Java tutorial
/* This file is part of the Diaspora Native WebApp. Diaspora Native WebApp is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Diaspora Native WebApp is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the Diaspora Native WebApp. If not, see <http://www.gnu.org/licenses/>. */ package ar.com.tristeslostrestigres.diasporanativewebapp.services; import android.app.Service; import android.content.Intent; import android.os.AsyncTask; import android.os.IBinder; import android.util.Log; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.StatusLine; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.json.JSONArray; import org.json.JSONObject; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; public class GetPodsService extends Service { public static final String MESSAGE = "ar.com.tristeslostrestigres.diasporanativewebapp.podsreceived"; private static final String TAG = "Diaspora Pod Service"; public GetPodsService() { } @Override public int onStartCommand(Intent intent, int flags, int startId) { getPods(); return super.onStartCommand(intent, flags, startId); } private void getPods() { /* * Most of the code in this AsyncTask is from the file getPodlistTask.java * from the app "Diaspora Webclient". * A few modifications and adaptations were made by me. * Source: * https://github.com/voidcode/Diaspora-Webclient/blob/master/src/com/voidcode/diasporawebclient/getPodlistTask.java * Thanks to Terkel Srensen */ AsyncTask<Void, Void, String[]> getPodsAsync = new AsyncTask<Void, Void, String[]>() { @Override protected String[] doInBackground(Void... params) { // TODO: Update deprecated code StringBuilder builder = new StringBuilder(); HttpClient client = new DefaultHttpClient(); List<String> list = null; try { HttpGet httpGet = new HttpGet("http://podupti.me/api.php?key=4r45tg&format=json"); HttpResponse response = client.execute(httpGet); StatusLine statusLine = response.getStatusLine(); int statusCode = statusLine.getStatusCode(); if (statusCode == 200) { HttpEntity entity = response.getEntity(); InputStream content = entity.getContent(); BufferedReader reader = new BufferedReader(new InputStreamReader(content)); String line; while ((line = reader.readLine()) != null) { builder.append(line); } } else { //TODO Notify User about failure Log.e(TAG, "Failed to download list of pods"); } } catch (IOException e) { //TODO handle json buggy feed e.printStackTrace(); } //Parse the JSON Data try { JSONObject j = new JSONObject(builder.toString()); JSONArray jr = j.getJSONArray("pods"); Log.d(TAG, "Number of entries " + jr.length()); list = new ArrayList<String>(); for (int i = 0; i < jr.length(); i++) { JSONObject jo = jr.getJSONObject(i); Log.d(TAG, jo.getString("domain")); String secure = jo.getString("secure"); if (secure.equals("true")) list.add(jo.getString("domain")); } } catch (Exception e) { //TODO Handle Parsing errors here e.printStackTrace(); } if (list != null) return list.toArray(new String[list.size()]); else return null; } @Override protected void onPostExecute(String[] strings) { Intent broadcastIntent = new Intent(MESSAGE); if (strings != null) broadcastIntent.putExtra("pods", strings); sendBroadcast(broadcastIntent); stopSelf(); } }; getPodsAsync.execute(); } @Override public IBinder onBind(Intent intent) { // TODO: Return the communication channel to the service. throw new UnsupportedOperationException("Not yet implemented"); } }