public string Subscribe(string uid, string topicFilter, Action <MqttApplicationMessageReceivedEventArgs> callback)
{
if (topicFilter == null)
{
throw new ArgumentNullException(nameof(topicFilter));
}
if (callback == null)
{
throw new ArgumentNullException(nameof(callback));
}
if (string.IsNullOrEmpty(uid))
{
uid = Guid.NewGuid().ToString("D");
}
lock (Subscribers)
{
Subscribers[uid] = new MqttSubscriber(uid, topicFilter, callback);
}
// Enqueue all retained messages to match the expected MQTT behavior.
// Here we have no client per subscription. So we need to adopt some
// features here manually.
foreach (var retainedMessage in _serverEx.GetRetainedApplicationMessagesAsync().GetAwaiter().GetResult())
{
IncomingMessages.Add(new MqttApplicationMessageReceivedEventArgs(null, retainedMessage));
}
return(uid);
}
public void ProcessMessageString(string message, long senderId, bool isglobal)
{
RawMessage rawMessage = new RawMessage();
rawMessage.isGlobal = isglobal;
rawMessage.SenderReceiver = senderId;
rawMessage.Type = (MessageType)BitConverter.ToInt32(Convert.FromBase64String(message.Substring(0, 8)), 0);
rawMessage.Args = Convert.FromBase64String(message.Substring(8));
IncomingMessages.Add(rawMessage);
}
private void ProcessBuffer(byte[] buffer)
{
if (_currentIncomingMessage == null)
{
_currentIncomingMessage = new mBlockIncomingMessage();
}
foreach (var value in buffer)
{
/* Received message format
* 0xFF - Header Byte 1
* 0x55 - Header Byte 2
* 0xXX - Message index corresponding to request
* 0x0X - Payload Type - 1 byte 2 float 3 short 4 len+string 5 double
* [0xXX....0xXX] Payload matcing size
* 0x0D
* 0x0A
*/
_currentIncomingMessage.AddByte(value);
if (_currentIncomingMessage.EndsWithCRLF())
{
IncomingMessages.Add(_currentIncomingMessage);
if (_currentIncomingMessage.BufferSize > 4)
{
_currentIncomingMessage.MessageSerialNumber = _currentIncomingMessage.Buffer[2];
_logger.NotifyUserInfo("mBlock", $"<<< {_currentIncomingMessage.MessageSerialNumber:X2}. " + _currentIncomingMessage.MessageHexString);
ProcessMessage(_currentIncomingMessage);
}
else
{
_logger.NotifyUserInfo("mBlock", $"<<< XXXXX. " + _currentIncomingMessage.MessageHexString);
}
_currentIncomingMessage = new mBlockIncomingMessage();
}
}
}
private void ProcessBuffer(byte[] buffer)
{
if (_currentIncomingMessage == null)
{
_currentIncomingMessage = new mBlockIncomingMessage();
}
foreach (var value in buffer)
{
/* Received message format
* 0xFF - Header Byte 1
* 0x55 - Header Byte 2
* 0xXX - Message index corresponding to request
* 0x0X - Payload Type - 1 byte 2 float 3 short 4 len+string 5 double
* [0xXX....0xXX] Payload matcing size
* 0x0D
* 0x0A
*/
_currentIncomingMessage.AddByte(value);
if (_currentIncomingMessage.EndsWithCRLF())
{
IncomingMessages.Add(_currentIncomingMessage);
// Debug.WriteLine(String.Format("{0:000000} <<<", (DateTime.Now - _start).TotalMilliseconds) + _currentIncomingMessage.MessageHexString);
_logger.NotifyUserInfo("mBlock", "<<< " + _currentIncomingMessage.MessageHexString);
if (_currentIncomingMessage.BufferSize > 4)
{
_currentIncomingMessage.MessageSerialNumber = _currentIncomingMessage.Buffer[2];
ProcessMessage(_currentIncomingMessage);
}
_currentIncomingMessage = new mBlockIncomingMessage();
}
}
}
internal void Server_ApplicationMessageReceived(object sender, MqttApplicationMessageReceivedEventArgs e)
{
InboundCounter.Increment();
IncomingMessages.Add(e);
if (string.IsNullOrEmpty(e.ClientId))
{
_logger.LogInformation($"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" && Devices.ContainsKey(e.ClientId))
{
Device device = JudgeOrCreateNewDevice(tpary, Devices[e.ClientId]);
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}");
}
}
if (tpary[2] == "telemetry")
{
Task.Run(async() =>
{
try
{
var result = await _dbContext.SaveAsync <TelemetryLatest, TelemetryData>(keyValues, device, DataSide.ClientSide);
}
catch (Exception ex)
{
_logger.LogError(ex, $"Can't upload telemetry to device {device.Name}({device.Id}).the payload is {e.ApplicationMessage.ConvertPayloadToString()}");
}
});
}
else if (tpary[2] == "attributes")
{
if (tpary.Length > 3 && tpary[3] == "request")
{
Task.Run(async() =>
{
await RequestAttributes(tpary, e.ApplicationMessage.ConvertPayloadToDictionary(), device);
});
}
else
{
Task.Run(async() =>
{
try
{
var result = await _dbContext.SaveAsync <AttributeLatest, AttributeData>(keyValues, device, DataSide.ClientSide);
}
catch (Exception ex)
{
_logger.LogError(ex, $"Can't upload attributes to device {device.Name}({device.Id}).the payload is \"{e.ApplicationMessage.ConvertPayloadToString()}\"");
}
});
}
}
}
}
}
}
public void Add(ClientMessage msg)
{
incomingMessages.Add(msg);
}