@Override
public boolean hasNext() {
while (next == null && toConsumeEvents.size() > 0) {
WindowEvent toConsumeEvent = toConsumeEvents.removeFirst();
String consumedId = toConsumeEvent.getWindowId();
//
PortletInfo consumerPortletInfo = context.getPortletInfo(consumedId);
if (consumerPortletInfo == null) {
log.trace(
"Cannot deliver event "
+ toConsumeEvent
+ " because the consumer of the event does not have a portlet info");
safeInvoker.eventDiscarded(
context.getEventControllerContext(),
this,
toConsumeEvent,
EventControllerContext.EVENT_CONSUMER_INFO_NOT_AVAILABLE);
continue;
}
//
if (!controller.getDistributeNonConsumableEvents()) {
if (!consumerPortletInfo
.getEventing()
.getConsumedEvents()
.containsKey(toConsumeEvent.getName())) {
log.trace(
"Cannot deliver event "
+ toConsumeEvent
+ " because the consumer of the event does not accept the event name");
safeInvoker.eventDiscarded(
context.getEventControllerContext(),
this,
toConsumeEvent,
EventControllerContext.PORTLET_DOES_NOT_CONSUME_EVENT);
continue;
}
}
//
next = toConsumeEvent;
}
//
return next != null;
}
boolean push(WindowEvent consumedEvent, WindowEvent producedEvent) {
String producerId = producedEvent.getWindowId();
PortletInfo producerPortletInfo = context.getPortletInfo(producerId);
//
if (producerPortletInfo == null) {
log.trace(
"Cannot deliver event "
+ producedEvent
+ " because the producer does not have portlet info");
safeInvoker.eventDiscarded(
context.getEventControllerContext(),
this,
producedEvent,
EventControllerContext.EVENT_PRODUCER_INFO_NOT_AVAILABLE);
return true;
} else {
//
if (!controller.getDistributeNonProduceableEvents()) {
if (!producerPortletInfo
.getEventing()
.getProducedEvents()
.containsKey(producedEvent.getName())) {
log.trace(
"Cannot deliver event "
+ producedEvent
+ " because the producer of the event does not produce the event name");
safeInvoker.eventDiscarded(
context.getEventControllerContext(),
this,
producedEvent,
EventControllerContext.PORTLET_DOES_NOT_CONSUME_EVENT);
return true;
}
}
// Apply produced event quota if necessary
int producedEventThreshold = controller.getProducedEventThreshold();
if (producedEventThreshold >= 0) {
if (producedEventSize + 1 > producedEventThreshold) {
log.trace(
"Event distribution interrupted because the maximum number of produced event is reached");
safeInvoker.eventDiscarded(
context.getEventControllerContext(),
this,
producedEvent,
EventControllerContext.PRODUCED_EVENT_FLOODED);
return false;
}
}
//
Iterable<WindowEvent> toConsume =
safeInvoker.eventProduced(
context.getEventControllerContext(), this, consumedEvent, producedEvent);
//
if (toConsume == null) {
return false;
} else {
producedEventSize++;
for (WindowEvent event : toConsume) {
toConsumeEvents.add(event);
}
return true;
}
}
}
