public async Task <bool> SendEventAsync(LoRaDeviceTelemetry telemetry, Dictionary <string, string> properties)
{
if (telemetry != null)
{
try
{
var messageJson = JsonConvert.SerializeObject(telemetry, Formatting.None);
using var message = new Message(Encoding.UTF8.GetBytes(messageJson));
this.logger.LogDebug($"sending message {messageJson} to hub");
message.ContentType = System.Net.Mime.MediaTypeNames.Application.Json;
message.ContentEncoding = Encoding.UTF8.BodyName;
if (properties != null)
{
foreach (var prop in properties)
{
message.Properties.Add(prop);
}
}
await this.deviceClient.SendEventAsync(message);
return(true);
}
catch (OperationCanceledException ex) when(ExceptionFilterUtility.True(() => this.logger.LogError($"could not send message to IoTHub/Edge with error: {ex.Message}")))
{
// continue
}
}
return(false);
}
// Sends device telemetry data to IoT Hub
private async Task <bool> SendDeviceEventAsync(LoRaDevice loRaDevice, Rxpk rxpk, object decodedValue, LoRaPayloadData loRaPayloadData, LoRaOperationTimeWatcher timeWatcher)
{
var deviceTelemetry = new LoRaDeviceTelemetry(rxpk, loRaPayloadData, decodedValue)
{
DeviceEUI = loRaDevice.DevEUI,
GatewayID = this.configuration.GatewayID,
Edgets = (long)(timeWatcher.Start - DateTime.UnixEpoch).TotalMilliseconds
};
Dictionary <string, string> eventProperties = null;
if (loRaPayloadData.IsUpwardAck())
{
eventProperties = new Dictionary <string, string>();
Logger.Log(loRaDevice.DevEUI, $"Message ack received for C2D message id {loRaDevice.LastConfirmedC2DMessageID}", LogLevel.Information);
eventProperties.Add(C2D_MSG_PROPERTY_VALUE_NAME, loRaDevice.LastConfirmedC2DMessageID ?? C2D_MSG_ID_PLACEHOLDER);
loRaDevice.LastConfirmedC2DMessageID = null;
}
var macCommand = loRaPayloadData.GetMacCommands();
if (macCommand.MacCommand.Count > 0)
{
eventProperties = eventProperties ?? new Dictionary <string, string>();
for (int i = 0; i < macCommand.MacCommand.Count; i++)
{
eventProperties[macCommand.MacCommand[i].Cid.ToString()] = JsonConvert.SerializeObject(macCommand.MacCommand[i], Formatting.None);
// in case it is a link check mac, we need to send it downstream.
if (macCommand.MacCommand[i].Cid == CidEnum.LinkCheckCmd)
{
// linkCheckCmdResponse = new LinkCheckCmd(rxPk.GetModulationMargin(), 1).ToBytes();
}
}
}
if (await loRaDevice.SendEventAsync(deviceTelemetry, eventProperties))
{
var payloadAsRaw = deviceTelemetry.Data as string;
if (payloadAsRaw == null && deviceTelemetry.Data != null)
{
payloadAsRaw = JsonConvert.SerializeObject(deviceTelemetry.Data, Formatting.None);
}
Logger.Log(loRaDevice.DevEUI, $"message '{payloadAsRaw}' sent to hub", LogLevel.Information);
return(true);
}
return(false);
}
public async Task <bool> SendEventAsync(LoRaDeviceTelemetry telemetry, Dictionary <string, string> properties)
{
if (telemetry != null)
{
try
{
this.deviceClient.OperationTimeoutInMilliseconds = 120000;
// Enable retry for this send message, off by default
this.SetRetry(true);
var messageJson = JsonConvert.SerializeObject(telemetry, Formatting.None);
var message = new Message(Encoding.UTF8.GetBytes(messageJson));
Logger.Log(this.devEUI, $"sending message {messageJson} to hub", LogLevel.Debug);
message.ContentType = System.Net.Mime.MediaTypeNames.Application.Json;
message.ContentEncoding = Encoding.UTF8.BodyName;
if (properties != null)
{
foreach (var prop in properties)
{
message.Properties.Add(prop);
}
}
await this.deviceClient.SendEventAsync(message);
Logger.Log(this.devEUI, $"sent message {messageJson} to hub", LogLevel.Debug);
return(true);
}
catch (Exception ex)
{
Logger.Log(this.devEUI, $"could not send message to IoTHub/Edge with error: {ex.Message}", LogLevel.Error);
}
finally
{
// disable retry, this allows the server to close the connection if another gateway tries to open the connection for the same device
this.SetRetry(false);
}
}
return(false);
}
private async Task <bool> SendDeviceEventAsync(LoRaRequest request, LoRaDevice loRaDevice, LoRaOperationTimeWatcher timeWatcher, object decodedValue, DeduplicationResult deduplicationResult, byte[] decryptedPayloadData)
{
var loRaPayloadData = (LoRaPayloadData)request.Payload;
var deviceTelemetry = new LoRaDeviceTelemetry(request.Rxpk, loRaPayloadData, decodedValue, decryptedPayloadData)
{
DeviceEUI = loRaDevice.DevEUI,
GatewayID = this.configuration.GatewayID,
Edgets = (long)(timeWatcher.Start - DateTime.UnixEpoch).TotalMilliseconds
};
if (deduplicationResult != null && deduplicationResult.IsDuplicate)
{
deviceTelemetry.DupMsg = true;
}
Dictionary <string, string> eventProperties = null;
if (loRaPayloadData.IsUpwardAck())
{
eventProperties = new Dictionary <string, string>();
Logger.Log(loRaDevice.DevEUI, $"message ack received for cloud to device message id {loRaDevice.LastConfirmedC2DMessageID}", LogLevel.Information);
eventProperties.Add(Constants.C2D_MSG_PROPERTY_VALUE_NAME, loRaDevice.LastConfirmedC2DMessageID ?? Constants.C2D_MSG_ID_PLACEHOLDER);
loRaDevice.LastConfirmedC2DMessageID = null;
}
this.ProcessAndSendMacCommands(loRaPayloadData, ref eventProperties);
if (await loRaDevice.SendEventAsync(deviceTelemetry, eventProperties))
{
string payloadAsRaw = null;
if (deviceTelemetry.Data != null)
{
payloadAsRaw = JsonConvert.SerializeObject(deviceTelemetry.Data, Formatting.None);
}
Logger.Log(loRaDevice.DevEUI, $"message '{payloadAsRaw}' sent to hub", LogLevel.Information);
return(true);
}
return(false);
}
