public static ITransport GetTransport(TransportTypeEnum type, string host, int e, int timeout)
{
string key = "{0}://{1}:{2}".F(type.ToString(), host, e);
ITransport trans = null;
lock (TransportsCache)
{
if (TransportsCache.ContainsKey(key))
{
trans = TransportsCache.GetItem(key, null);
if (trans == null)
{
TransportsCache.Remove(key);
}
else
{
if (type == TransportTypeEnum.Rs232)
{
var sp = trans as SerialTransport;
if (sp == null || sp.Disposed)
{
TransportsCache.Remove(key);
trans = CreateRS232Transport(host, e, timeout);
TransportsCache.Add(key, trans);
}
}
else if (type == TransportTypeEnum.Tcp || type == TransportTypeEnum.Udp)
{
var session = trans as SessionBase;
if (session == null || session.Disposed || !session.Active)
{
TransportsCache.Remove(key);
trans = CreateNetTransport(type, host, e, timeout);
TransportsCache.Add(key, trans);
}
}
}
}
else
{
if (type == TransportTypeEnum.Rs232)
{
trans = CreateRS232Transport(host, e, timeout);
TransportsCache.Add(key, trans);
}
else if (type == TransportTypeEnum.Tcp || type == TransportTypeEnum.Udp)
{
trans = CreateNetTransport(type, host, e, timeout);
TransportsCache.Add(key, trans);
}
}
}
return(trans);
}
private static ITransport CreateNetTransport(TransportTypeEnum type, string host, int e, int timeout)
{
IPAddress ip;
lock (_hostCache)
{
if (_hostCache.ContainsKey(host))
{
ip = _hostCache[host];
}
else
{
try
{
ip = NetHelper.ParseAddress(host);
_hostCache.TryAdd(host, ip);
}
catch (Exception ex)
{
XTrace.WriteException(ex);
return(null);
}
}
}
var session = new NetUri(string.Format("{0}://{1}:{2}", type.ToString(), ip, e)).CreateRemote();
session.Log = XTrace.Log;
session.Error += Session_Error;
//if (session.GetType() == typeof(TcpSession))
//{
// var se = session as SessionBase;
// se.Timeout = timeout;
//}
return(session as ITransport);
}