public virtual RequestHandle createConnection(Protocol protocol, LightstreamerRequest request, com.lightstreamer.client.transport.providers.HttpProvider_HttpRequestListener httpListener, IDictionary <string, string> extraHeaders, Proxy proxy, long tcpConnectTimeout, long tcpReadTimeout)
{
string address = request.TargetServer + "lightstreamer/" + request.RequestName + ".txt" + "?LS_protocol=" + Constants.TLCP_VERSION;
Uri uri;
try
{
uri = new Uri(address);
}
catch (Exception e)
{
log.Fatal("Unexpectedly invalid URI: " + address, e);
throw new System.ArgumentException(e.Message);
}
bool secure = isSSL(address);
int port = uri.Port == -1 ? (secure ? 443 : 80) : uri.Port;
IFullHttpRequest httpRequest = new DefaultFullHttpRequest(HttpVersion.Http11, HttpMethod.Post, uri.PathAndQuery);
httpRequest.Headers.Set(HttpHeaderNames.Host, uri.Host);
string cookies = CookieHelper.getCookieHeader(uri);
log.Info("Requested cookies for uri " + uri + ": " + cookies);
if (!string.ReferenceEquals(cookies, null) && cookies.Length > 0)
{
httpRequest.Headers.Set(HttpHeaderNames.Cookie, cookies);
}
httpRequest.Headers.Set(HttpHeaderNames.UserAgent, ua);
httpRequest.Headers.Set(HttpHeaderNames.ContentType, "text/plain; charset=UTF-8");
if (extraHeaders != null)
{
foreach (KeyValuePair <string, string> header in extraHeaders.SetOfKeyValuePairs())
{
httpRequest.Headers.Set(new AsciiString(header.Key), header.Value);
}
}
IByteBuffer bbuf = Unpooled.CopiedBuffer(request.getTransportAwareQueryString(null, true) + "\r\n", Encoding.UTF8);
httpRequest.Headers.Set(HttpHeaderNames.ContentLength, bbuf.ReadableBytes);
httpRequest.Content.Clear().WriteBytes(bbuf);
string host4Netty = System.Net.Dns.GetHostAddresses(uri.Host)[0].ToString();
log.Debug("cs ---- address: " + address + ", " + host4Netty);
NettyFullAddress target = new NettyFullAddress(secure, host4Netty, port, uri.Host, proxy);
NettyInterruptionHandler interruptionHandler = new NettyInterruptionHandler();
bindAsync(uri, target, httpListener, httpRequest, interruptionHandler);
return(interruptionHandler);
}
private void switchInterruptionHandler(NettyInterruptionHandler newInterruptionHandler)
{
// Only one interruptionHandler should point to this socketHandler
// If the old interruptionHandler holds a link, it must be deleted before assigning the new interruptionHandler
if (this.interruptionHandler != null)
{
this.interruptionHandler.connectionRef.Value = null;
}
newInterruptionHandler.connectionRef.Value = this;
this.interruptionHandler = newInterruptionHandler;
}
private void Close()
{
if (logPool.IsDebugEnabled)
{
logPool.Debug("Socket Closed.");
}
if (this.socketListener != null)
{
this.socketListener.onClosed();
}
this.socketListener = null;
this.interruptionHandler = null;
this.set(CLOSED); //we'll be closed soon anyway
}
private async void errorAsync(IChannel ch)
{
if (logPool.IsDebugEnabled)
{
logPool.Debug("Socket error.");
}
if (this.socketListener != null)
{
this.socketListener.onBroken();
}
this.socketListener = null;
this.interruptionHandler = null;
this.set(CLOSED); //we'll be closed soon anyway
closeChannel(ch);
}
private void reuse(IChannelHandlerContext ctx)
{
if (!keepalive)
{
closeChannel(ctx.Channel);
}
if (this.socketListener != null)
{
log.Debug("Reuse failed for " + ctx.Channel.Id);
this.socketListener.onClosed();
}
this.socketListener = null;
this.interruptionHandler = null;
this.keepalive = false;
this.set(OPEN);
}
/// <summary>
/// Binds the request listener with the socket so that the opening/reading/closing events of the socket are notified to the listener.
/// Returns false if the socket can't be bound.
/// </summary>
public virtual bool switchListener(Uri uri, NettyRequestListener socketListener, NettyInterruptionHandler interruptionHandler)
{
lock (this)
{
if (this.@is(OPEN))
{
socketListener.onOpen();
}
else if (this.@is(OCCUPIED) || this.@is(CLOSED))
{
//should never happen! what do we do? XXX
return(false);
} //else if is init we'll get the onOpen later
this.uri = uri;
this.socketListener = socketListener;
switchInterruptionHandler(interruptionHandler);
this.lineAssembler = new LineAssembler(socketListener);
return(true);
}
}
private async void bindAsync(Uri uri, NettyFullAddress target, com.lightstreamer.client.transport.providers.HttpProvider_HttpRequestListener httpListener, IFullHttpRequest httpRequest, NettyInterruptionHandler interruptionHandler)
{
if (log.IsDebugEnabled)
{
log.Debug("HTTP transport connection establishing (oid=" + objectId + "): " + format(uri, httpRequest));
log.Debug(" - target: " + format(target));
}
try
{
IChannel channel_e = await httpPoolManager.acquire(target);
log.Debug(" - acquired! " + channel_e.Id);
// IChannel ch2 = channelFuture.Result;
NettySocketHandler socketHandler2 = (NettySocketHandler)PipelineUtils.getChannelHandler(channel_e);
if (socketHandler2 == null)
{
log.Debug("Socket Handler null.");
}
else
{
NettyRequestListener requestListener2 = new NettyRequestListener(httpListener, target, channel_e, httpPoolManager);
bool listenerBound = socketHandler2.switchListener(uri, requestListener2, interruptionHandler);
if (!listenerBound)
{
this.sessionThread.schedule(new Task(() =>
{
bindAsync(uri, target, httpListener, httpRequest, interruptionHandler);
}), 500);
if (log.IsDebugEnabled)
{
log.Debug("Go Bind!");
}
}
else
{
// Thread.Sleep(400);
Task snd_req = channel_e.WriteAndFlushAsync(httpRequest).ContinueWith((snd_req_task, fu2) =>
{
log.Debug("Send Request Task status = " + snd_req_task.Status);
if (snd_req_task.IsFaulted)
{
log.Error("HTTP write failed [" + channel_e.Id + "]: " + httpRequest.Uri + ", " + snd_req_task.Exception);
channel_e.CloseAsync();
requestListener2.onBroken();
}
}, this);
if (log.IsDebugEnabled)
{
log.Debug("Go with the request " + channel_e.Active);
}
}
}
return;
}
catch (ConnectException ce)
{
log.Info("Connection error: " + ce.Message);
if (log.IsDebugEnabled)
{
log.Debug("HTTP transport connection error (Couldn't get a socket, try again) (oid=" + objectId + "): " + format(uri, httpRequest));
log.Debug(" - " + ce.StackTrace);
}
}
catch (ConnectTimeoutException cte)
{
log.Info("Timeout error: " + cte.Message);
if (log.IsDebugEnabled)
{
log.Debug("HTTP transport timeout error (Couldn't get a socket, try again) (oid=" + objectId + "): " + format(uri, httpRequest));
log.Debug(" - " + cte.StackTrace);
}
}
catch (Exception e)
{
log.Info("Error: " + e.Message);
if (log.IsDebugEnabled)
{
log.Debug("HTTP transport error (Couldn't get a socket, try again) (oid=" + objectId + "): " + format(uri, httpRequest));
log.Debug(" - " + e.StackTrace);
}
}
}
