public void AddNewMessage(Message message)
{
if (messages.Count >= maxMessaages)
messages.Remove(messages.First());
messages.Add(message);
if (OnNewMessageLogged != null)
OnNewMessageLogged(message);
}
public void AddMessage(Message message)
{
using (var db = new SqlConnection(connectionString))
{
db.Open();
var sqlQuery = "INSERT INTO Messages (nodeId, sensorId, messageType, ack, subType ,payload, isValid, incoming, dateTime) "
+
"VALUES(@nodeId, @sensorId, @messageType, @ack, @subType, @payload, @isValid, @incoming, @dateTime); "
+ "SELECT CAST(SCOPE_IDENTITY() as int)";
db.Query(sqlQuery, message);
}
}
private void WriteNewMessages()
{
using (var db = new SqlConnection(connectionString))
{
db.Open();
//to prevent changing of collection while writing to db is not yet finished
Message[] messages = new Message[newMessages.Count];
newMessages.CopyTo(messages);
newMessages.Clear();
var sqlQuery = "INSERT INTO Messages (nodeId, sensorId, messageType, ack, subType ,payload, isValid, incoming, dateTime) "
+
"VALUES(@nodeId, @sensorId, @messageType, @ack, @subType, @payload, @isValid, @incoming, @dateTime); "
+ "SELECT CAST(SCOPE_IDENTITY() as int)";
db.Execute(sqlQuery, messages);
}
}
private void OnNewMessage(Message message)
{
if (!storeTxRxMessages) return;
if (writeInterval == 0)
AddMessage(message);
else
newMessages.Add(message);
}
public void SendReboot(int nodeId)
{
Message message = new Message();
message.ack = false;
message.messageType = MessageType.C_INTERNAL;
message.nodeId = nodeId;
message.payload = "0";
message.sensorId = 0;
message.subType = (int)InternalDataType.I_REBOOT;
SendMessage(message);
}
private void SendMetricResponse(int nodeId)
{
Message mess = new Message();
mess.nodeId = nodeId;
mess.sensorId = 255;
mess.messageType = MessageType.C_INTERNAL;
mess.ack = false;
mess.subType = (int)InternalDataType.I_CONFIG;
mess.payload = "M";
SendMessage(mess);
}
public void SendNewIdResponse()
{
int freeId = GetFreeNodeId();
Message mess = new Message();
mess.nodeId = 255;
mess.sensorId = 255;
mess.messageType = MessageType.C_INTERNAL;
mess.ack = false;
mess.subType = (int)InternalDataType.I_ID_RESPONSE;
mess.payload = freeId.ToString();
SendMessage(mess);
}
private void SendSensorState(Sensor sensor)
{
Message message = new Message();
message.ack = false;
message.messageType = MessageType.C_SET;
message.nodeId = sensor.nodeId;
message.payload = sensor.state;
message.sensorId = sensor.sensorId;
message.subType = (int)sensor.dataType;
SendMessage(message);
}
public Message ParseMessageFromString(string message)
{
var mes = new Message();
try
{
string[] arguments = message.Split(new char[] { ';' }, 6);
mes.nodeId = Int32.Parse(arguments[0]);
mes.sensorId = Int32.Parse(arguments[1]);
mes.messageType = (MessageType)Int32.Parse(arguments[2]);
mes.ack = arguments[3] == "1";
mes.subType = Int32.Parse(arguments[4]);
mes.payload = arguments[5];
}
catch
{
mes = new Message();
mes.isValid = false;
mes.payload = message;
}
return mes;
}
public void UpdateSensorFromMessage(Message mes)
{
//if internal node message
if (mes.sensorId == 255)
return;
if (mes.messageType != MessageType.C_PRESENTATION
&& mes.messageType != MessageType.C_SET)
return;
Node node = GetNode(mes.nodeId);
Sensor sensor = node.GetSensor(mes.sensorId);
bool isNewSensor = false;
if (sensor == null)
{
sensor = node.AddSensor(mes.sensorId);
isNewSensor = true;
}
if (mes.messageType == MessageType.C_SET)
{
sensor.dataType= (SensorDataType)mes.subType;
sensor.state = mes.payload;
sensor.RemapSensorData();
}
else if (mes.messageType == MessageType.C_PRESENTATION)
{
if (mes.subType < 0 || mes.subType > (int)Enum.GetValues(typeof(SensorType)).Cast<SensorType>().Max())
{
DebugGatewayState("Exception occurs when the serial port does not have time to write the data");
throw new ArgumentOutOfRangeException(
"Exception occurs when the serial port does not have time to write the data");
}
sensor.SetSensorType((SensorType)mes.subType);
if (!String.IsNullOrEmpty(mes.payload))
sensor.description = mes.payload;
}
if (isNewSensor)
{
if (OnNewSensorEvent != null)
OnNewSensorEvent(sensor);
DebugGatewayState($"New sensor (node id {sensor.nodeId}, sensor id: {sensor.sensorId}) registered");
}
else
{
if (OnSensorUpdatedEvent != null)
OnSensorUpdatedEvent(sensor);
}
}
private void UpdateNodeFromMessage(Message mes)
{
Node node = GetNode(mes.nodeId);
if (node == null)
{
node = new Node(mes.nodeId);
nodes.Add(node);
if (OnNewNodeEvent != null)
OnNewNodeEvent(node);
DebugGatewayState($"New node (id: {node.nodeId}) registered");
}
node.UpdateLastSeenNow();
if (OnNodeLastSeenUpdatedEvent != null)
OnNodeLastSeenUpdatedEvent(node);
if (mes.sensorId == 255)
{
if (mes.messageType == MessageType.C_PRESENTATION)
{
if (mes.subType == (int)SensorType.S_ARDUINO_NODE)
{
node.isRepeatingNode = false;
}
else if (mes.subType == (int)SensorType.S_ARDUINO_REPEATER_NODE)
{
node.isRepeatingNode = true;
}
if (OnNodeUpdatedEvent != null)
OnNodeUpdatedEvent(node);
DebugGatewayState($"Node {node.nodeId} updated");
}
else if (mes.messageType == MessageType.C_INTERNAL)
{
if (mes.subType == (int)InternalDataType.I_SKETCH_NAME)
{
node.name = mes.payload;
if (OnNodeUpdatedEvent != null)
OnNodeUpdatedEvent(node);
DebugGatewayState($"Node {node.nodeId} updated");
}
else if (mes.subType == (int)InternalDataType.I_SKETCH_VERSION)
{
node.version = mes.payload;
if (OnNodeUpdatedEvent != null)
OnNodeUpdatedEvent(node);
DebugGatewayState($"Node {node.nodeId} updated");
}
else if (mes.subType == (int)InternalDataType.I_BATTERY_LEVEL)
{
node.batteryLevel = Int32.Parse(mes.payload);
if (OnNodeBatteryUpdatedEvent != null)
OnNodeBatteryUpdatedEvent(node);
return;
}
}
}
}
private void ProceedRequestMessage(Message mes)
{
if (mes.messageType != MessageType.C_REQ)
return;
Node node = GetNode(mes.nodeId);
if (node == null) return;
Sensor sensor = node.GetSensor(mes.sensorId);
if (sensor == null) return;
sensor.dataType = (SensorDataType)mes.subType;
sensor.state = mes.payload;
SendSensorState(sensor);
}
public void RecieveMessage(Message message)
{
message.incoming = true;
if (storeMessages)
messagesLog.AddNewMessage(message);
DebugTxRx($"RX: { message.ToString()}");
if (OnMessageRecievedEvent != null)
OnMessageRecievedEvent(message);
if (message.isValid)
{
//Gateway ready
if (message.messageType == MessageType.C_INTERNAL
&& message.subType == (int)InternalDataType.I_GATEWAY_READY)
return;
//Gateway log message
if (message.messageType == MessageType.C_INTERNAL
&& message.subType == (int)InternalDataType.I_LOG_MESSAGE)
return;
//New ID request
if (message.nodeId == 255)
{
if (message.messageType == MessageType.C_INTERNAL
&& message.subType == (int)InternalDataType.I_ID_REQUEST)
if (enableAutoAssignId)
SendNewIdResponse();
return;
}
//Metric system request
if (message.messageType == MessageType.C_INTERNAL
&& message.subType == (int)InternalDataType.I_CONFIG)
SendMetricResponse(message.nodeId);
//Sensor request
if (message.messageType == MessageType.C_REQ)
ProceedRequestMessage(message);
UpdateNodeFromMessage(message);
UpdateSensorFromMessage(message);
}
}
private void SendMessage(Message message)
{
message.incoming = false;
if (OnMessageSendEvent != null)
OnMessageSendEvent(message);
UpdateSensorFromMessage(message);
//todo if (message.messageType == MessageType.C_SET)
//message = DeRemapMessage(message);
DebugTxRx($"TX: {message.ToString()}");
string ack = (message.ack) ? "1" : "0";
string mes = $"{message.nodeId};{message.sensorId};{(int)message.messageType};{ack};{message.subType};{message.payload}\n";
SendToSerial(mes);
if (storeMessages)
messagesLog.AddNewMessage(message);
}
