public virtual bool AddEvent(string key, Topic topic)
{
lock (EventKeys)
{
return EventKeys.Add(key);
}
}
public override bool AddEvent(string eventKey, Topic topic)
{
lock (_lockObj)
{
// O(n), but small n and it's not common
var index = _cursors.FindIndex(c => c.Key == eventKey);
if (index == -1)
{
_cursors.Add(new Cursor
{
Key = eventKey,
Id = GetMessageId(topic)
});
_cursorTopics.Add(topic);
return true;
}
return false;
}
}
public override void SetEventTopic(string key, Topic topic)
{
// This isn't relevant to us as EventKeys is up to date
}
public override bool AddEvent(string key, Topic topic)
{
// This isn't relevant to us as EventKeys is up to date
return false;
}
public void SetCursorTopic(string key, Topic topic)
{
lock (_lockObj)
{
// O(n), but small n and it's not common
var index = _cursors.FindIndex(c => c.Key == key);
if (index != -1)
{
_cursors[index].Topic = topic;
}
}
}
public void AddOrUpdateCursor(string key, ulong id, Topic topic)
{
lock (_lockObj)
{
// O(n), but small n and it's not common
var index = _cursors.FindIndex(c => c.Key == key);
if (index == -1)
{
_cursors.Add(new Cursor
{
Key = key,
Id = id,
Topic = topic
});
}
}
}
private ulong GetMessageId(Topic topic)
{
if (topic == null)
{
return 0;
}
return topic.Store.GetMessageCount();
}
public override void SetEventTopic(string eventKey, Topic topic)
{
lock (_lockObj)
{
// O(n), but small n and it's not common
var index = _cursors.FindIndex(c => c.Key == eventKey);
if (index != -1)
{
_cursorTopics[index] = topic;
}
}
}
public abstract bool AddEvent(string key, Topic topic);
public abstract void SetEventTopic(string key, Topic topic);
private void ScheduleTopic(Topic topic)
{
try
{
topic.SubscriptionLock.EnterReadLock();
for (int i = 0; i < topic.Subscriptions.Count; i++)
{
ISubscription subscription = topic.Subscriptions[i];
_broker.Schedule(subscription);
}
}
finally
{
topic.SubscriptionLock.ExitReadLock();
}
}
public virtual void SetEventTopic(string key, Topic topic)
{
lock (EventKeys)
{
EventKeys.Add(key);
}
}
public virtual bool AddEvent(string key, Topic topic)
{
return false;
}
public virtual void SetEventTopic(string key, Topic topic)
{
}