private IExchangeClient InitClient(URL url)
{
// client type setting.
var str = url.GetParameter(Constants.ClientKey, url.GetParameter(Constants.ServerKey, Constants.DefaultRemotingClient));
var version = url.GetParameter(Constants.DubboVersionKey, "2.6.0");
var compatible = (version != null && version.StartsWith("1.0."));
url = url.AddParameter(Constants.CodecKey, DubboCodec.Name);
// enable heartbeat by default
url = url.AddParameterIfAbsent(Constants.HeartbeatKey, Constants.DefaultHeartbeat.ToString());
// BIO is not allowed since it has severe performance issue.
var transporter = ObjectFactory.GetInstance <ITransporter>(str);
if (transporter == null)
{
throw new Exception("Unsupported client type: " + str + "," +
" supported client type is " + ObjectFactory.GetTypeKeys <ITransporter>() + " ");
}
IExchangeClient client;
try
{
// connection should be lazy
if (url.GetParameter(Constants.LazyConnectKey, false))
{
client = new LazyConnectExchangeClient(url, RequestHandler());
}
else
{
client = Exchangers.ConnectAsync(url, RequestHandler()).Result;
}
}
catch (RemotingException e)
{
throw new Exception("Fail to create remoting client for service(" + url + "): " + e.Message, e);
}
return(client);
}
private LazyConnectExchangeClient ReplaceWithLazyClient()
{
URL lazyUrl = Url.AddParameter(Constants.LazyConnectInitialStateKey, false)
.AddParameter(Constants.ReconnectKey, false)
.AddParameter(Constants.SendReconnectKey, true)
.AddParameter("warning", true)
.AddParameter(LazyConnectExchangeClient.RequestWithWarningKey, true)
.AddParameter("_client_memo", "referencecounthandler.replacewithlazyclient");
var key = Url.GetAddress();
// in worst case there's only one ghost connection.
LazyConnectExchangeClient gclient = null;
if (_ghostClientMap.ContainsKey(key))
{
_ghostClientMap.TryGetValue(key, out gclient);
}
if (gclient == null || gclient.IsClosed)
{
gclient = new LazyConnectExchangeClient(lazyUrl, _client.GetExchangeHandler());
_ghostClientMap.TryAdd(key, gclient);
}
return(gclient);
}