public async Task <CoapMessage> DeleteAsync(CoapMessage message)
{
Exception error = null;
CoapUri uri = new CoapUri(message.ResourceUri.ToString());
try
{
await adapter.UnsubscribeAsync(uri.Resource);
coapObserved.Remove(uri.Resource);
}
catch (Exception ex)
{
Trace.TraceError("{0} - CoAP Delete fault '{1}' ", DateTime.UtcNow.ToString("yyyy-MM-ddTHH-MM-ss.fffff"), ex.Message);
error = ex;
}
if (error == null)
{
ResponseMessageType rmt = message.MessageType == CoapMessageType.Confirmable ? ResponseMessageType.Acknowledgement : ResponseMessageType.NonConfirmable;
return(new CoapResponse(message.MessageId, rmt, ResponseCodeType.Deleted, message.Token));
}
else
{
return(new CoapResponse(message.MessageId, ResponseMessageType.Reset, ResponseCodeType.EmptyMessage));
}
}
public async Task <CoapMessage> DeleteAsync(CoapMessage message)
{
Exception error = null;
CoapUri uri = new CoapUri(message.ResourceUri.ToString());
try
{
await adapter.UnsubscribeAsync(uri.Resource);
await logger?.LogDebugAsync($"CoAP delete unsubscribe '{uri.Resource}' for {session.Identity}.");
coapObserved.Remove(uri.Resource);
await logger?.LogDebugAsync($"CoAP delete removed '{uri.Resource}' for {session.Identity}.");
}
catch (Exception ex)
{
await logger?.LogErrorAsync(ex, $"CoAP delete fault during unsubscribe process for {session.Identity}");
error = ex;
}
if (error == null)
{
ResponseMessageType rmt = message.MessageType == CoapMessageType.Confirmable ? ResponseMessageType.Acknowledgement : ResponseMessageType.NonConfirmable;
await logger?.LogDebugAsync($"CoAP delete returning response for '{uri.Resource}' with {rmt.ToString()} for {session.Identity}.");
return(new CoapResponse(message.MessageId, rmt, ResponseCodeType.Deleted, message.Token));
}
else
{
await logger?.LogDebugAsync($"CoAP delete returning response for '{uri.Resource}' with {ResponseCodeType.EmptyMessage.ToString()} for {session.Identity}.");
return(new CoapResponse(message.MessageId, ResponseMessageType.Reset, ResponseCodeType.EmptyMessage));
}
}
private void Session_OnUnsubscribe(object sender, MqttMessageEventArgs args)
{
try
{
UnsubscribeMessage msg = (UnsubscribeMessage)args.Message;
foreach (var item in msg.Topics)
{
MqttUri uri = new MqttUri(item.ToLowerInvariant());
if (adapter.CanSubscribeAsync(uri.Resource, Channel.IsEncrypted).GetAwaiter().GetResult())
{
adapter.UnsubscribeAsync(uri.Resource).GetAwaiter();
}
}
}
catch (Exception ex)
{
logger.LogError(ex, $"MQTT adapter Session_OnUnsubscribe error on channel '{Channel.Id}'.");
OnError?.Invoke(this, new ProtocolAdapterErrorEventArgs(Channel.Id, ex));
}
}
private void Session_OnUnsubscribe(object sender, MqttMessageEventArgs args)
{
try
{
UnsubscribeMessage msg = (UnsubscribeMessage)args.Message;
foreach (var item in msg.Topics)
{
MqttUri uri = new MqttUri(item.ToLowerInvariant());
if (EventValidator.Validate(false, uri.Resource, Channel, graphManager, context).Validated)
{
adapter.UnsubscribeAsync(uri.Resource).GetAwaiter();
logger?.LogInformationAsync($"MQTT adapter unsubscribed {uri.ToString()}");
}
}
}
catch (Exception ex)
{
logger?.LogErrorAsync(ex, $"MQTT adapter Session_OnUnsubscribe error on channel '{Channel.Id}'.").GetAwaiter();
OnError?.Invoke(this, new ProtocolAdapterErrorEventArgs(Channel.Id, ex));
}
}
