gistfile1.java

       AsyncHttpClient client = new AsyncHttpClient();
       TransferCompletionHandler tl = new TransferCompletionHandler();
       tl.addTransferListener(new TransferListener() {

            public void onStart() {

            }

            public void onBytesTransfered(ByteBuffer buffer) {
                // Do something with the bytes
            }

            public void onEnd() {

            }

            public void onTrowable(Throwable t) {

            }
        });

        Response response = httpClient.prepareGet("http://...").execute(tl).get();