* Configure the pipeline for a cleartext upgrade from HTTP to HTTP/2.
*/
private void configureClearText(SocketChannel ch) {
HttpClientCodec sourceCodec = new HttpClientCodec();
Http2ClientUpgradeCodec upgradeCodec = new Http2ClientUpgradeCodec(connectionHandler);
HttpClientUpgradeHandler upgradeHandler = new HttpClientUpgradeHandler(sourceCodec, upgradeCodec, 65536);
ch.pipeline().addLast("Http2SourceCodec", sourceCodec);
ch.pipeline().addLast("Http2UpgradeHandler", upgradeHandler);
ch.pipeline().addLast("Http2UpgradeRequestHandler", new UpgradeRequestHandler());
ch.pipeline().addLast("Logger", new UserEventLogger());