context.put(HttpClientTransport.HTTP_CONNECTION_PROMISE_CONTEXT_KEY, promise);
HttpDestination destination = (HttpDestination)context.get(HttpClientTransport.HTTP_DESTINATION_CONTEXT_KEY);
HttpClient client = destination.getHttpClient();
ClientConnectionFactory sslConnectionFactory = new SslClientConnectionFactory(client.getSslContextFactory(), client.getByteBufferPool(), client.getExecutor(), connectionFactory);
HttpConnectionOverHTTP oldConnection = (HttpConnectionOverHTTP)endPoint.getConnection();
com.facebook.presto.jdbc.internal.jetty.io.Connection newConnection = sslConnectionFactory.newConnection(endPoint, context);
Helper.replaceConnection(oldConnection, newConnection);
// Avoid setting fill interest in the old Connection,
// without closing the underlying EndPoint.
oldConnection.softClose();
LOG.debug("HTTP tunnel established: {} over {}", oldConnection, newConnection);