void IAleTunnelObserver.OnAleFrameArrival(AleTunnel theConnection, AleFrame theFrame)
{
try
{
// 只处理ConnectionRequest帧。
if (theFrame.FrameType != AleFrameType.ConnectionRequest)
{
throw new Exception(string.Format("在临时AleTunnel上收到了非CR帧，关闭此连接！本地终结点={0}，远程终结点={1}。",
theConnection.LocalEndPoint, theConnection.RemoteEndPoint));
}
// 确认此连接是“AleServerTunnel对象”。
var tunnel = theConnection as AleServerTunnel;
if (tunnel == null)
{
throw new Exception(string.Format("在非AleServerTunnel上收到了CR帧！本地终结点={0}，远程终结点={1}。",
theConnection.LocalEndPoint, theConnection.RemoteEndPoint));
}
// 处理ALE帧。
var aleCrData = theFrame.UserData as AleConnectionRequest;
var key = this.BuildSaiConnectionID(aleCrData.ResponderID, aleCrData.InitiatorID);
SaiConnectionServer saiConnection;
lock (_saiConnectionsLock)
{
saiConnection = this.GetSaiConnection(key) as SaiConnectionServer;
if (saiConnection == null)
{
saiConnection = this.CreateSaiConnectionServer(aleCrData.InitiatorID);
this.AddSaiConnection(key, saiConnection);
saiConnection.Open();
}
}
// 交给SaiConnection处理。
saiConnection.HandleAleConnectionRequestFrame(tunnel, theFrame);
// 从临时链表中移除。
_serverTunnels.Remove(tunnel);
}
catch (System.Exception ex)
{
LogUtility.Error(string.Format("{0}", ex));
_serverTunnels.Remove(theConnection as AleServerTunnel);
theConnection.Close();
}
}
void IAleTunnelObserver.OnTcpDisconnected(AleTunnel theConnection, string reason)
{
try
{
// 进入此函数表示客户端连接后没有发送任何数据就关闭（可能是客户端主动关闭，也可能是在规定时间里没有发送CR帧而被服务器关闭）。
_serverTunnels.Remove(theConnection as AleServerTunnel);
theConnection.Close();
}
catch (System.Exception ex)
{
LogUtility.Error(ex.ToString());
}
}
