public void subscribe(SubscribeMessage msg)
{
log(string.Format("[Subscribe] Received event '{0}'", msg));
//if (isDuplicate(msg)) return;
// should we have FIFO order here?
lock (_topicSubscribers)
{
if (!_topicSubscribers.ContainsKey(msg.topic))
{
_topicSubscribers.Add(msg.topic, new List<string>());
}
_topicSubscribers[msg.topic].Add(msg.uri);
}
PropagatedSubcribeMessage pmsg = new PropagatedSubcribeMessage(msg, _site);
// propagate subscribe only to parent, taking advantage of tree strucure
lock (_parentSiteLock)
{
if (_parentSite != null)
{
foreach (Broker b in _parentSite.brokers)
{
//TODO assyncronous
log(string.Format("[subscribe] senting '{0}' to parent site '{1}'", pmsg, _parentSite.name));
b.propagateSubscribe(pmsg);
}
}
}
}
public void propagateSubscribe(PropagatedSubcribeMessage msg)
{
log(string.Format("[propagateSubscribe] Received event '{0}'", msg));
// TODO deal with duplicate messages. using which seqnum?...
lock (_topicSites)
{
if (!_topicSites.ContainsKey(msg.topic))
{
_topicSites.Add(msg.topic, new List<string>());
}
_topicSites[msg.topic].Add(msg.interested_site);
}
msg.interested_site = _site;
lock (_parentSiteLock)
{
if (_parentSite != null)
{
foreach (var b in _parentSite.brokers)
{
log(string.Format("[propagateSubscribe] senting '{0}' to parent site '{1}'", msg, _parentSite.name));
//TODO assync
b.propagateSubscribe(msg);
}
}
}
}