/// <inheritdoc cref="IMqttClient.UnsubscribeAsync" />
public Task <MqttClientUnsubscribeResult> UnsubscribeAsync(
MqttClientUnsubscribeOptions options,
CancellationToken cancellationToken)
{
Check.NotNull(options, nameof(options));
_broker.Unsubscribe(ClientId, options.TopicFilters);
var result = new MqttClientUnsubscribeResult();
options.TopicFilters.ForEach(filter => result.Items.Add(MapUnsubscribeResultItem(filter)));
return(Task.FromResult(result));
}
public MqttClientUnsubscribeResult CreateClientUnsubscribeResult(MqttUnsubscribePacket unsubscribePacket, MqttUnsubAckPacket unsubAckPacket)
{
if (unsubscribePacket == null)
{
throw new ArgumentNullException(nameof(unsubscribePacket));
}
if (unsubAckPacket == null)
{
throw new ArgumentNullException(nameof(unsubAckPacket));
}
var result = new MqttClientUnsubscribeResult();
result.Items.AddRange(unsubscribePacket.TopicFilters.Select((t, i) =>
new MqttClientUnsubscribeResultItem(t, MqttClientUnsubscribeResultCode.Success)));
return(result);
}
public MqttClientUnsubscribeResult CreateClientUnsubscribeResult(MqttUnsubscribePacket unsubscribePacket, MqttUnsubAckPacket unsubAckPacket)
{
if (unsubscribePacket == null)
{
throw new ArgumentNullException(nameof(unsubscribePacket));
}
if (unsubAckPacket == null)
{
throw new ArgumentNullException(nameof(unsubAckPacket));
}
if (unsubAckPacket.ReasonCodes.Count != unsubscribePacket.TopicFilters.Count)
{
throw new MqttProtocolViolationException("The return codes are not matching the topic filters [MQTT-3.9.3-1].");
}
var result = new MqttClientUnsubscribeResult();
result.Items.AddRange(unsubscribePacket.TopicFilters.Select((t, i) =>
new MqttClientUnsubscribeResultItem(t, (MqttClientUnsubscribeResultCode)unsubAckPacket.ReasonCodes[i])));
return(result);
}