/// <summary>
/// Follow the user sent in. Anytime a message is tweeted, this user will be notified
/// and the ReceiveFeed method kicked of.
/// </summary>
/// <param name="theuser"></param>
public override void AddFollowing(BaseUser theuser)
{
HashSet<BaseUser>.Enumerator hbe = Following.GetEnumerator();
while (hbe.MoveNext())
{
if (hbe.Current.UserName.Equals(theuser.UserName))
return;
}
theuser.AddObserver(new NotifyObserver(this.ReceiveFeed));
Following.Add(theuser);
}
/// <summary>
/// Adds the user if not exists, otherwise just add the follower
/// </summary>
/// <param name="username"></param>
/// <param name="followername"></param>
public void AddUser(string username, string followername)
{
follower = FindUser(followername);
if (follower == null)
{
follower = UserFactory.CreateUser(followername);
AllUsers.Add(follower.UserName, follower);
}
user = FindUser(username);
if (user != null)
{
follower.AddFollowing(user);
return;
}
else
{
// user does not already exists, add the user and the follower
user = UserFactory.CreateUser(username);
follower.AddFollowing(user);
AllUsers.Add(user.UserName, user);
}
}
/// <summary>
/// textline should be of format: x> msg with msg not being longer than 140 characters in length
/// textline should already be validated by this point
/// </summary>
/// <param name="textline"></param>
private void ParseTweetLine(string textline)
{
if (textline.Equals(String.Empty))
return;
// get author name
string[] parts = textline.Split('>');
if (parts.Count() <= 0)
return;
user = FindUser(parts[0].ToLowerInvariant());
if (user == null)
return;
user.Tweet(MessageFactory.CreateMessage(parts[1], parts[0]));
}
public abstract void AddFollowing(BaseUser theuser);