Android Open Source - AndroidCouponAssistant Db Get Coupons

• Back to Camera/server  ↑

From Project

Back to project page AndroidCouponAssistant.

License

The source code is released under:

MIT License

Java Source Code

package com.corylucasjeffery.couponassistant;
/*  w w  w  .  j a va  2  s. c  o m*/

import android.app.ListActivity;
import android.os.AsyncTask;
import android.util.Log;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
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 DbGetCoupons extends AsyncTask<String, Void, ArrayList<Coupon>> {
    private String POST_COUPON_URL = "http://dlthompson81.byethost24.com/CouponPHP/form_code/get_coupon.php";

    private final String TAG = "GET-COUP";
    private String username;
    private String password;
    private String barcode;

    private ListActivity parent;

    public DbGetCoupons(String username, String password, String barcode, ListActivity activity)  {
        this.username = username;
        this.password = password;
        this.barcode = barcode;
        this.parent = activity;
    }

    @Override
    protected ArrayList<Coupon> doInBackground(String... params) {
        ArrayList<Coupon> coupons = new ArrayList<Coupon>();
        try {
            //Prepare the post values
            List<NameValuePair> parameters = new ArrayList<NameValuePair>();
            parameters.add(new BasicNameValuePair("username", this.username));
            parameters.add(new BasicNameValuePair("password", this.password));
            parameters.add(new BasicNameValuePair("barcode", this.barcode));

            //Create the connection to the website
            HttpClient client = new DefaultHttpClient();
            HttpPost post = new HttpPost(POST_COUPON_URL);
            //Load parameters
            post.setEntity(new UrlEncodedFormEntity(parameters));
            //Send parameters and get the response
            HttpResponse response = client.execute(post);
            HttpEntity entity = response.getEntity();
            InputStream message = entity.getContent();

            //Convert returned data to a string
            BufferedReader bReader = new BufferedReader(new InputStreamReader(message, "iso-8859-1"));
            StringBuilder sBuilder = new StringBuilder();
            String line = null;
            while ((line = bReader.readLine()) != null) {
                sBuilder.append(line + "\n");
            }
            message.close();
            String result = sBuilder.toString();
            //Grab data from JSON string
            JSONObject jObject = new JSONObject(result);
            int success = jObject.getInt("success");
            String jmessage = jObject.getString("message");
            if (success == PhpWrapper.SUCCESS_VALUE){
                /*
                {"success":1,"message":"Coupons found!","coupons":[{"full_code":"549000011025","exp_date":"2013-12-31","image_blob":"image-not-found"},{"full_code":"549000011155","exp_date":"2013-11-30","image_blob":"image-not-found"},{"full_code":"549000011425","exp_date":"2014-02-01","image_blob":"image-not-found"}]}
                 */
                JSONArray jsonArray = jObject.getJSONArray("coupons");
                int size = jsonArray.length();

                if (size == 0) {
                    Coupon c = new Coupon("999999999999", "2001-01-01", "no-coupon-found");
                    coupons.add(c);
                }

                for(int i = 0; i < size; i++)
                {
                    JSONObject jsonItem = jsonArray.getJSONObject(i);
                    String upc = jsonItem.getString("full_code");
                    String exp_date = jsonItem.getString("exp_date");
                    String img = jsonItem.getString("image_blob");
                    Coupon c = new Coupon(upc, exp_date, img);
                    coupons.add(c);
                }
            }
            else
            {
                String emptyBarcode = "";
                String emptyDate = "";
                String emptyDescription = "No coupons found";
                Coupon c = new Coupon(emptyBarcode, emptyDate, emptyDescription);
            }

        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        }
        return coupons;
    }

    @Override
    protected void onPreExecute() {
        ProgressBarHelper.initializeProgressBar(parent);
    }

    @Override
    protected void onPostExecute(ArrayList<Coupon> result) {
        //super.onPostExecute(result);
        ProgressBarHelper.closeProgressBar();
    }
}

Java Source Code List

• Back to Camera/server  ↑