/**
* Method cleans up all events that either outnumber queue size or exceeds time-to-live value. It
* does none if someone else cleans up queue (lock is locked) or if there are queue readers
* (readersNum > 0).
*/
private void cleanupQueue() {
long now = U.currentTimeMillis();
long queueOversize = evts.sizex() - expireCnt;
for (int i = 0; i < queueOversize && evts.sizex() > expireCnt; i++) {
GridEvent expired = evts.poll();
if (log.isDebugEnabled()) log.debug("Event expired by count: " + expired);
}
while (true) {
ConcurrentLinkedDeque8.Node<GridEvent> node = evts.peekx();
if (node == null) // Queue is empty.
break;
GridEvent evt = node.item();
if (evt == null) // Competing with another thread.
continue;
if (now - evt.timestamp() < expireAgeMs) break;
if (evts.unlinkx(node) && log.isDebugEnabled())
log.debug("Event expired by age: " + node.item());
}
}
private void applyEvent(GridEvent event) {
String fullJobId = event.getJobId();
GridJob job = state.getJobByFullId(fullJobId);
// Update the run state
state.applyEvent(event);
// Update the actor state
switch (event.getType()) {
case SUB:
if (job == null) {
job = new GridJob(event.getSnapshotJob());
}
applySub(job);
break;
case START:
if (job == null) {
log.error("Cannot start null job");
} else {
applyStart(job);
}
break;
case END:
if (job == null) {
log.error("Cannot end null job");
} else {
applyEnd(job, event.getOffset());
}
break;
default:
log.warn("Unrecognized event type: {}", event.getType());
break;
}
}
/** {@inheritDoc} */
@Override
public void record(GridEvent evt) throws GridSpiException {
assert evt != null;
// Filter out events.
if (filter == null || filter.apply(evt)) {
cleanupQueue();
evts.add(evt);
// Make sure to filter out metrics updates to prevent log from flooding.
if (evt.type() != EVT_NODE_METRICS_UPDATED && log.isDebugEnabled())
log.debug("Event recorded: " + evt);
}
}