public MqttTopic(MqttTopicNode Node, string FullTopic, string LocalTopic, MqttTopic Parent, MqttBroker Broker)
{
this.node = Node;
this.fullTopic = FullTopic;
this.localTopic = LocalTopic;
this.parent = Parent;
this.broker = Broker;
}
public static MqttBroker GetBroker(MqttBrokerNode Node, string Key, string Host, int Port, bool Tls, string UserName, string Password,
string WillTopic, string WillData, bool WillRetain, MqttQualityOfService WillQoS)
{
MqttBroker Broker;
lock (brokers)
{
if (!brokers.TryGetValue(Key, out Broker))
{
Broker = null;
}
}
if (Broker != null)
{
Broker.SetWill(WillTopic, WillData, WillRetain, WillQoS);
return(Broker);
}
else
{
Broker = new MqttBroker(Node, Host, Port, Tls, UserName, Password, WillTopic, WillData, WillRetain, WillQoS);
lock (brokers)
{
if (brokers.ContainsKey(Key))
{
Broker.Dispose();
return(brokers[Key]);
}
else
{
brokers[Key] = Broker;
return(Broker);
}
}
}
}
internal async Task <MqttTopic> GetTopic(string[] Parts, int Index, bool CreateNew, MqttBroker Broker)
{
MqttTopic Topic;
lock (this.topics)
{
if (!this.topics.TryGetValue(Parts[Index], out Topic))
{
Topic = null;
}
}
if (Topic == null)
{
if (System.Guid.TryParse(Parts[Index].Replace('_', '-'), out Guid _))
{
return(null);
}
if (this.node.HasChildren)
{
foreach (INode Child in await this.node.ChildNodes)
{
if (Child is MqttTopicNode Topic2 && Topic2.LocalTopic == Parts[Index])
{
Topic = new MqttTopic(Topic2, Topic2.FullTopic, Parts[Index], null, Broker);
break;
}
}
}
MqttTopicNode Node = null;
if (Topic == null)
{
if (!CreateNew)
{
return(null);
}
StringBuilder sb = new StringBuilder();
int i;
for (i = 0; i < Index; i++)
{
sb.Append(Parts[i]);
sb.Append('/');
}
sb.Append(Parts[Index]);
string FullTopic = sb.ToString();
Node = new MqttTopicNode()
{
NodeId = await MeteringNode.GetUniqueNodeId(FullTopic),
LocalTopic = Parts[Index]
};
Topic = new MqttTopic(Node, FullTopic, Parts[Index], this, Broker);
}
lock (this.topics)
{
if (this.topics.ContainsKey(Parts[Index]))
{
Topic = this.topics[Parts[Index]];
}
else
{
this.topics[Parts[Index]] = Topic;
}
}
if (Node != null)
{
if (Node != Topic.Node)
{
await Node.DestroyAsync();
}
else
{
await this.node.AddAsync(Node);
}
}
}
Index++;
if (Parts.Length == Index)
{
return(Topic);
}
else
{
return(await Topic.GetTopic(Parts, Index, CreateNew, Broker));
}
}
