@Override
public void handleEvent(EventContext context) {
timer.purge(); // Get rid of finished tasks
if (context instanceof GarbageCollectContext) {
GarbageCollectContext gcc = (GarbageCollectContext) context;
if (gcc.getDelay() > 0) {
final long delay = gcc.getDelay();
gcc.setDelay(0);
scheduleDGC(gcc, delay);
} else {
gcRunning = true;
collector.doGC(gcc.getType());
gcRunning = false;
// We want to let inline gc clean stuff up (quickly) before another young/full gc happens
garbageCollectionManager.scheduleInlineGarbageCollectionIfNecessary();
if (gcc instanceof PeriodicGarbageCollectContext) {
// Rearm and requeue if it's a periodic gc.
PeriodicGarbageCollectContext pgcc = (PeriodicGarbageCollectContext) gcc;
pgcc.reset();
gcSink.add(pgcc);
}
}
} else if (context instanceof InlineGCContext) {
garbageCollectionManager.inlineCleanup();
} else {
throw new AssertionError("Unknown context type: " + context.getClass().getName());
}
}
@Override
public synchronized void moveToPassiveStandbyState() {
if (state == ACTIVE_COORDINATOR) {
// TODO:: Support this later
throw new AssertionError(
"Cant move to " + PASSIVE_STANDBY + " from " + ACTIVE_COORDINATOR + " at least for now");
} else if (state != PASSIVE_STANDBY) {
stateChangeSink.add(new StateChangedEvent(state, PASSIVE_STANDBY));
state = PASSIVE_STANDBY;
info("Moved to " + state, true);
fireStateChangedOperatorEvent();
} else {
info("Already in " + state);
}
}
private synchronized void moveToActiveState() {
if (state == START_STATE || state == PASSIVE_STANDBY) {
// TODO :: If state == START_STATE publish cluster ID
debugInfo("Moving to active state");
StateChangedEvent event = new StateChangedEvent(state, ACTIVE_COORDINATOR);
state = ACTIVE_COORDINATOR;
setActiveNodeID(getLocalNodeID());
info("Becoming " + state, true);
fireStateChangedOperatorEvent();
electionMgr.declareWinner(this.activeNode);
stateChangeSink.add(event);
} else {
throw new AssertionError("Cant move to " + ACTIVE_COORDINATOR + " from " + state);
}
}
private synchronized void moveToPassiveState(Enrollment winningEnrollment) {
electionMgr.reset(winningEnrollment);
if (state == START_STATE) {
state = PASSIVE_UNINITIALIZED;
info("Moved to " + state, true);
fireStateChangedOperatorEvent();
stateChangeSink.add(new StateChangedEvent(START_STATE, state));
} else if (state == ACTIVE_COORDINATOR) {
// TODO:: Support this later
throw new AssertionError(
"Cant move to "
+ PASSIVE_UNINITIALIZED
+ " from "
+ ACTIVE_COORDINATOR
+ " at least for now");
} else {
debugInfo(
"Move to passive state ignored - state="
+ state
+ ", winningEnrollment: "
+ winningEnrollment);
}
}