public Task Execute(IJobExecutionContext context)
{
return(Task.Run(async() =>
{
//如果中断在mqtt服务器列表中， 则取得最后一次收到消息的时间戳，
using (var scope = _scopeFactor.CreateScope())
using (var _dbContext = scope.ServiceProvider.GetRequiredService <ApplicationDbContext>())
{
var clientstatus = await _serverEx.GetClientStatusAsync();
clientstatus.ToList().ForEach(cs =>
{
if (_device.Exists(cs.ClientId))
{
var dev = _device.Get <Device>(cs.ClientId);
var d = _dbContext.Device.FirstOrDefault(d => d.Id == dev.Value.Id);
if (d != null)
{
d.LastActive = cs.LastPacketReceivedTimestamp;
}
}
});
//如果超时小于1 就设置为默认300秒
var tfx = from d in _dbContext.Device where d.Timeout < 1 select d;
tfx.ToList().ForEach(d => d.Timeout = 300);
//当前时间减去最后活跃时间如果小于超时时间， 则为在线， 否则就是离线
_dbContext.Device.ToList().ForEach(d =>
{
d.Online = DateTime.Now.Subtract(d.LastActive).TotalSeconds < d.Timeout;
});
await _dbContext.SaveChangesAsync();
}
}));
}
public MQTTServerHandler(ILogger <MQTTServerHandler> logger, IServiceScopeFactory scopeFactor, IMqttServerEx serverEx, DiagnosticsService diagnosticsService,
RuntimeStatusHandler systemStatusService, IOptions <AppSettings> options
)
{
_mcsetting = options.Value.MqttClient;
_logger = logger;
scope = scopeFactor.CreateScope();
_dbContext = scope.ServiceProvider.GetRequiredService <ApplicationDbContext>();
_serverEx = serverEx;
InboundCounter = diagnosticsService.CreateOperationsPerSecondCounter("mqtt.inbound_rate");
OutboundCounter = diagnosticsService.CreateOperationsPerSecondCounter("mqtt.outbound_rate");
systemStatusService.Set("mqtt.subscribers_count", () => Subscribers.Count);
systemStatusService.Set("mqtt.incoming_messages_count", () => IncomingMessages.Count);
systemStatusService.Set("mqtt.inbound_rate", () => InboundCounter.Count);
systemStatusService.Set("mqtt.outbound_rate", () => OutboundCounter.Count);
systemStatusService.Set("mqtt.connected_clients_count", () => serverEx.GetClientStatusAsync().GetAwaiter().GetResult().Count);
}
public Task Execute(IJobExecutionContext context)
{
return(Task.Run(async() =>
{
//如果中断在mqtt服务器列表中， 则取得最后一次收到消息的时间戳，
using (var scope = _scopeFactor.CreateScope())
using (var _dbContext = scope.ServiceProvider.GetRequiredService <ApplicationDbContext>())
{
var clientstatus = await _serverEx.GetClientStatusAsync();
clientstatus.ToList().ForEach(cs =>
{
try
{
var _device = cs.Session.Items?.FirstOrDefault(k => (string)k.Key == nameof(Device)).Value as Device;
var d = _dbContext.Device.FirstOrDefault(d => d.Id == _device.Id);
if (d != null)
{
d.LastActive = cs.LastPacketReceivedTimestamp.ToLocalTime();
d.Online = DateTime.Now.Subtract(d.LastActive).TotalSeconds < d.Timeout;
_logger.LogInformation($"设备{cs.ClientId}-{d.Name}({d.Id},{cs.Endpoint}) 最后活动时间{d.LastActive} 在线{d.Online} 发送消息:{cs.SentApplicationMessagesCount}({cs.BytesSent}kb) 收到{cs.ReceivedApplicationMessagesCount}({cs.BytesReceived / 1024}KB ) ");
if (!d.Online && DateTime.Now.Subtract(d.LastActive).TotalSeconds > d.Timeout * 5)
{
Task.Run(cs.DisconnectAsync);
}
}
}
catch (Exception ex)
{
_logger.LogInformation($"检查设备{cs.ClientId}-{cs.Endpoint}) 时遇到异常{ex.Message}{ex.InnerException?.Message} 发送消息:{cs.SentApplicationMessagesCount}({cs.BytesSent}kb) 收到{cs.ReceivedApplicationMessagesCount}({cs.BytesReceived / 1024}KB ) ");
}
});
var tfx = from d in _dbContext.Device where d.Timeout < 1 select d;
tfx.ToList().ForEach(d => d.Timeout = 300);
//当前时间减去最后活跃时间如果小于超时时间， 则为在线， 否则就是离线
_dbContext.Device.ToList().ForEach(d =>
{
d.Online = DateTime.Now.Subtract(d.LastActive).TotalSeconds < d.Timeout;
});
var saveresult = await _dbContext.SaveChangesAsync();
_logger.LogInformation($"设备检查程序已经处理{saveresult}调数据");
}
}));
}
public Task <IList <IMqttClientStatus> > GetClientsAsync()
{
return(_serverEx.GetClientStatusAsync());
}
public async Task <ActionResult <IList <IMqttClientStatus> > > GetClientStatus(Guid deviceId)
{
return(Ok(new ApiResult <IList <IMqttClientStatus> >(ApiCode.Success, "OK", await _serverEx.GetClientStatusAsync())));
}
internal void Server_ApplicationMessageReceived(object sender, MqttApplicationMessageReceivedEventArgs e)
{
if (string.IsNullOrEmpty(e.ClientId))
{
_logger.LogInformation($"Message: Topic=[{e.ApplicationMessage.Topic }]");
}
else
{
_logger.LogInformation($"Server received {e.ClientId}'s message: Topic=[{e.ApplicationMessage.Topic }],Retain=[{e.ApplicationMessage.Retain}],QualityOfServiceLevel=[{e.ApplicationMessage.QualityOfServiceLevel}]");
if (!lstTopics.ContainsKey(e.ApplicationMessage.Topic))
{
lstTopics.Add(e.ApplicationMessage.Topic, 1);
Task.Run(() => _serverEx.PublishAsync("$SYS/broker/subscriptions/count", lstTopics.Count.ToString()));
}
else
{
lstTopics[e.ApplicationMessage.Topic]++;
}
if (e.ApplicationMessage.Payload != null)
{
received += e.ApplicationMessage.Payload.Length;
}
string topic = e.ApplicationMessage.Topic;
var tpary = topic.Split('/', StringSplitOptions.RemoveEmptyEntries);
if (tpary.Length >= 3 && tpary[0] == "devices" && _device.Exists(e.ClientId))
{
Device device = JudgeOrCreateNewDevice(tpary, _device.Get <Device>(e.ClientId).Value);
if (device != null)
{
Dictionary <string, object> keyValues = new Dictionary <string, object>();
if (tpary.Length >= 4)
{
string keyname = tpary.Length >= 5 ? tpary[4] : tpary[3];
if (tpary[3].ToLower() == "xml")
{
try
{
var xml = new System.Xml.XmlDocument();
xml.LoadXml(e.ApplicationMessage.ConvertPayloadToString());
keyValues.Add(keyname, xml);
}
catch (Exception ex)
{
_logger.LogWarning(ex, $"xml data error {topic},{ex.Message}");
}
}
else if (tpary[3].ToLower() == "binary")
{
keyValues.Add(keyname, e.ApplicationMessage.Payload);
}
}
else
{
try
{
keyValues = e.ApplicationMessage.ConvertPayloadToDictionary();
}
catch (Exception ex)
{
_logger.LogWarning(ex, $"ConvertPayloadToDictionary Error {topic},{ex.Message}");
}
}
var devx = _device.Get <Device>(e.ClientId);
_device.TrySet(e.ClientId, devx.Value, TimeSpan.FromDays(365));
if (tpary[2] == "telemetry")
{
_queue.PublishTelemetryData(new RawMsg()
{
DeviceId = device.Id, MsgBody = keyValues, DataSide = DataSide.ClientSide, DataCatalog = DataCatalog.TelemetryData
});
}
else if (tpary[2] == "attributes")
{
if (tpary.Length > 3 && tpary[3] == "request")
{
Task.Run(async() =>
{
await RequestAttributes(tpary, e.ApplicationMessage.ConvertPayloadToDictionary(), device);
});
}
else
{
_queue.PublishAttributeData(new RawMsg()
{
DeviceId = device.Id, MsgBody = keyValues, DataSide = DataSide.ClientSide, DataCatalog = DataCatalog.AttributeData
});
}
}
}
}
else
{
Task.Run(async() =>
{
var ss = await _serverEx.GetClientStatusAsync();
ss.FirstOrDefault(t => t.ClientId == e.ClientId)?.DisconnectAsync();
});
}
}
}
