private ScreenState createNewScreenState(String pageName) {
ScreenState state = new ScreenState(pageName, screenIdleTimeout);
String key = SESSION_KEY_PREFIX + state.getId();
getHttpSession().setAttribute(key, state);
currentScreenState.set(state);
LOG.debug("Created new screen " + state.getId());
return state;
}
@Override
public void discardCurrent() {
ScreenState current = current(false);
if (current != null) {
discard(current.getId());
currentScreenState.clear();
}
}
@Override
public void discardTimedOut() {
for (String name : request.getSession(true).getAttributeNames(SESSION_KEY_PREFIX)) {
ScreenState screen = (ScreenState) getHttpSession().getAttribute(name);
if (screen.isTimedOut()) {
LOG.trace("Screen timed out: " + screen.getId());
discard(screen.getId());
}
}
}
@Override
public void discard(String screenId) {
if (LOG.isDebugEnabled()) {
LOG.debug("Discarding screen " + screenId);
}
removeFromSession(screenId);
ScreenState current = current(false);
if (current != null && current.getId().equals(screenId)) {
currentScreenState.clear();
}
}
@Override
public ScreenState current(boolean create) {
ScreenState current = currentScreenState.get();
// Remove current state if not for active page
if (current != null && !current.isForPage(requestGlobals.getActivePageName())) {
currentScreenState.clear();
current = null;
}
if (current == null && create) {
return createNewScreenState(requestGlobals.getActivePageName());
}
return current;
}