@Override
public void run() {
// If there is no delegate, why bother? Just bail.
if (delegate == null) {
return;
}
if (event.reasons() == null || event.reasons().isEmpty()) {
delegate.triggerCompile(Collections.emptySet(), true);
} else {
Set<Key> intentsToRecompile = new HashSet<>();
boolean dontRecompileAllFailedIntents = true;
// Scan through the list of reasons and keep accruing all
// intents that need to be recompiled.
for (Event reason : event.reasons()) {
if (reason instanceof LinkEvent) {
LinkEvent linkEvent = (LinkEvent) reason;
final LinkKey linkKey = linkKey(linkEvent.subject());
synchronized (intentsByLink) {
Set<Key> intentKeys = intentsByLink.get(linkKey);
log.debug(
"recompile triggered by LinkEvent {} ({}) for {}",
linkKey,
linkEvent.type(),
intentKeys);
intentsToRecompile.addAll(intentKeys);
}
dontRecompileAllFailedIntents =
dontRecompileAllFailedIntents
&& (linkEvent.type() == LINK_REMOVED
|| (linkEvent.type() == LINK_UPDATED && linkEvent.subject().isDurable()));
}
}
delegate.triggerCompile(intentsToRecompile, !dontRecompileAllFailedIntents);
}
}
private void printEvent(Event<?, ?> event) {
if (event instanceof DeviceEvent) {
DeviceEvent deviceEvent = (DeviceEvent) event;
if (event.type().toString().startsWith("PORT")) {
// Port event
print(
"%s %s\t%s/%s [%s]",
new LocalDateTime(event.time()),
event.type(),
deviceEvent.subject().id(),
deviceEvent.port().number(),
deviceEvent.port());
} else {
// Device event
print(
"%s %s\t%s [%s]",
new LocalDateTime(event.time()),
event.type(),
deviceEvent.subject().id(),
deviceEvent.subject());
}
} else if (event instanceof MastershipEvent) {
print(
"%s %s\t%s [%s]",
new LocalDateTime(event.time()),
event.type(),
event.subject(),
((MastershipEvent) event).roleInfo());
} else if (event instanceof LinkEvent) {
LinkEvent linkEvent = (LinkEvent) event;
Link link = linkEvent.subject();
print(
"%s %s\t%s/%s-%s/%s [%s]",
new LocalDateTime(event.time()),
event.type(),
link.src().deviceId(),
link.src().port(),
link.dst().deviceId(),
link.dst().port(),
link);
} else if (event instanceof HostEvent) {
HostEvent hostEvent = (HostEvent) event;
print(
"%s %s\t%s [%s->%s]",
new LocalDateTime(event.time()),
event.type(),
hostEvent.subject().id(),
hostEvent.prevSubject(),
hostEvent.subject());
} else if (event instanceof TopologyEvent) {
TopologyEvent topoEvent = (TopologyEvent) event;
List<Event> reasons =
MoreObjects.firstNonNull(topoEvent.reasons(), ImmutableList.<Event>of());
Topology topo = topoEvent.subject();
String summary =
String.format(
"(d=%d,l=%d,c=%d)", topo.deviceCount(), topo.linkCount(), topo.clusterCount());
print(
"%s %s%s [%s]",
new LocalDateTime(event.time()),
event.type(),
summary,
reasons.stream().map(e -> e.type()).collect(toList()));
} else if (event instanceof ClusterEvent) {
print(
"%s %s\t%s [%s]",
new LocalDateTime(event.time()),
event.type(),
((ClusterEvent) event).subject().id(),
event.subject());
} else {
// Unknown Event?
print(
"%s %s\t%s [%s]", new LocalDateTime(event.time()), event.type(), event.subject(), event);
}
}