FoodTask

package com.ranger.anophoo.caloriecounter.tasks;

import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.util.Log;

import com.ranger.anophoo.caloriecounter.Config;
import com.ranger.anophoo.caloriecounter.DAO.DBHelper;
import com.ranger.anophoo.caloriecounter.DAO.Item;
import com.ranger.anophoo.caloriecounter.activities.MainActivity;

import org.json.JSONException;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;


/**
 * Created by anophoo on 12/14/17.
 */
public class FoodTask extends AsyncTask<String, Void, String> {
    private ArrayList<Item> arrayList;
    private MainActivity activity;

    public FoodTask(MainActivity activity) {
        this.activity = activity;
    }

    @Override
    protected String doInBackground(String... strings) {
        HttpURLConnection connection = null;
        String token = null;

        JSONObject obj = new JSONObject();
        try {
            URL url = new URL(Config.DATA_URL);
            connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("POST");
            connection.setRequestProperty("Content-Type", "application/json");
            connection.setAllowUserInteraction(false);
            connection.setConnectTimeout(10000);
            connection.setReadTimeout(10000);

            connection.setRequestProperty("Content-Length", "0");
            connection.setDoInput(true);
            connection.setDoOutput(true);
            connection.setUseCaches(false);
            OutputStream stream = connection.getOutputStream();
            stream.write(obj.toString().getBytes());
            stream.close();
            connection.connect();

            int responseCode = connection.getResponseCode();
            String response = null;
            if (responseCode == HttpURLConnection.HTTP_OK) {
                BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
                StringBuilder builder = new StringBuilder();
                String line;
                while ((line = br.readLine()) != null) {
                    builder.append(line).append("\n");
                }
                br.close();
                response = builder.toString();
            }
            obj = new JSONObject(response);
            token = obj.getString("code");
            Log.i(obj.toString(), "no token no");
        } catch (JSONException e) {
            e.printStackTrace();
        } catch (java.io.IOException e) {
            e.printStackTrace();
        } finally {
            if (connection != null) {
                connection.disconnect();
            }
        }
        if (token != null) {
            return token;
        }
        return null;
    }

}