoTBackgroundService.connnectSetting, IoTBackgroundService.DbType))
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{
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dc.Set<RpcLog>().Add(rpcLog);
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dc.SaveChanges();
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}
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}
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}
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public void StopThread()
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{
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_logger.LogInformation($"线程停止:{Device.DeviceName}");
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_myMqttClient?.DeviceDisconnected(Device);
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if (_task != null)
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{
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if (_myMqttClient != null) _myMqttClient.OnExcRpc -= MyMqttClient_OnExcRpc;
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_tokenSource.Cancel();
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Driver.Close();
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}
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}
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public void Dispose()
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{
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Driver.Dispose();
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_interpreter = null;
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DeviceValues = null;
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Methods = null;
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_logger.LogInformation($"线程释放,{Device.DeviceName}");
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}
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//mysql会把一些符号转义，没找到原因，先临时处理下
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private string DealMysqlStr(string expression)
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{
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return expression.Replace("<", "<").Replace(">", ">").Replace("&", "&").Replace(""", "\"");
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}
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}
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} |