async Task SendRetainedMessagesAsync(ClientSubscription subscription, IMqttChannel <IPacket> channel)
{
var retainedMessages = retainedRepository.GetAll()
.Where(r => topicEvaluator.Matches(r.Topic, subscription.TopicFilter));
if (retainedMessages != null)
{
foreach (var retainedMessage in retainedMessages)
{
ushort?packetId = subscription.MaximumQualityOfService == MqttQualityOfService.AtMostOnce ?
null : (ushort?)packetIdProvider.GetPacketId();
var publish = new Publish(retainedMessage.Topic, subscription.MaximumQualityOfService,
retain: true, duplicated: false, packetId: packetId)
{
Payload = retainedMessage.Payload
};
await senderFlow.SendPublishAsync(subscription.ClientId, publish, channel)
.ConfigureAwait(continueOnCapturedContext: false);
}
}
}
async Task SendRetainedMessagesAsync(ClientSubscription subscription, IMqttChannel <IPacket> channel)
{
IEnumerable <RetainedMessage> retainedMessages = _retainedRepository
.ReadAll()
.Where(r => _topicEvaluator.Matches(topicName: r.Id, topicFilter: subscription.TopicFilter));
if (retainedMessages != null)
{
foreach (RetainedMessage retainedMessage in retainedMessages)
{
ushort?packetId = subscription.MaximumQualityOfService == MqttQualityOfService.AtMostOnce ?
null : (ushort?)_packetIdProvider.GetPacketId();
Publish publish = new Publish(topic: retainedMessage.Id,
qualityOfService: subscription.MaximumQualityOfService,
retain: true, duplicated: false, packetId: packetId)
{
Payload = retainedMessage.Payload
};
await _senderFlow.SendPublishAsync(subscription.ClientId, publish, channel);
}
}
}
