/**
* Returns the current presence of the user.
*
* @param user the user
* @return the current presence of the user.
*/
public Presence getPresence(ApnUser user) {
if (user == null) {
return null;
}
Presence presence = null;
ClientSession session = sessionManager.getSession(user.getUsername());
if (session != null) {
presence = session.getPresence();
}
return presence;
}
/**
* Broadcasts a newly created notification message to all connected users.
*
* @param apiKey the API key
* @param title the title
* @param message the message details
* @param uri the uri
*/
public void sendBroadcast(String apiKey, String title, String message, String uri) {
log.debug("sendBroadcast()...");
List<User> users = userService.getUsers();
for (User user : users) {
ClientSession session = sessionManager.getSession(user.getUsername());
Random random = new Random();
String id = Integer.toHexString(random.nextInt());
IQ notificationIQ = createNotificationIQ(id, apiKey, title, message, uri);
if (session != null && session.getPresence().isAvailable()) {
notificationIQ.setTo(session.getAddress());
session.deliver(notificationIQ);
}
saveNotification(id, apiKey, user.getUsername(), title, message, uri);
}
}
/**
* Routes the Presence packet.
*
* @param packet the packet to route
*/
public void route(Presence packet) {
if (packet == null) {
throw new NullPointerException();
}
// 根据发送包的jid查询建立连接的会话(session)
ClientSession session = sessionManager.getSession(packet.getFrom());
// 当没有建立连接且状态为非连接状态，进行Presence包处理
if (session == null || session.getStatus() != Session.STATUS_CONNECTED) {
handle(packet);
} else {
// 返回未授权错误
packet.setTo(session.getAddress());
packet.setFrom((JID) null);
packet.setError(PacketError.Condition.not_authorized);
session.process(packet);
}
}
private void handle(Presence packet) {
try {
// 取得信息包类型
Presence.Type type = packet.getType();
// Presence updates (null == 'available')
if (type == null || Presence.Type.unavailable == type) {
presenceUpdateHandler.process(packet);
} else {
log.warn("Unknown presence type");
}
} catch (Exception e) {
log.error("Could not route packet", e);
// 出现异常关闭会话
Session session = sessionManager.getSession(packet.getFrom());
if (session != null) {
session.close();
}
}
}
/**
* Sends a newly created notification message to the specific user.
*
* @param apiKey the API key
* @param title the title
* @param message the message details
* @param uri the uri
*/
public void sendNotifcationToUser(
String apiKey, String username, String title, String message, String uri, boolean save) {
log.debug("sendNotifcationToUser()...");
Random random = new Random();
String id = Integer.toHexString(random.nextInt());
IQ notificationIQ = createNotificationIQ(id, apiKey, title, message, uri);
ClientSession session = sessionManager.getSession(username);
if (session != null) {
if (session.getPresence().isAvailable()) {
notificationIQ.setTo(session.getAddress());
session.deliver(notificationIQ);
}
}
try {
User user = userService.getUserByUsername(username);
if (user != null && save) {
saveNotification(id, apiKey, username, title, message, uri);
}
} catch (UserNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* Returns the availability of the user.
*
* @param user the user
* @return true if the user is available
*/
public boolean isAvailable(ApnUser user) {
return sessionManager.getSession(user.getUsername()) != null;
}
