public void logout(User user, IChatObserver client)
{
IChatObserver localClient = loggedClients[user.Id];
if (localClient == null)
{
throw new ChatException("User " + user.Id + " is not logged in.");
}
loggedClients.Remove(user.Id);
notifyFriendsLoggedOut(user);
}
private void notifyFriendsLoggedOut(User user)
{
User[] friends = userRepository.getFriends(user);
foreach (User us in friends)
{
if (loggedClients.ContainsKey(us.Id))
{
IChatObserver chatClient = loggedClients[us.Id];
chatClient.friendLoggedOut(user);
}
}
}
private void notifyFriendsLoggedOut(User user)
{
IEnumerable <User> friends = userRepository.getFriendsOf(user);
foreach (User us in friends)
{
if (loggedClients.ContainsKey(us.Id))
{
IChatObserver chatClient = loggedClients[us.Id];
Task.Run(() => chatClient.friendLoggedOut(user));
}
}
}
private void notifyFriendsLoggedIn(User user)
{
User[] friends = userRepository.getFriends(user);
Console.WriteLine("notify logged friends " + friends.Count());
foreach (User us in friends)
{
if (loggedClients.ContainsKey(us.Id))
{
IChatObserver chatClient = loggedClients[us.Id];
chatClient.friendLoggedIn(user);
}
}
}
private void notifyFriendsLoggedIn(User user)
{
IEnumerable <User> friends = userRepository.getFriendsOf(user);
Console.WriteLine("notify logged friends " + friends.Count());
foreach (User us in friends)
{
if (loggedClients.ContainsKey(us.Id))
{
IChatObserver chatClient = loggedClients[us.Id];
Task.Run(() => chatClient.friendLoggedIn(user));
}
}
}
public void sendMessage(Message message)
{
String id_receiver = message.Receiver.Id;
if (loggedClients.ContainsKey(id_receiver)) //the receiver is logged in
{
IChatObserver receiverClient = loggedClients[id_receiver];
receiverClient.messageReceived(message);
}
else
{
throw new ChatException("User " + id_receiver + " not logged in.");
}
}
public virtual void logout(User user, IChatObserver client)
{
UserDTO udto = DTOUtils.getDTO(user);
sendRequest(new LogoutRequest(udto));
Response response = readResponse();
closeConnection();
if (response is ErrorResponse)
{
ErrorResponse err = (ErrorResponse)response;
throw new ChatException(err.Message);
}
}
private void closeConnection()
{
finished = true;
try
{
stream.Close();
//output.close();
connection.Close();
_waitHandle.Close();
client = null;
}
catch (Exception e)
{
Console.WriteLine(e.StackTrace);
}
}
public void login(User user, IChatObserver client)
{
User userOk = userRepository.findBy(user.Id, user.Password);
if (userOk != null)
{
if (loggedClients.ContainsKey(user.Id))
{
throw new ChatException("User already logged in.");
}
loggedClients[user.Id] = client;
notifyFriendsLoggedIn(user);
}
else
{
throw new ChatException("Authentication failed.");
}
}
public void login(User user, IChatObserver client)
{
bool loginOk = userRepository.verifyUser(user);
if (loginOk)
{
if (loggedClients.ContainsKey(user.Id))
{
throw new ChatException("User already logged in.");
}
loggedClients[user.Id] = client;
notifyFriendsLoggedIn(user);
}
else
{
throw new ChatException("Authentication failed.");
}
}
public virtual void login(User user, IChatObserver client)
{
initializeConnection();
UserDTO udto = DTOUtils.getDTO(user);
sendRequest(new LoginRequest(udto));
Response response = readResponse();
if (response is OkResponse)
{
this.client = client;
return;
}
if (response is ErrorResponse)
{
ErrorResponse err = (ErrorResponse)response;
closeConnection();
throw new ChatException(err.Message);
}
}
public void logout(User user, IChatObserver client)
{
}
public Task UnsubscribeFromMessages(IChatObserver subscriber)
{
_subscribers.Unsubscribe(subscriber);
return TaskDone.Done;
}
public Task SubscribeForMessages(IChatObserver subscriber)
{
_subscribers.Subscribe(subscriber);
return TaskDone.Done;
}
