CodeCheckModel.java

package com.sjriley.zappit.models;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;

import android.content.Context;
import android.location.Location;
import android.util.Log;

import com.google.gson.Gson;
import com.sjriley.zappit.vo.CodeCheckRequest;
import com.sjriley.zappit.vo.CodeCheckResponse;

public class CodeCheckModel extends BaseModel
{
    private static final String TAG = CodeCheckModel.class.getSimpleName(); 
    public CodeCheckModel(Context context){
        super(context);
    }
    
    public CodeCheckResponse checkCode(String userid, String barcode) {
        HttpPost request = new HttpPost("http://zappit.co/service/codecheck");
        List<NameValuePair> nvp = new ArrayList<NameValuePair>();
        Location location = getLocation(); 
        CodeCheckRequest params = new CodeCheckRequest("Hw2za8Hn", userid, barcode, location.getLatitude(),location.getLongitude());
        Gson gson = new Gson();

        nvp.add(new BasicNameValuePair("info", gson.toJson(params)));
        nvp.add(new BasicNameValuePair("submit", "send"));
        CodeCheckResponse result = new CodeCheckResponse();
        
        try
        {
            request.setEntity(new UrlEncodedFormEntity(nvp, HTTP.UTF_8));
            HttpResponse response = httpClient.execute(request);
            BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
            result = gson.fromJson(reader, CodeCheckResponse.class);
        } 
        catch (UnsupportedEncodingException e)
        {   
            result.setStatus(-10);
            result.setMessage("Could not encode parameters");
            e.printStackTrace();
        } catch (ClientProtocolException e)
        {
            result.setStatus(-10);
            result.setMessage("Could not connect to server");
            e.printStackTrace();
        } catch (IOException e)
        {
            result.setStatus(-10);
            result.setMessage("Could not read response");
            e.printStackTrace();
        }
        catch (Exception e)
        {
            result.setMessage("Unknown exception");
            e.printStackTrace();
        }
        
        return result;
    }
}