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1 feat(mqtt): 实现MQTT服务器状态管理与事件系统

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2
    3 1. 在MqttServer和MqttServerDto模型中添加IsConnect属性，用于跟踪连接状态
    4 2. 重构MqttManagementService服务，使用事件驱动方式管理服务器状态变化
    5 3. 实现MqttServerChangedEventArgs事件参数类，支持区分不同变更类型
    6 4. 在IEventService中添加OnMqttServerChanged事件，实现事件通知机制
    7 5. 优化数据存储结构，将MqttServers从ObservableCollection改为ObservableDictionary
    8 6. 更新MqttServiceManager以正确处理连接状态和事件触发
    9 7. 在WPF层更新UI以响应服务器状态变化
   10 8. 删除不再需要的Helper类(DataServicesHelper, MessageHelper, SiemensHelper)
   11 9. 在NLog配置中添加调试器输出目标以便调试
   12 10. 完善VariableHistoryViewModel防止空引用异常
This commit is contained in:
David P.G
2025-10-05 00:28:25 +08:00
parent d4562e600e
commit a6fc543e4f
25 changed files with 497 additions and 537 deletions
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13
DMS.Application/Services/Database/MqttAppService.cs
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@@ -98,24 +98,23 @@ public class MqttAppService : IMqttAppService
}
}
/// <summary>
/// 异步删除一个MQTT服务器（事务性操作）。
/// 异步根据ID删除一个MQTT服务器（事务性操作）。
/// </summary>
/// <param name="id">要删除MQTT服务器的ID。</param>
/// <returns>表示异步操作的任务。</returns>
/// <returns>如果删除成功则为 true，否则为 false。</returns>
/// <exception cref="ApplicationException">如果删除MQTT服务器时发生错误。</exception>
public async Task DeleteMqttServerAsync(int id)
public async Task<int> DeleteMqttServerAsync(int id)
{
try
{
await _repoManager.BeginTranAsync();
await _repoManager.MqttServers.DeleteByIdAsync(id);
await _repoManager.CommitAsync();
return await _repoManager.MqttServers.DeleteByIdAsync(id);
}
catch (Exception ex)
{
await _repoManager.RollbackAsync();
throw new ApplicationException("删除MQTT服务器时发生错误，操作已回滚。", ex);
throw new ApplicationException($"删除MQTT服务器时发生错误，操作已回滚,错误信息:{ex.Message}", ex);
}
}
}

15
DMS.Application/Services/EventService.cs
View File

@@ -145,5 +145,20 @@ public class EventService : IEventService
MqttConnectionChanged?.Invoke(sender, e);
}
/// <summary>
/// MQTT服务器改变事件
/// </summary>
public event EventHandler<MqttServerChangedEventArgs> OnMqttServerChanged;
/// <summary>
/// 触发MQTT服务器改变事件
/// </summary>
/// <param name="sender">事件发送者</param>
/// <param name="e">MQTT服务器改变事件参数</param>
public void RaiseMqttServerChanged(object sender, MqttServerChangedEventArgs e)
{
OnMqttServerChanged?.Invoke(sender, e);
}
#endregion
}

72
DMS.Application/Services/Management/MqttManagementService.cs
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@@ -14,16 +14,13 @@ public class MqttManagementService : IMqttManagementService
{
private readonly IMqttAppService _mqttAppService;
private readonly IAppDataStorageService _appDataStorageService;
private readonly IEventService _eventService;
/// <summary>
/// 当MQTT服务器数据发生变化时触发
/// </summary>
public event EventHandler<MqttServerChangedEventArgs> MqttServerChanged;
public MqttManagementService(IMqttAppService mqttAppService,IAppDataStorageService appDataStorageService)
public MqttManagementService(IMqttAppService mqttAppService, IAppDataStorageService appDataStorageService, IEventService eventService)
{
_mqttAppService = mqttAppService;
_appDataStorageService = appDataStorageService;
_eventService = eventService;
}
/// <summary>
@@ -47,7 +44,19 @@ public class MqttManagementService : IMqttManagementService
/// </summary>
public async Task<int> CreateMqttServerAsync(MqttServerDto mqttServerDto)
{
return await _mqttAppService.CreateMqttServerAsync(mqttServerDto);
var result = await _mqttAppService.CreateMqttServerAsync(mqttServerDto);
// 创建成功后，将MQTT服务器添加到内存中
if (result > 0)
{
mqttServerDto.Id = result; // 假设返回的ID是新创建的
if (_appDataStorageService.MqttServers.TryAdd(mqttServerDto.Id, mqttServerDto))
{
_eventService.RaiseMqttServerChanged(this, new MqttServerChangedEventArgs(ActionChangeType.Added, mqttServerDto));
}
}
return result;
}
/// <summary>
@@ -56,6 +65,10 @@ public class MqttManagementService : IMqttManagementService
public async Task UpdateMqttServerAsync(MqttServerDto mqttServerDto)
{
await _mqttAppService.UpdateMqttServerAsync(mqttServerDto);
// 更新成功后，更新内存中的MQTT服务器
_appDataStorageService.MqttServers.AddOrUpdate(mqttServerDto.Id, mqttServerDto, (key, oldValue) => mqttServerDto);
_eventService.RaiseMqttServerChanged(this, new MqttServerChangedEventArgs(ActionChangeType.Updated, mqttServerDto));
}
/// <summary>
@@ -63,45 +76,18 @@ public class MqttManagementService : IMqttManagementService
/// </summary>
public async Task DeleteMqttServerAsync(int id)
{
await _mqttAppService.DeleteMqttServerAsync(id);
}
/// <summary>
/// 在内存中添加MQTT服务器
/// </summary>
public void AddMqttServerToMemory(MqttServerDto mqttServerDto)
{
if (_appDataStorageService.MqttServers.TryAdd(mqttServerDto.Id, mqttServerDto))
var mqttServer = await _mqttAppService.GetMqttServerByIdAsync(id); // 获取MQTT服务器信息用于内存删除
var result = await _mqttAppService.DeleteMqttServerAsync(id);
// 删除成功后，从内存中移除MQTT服务器
if (result>0)
{
OnMqttServerChanged(new MqttServerChangedEventArgs(DataChangeType.Added, mqttServerDto));
if (_appDataStorageService.MqttServers.TryRemove(id, out var mqttServerDto))
{
_eventService.RaiseMqttServerChanged(this, new MqttServerChangedEventArgs(ActionChangeType.Deleted, mqttServerDto));
}
}
}
/// <summary>
/// 在内存中更新MQTT服务器
/// </summary>
public void UpdateMqttServerInMemory(MqttServerDto mqttServerDto)
{
_appDataStorageService.MqttServers.AddOrUpdate(mqttServerDto.Id, mqttServerDto, (key, oldValue) => mqttServerDto);
OnMqttServerChanged(new MqttServerChangedEventArgs(DataChangeType.Updated, mqttServerDto));
}
/// <summary>
/// 在内存中删除MQTT服务器
/// </summary>
public void RemoveMqttServerFromMemory(int mqttServerId)
{
if (_appDataStorageService.MqttServers.TryRemove(mqttServerId, out var mqttServerDto))
{
OnMqttServerChanged(new MqttServerChangedEventArgs(DataChangeType.Deleted, mqttServerDto));
}
}
/// <summary>
/// 触发MQTT服务器变更事件
/// </summary>
protected virtual void OnMqttServerChanged(MqttServerChangedEventArgs e)
{
MqttServerChanged?.Invoke(this, e);
}
}