code: package com.gteam.auctionsystem;
  
  import java.sql.SQLException;
  import java.util.List;
  import java.util.Random;
  
  import android.app.IntentService;
  import android.content.Intent;
  import android.util.Log;
  
  import com.gteam.auctionsystem.db.DatabaseHelper;
  import com.gteam.auctionsystem.model.AuctionItem;
  import com.gteam.auctionsystem.model.Bid;
  import com.gteam.auctionsystem.model.User;
  import com.gteam.auctionsystem.util.Constants;
  
  public class BidderService extends IntentService {
  
  	private static final String TAG = BidderService.class.getSimpleName();
  	private DatabaseHelper databaseHelper;
  
  	public BidderService() {
  		super(TAG);
  	}
  
  	@Override
  	public void onCreate() {
  		super.onCreate();
  		if (databaseHelper == null) {
  			databaseHelper = OrmHelperManager.getHelper(TAG, this, DatabaseHelper.class);
  		}
  	}
  
  	@Override
  	protected void onHandleIntent(Intent intent) {
  		long itemId = intent.getLongExtra(Constants.EXTRA_ITEM_ID, -1);
  		double baseAmount = intent.getDoubleExtra(Constants.EXTRA_BASE_AMOUNT, 0.0);
  		// auto-bidder service
  		try {
  			List<User> users = databaseHelper.getSystemUser();
  			if (users != null && users.size() == 1) {
  				User user = users.get(0);
  				AuctionItem bidFor = new AuctionItem();
  				bidFor.setId(itemId);
  				Bid newBid = new Bid();
  				newBid.setBidFor(bidFor);
  				newBid.setBidder(user);
  				newBid.setQuotePrice(generateBidAmount(baseAmount));
  				newBid.setBidNotes("How's our offer?");
  				databaseHelper.getBidRuntimeDao().create(newBid);
  			}
  		}
  		catch (SQLException ex) {
  			Log.e(TAG, "## --> " + ex);
  		}
  	}
  
  	private double generateBidAmount(double baseAmount) {
  		double bidAmount = 0.0;
  		Random random = new Random();
  		bidAmount = random.nextInt(101) + baseAmount;
  		return bidAmount;
  	}
  
  	@Override
  	public void onDestroy() {
  		super.onDestroy();
  		if (databaseHelper != null) {
  			OrmHelperManager.releaseHelper(TAG);
  			databaseHelper = null;
  		}
  	}
  }
  