public List<Trip> GetTripsByUser(User user, User loggedUser)
{
if (loggedUser.IsNotLogged()) throw new UserNotLoggedInException();
var isFriend = user.IsFriendWith(loggedUser);
return isFriend ?
_tripDao.RetrieveTripsByUser(user) : new List<Trip>();
}
// Parametrized Method
public List<Trip> GetTripsByUser(User user)
{
return GetTripsByUser(user, UserSession.GetInstance().GetLoggedUser());
}
public static List<Trip> FindTripsByUser(User user)
{
throw new DependendClassCallDuringUnitTestException(
"TripDAO should not be invoked on an unit test.");
}
// Introduce Instance Delegator
public virtual List<Trip> RetrieveTripsByUser(User user)
{
return FindTripsByUser(user);
}
public bool IsFriendWith(User user)
{
return GetFriends().Contains(user);
}
public void AddFriend(User user)
{
_friends.Add(user);
}
