Passing Data from a Ansunc class to another class

So I have been working on this and now I am stuck. I have got some useful tips here and there but I can not figure out how to get the data out of the callBack method so I can use it in the parsing method.
What I am trying to do is to download a JSon file from the web (This is done fine and works)
Then pass the results to the Json parser class (this part is where I am stuck)
Then parse out the Json file(this works fine too)

I am at a lost as to how to pass the information right. I know I am missing something with android methods but cant lay my finer on it.

So this is the downloader class that I am using

Code (Java):

1. public class JsonDownloaderTask extends AsyncTask<String, Void, String> {
2.  
3.     private String username;
4.     private String password;
5.     private AsyncResponse<String> callback;
6.  
7.  
8.     public JsonDownloaderTask(String username, String password) {
9.         this.username = username;
10.         this.password = password;
11.     }
12.  
13.     public void setCallback(AsyncResponse<String> callback)
14.     {
15.         this.callback = callback;
16.     }
17.  
18.     @Override
19.     protected String doInBackground(String... params) {
20.         String url = params[0];
21.         return readFromFile(url);
22.     }
23.  
24.     @Override
25.     protected void onPostExecute(String s) {
26.         super.onPostExecute(s);
27.         if (callback != null) {
28.             callback.onResponse(s);
29.         }else
30.         {
31.             Log.d(JsonDownloaderTask.class.getSimpleName(), " The Respone was ignored");
32.         }
33.     }
34.  
35.     private String streamToString(InputStream is) throws IOException {
36.  
37.         StringBuilder sb = new StringBuilder();
38.         BufferedReader rd = new BufferedReader(new InputStreamReader(is));
39.         //add a fake parent to the line json data
40.         sb.append("{ \"\"");
41.         String line;
42.         while ((line = rd.readLine()) != null) {
43.             sb.append(line);
44.         }
45.         sb.append("}");
46.         return sb.toString();
47.     }
48.  
49.     private String readFromFile(String myWebpage) {
50.  
51.         String response = null;
52.         HttpURLConnection urlConnection = null;
53.  
54.         try {
55.             //Get the url connection
56.             URL url = new URL(myWebpage);
57.             Authenticator.setDefault(new Authenticator() {
58.                 @Override
59.                 protected PasswordAuthentication getPasswordAuthentication() {
60.                     return new PasswordAuthentication(username, password.toCharArray());
61.                 }
62.             });
63.             urlConnection = (HttpURLConnection) url.openConnection();
64.  
65.             InputStream inputStream = urlConnection.getInputStream();
66.  
67.             if (inputStream != null) {
68.                 response = streamToString(inputStream);
69.                 inputStream.close();
70.                 //Log.d("Final String", response);
71.             }
72.  
73.         } catch (IOException e) {
74.             e.printStackTrace();
75.         } finally {
76.             if (urlConnection != null) {
77.                 urlConnection.disconnect();
78.             }
79.         }
80.  
81.         return response;
82.     }
83. }

And this is the JsonParser coce;

Code (Java):

1. public class JSONParser {
2.  
3.     JSONObject jsonResponse;
4.     String jsonData;
5.     String username = "admin";
6.     String password = "admin";
7.  
8.     //Consturctor
9.     public JSONParser() { }
10.  
11.  
12.  
13.     public void parsesData(String promo,
14.                            ArrayList<String> pictureHTTP,
15.                            ArrayList<String> pathHTTP,
16.                            ArrayList<String> labelText) throws IOException {
17.  
18.         JsonDownloaderTask task = new JsonDownloaderTask(username, password);
19.         task.setCallback(new AsyncResponse<String>() {
20.             @Override
21.             public void onResponse(String response) {
22.                 //Assign Resutls to the Json data
23.                 jsonData = response;
24.                 Log.d("Respons in Json :", jsonData);
25.                 //parsesData();
26.  
27.             }
28.         });
29.         task.execute(promo);
30.  
31.         //Try to parse the data
32.         try
33.         {
34.             //Log.d("In the Try bloack" , jsonData);
35.  
36.             //if the jsonData is emplty then use hardcode crap
37.             if(jsonData == null)
38.             {
39.                 jsonData =  "{ \"\" :[{\"picture\":\"https://apivitadev-643304293.ap-northeast-1.elb.amazonaws.com/media/wysiwyg/_HP_0122-0214.jpg\",\"path\":\"http://52.68.68.86/magento\",\"label\":\"Product One\"},{\"picture\":\"http://i.imgur.com/OMDyG8I.jpg\",\"path\":\"http://52.68.68.86/magento/index.php/hair-care.html\",\"label\":\"Product Two\"},{\"picture\":\"http://lh3.ggpht.com/_GEnSvSHk4iE/TDSfmyCfn0I/AAAAAAAAF8Y/cqmhEoxbwys/s144-c/_MG_3675.jpg\",\"path\":\"http://52.68.68.86/magento/index.php/face-care.html\",\"label\":\"Product Three\"}] }";
40.  
41.             }
42.  
43.             //Creaate a new JSONObject ith the name/value mapping from the JSON string
44.             jsonResponse = new JSONObject(jsonData);
45.             //Returns the value mapped by the name if it exists and is a JSONArry
46.             JSONArray jsonMainNode = jsonResponse.optJSONArray("");
47.  
48.             //Proccess the JSON node
49.             int lenghtJsonArrar = jsonMainNode.length();
50.             for (int i = 0; i<lenghtJsonArrar; i++)
51.             {
52.                 //Get object for each json node
53.                 JSONObject jsonChildNode = jsonMainNode.getJSONObject(i);
54.                 //Get the node values
55.                 //int song_id = Integer.parseInt(jsonChildNode.optString("song_id").toString());
56.                 String picture = jsonChildNode.optString("picture").toString();
57.                 String pathName = jsonChildNode.optString("path").toString();
58.                 String lableName = jsonChildNode.optString("label".toString());
59.                 //Debug Testing code
60.                 pictureHTTP.add(picture);
61.                 pathHTTP.add(pathName);
62.                 labelText.add(lableName);
63.  
64.  
65.             }
66.  
67.         } catch (JSONException e) {
68.             e.printStackTrace();
69.         }
70.  
71.     }
72. }
73.  

And I am using a interface here as a go between

Code (Java):

1. public interface AsyncResponse<T> {
2.     void onResponse(T response);
3. }
4.  

Any help will be appreciated very much.

 

YES!
Thank you Lv426 the .get() made it work perfectly.