mirror of
https://gitee.com/iioter/iotgateway.git
synced 2024-11-29 18:28:09 +08:00
398 lines
18 KiB
C#
398 lines
18 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 MqttServer _mqttServer;
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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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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 ManualResetEvent resetEvent = new(true);
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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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_mqttServer = mqttServer;
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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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item.StatusType = VaribaleStatusTypeEnum.Bad;
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if (string.IsNullOrWhiteSpace(item.Alias))
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item.Alias = string.Empty;
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}
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}
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CreateThread().Wait();
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}
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}
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public async Task CreateThread()
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{
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_task = await Task.Factory.StartNew(async () =>
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{
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await Task.Delay(5000);
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//上传客户端属性
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foreach (var deviceVariables in Device.DeviceVariables!.GroupBy(x => x.Alias))
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{
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_myMqttClient.UploadAttributeAsync(string.IsNullOrWhiteSpace(deviceVariables.Key)
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? Device.DeviceName
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: deviceVariables.Key,
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Device.DeviceConfigs.Where(x => x.DataSide == DataSide.ClientSide || x.DataSide == DataSide.AnySide)
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.ToDictionary(x => x.DeviceConfigName, x => x.Value));
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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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resetEvent.WaitOne();
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try
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{
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if (Driver.IsConnected)
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{
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foreach (var deviceVariables in Device.DeviceVariables.Where(x => x.ProtectType != ProtectTypeEnum.WriteOnly).GroupBy(x => x.Alias))
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{
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string deviceName = string.IsNullOrWhiteSpace(deviceVariables.Key)
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? Device.DeviceName
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: deviceVariables.Key;
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Dictionary<string, List<PayLoad>> sendModel = new()
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{ { deviceName, new() } };
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if (deviceVariables.Any())
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{
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var payLoadTrigger = new PayLoad() { Values = new() };
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bool canPub = false;
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var triggerVariables = deviceVariables.Where(x => x.IsTrigger).ToList();
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ReadVariables(ref triggerVariables, ref payLoadTrigger, _mqttServer);
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var triggerValues = triggerVariables.ToDictionary(x=>x.Name,x=>x.CookedValue);
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var payLoadUnTrigger = new PayLoad() { Values = new() };
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//有需要上传 或者全部是非触发
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if (triggerValues.Values.Any(x => x is true) || !triggerVariables.Any())
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{
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var variables = deviceVariables.Where(x => !triggerVariables.Select(y => y.ID).Contains(x.ID)).ToList();
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ReadVariables(ref variables, ref payLoadUnTrigger, _mqttServer);
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canPub = true;
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}
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if (canPub)
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{
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var payLoad = new PayLoad()
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{
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Values = deviceVariables
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.Where(x => x.StatusType == VaribaleStatusTypeEnum.Good && x.IsUpload)
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.ToDictionary(kv => kv.Name, kv => kv.CookedValue),
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DeviceStatus = payLoadTrigger.DeviceStatus
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};
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payLoad.TS = (long)(DateTime.UtcNow - _tsStartDt).TotalMilliseconds;
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payLoad.DeviceStatus = DeviceStatusTypeEnum.Good;
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sendModel[deviceName] = new List<PayLoad> { payLoad };
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_myMqttClient
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.PublishTelemetryAsync(deviceName,
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Device, sendModel).Wait();
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}
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if (deviceVariables.Any(x => x.StatusType == VaribaleStatusTypeEnum.Bad))
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_myMqttClient?.DeviceDisconnected(deviceName, Device);
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}
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}
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//全部读取异常且连接正常就断开
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if (Device.DeviceVariables
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.All(x => x.StatusType != VaribaleStatusTypeEnum.Good) && 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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}
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else
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{
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foreach (var deviceVariables in Device.DeviceVariables!.GroupBy(x => x.Alias))
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{
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string deviceName = string.IsNullOrWhiteSpace(deviceVariables.Key)
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? Device.DeviceName
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: deviceVariables.Key;
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_myMqttClient?.DeviceDisconnected(deviceName, Device);
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}
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if (Driver.Connect())
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{
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foreach (var deviceVariables in Device.DeviceVariables!.GroupBy(x => x.Alias))
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{
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string deviceName = string.IsNullOrWhiteSpace(deviceVariables.Key)
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? Device.DeviceName
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: deviceVariables.Key;
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_myMqttClient?.DeviceConnected(deviceName, Device);
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}
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}
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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(ex, $"线程循环异常,{Device.DeviceName}");
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}
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await Task.Delay(Device.DeviceVariables!.Any() ? (int)Driver.MinPeriod : 10000);
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}
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}, TaskCreationOptions.LongRunning);
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}
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private void ReadVariables(ref List<DeviceVariable> variables, ref PayLoad payLoad, MqttServer mqttServer)
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{
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if (!variables.Any())
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return;
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foreach (var item in variables.OrderBy(x => x.Index))
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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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EndianType = item.EndianType
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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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ret.Timestamp = DateTime.Now;
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item.EnqueueVariable(ret.Value);
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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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var expressionText = DealMysqlStr(item.Expressions)
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.Replace("raw",
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item.Values[0] is bool
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? $"Convert.ToBoolean(\"{item.Values[0]}\")"
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: item.Values[0]?.ToString())
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.Replace("$ppv",
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item.Values[2] is bool
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? $"Convert.ToBoolean(\"{item.Values[2]}\")"
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: item.Values[2]?.ToString())
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.Replace("$pv",
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item.Values[1] is bool
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? $"Convert.ToBoolean(\"{item.Values[1]}\")"
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: item.Values[1]?.ToString());
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try
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{
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ret.CookedValue = _interpreter.Eval(expressionText);
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}
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catch (Exception)
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{
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ret.Message = $"表达式错误：{expressionText}";
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ret.StatusType = VaribaleStatusTypeEnum.ExpressionError;
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}
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}
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else
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ret.CookedValue = ret.Value;
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item.EnqueueCookedVariable(ret.CookedValue);
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payLoad.Values[item.Name] = ret.CookedValue;
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ret.VarId = item.ID;
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item.Value = ret.Value;
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item.CookedValue = ret.CookedValue;
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item.StatusType = ret.StatusType;
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item.Timestamp = ret.Timestamp;
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item.Message = ret.Message;
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//变化了才推送到mqttserver，用于前端展示
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if (JsonConvert.SerializeObject(item.Values[1]) != JsonConvert.SerializeObject(item.Values[0])|| JsonConvert.SerializeObject(item.CookedValues[1]) != JsonConvert.SerializeObject(item.CookedValues[0]))
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{
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var msgInternal = new InjectedMqttApplicationMessage(
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new MqttApplicationMessage()
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{
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Topic =
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$"internal/v1/gateway/telemetry/{Device.DeviceName}/{item.Name}",
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PayloadSegment = 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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}
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Thread.Sleep((int)Device.CmdPeriod);
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}
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}
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public void MyMqttClient_OnExcRpc(object? sender, RpcRequest e)
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{
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//设备名或者设备别名
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if (e.DeviceName == Device.DeviceName || Device.DeviceVariables.Select(x => x.Alias).Contains(e.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($"{e.DeviceName}收到RPC,{e}");
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RpcResponse rpcResponse = new()
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{ DeviceName = e.DeviceName, RequestId = e.RequestId, IsSuccess = false, Method = e.Method };
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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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resetEvent.Reset();
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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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//先找别名中的变量名，找不到就用设备名
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DeviceVariable? deviceVariable;
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if (e.DeviceName == Device.DeviceName)
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deviceVariable = Device.DeviceVariables.FirstOrDefault(x =>
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x.Name == para.Key );
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else
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deviceVariable = Device.DeviceVariables.FirstOrDefault(x =>
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x.Name == para.Key && x.Alias == e.DeviceName);
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if (deviceVariable != null && deviceVariable.ProtectType != ProtectTypeEnum.ReadOnly)
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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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EndianType = deviceVariable.EndianType
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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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}
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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 += $"未能找到支持写入的变量:{para.Key},";
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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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resetEvent.Set();
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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 = $"方法:{e.Method}暂未实现";
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}
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//反馈RPC
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_myMqttClient.ResponseRpcAsync(rpcResponse).Wait();
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//纪录入库
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rpcLog.IsSuccess = rpcResponse.IsSuccess;
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rpcLog.Description = rpcResponse.Description;
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rpcLog.EndTime = DateTime.Now;
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using var dc = new DataContext(IoTBackgroundService.connnectSetting, IoTBackgroundService.DbType);
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dc.Set<RpcLog>().Add(rpcLog);
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dc.SaveChanges();
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}
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}
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public void StopThread()
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{
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_logger.LogInformation($"线程停止:{Device.DeviceName}");
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if (Device.DeviceVariables != null && Device.DeviceVariables.Any())
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{
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foreach (var deviceVariables in Device.DeviceVariables.GroupBy(x => x.Alias))
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{
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string deviceName = string.IsNullOrWhiteSpace(deviceVariables.Key)
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? Device.DeviceName
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: deviceVariables.Key;
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_myMqttClient?.DeviceDisconnected(deviceName, Device);
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}
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}
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if (_task == null) return;
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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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public void Dispose()
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{
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Driver.Dispose();
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_interpreter = 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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} |