/**
* This method is invoked when an attribute is added to the ServletContext object
*
* @param event Description of the Parameter
*/
public void attributeAdded(HttpSessionBindingEvent event) {
ServletContext context = event.getSession().getServletContext();
if ("User".equals(event.getName())) {
// A user session has been created, can be a portal user or system user
UserBean thisUser = (UserBean) event.getValue();
thisUser.setSessionId(event.getSession().getId());
// Track website users
Hashtable systems = (Hashtable) context.getAttribute("SystemStatus");
if (systems != null && thisUser.getConnectionElement() != null) {
SystemStatus systemStatus =
(SystemStatus) systems.get(thisUser.getConnectionElement().getUrl());
if (systemStatus != null) {
Tracker tracker =
((SystemStatus)
((Hashtable) context.getAttribute("SystemStatus"))
.get(thisUser.getConnectionElement().getUrl()))
.getTracker();
tracker.add(thisUser.getSessionId(), thisUser);
}
}
}
}
/**
* This method is invoked when an attribute is replaced in the ServletContext object
*
* @param event Description of the Parameter
*/
public void attributeReplaced(HttpSessionBindingEvent event) {
// This event has a handle to the old User object
ServletContext context = event.getSession().getServletContext();
// The user has logged in
if ("User".equals(event.getName())) {
UserBean thisUser = (UserBean) event.getValue();
thisUser.setSessionId(event.getSession().getId());
Tracker tracker =
((SystemStatus)
((Hashtable) context.getAttribute("SystemStatus"))
.get(thisUser.getConnectionElement().getUrl()))
.getTracker();
tracker.remove(event.getSession().getId());
tracker.add(thisUser.getSessionId(), thisUser);
}
}
/**
* This method is invoked when an attribute is removed from the ServletContext object
*
* @param se Description of the Parameter
*/
public void attributeRemoved(HttpSessionBindingEvent se) {
ServletContext context = se.getSession().getServletContext();
try {
if (se.getName().equals("User")) {
UserBean thisUser = (UserBean) se.getValue();
if (thisUser != null) {
// Internal SessionManager
int userId = thisUser.getActualUserId();
if (userId > -2) {
// If context reloaded, then SystemStatus is null, but user is valid
Hashtable systems = (Hashtable) context.getAttribute("SystemStatus");
if (systems != null) {
SystemStatus systemStatus =
(SystemStatus) systems.get(thisUser.getConnectionElement().getUrl());
if (systemStatus != null) {
// Remove the user from the session if it already is there
SessionManager thisManager = systemStatus.getSessionManager();
if (thisManager != null) {
UserSession thisSession = thisManager.getUserSession(userId);
if (thisSession != null && thisSession.getId().equals(thisUser.getSessionId())) {
if (System.getProperty("DEBUG") != null) {
System.out.println(
"ContextSessionListener-> Session for user " + userId + " ended");
}
thisManager.removeUser(userId);
if (System.getProperty("DEBUG") != null) {
System.out.println(
"ContextSessionListener-> User removed from valid user list");
}
}
}
// Website Tracker
Tracker tracker = systemStatus.getTracker();
tracker.remove(thisUser.getSessionId());
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace(System.out);
System.out.println("ContextSessionListener-> attributeRemoved Error: " + e.toString());
}
}