package chapter18;

import java.util.ArrayList;

public class ClientQueue {

private ArrayList clients = new ArrayList();

private ArrayList listeners = new ArrayList();

public void addClientListener(ClientListener listener) {

listeners.add(listener);

}

public void add(Client client) {

clients.add(client);

ClientEvent event = new ClientEvent(client);

for (int i = 0; i < listeners.size();i++) {

ClientListener listener = (ClientListener)listeners.get(i);

listener.clientAdded(event);

}

}

public void remove(Client client) {

clients.remove(client);

ClientEvent event = new ClientEvent(client);

for (int i = 0; i < listeners.size();i++) {

ClientListener listener = (ClientListener)listeners.get(i);

listener.clientRemoved(event);

}

}

}