is there a better way to retrieve this Json? - json

Question

I've made this code to download this JSON:
private void rxPublishProgress()
{
final OkHttpClient mOkHttpClient = new OkHttpClient();
final Request mRequest = new Request.Builder().url(AirportService.SERVICE_ENDPOINT).build();
Observable.create(new Observable.OnSubscribe<String>()
{
#Override
public void call(Subscriber<? super String> subscriber)
{
try {
InputStream inputStream;
okhttp3.Response response = mOkHttpClient.newCall(mRequest).execute();
if (response.isSuccessful())
{
inputStream = response.body().byteStream();
long len = response.body().contentLength();
String progress = "0";
subscriber.onNext(progress);
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
byte[] data = new byte[1024];
long total = 0;
int count;
String line = null;
final int bufferSize = 1024;
boolean flag = false;
JSONObject jsonObject = null;
final char[] buffer = new char[bufferSize];
final StringBuilder out = new StringBuilder();
Reader in = new InputStreamReader(inputStream, "UTF-8");
for(;flag ==false ;)
{
count = in.read(buffer, 0, buffer.length);
if (count == -1)
{
progress = "100";
subscriber.onNext(progress);
flag = true;
}
else
{
out.append(buffer, 0, count);
// Log.d("out",out.toString());
total += count;
progress = String.valueOf(total * 100 / len);
subscriber.onNext(progress);
}
}
inputStream.close();
// try parse the string to a JSON object
try
{
jsonObject = new JSONObject(out.toString());
}
catch (JSONException e)
{
e.printStackTrace();
}
Log.d("lengt",String.valueOf(jsonObject.length()));
subscriber.onCompleted();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}).subscribeOn(Schedulers.newThread()).subscribe(new Subscriber<String>() {
#Override
public void onCompleted()
{
Log.d("Complete","complete");
}
#Override
public void onError(Throwable e)
{
}
#Override
public void onNext(final String progress) {
getActivity().runOnUiThread(new Runnable() {
#Override
public void run()
{
percentage.setText(progress+"%");
}
});
}
});
and it works, but I don't know how to retrieve this JSON or to convert with GSON.
I need to retrieve the percentage of download because it's a specific request of this project, but I need also the JSONObject or the List . How could I do to have this?
Thanks

Answer 1

As i got you have 1 Observable and you need:
1) display percentage
2) do something else
So you can do like this:
Observable<okhttp3.Response> responseObservable = Observable.create(/*your code to return response*/)
.subscribeOn(Schedulers.newThread())
.replay(1)
.refCount();
responseObservable
.map(toPercents())
.subscribe(displayPercents());
responseObservable
.map(toSomethingElse())
.subscribe(displaySomethingElse());