176 lines
8.0 KiB
C#
176 lines
8.0 KiB
C#
using Microsoft.EntityFrameworkCore;
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using PluginInterface;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using System.Threading;
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using System.Threading.Tasks;
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using IoTGateway.DataAccess;
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using IoTGateway.Model;
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using WalkingTec.Mvvm.Core;
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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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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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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 { get; set; } = null;
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private DateTime TsStartDt = new DateTime(1970, 1, 1);
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private CancellationTokenSource tokenSource = new CancellationTokenSource();
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private Interpreter Interpreter = null;
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public DeviceThread(Device device, IDriver driver, string ProjectId, MyMqttClient myMqttClient, Interpreter interpreter, IMqttServer mqttServer, ILogger logger)
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{
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_device = device;
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_driver = driver;
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Interpreter = interpreter;
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_logger = logger;
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Methods = _driver.GetType().GetMethods().Where(x => x.GetCustomAttribute(typeof(MethodAttribute)) != null).ToList();
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if (_device.AutoStart)
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{
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_logger.LogInformation($"线程已启动:{_device.DeviceName}");
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using (var DC = new DataContext(IoTBackgroundService.connnectSetting, IoTBackgroundService.DBType))
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{
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if (_device.DeviceVariables != null)
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{
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foreach (var item in _device.DeviceVariables)
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{
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DeviceValues[item.ID] = new() { StatusType = VaribaleStatusTypeEnum.Bad };
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}
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}
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}
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myMqttClient.UploadAttributeAsync(device.DeviceName, device.DeviceConfigs.Where(x => x.DataSide == DataSide.ClientSide).ToDictionary(x => x.DeviceConfigName, x => x.Value));
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task = Task.Run(() =>
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{
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while (true)
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{
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if (tokenSource.IsCancellationRequested)
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{
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_logger.LogInformation($"停止线程:{_device.DeviceName}");
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return;
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}
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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)
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{
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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, new object[1] { ioarg });
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if (ret.StatusType == VaribaleStatusTypeEnum.Good && !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).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 || DeviceValues[item.ID].Value?.ToString() != ret.Value?.ToString() || DeviceValues[item.ID].CookedValue?.ToString() != 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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mqttServer.PublishAsync($"internal/v1/gateway/telemetry/{_device.DeviceName}/{item.Name}", JsonConvert.SerializeObject(ret));
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//这是在线组态要用的
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mqttServer.PublishAsync($"v1/gateway/telemetry/{_device.DeviceName}/{item.Name}", JsonConvert.SerializeObject(ret.CookedValue));
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}
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DeviceValues[item.ID] = ret;
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}
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payLoad.TS = (long)(DateTime.Now - 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
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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.PublishTelemetry(_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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driver.Connect();
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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($"线程循环异常,{_device.DeviceName}", ex);
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}
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Thread.Sleep((int)_driver.MinPeriod);
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}
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});
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}
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}
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public void StopThread()
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{
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_logger.LogInformation($"线程停止:{_device.DeviceName}");
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if (task != null)
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{
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_driver.Close();
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tokenSource.Cancel();
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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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_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("&", "&");
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}
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}
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}
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