private ChatService()
{
_messages = Observable.Create <ChatMessage>(observer =>
{
try
{
if (_client == null)
{
_client = new ChatServiceClient("PollingHttpBinding_IChatServer");
_client.PushMessageReceived += (s, a) => observer.OnNext(a.message);
_client.ConnectCompleted += (s, a) => _token = a.Result;
_client.ChannelFactory.Closed += (s, a) => observer.OnCompleted();
_client.ChannelFactory.Faulted += (s, a) => observer.OnCompleted();
if (_login != null)
{
_client.ConnectAsync(_login);
}
}
}
catch (Exception e)
{
observer.OnError(e);
}
return(() =>
{
_client.CloseAsync();
_client = null;
});
});
}