Null pointer exception when creating custom Dao with ormlite-android - ormlite

Question

I'm trying to extend the base ORMLite DAO class so I can add some custom methods. I've tried following the answer here, but I'm getting a null error and not sure how to cast the dao object correctly (Ormlite - Constructor call failing when BaseDaoImpl is extended) Currently, I have the following table:
#DatabaseTable(tableName="beers", daoClass=BeerDao.class)
public class Beer {
public static final String BEER_NAME = "name";
#DatabaseField(generatedId = true)
private UUID id = UUID.randomUUID();
#DatabaseField()
private String name;
#DatabaseField()
private String breweryName;
public Beer() {}
... getters/setters
}
The BeerDao class:
public class BeerDao<Beer,UUID> extends BaseDaoImpl<Beer,UUID> {
public BeerDao(ConnectionSource connectionSource, Class<Beer> dataClass) throws SQLException {
super(connectionSource, dataClass);
}
}
DatabaseHelper code:
public class DatabaseHelper extends OrmLiteSqliteOpenHelper {
private static final String TAG = "Database";
private static final String DATABASE_NAME = "brewgenius.db";
private static final int DATABASE_VERSION = 7;
private BeerDao<Beer, UUID> beerDao = null;
private Dao<Checkin, UUID> checkinDao = null;
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION, R.raw.ormlite_config);
}
/* ... onCreate and onUpgrade code ..*/
/**
* Get Beer Model DAO
*
* #return Beer DAO
*/
public BeerDao<Beer, UUID> getBeerDao() {
if (beerDao == null) {
try {
beerDao = getDao(Beer.class);
} catch (SQLException e) {
e.printStackTrace();
}
}
return beerDao;
}
}
In my activity, when I try to get the Dao, I get a null pointer exception.
BeerDao<Beer,UUID> dao = getHelper().getBeerDao();
FYI, Dao is cast to:
BeerDao<Beer,UUID>
UPDATE
It looks like my DatabaseConfigUtil isn't reading the DaoClass attribute.
public class DatabaseConfigUtil extends OrmLiteConfigUtil {
public static void main(String[] args) throws SQLException, IOException {
writeConfigFile("ormlite_config.txt");
}
}
Removing ormlite_config.txt from DatabaseHelper's constuctor caused on-the-fly reading which correctly reads the DaoClass attribute. Any idea why the writer isn't writing this?
Here's ormlite_config.txt
# --table-start--
dataClass=com.brewgenius.model.Beer
tableName=beers
# --table-fields-start--
# --field-start--
fieldName=id
columnName=_id
generatedId=true
# --field-end--
# --field-start--
fieldName=name
# --field-end--
# --field-start--
fieldName=breweryName
# --field-end--
# --table-fields-end--
# --table-end--
#################################