546 lines
20 KiB
C#
546 lines
20 KiB
C#
using Common.Attributes;
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using Model.Entity;
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using Model.Models;
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using OxyPlot;
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using OxyPlot.Axes;
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using OxyPlot.Legends;
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using OxyPlot.Series;
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using Service.Interface;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Diagnostics;
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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 System.Windows.Input;
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using System.Windows.Threading;
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using UIShare.GlobalVariable;
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using UIShare.PubEvent;
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using UIShare.ViewModelBase;
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namespace MonitorModule.ViewModels
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{
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public class MonitorViewModel : NavigateViewModelBase, IRegionMemberLifetime, IDisposable
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{
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#region 属性
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private IMonitorValueService _monitorValueService;
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public bool KeepAlive => true;
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public ScopedContext _scopedContext { get; set; } = null!;
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public GlobalInfo _globalInfo { get; set; }
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private string _testStatus = string.Empty;
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public string TestStatus
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{
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get => _testStatus;
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set => SetProperty(ref _testStatus, value);
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}
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public PlotModel Plot { get; }
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/// <summary>已添加的监测通道列表</summary>
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public ObservableCollection<MonitorChannel> Channels { get; } = new();
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/// <summary>可添加的设备方法列表（供用户选择）</summary>
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public ObservableCollection<AvailableMethodItem> AvailableMethods { get; } = new();
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private MonitorChannel? _selectedChannel;
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public MonitorChannel? SelectedChannel
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{
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get => _selectedChannel;
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set => SetProperty(ref _selectedChannel, value);
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}
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private AvailableMethodItem? _selectedAvailableMethod;
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public AvailableMethodItem? SelectedAvailableMethod
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{
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get => _selectedAvailableMethod;
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set => SetProperty(ref _selectedAvailableMethod, value);
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}
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private string _statusMessage = "图表已就绪，暂无监测项";
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public string StatusMessage
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{
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get => _statusMessage;
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set => SetProperty(ref _statusMessage, value);
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}
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#endregion
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#region 命令
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public ICommand AddChannelCommand { get; }
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public ICommand DeleteChannelCommand { get; }
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public ICommand ResetViewCommand { get; }
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public ICommand RefreshDataCommand { get; }
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public ICommand RefreshCommand { get; }
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#endregion
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#region 私有字段
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private bool IsInitiated = false;
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private IScopedProvider? _scope;
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private DeviceManager? _deviceManager;
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private CancellationTokenSource? _monitorCTS = new();
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// 颜色调色盘
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private static readonly OxyColor[] _palette =
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{
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OxyColors.SteelBlue, OxyColors.IndianRed, OxyColors.SeaGreen,
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OxyColors.DarkOrange, OxyColors.MediumPurple, OxyColors.Goldenrod,
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OxyColors.Teal, OxyColors.Crimson, OxyColors.OliveDrab
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};
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private int _colorIndex;
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/// <summary>广播器（由 UIShare 层注入，每 Scope 一个实例）</summary>
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private HardwareDataBroadcaster? _broadcaster;
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/// <summary>用于 OxyPlot X 轴相对秒数</summary>
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private readonly Stopwatch _stopwatch = new();
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/// <summary>OxyPlot 刷新定时器（仅负责滚动 X 轴 + InvalidatePlot）</summary>
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private readonly DispatcherTimer _plotRefreshTimer;
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/// <summary>事件订阅令牌，用于 Dispose 时取消订阅</summary>
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private SubscriptionToken? _subscriptionToken;
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// ==========================================
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// 批量入库核心结构
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// ==========================================
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private readonly ConcurrentQueue<MonitorValueEntity> _insertQueue = new();
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private Task? _dbFlushTask;
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private const int BulkInsertThreshold = 50;
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private int _isFlushing = 0;
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#endregion
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public MonitorViewModel(IContainerExtension container) : base(container)
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{
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_globalInfo = container.Resolve<GlobalInfo>();
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_monitorValueService = container.Resolve<IMonitorValueService>();
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Plot = BuildEmptyPlot();
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AddChannelCommand = new DelegateCommand(OnAddChannel);
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DeleteChannelCommand = new DelegateCommand(OnDeleteChannel);
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ResetViewCommand = new DelegateCommand(OnResetView);
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RefreshDataCommand = new DelegateCommand(OnRefreshData);
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RefreshCommand = new DelegateCommand(OnExpand);
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// OxyPlot 刷新定时器（1000ms，只负责视觉更新）
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_plotRefreshTimer = new DispatcherTimer(DispatcherPriority.Background)
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{
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Interval = TimeSpan.FromMilliseconds(1000)
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};
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_plotRefreshTimer.Tick += OnPlotRefreshTick;
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}
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public void Dispose()
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{
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_monitorCTS?.Cancel();
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_monitorCTS?.Dispose();
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_monitorCTS = null;
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_plotRefreshTimer.Stop();
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_plotRefreshTimer.Tick -= OnPlotRefreshTick;
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_stopwatch.Stop();
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// 取消 EventAggregator 订阅
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if (_subscriptionToken != null)
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_eventAggregator.GetEvent<HardwareDataReportedEvent>().Unsubscribe(_subscriptionToken);
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if (_dbFlushTask != null)
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{
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try { _dbFlushTask.Wait(TimeSpan.FromSeconds(1.5)); } catch { }
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}
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// 3. 释放容器作用域
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_scope?.Dispose();
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Channels.Clear();
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AvailableMethods.Clear();
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}
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#region 事件驱动：接收广播数据
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/// <summary>
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/// 由 HardwareDataBroadcaster 通过 EventAggregator 广播触发。
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/// 已通过 ThreadOption.UIThread 确保在 UI 线程执行。
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/// 通过 HardwareFingerprint + MethodName 匹配监测通道。
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/// </summary>
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private void OnHardwareDataReceived(HardwareReportArgs args)
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{
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// 仅处理属于当前 Scope 的事件
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if (string.IsNullOrEmpty(TestStatus) || args.Scope != TestStatus) return;
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// 以硬件指纹 + 方法名唯一匹配通道（与逻辑名解耦）
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var channel = Channels.FirstOrDefault(c =>
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c.Fingerprint == args.HardwareFingerprint &&
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c.MethodName == args.MethodName &&
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c.IsMonitored);
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if (channel == null) return;
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double time = _stopwatch.Elapsed.TotalSeconds;
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// 记录数据点（线程安全：Record 内部 ConcurrentQueue + Series 操作）
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channel.Record(time, args.Value);
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// 入队数据库批量写入
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// CreateTime 使用 args.Time（采样触发时刻），而不是 DateTime.Now（设备响应到达时刻），
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// 这样即使设备响应有延迟，数据库里的时间戳仍然按设定采样间隔分布。
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var entity = new MonitorValueEntity
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{
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MonitorName = channel.DisplayName,
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MonitorValue = args.Value,
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Scope = args.Scope,
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CreateTime = args.Time,
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IsDel = 0
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};
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_insertQueue.Enqueue(entity);
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if (_insertQueue.Count >= BulkInsertThreshold)
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{
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_ = Task.Run(async () => await DoFlushWorkAsync().ConfigureAwait(false));
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}
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}
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#endregion
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#region OxyPlot 视觉刷新定时器
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private void OnPlotRefreshTick(object? sender, EventArgs e)
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{
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if (!_stopwatch.IsRunning) return;
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double elapsed = _stopwatch.Elapsed.TotalSeconds;
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var xAxis = Plot.Axes.FirstOrDefault(a => a.Position == AxisPosition.Bottom);
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if (xAxis != null)
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{
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double window = 10000 * 0.1; // 20s 视窗
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xAxis.Minimum = Math.Max(0, elapsed - window);
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xAxis.Maximum = elapsed + 0.5;
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}
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Plot.InvalidatePlot(true);
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}
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#endregion
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#region 后台数据库批量入库
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private void StartDbFlushWorker(CancellationToken token)
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{
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_dbFlushTask = Task.Run(async () =>
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{
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while (!token.IsCancellationRequested)
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{
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try
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{
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await Task.Delay(TimeSpan.FromSeconds(1), token).ConfigureAwait(false);
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await DoFlushWorkAsync().ConfigureAwait(false);
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}
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catch (OperationCanceledException) { break; }
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catch (Exception ex)
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{
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System.Diagnostics.Debug.WriteLine($"[DB Worker Error] {ex.Message}");
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}
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}
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await DoFlushWorkAsync().ConfigureAwait(false);
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}, token);
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}
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private async Task DoFlushWorkAsync()
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{
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if (_insertQueue.IsEmpty) return;
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if (Interlocked.CompareExchange(ref _isFlushing, 1, 0) != 0) return;
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try
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{
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var listToInsert = new List<MonitorValueEntity>();
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while (_insertQueue.TryDequeue(out var entity)) listToInsert.Add(entity);
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if (listToInsert.Count > 0)
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{
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var result = await _monitorValueService.InsertRangeAsync(listToInsert).ConfigureAwait(false);
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}
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}
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finally { Interlocked.Exchange(ref _isFlushing, 0); }
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}
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#endregion
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#region Navigation 导航
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public override void OnNavigatedTo(NavigationContext navigationContext)
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{
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base.OnNavigatedTo(navigationContext);
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if (!IsInitiated && navigationContext.Parameters.ContainsKey("Name"))
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{
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TestStatus = navigationContext.Parameters.GetValue<string>("Name");
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Plot.Title = $"监控 - {TestStatus}";
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Plot.InvalidatePlot(false);
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_scope = _globalInfo.ScopeDic[TestStatus];
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_scopedContext = _scope.Resolve<ScopedContext>();
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_deviceManager = _scope.Resolve<DeviceManager>();
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_broadcaster = _scope.Resolve<HardwareDataBroadcaster>();
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IsInitiated = true;
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if (_monitorCTS == null) _monitorCTS = new CancellationTokenSource();
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// 1. 启动后台数据库消费
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StartDbFlushWorker(_monitorCTS.Token);
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// 2. 扫描可监测方法（供 UI 选择）
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DiscoverAvailableMethods();
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// 3. 启动广播器（Discover + Start）
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_broadcaster.Discover();
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_broadcaster.Start();
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// 4. 订阅 HardwareDataReportedEvent（UI 线程回调）
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_subscriptionToken = _eventAggregator.GetEvent<HardwareDataReportedEvent>()
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.Subscribe(OnHardwareDataReceived, ThreadOption.UIThread);
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// 5. 启动 OxyPlot 视觉刷新定时器
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_stopwatch.Start();
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_plotRefreshTimer.Start();
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}
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}
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#endregion
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#region PlotModel 构建
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private static PlotModel BuildEmptyPlot()
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{
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var pm = new PlotModel
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{
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Title = string.Empty,
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PlotAreaBorderColor = OxyColors.LightGray,
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Background = OxyColors.White
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};
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pm.Axes.Add(new LinearAxis
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{
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Position = AxisPosition.Bottom,
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Title = "时间 (s)",
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MajorGridlineStyle = LineStyle.Dot,
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MinorGridlineStyle = LineStyle.None
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});
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pm.Axes.Add(new LinearAxis
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{
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Position = AxisPosition.Left,
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Title = "值",
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MajorGridlineStyle = LineStyle.Dot,
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MinorGridlineStyle = LineStyle.None
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});
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pm.Legends.Add(new Legend
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{
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LegendPosition = LegendPosition.RightTop,
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LegendBackground = OxyColor.FromAColor(200, OxyColors.White),
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LegendBorder = OxyColors.LightGray
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});
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return pm;
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}
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#endregion
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#region 设备方法发现（仅用于 UI 展示可选项）
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/// <summary>
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/// 通过 GlobalInfo.HardwarePool 构建 设备实例引用→硬件指纹 的反向查找表。
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/// </summary>
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private Dictionary<object, string> BuildInstanceToFingerprint()
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{
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var map = new Dictionary<object, string>(ReferenceEqualityComparer.Instance);
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foreach (var poolEntry in _globalInfo.HardwarePool)
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{
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var lazy = poolEntry.Value;
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if (lazy.IsValueCreated && lazy.Value != null)
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map[lazy.Value] = poolEntry.Key;
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}
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return map;
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}
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private void DiscoverAvailableMethods()
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{
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AvailableMethods.Clear();
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if (_deviceManager?.DeviceMap == null || _deviceManager.DeviceMap.Count == 0)
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{
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StatusMessage = "当前工位无可用设备";
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return;
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}
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var instanceToFp = BuildInstanceToFingerprint();
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foreach (var kvp in _deviceManager.DeviceMap)
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{
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string deviceName = kvp.Key;
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var device = kvp.Value;
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var deviceType = device.GetType();
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// 反查该实例的硬件指纹
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if (!instanceToFp.TryGetValue(device, out string? fingerprint))
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continue;
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var methods = deviceType.GetMethods(BindingFlags.Public | BindingFlags.Instance)
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.Where(m =>
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{
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if (m.GetCustomAttribute<MonitorableAttribute>() == null) return false;
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if (m.ReturnType != typeof(Task<string>)) return false;
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var parms = m.GetParameters();
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return parms.Length == 0 ||
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(parms.Length == 1 && parms[0].ParameterType == typeof(CancellationToken));
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});
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foreach (var method in methods)
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{
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var attr = method.GetCustomAttribute<MonitorableAttribute>();
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string displayName = !string.IsNullOrEmpty(attr?.Description)
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? $"{deviceName}.{attr.Description}"
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: $"{deviceName}.{method.Name}";
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AvailableMethods.Add(new AvailableMethodItem
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{
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DeviceName = deviceName,
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Fingerprint = fingerprint,
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MethodName = method.Name,
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DisplayName = displayName,
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MethodInfo = method,
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Device = device
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});
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}
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}
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StatusMessage = AvailableMethods.Count > 0
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? $"发现 {AvailableMethods.Count} 个可监测项"
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: "未发现可监测的设备方法";
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}
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#endregion
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#region 命令处理
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private void OnAddChannel()
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{
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var method = SelectedAvailableMethod;
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if (method == null)
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{
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StatusMessage = "请先在列表中选择一个监测项";
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return;
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}
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// 以指纹+方法名去重，防止同一物理设备重复添加
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if (Channels.Any(c => c.Fingerprint == method.Fingerprint && c.MethodName == method.MethodName))
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{
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StatusMessage = $"监测项 [{method.DisplayName}] 已存在";
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return;
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}
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var color = _palette[_colorIndex % _palette.Length];
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_colorIndex++;
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var channel = new MonitorChannel
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{
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DeviceName = method.DeviceName,
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Fingerprint = method.Fingerprint,
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MethodName = method.MethodName,
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DisplayName = method.DisplayName,
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Color = color,
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IsMonitored = true,
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IsDisplayed = true
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};
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channel.Series = new LineSeries
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{
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Title = channel.DisplayName,
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Color = color,
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StrokeThickness = 1.5
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};
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Plot.Series.Add(channel.Series);
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channel.PropertyChanged += (s, e) =>
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{
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if (e.PropertyName == nameof(MonitorChannel.IsDisplayed))
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OnChannelDisplayChanged(channel);
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};
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Channels.Add(channel);
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SelectedChannel = channel;
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Plot.InvalidatePlot(true);
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StatusMessage = $"已添加监测项 [{channel.DisplayName}]，当前共 {Channels.Count} 项";
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}
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private void OnDeleteChannel()
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{
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var target = SelectedChannel ?? Channels.LastOrDefault();
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if (target == null)
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{
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StatusMessage = "无可删除的监测项";
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return;
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}
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if (target.Series != null) Plot.Series.Remove(target.Series);
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Channels.Remove(target);
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SelectedChannel = Channels.LastOrDefault();
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Plot.InvalidatePlot(true);
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StatusMessage = $"已删除监测项 [{target.DisplayName}]，剩余 {Channels.Count} 项";
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}
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private void OnResetView()
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{
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Plot.ResetAllAxes();
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Plot.InvalidatePlot(false);
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StatusMessage = "视图已按数据范围复原";
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}
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private void OnRefreshData()
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{
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Plot.InvalidatePlot(true);
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StatusMessage = $"已刷新（{DateTime.Now:HH:mm:ss}）";
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}
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private void OnExpand()
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{
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if (string.IsNullOrEmpty(TestStatus)) return;
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_globalInfo.CurrentScope = TestStatus;
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_eventAggregator.GetEvent<ExpandViewEvent>().Publish(TestStatus);
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}
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#endregion
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#region 显示/隐藏切换与数学变换
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public void OnChannelDisplayChanged(MonitorChannel channel)
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{
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if (channel.IsDisplayed)
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{
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if (channel.Series == null)
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{
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channel.Series = new LineSeries
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{
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Title = channel.DisplayName,
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Color = channel.Color,
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StrokeThickness = 1.5
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};
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var recent = channel.DataPoints.ToArray();
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var startIdx = Math.Max(0, recent.Length - 10000);
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for (int i = startIdx; i < recent.Length; i++)
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channel.Series.Points.Add(new DataPoint(recent[i].Time, recent[i].DisplayValue));
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Plot.Series.Add(channel.Series);
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Plot.InvalidatePlot(true);
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}
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}
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else
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{
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if (channel.Series != null)
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{
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Plot.Series.Remove(channel.Series);
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channel.Series = null;
|
||
Plot.InvalidatePlot(true);
|
||
}
|
||
}
|
||
}
|
||
|
||
public void OnChannelMathChanged(MonitorChannel channel)
|
||
{
|
||
if (channel.Series == null) return;
|
||
var points = channel.DataPoints.ToArray();
|
||
channel.Series.Points.Clear();
|
||
var startIdx = Math.Max(0, points.Length - 10000);
|
||
for (int i = startIdx; i < points.Length; i++)
|
||
channel.Series.Points.Add(new DataPoint(points[i].Time, points[i].DisplayValue));
|
||
Plot.InvalidatePlot(true);
|
||
}
|
||
#endregion
|
||
}
|
||
}
|