public virtual void AddEdgeListener(EdgeListener el)
{
/* The EdgeFactory needs to be made aware of all EdgeListeners */
_edge_factory.AddListener(el);
_edgelistener_list.Add(el);
/**
* It is ESSENTIAL that the EdgeEvent of EdgeListener objects
* be connected to the EdgeHandler method of ConnectionPacketHandler
*/
el.EdgeEvent += this.EdgeHandler;
el.EdgeCloseRequestEvent += delegate(object elsender, EventArgs args) {
EdgeCloseRequestArgs ecra = (EdgeCloseRequestArgs)args;
Close(ecra.Edge);
};
}
///<summary>This handles the RequestClose of the underlying edge.</summary>
///<remarks>
/// The convoluted model for handling edge closes is this...
/// I) UEL calls RequestClose
/// 1) Triggers HandleEdgeCloseRequestEvent
/// 2) If there is a wrapper edge, call RequestClose on it
/// 3) If there isn't a wrapper edge, we are forced to simply close the edge and send a failed ecw
/// II) A wrapper edge is responsible for calling edge close on the wrapped edge on edge close
/// III) if an wrapped edge calls close, we are notified via an event, that will send a failed ecw or close the wrapper edge
/// </remarks>
protected void HandleEdgeCloseRequestEvent(object el, EventArgs ea)
{
EdgeCloseRequestArgs ecra = ea as EdgeCloseRequestArgs;
if (ecra == null)
{
throw new Exception("Not an EdgeCloseRequestArgs!");
}
EdgeCreationWrapper ecw = null;
Edge e = null;
lock (_sync) {
if (_edge_to_ecw.ContainsKey(ecra.Edge))
{
ecw = _edge_to_ecw[ecra.Edge];
_edge_to_ecw.Remove(ecra.Edge);
}
else if (_edge_to_wrapper_edge.ContainsKey(ecra.Edge))
{
e = _edge_to_wrapper_edge[ecra.Edge];
_edge_to_wrapper_edge.Remove(ecra.Edge);
}
}
if (e != null)
{
RequestClose(e);
}
else
{
ecra.Edge.Close();
if (ecw != null)
{
ecw.CreationCallback(false, null, new EdgeException("Requested close on an unwrapped edge."));
}
}
}