Async REST web services calls

[Hendrik Ebbers]

Hi,
maybe DataFX (http://www.javafxdata.org/) can help.



Am 14.02.2013 um 19:10 schrieb Sebastian Gutierrez <scgm11 at gmail.com>:

> Hello list,
> 
> I'm migrating a silverlight app to javafx, but I'm running into this issue:
> 
> I used a lot async calls to REST Webservices on siverlight like this:
> 
>  WebClient test = new WebClient();
>  test.UploadStringCompleted += new UploadStringCompletedEventHandler(test_UploadStringCompleted);
>  test.UploadStringAsync(URL, POST DATA);
> 
> and the callback method:
> 
> 
> void test_UploadStringCompleted(object sender, UploadStringCompletedEventArgs e)
>        {
>      String result =    e.Response();
> 
>            //here I have the response of the web service 
> 
>        }
> 
> 
> 
> 
> 
> now Im using this on JAVAFX:
> 
> 
> public static String ExecPOSTRESTWebService(String resource, String data)
>    {
>        try {
> 
> 
> 
> 
>      String rest = //URL for the rest WS;
> 
>      URL url = new URL(rest);
>      URLConnection conn = url.openConnection();
>      conn.setDoOutput(true);
>            BufferedReader rd;
>            String buffer;
>            try (OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream())) {
>                wr.write(data);
>                wr.flush();
>                rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
>                String line;
>                buffer = "";
>                while ((line = rd.readLine()) != null) {
>                    buffer = buffer + line;
>                }
>            }
>      rd.close();
> 
>      return buffer;
> 
>        } catch (Exception ex) {
>            Logger.getLogger(Utils.class.getName()).log(Level.SEVERE, ex.toString());
>            return "";
>        }
> 
>    }
> 
> 
> the problem is that this is sync and not async so I block the UI, I know I can do some threading and Platform.runlater… and those… but for many calls the code will get hard to read and difficult
> is there any component around that does the async calls with a callback method?? any library?
> 
> 
> Thanks!
> 
> 
>