/**
* When triggered, records an inactive task state change.
*
* @param change Event when a task changes state.
*/
@Subscribe
public void recordStateChange(TaskStateChange change) {
if (Tasks.isTerminated(change.getNewState())) {
long timeoutBasis =
change.isTransition()
? clock.nowMillis()
: Iterables.getLast(change.getTask().getTaskEvents()).getTimestamp();
registerInactiveTask(
Tasks.getJob(change.getTask()), change.getTaskId(), calculateTimeout(timeoutBasis));
}
}
@VisibleForTesting
long calculateTimeout(long taskEventTimestampMillis) {
return Math.max(
settings.minRetentionThresholdMillis,
settings.pruneThresholdMillis - Math.max(0, clock.nowMillis() - taskEventTimestampMillis));
}
@Override
public boolean apply(IScheduledTask task) {
return Tasks.getLatestEvent(task).getTimestamp()
<= clock.nowMillis() - settings.minRetentionThresholdMillis;
}