package com.ibm.niosvr.nioserver;
import com.ibm.niosvr.nioserver.event.ServerListener;
import java.util.ArrayList;
/**
* <p>Title: �¼�������</p>
* @author starboy
* @version 1.0
*/
public class Notifier {
private static ArrayList listeners = null;
private static Notifier instance = null;
private Notifier() {
listeners = new ArrayList();
}
/**
* ��ȡ�¼�������
* @return �����¼�������
*/
public static synchronized Notifier getNotifier() {
if (instance == null) {
instance = new Notifier();
return instance;
}
else return instance;
}
/**
* ����¼�������
* @param l ������
*/
public void addListener(ServerListener l) {
synchronized (listeners) {
if (!listeners.contains(l))
listeners.add(l);
}
}
public void fireOnAccept() throws Exception {
for (int i = listeners.size() - 1; i >= 0; i--)
( (ServerListener) listeners.get(i)).onAccept();
}
public void fireOnAccepted(Request request) throws Exception {
for (int i = listeners.size() - 1; i >= 0; i--)
( (ServerListener) listeners.get(i)).onAccepted(request);
}
void fireOnRead(Request request) throws Exception {
for (int i = listeners.size() - 1; i >= 0; i--)
( (ServerListener) listeners.get(i)).onRead(request);
}
void fireOnWrite(Request request, Response response) throws Exception {
for (int i = listeners.size() - 1; i >= 0; i--)
( (ServerListener) listeners.get(i)).onWrite(request, response);
}
public void fireOnClosed(Request request) throws Exception {
for (int i = listeners.size() - 1; i >= 0; i--)
( (ServerListener) listeners.get(i)).onClosed(request);
}
public void fireOnError(String error) {
for (int i = listeners.size() - 1; i >= 0; i--)
( (ServerListener) listeners.get(i)).onError(error);
}
}