UploadService.java

package com.sjriley.zappit.services;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStreamReader;

import com.sjriley.zappit.PreferencesActivity;
import com.sjriley.zappit.models.CodeCheckModel;
import com.sjriley.zappit.utils.ConnectionUtils;
import com.sjriley.zappit.vo.CodeCheckResponse;

import android.app.IntentService;
import android.content.Intent;
import android.content.SharedPreferences;
import android.util.Log;
import android.widget.Toast;

public class UploadService extends IntentService
{
    public final static String NAME = "uploadService";
    private static final String TAG = UploadService.class.getSimpleName(); 
    private String currentCode;
    
    public UploadService()
    {
        super(NAME);
    }
   
    @Override
    protected void onHandleIntent(Intent intent)
    {
        //loop until connected
        while(!ConnectionUtils.isConnected(this.getApplicationContext())) {
            try
            {
                synchronized (this)
                {
                    Log.d(TAG, "STILL OFFLINE");
                    wait(5000);
                }
                
            } catch (InterruptedException e)
            {
                e.printStackTrace();
                return;
            }
        }
        uploadOfflineCodes();
    }
    private void uploadOfflineCodes() {
        Log.d(TAG,"Uploading offline codes");
        try {
            FileInputStream fis = openFileInput(PreferencesActivity.OFFLINE_CODES_FILE);
            BufferedReader reader = new BufferedReader(new InputStreamReader(fis));
            String code = null;
            int count = 0;
            while((code = reader.readLine()) != null) {
                Log.d(TAG, "uploading Code : " + code);
                currentCode = code;
                uploadCode();
                count ++;
            }
            Log.d(TAG, "Finished uploading " + count + " codes");
            fis.close();
            deleteFile(PreferencesActivity.OFFLINE_CODES_FILE);
        }
        catch (FileNotFoundException e) {
            Log.d(TAG,"No File left to upload");
        }
        catch (Exception e){
            Log.e(TAG, "error uploading offline codes", e);
            synchronized (this)
            {
                //if the uploading failed, wait 30 seconds and try again
                try {
                    this.wait(30000);
                }
                catch (InterruptedException e1) {
                  e1.printStackTrace();
                }
                finally {
                    Log.e(TAG, "uploading offline codes again", e);
                    uploadOfflineCodes();
                }
            }
            
        }
    }
    
    private void uploadCode() {
        SharedPreferences prefs = getSharedPreferences(PreferencesActivity.DEFAULT_PREFERECES, 0);
        String userId = prefs.getString(PreferencesActivity.USER_ID, "");
        
        CodeCheckModel model = new CodeCheckModel(this.getApplicationContext());
        CodeCheckResponse response =model.checkCode(userId, currentCode);
        Log.d(TAG,"Status for " + currentCode + " is :" + response.getStatus());
    }
}