Hello,
I'm currently developing wicket based application, which displays alarms on map
and allows their modification.
New alarms are sent to server through soap service and map with few other
components on page for all browser clients needs to be refreshed.
I'm using wicketstuff-push for the push service implementation.
org.wicketstuff.push.timer.TimerPushService to be clear.
As an in examples I have method on wicket page which is activated when server
sends notification about an event:
// set new listener for incoming events
final IPushTarget pushTarget =
getTimerPushService().installPush(this);
getPushService().addMapListener(new
MapServiceListener() {
public void onEventChange(final Event event) {
if
(pushTarget.isConnected()) {
Label label = new Label("labelonpage","label"); //label to
be replaced
pushTarget.addComponent(label);
pushTarget.trigger();
}
else { // remove inactive listener
LOG.debug("Removing map listener " + this);
getPushService().removeMapListener(this);
}
...
Problems start with line :
Label label = new Label("labelonpage","label");
which results with:
org.apache.wicket.WicketRuntimeException: There is no application attached to
current thread btpool0-2
at org.apache.wicket.Application.get(Application.java:179)
at
org.apache.wicket.Component.getApplication(Component.java:1323)
at org.apache.wicket.Component.<init>(Component.java:920)
It seems that in this push method, context is lost, I have no session,
request,...
Is there any way I gan regain it or make new?
Or how should I implement push service, which needs to replace some components
on page?
Thanks in advance,
Roland
