/// <summary>
/// topic : /xxx/yyy
/// </summary>
/// <param name="topic"></param>
/// <param name="payload"></param>
/// <param name="token"></param>
/// <returns></returns>
public Task Pub(string topic, string payload, CancellationToken token)
{
return(_client.PublishAsync(CreateMsg(topic.ToLower(), payload), token));
}
/// <summary>
/// Publish the stream of <see cref="ManagedMqttApplicationMessage"/>s to the server and give a response of the publish result.
/// </summary>
/// <param name="observable">The source observable.</param>
/// <param name="rxMqttClinet">The client to publish the messages with.</param>
/// <returns>A observer for the publish results.</returns>
public static IObservable <RxMqttClientPublishResult> PublishOn(this IObservable <ManagedMqttApplicationMessage> observable, IRxMqttClient rxMqttClinet)
{
if (observable is null)
{
throw new ArgumentNullException(nameof(observable));
}
if (rxMqttClinet is null)
{
throw new ArgumentNullException(nameof(rxMqttClinet));
}
return(observable
.Select(managedMqttApplicationMessage =>
{
return Observable.Create <RxMqttClientPublishResult>(async observer =>
{
if (!rxMqttClinet.IsConnected)
{
observer.OnNext(new RxMqttClientPublishResult {
ReasonCode = RxMqttClientPublishReasonCode.ClientNotConnected, MqttApplicationMessage = managedMqttApplicationMessage
});
observer.OnCompleted();
return Disposable.Empty;
}
else
{
var subscription = rxMqttClinet.ApplicationMessageProcessedEvent
.Where(@event => @event.ApplicationMessage.Id == managedMqttApplicationMessage.Id)
.Select(@event => @event.HasSucceeded
? new RxMqttClientPublishResult {
ReasonCode = RxMqttClientPublishReasonCode.HasSucceeded, MqttApplicationMessage = @event.ApplicationMessage
}
: new RxMqttClientPublishResult {
ReasonCode = RxMqttClientPublishReasonCode.HasFailed, MqttApplicationMessage = @event.ApplicationMessage, Exception = @event.Exception
})
.Merge(rxMqttClinet.ApplicationMessageSkippedEvent
.Where(@event => @event.ApplicationMessage.Id == managedMqttApplicationMessage.Id)
.Select(@event => new RxMqttClientPublishResult {
ReasonCode = RxMqttClientPublishReasonCode.HasSkipped, MqttApplicationMessage = @event.ApplicationMessage
}))
.Take(1)
.SubscribeSafe(observer);
try
{
await rxMqttClinet.PublishAsync(managedMqttApplicationMessage).ConfigureAwait(false);
}
catch (Exception exception)
{
observer.OnNext(new RxMqttClientPublishResult {
ReasonCode = RxMqttClientPublishReasonCode.HasFailed, MqttApplicationMessage = managedMqttApplicationMessage, Exception = exception
});
observer.OnCompleted();
}
return subscription;
}
});
})
.Merge());
}