/**
* This method processed an arrived real element The method is synchronized to ensure that it
* cannot interleave with {@link StreamDiscretizer#triggerOnFakeElement(Object)}
*
* @param input a real input element
* @throws Exception
*/
protected synchronized void processRealElement(IN input) throws Exception {
// Setting the input element in order to avoid NullFieldException when triggering on fake
// element
windowEvent.setElement(input);
if (isActiveTrigger) {
ActiveTriggerPolicy<IN> trigger = (ActiveTriggerPolicy<IN>) triggerPolicy;
Object[] result = trigger.preNotifyTrigger(input);
for (Object in : result) {
triggerOnFakeElement(in);
}
}
boolean isTriggered = false;
if (triggerPolicy.notifyTrigger(input)) {
emitWindow();
isTriggered = true;
}
evict(input, isTriggered);
output.collect(windowEvent.setElement(input));
bufferSize++;
}
@Override
public String toString() {
return "Discretizer(Trigger: "
+ triggerPolicy.toString()
+ ", Eviction: "
+ evictionPolicy.toString()
+ ")";
}
@Override
public boolean equals(Object other) {
if (other == null
|| !(other instanceof StreamDiscretizer)
|| (other instanceof GroupedStreamDiscretizer)) {
return false;
} else {
try {
@SuppressWarnings("unchecked")
StreamDiscretizer<IN> otherDiscretizer = (StreamDiscretizer<IN>) other;
return triggerPolicy.equals(otherDiscretizer.triggerPolicy)
&& evictionPolicy.equals(otherDiscretizer.evictionPolicy);
} catch (ClassCastException e) {
return false;
}
}
}
