void ReceiveCall(Telephone source)
{
if (observer != null)
{
observer.IncomingCall(this, source.number);
}
}
public void Calling(Telephone dest)
{
if (observer != null)
{
observer.OutgoingCall(this, dest.number);
}
if (account >= CHARGE)
{
dest.ReceiveCall(this);
account -= CHARGE;
}
}
static void Main(string[] args)
{
Telephone t1 = new Telephone("1"), t2 = new Telephone("2");
CallJournal n = new CallJournal();
t1.ObserveRegister(n);
t2.ObserveRegister(new FileJournal());
t1.UploadAccount(500);
t1.Calling(t2);
t1.Calling(t2);
t2.Calling(t1);
t2.Calling(t1);
t1.Calling(t2);
t1.Calling(t2);
t2.Calling(t1);
Console.ReadLine();
}
public void OutgoingCall(Telephone sender, string dest_number)
{
System.IO.File.AppendAllText("journal.log", "Outgoing call: " + sender + ", source: " + dest_number + "\r\n");
}
public void IncomingCall(Telephone sender, string source_number)
{
System.IO.File.AppendAllText("journal.log", "Incoming call: " + sender + ", source: " + source_number + "\r\n");
}
public void OutgoingCall(Telephone sender, string dest_number)
{
Console.WriteLine("Outgoing call: " + sender + ", destination: " + dest_number);
}
public void IncomingCall(Telephone sender, string source_number)
{
Console.WriteLine("Incoming call: " + sender + ", source: " + source_number);
}
