public void handleEvent(org.osgi.service.event.Event event) {
if (!requestor.isValid()) {
unsubscribe(requestor);
return;
}
addCurrentEvent(topic, event);
requestor.resolveArguments(false);
removeCurrentEvent(topic);
if (uiSync == null) {
if (logger != null)
logger.log(Level.WARNING, "No realm found to process UI event " + event);
return;
} else {
uiSync.syncExec(
new Runnable() {
public void run() {
requestor.execute();
}
});
}
}
@Override
public boolean update(IEclipseContext eventsContext, int eventType, Object[] extraArguments) {
if (eventType == ContextChangeEvent.INITIAL) {
// needs to be done inside runnable to establish dependencies
for (int i = 0; i < keys.length; i++) {
if (keys[i] == null) continue;
IEclipseContext targetContext = (active[i]) ? context.getActiveLeaf() : context;
if (ECLIPSE_CONTEXT_NAME.equals(keys[i])) {
result[i] = targetContext;
IEclipseContext parent = targetContext.getParent(); // creates pseudo-link
if (parent == null)
targetContext.get(ECLIPSE_CONTEXT_NAME); // pseudo-link in case there is no parent
} else if (targetContext.containsKey(keys[i])) result[i] = targetContext.get(keys[i]);
}
return true;
}
if (eventType == ContextChangeEvent.DISPOSE) {
if (eventsContext == context) {
ContextObjectSupplier originatingSupplier =
eventsContext.getLocal(ContextObjectSupplier.class);
requestor.disposed(originatingSupplier);
return false;
}
} else if (eventType == ContextChangeEvent.UNINJECTED) {
if (eventsContext == context) {
ContextObjectSupplier originatingSupplier =
eventsContext.getLocal(ContextObjectSupplier.class);
return requestor.uninject(extraArguments[0], originatingSupplier);
}
} else {
if (!requestor.isValid()) return false; // remove this listener
requestor.resolveArguments(false);
requestor.execute();
}
return true;
}