private ItemChangeEvent createItemChangeEvent(FacesContext facesContext) {
if (facesContext == null) {
throw new NullPointerException();
}
// Submitted value == null means "the component was not submitted at all".
String activeItem = getSubmittedActiveItem();
if (activeItem == null) {
return null;
}
String previous = (String) getValue();
if (previous == null || !previous.equalsIgnoreCase(activeItem)) {
UIComponent prevComp = null;
UIComponent actvComp = null;
if (previous != null) {
try {
prevComp = (UIComponent) getItem(previous);
} catch (TogglePanelVisitException e) {
if (LOG.isDebugEnabled()) {
LOG.debug("Cannot include dynamic TogglePanelComponents in itemChangeEvents");
}
prevComp = null;
}
}
if (activeItem != null) {
try {
if (LOG.isDebugEnabled()) {
LOG.debug("Cannot include dynamic TogglePanelComponents in itemChangeEvents");
}
actvComp = (UIComponent) getItem(activeItem);
} catch (TogglePanelVisitException e) {
actvComp = null;
}
}
return new ItemChangeEvent(this, previous, prevComp, activeItem, actvComp);
}
return null;
}
/**
* Note: Filter does not delegate to chain, since it would lead into cycle by calling {@link
* PushServlet#service(ServletRequest, ServletResponse)}.
*/
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
if (request instanceof HttpServletRequest && response instanceof HttpServletResponse) {
HttpServletRequest httpReq = (HttpServletRequest) request;
HttpServletResponse httpResp = (HttpServletResponse) response;
if ("GET".equals(httpReq.getMethod())) {
String pushSessionId = httpReq.getParameter(PUSH_SESSION_ID_PARAM);
Session session = null;
if (pushSessionId != null) {
ensureServletContextAvailable(request);
PushContext pushContext =
(PushContext) servletContext.getAttribute(PushContext.INSTANCE_KEY_NAME);
session = pushContext.getSessionManager().getPushSession(pushSessionId);
}
if (session == null) {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug(MessageFormat.format("Session {0} was not found", pushSessionId));
}
httpResp.sendError(HttpServletResponse.SC_BAD_REQUEST);
return;
}
httpResp.setContentType("text/plain");
Meteor meteor =
Meteor.build(httpReq, SCOPE.REQUEST, Collections.<BroadcastFilter>emptyList(), null);
try {
Request pushRequest = new RequestImpl(meteor, session);
httpReq.setAttribute(SESSION_ATTRIBUTE_NAME, session);
httpReq.setAttribute(REQUEST_ATTRIBUTE_NAME, pushRequest);
pushRequest.suspend();
} catch (Exception e) {
LOGGER.error(e.getMessage(), e);
}
return;
}
}
}