public void process(WatchedEvent event) {
LOGGER.debug(
"Watcher fired on path: "
+ event.getPath()
+ " state: "
+ event.getState()
+ " type "
+ event.getType());
latchIfNoChange.countDown();
// ignore any children except valid children for a queue
if (keyHandler.hasValidName(ZkUtils.getPathEnd(event.getPath()))) {
if (highestPriorityChanged == null) {
highestPriorityChanged = keyHandler.getPriority(event.getPath());
} else {
synchronized (highestPriorityChanged) {
PRIORITY changedPriority = keyHandler.getPriority(event.getPath());
if (changedPriority != null && changedPriority.compareTo(highestPriorityChanged) < 0) {
highestPriorityChanged = changedPriority;
}
}
}
}
}
public boolean hasChangedHigherThan(PRIORITY priority) {
return highestPriorityChanged != null && highestPriorityChanged.compareTo(priority) < 0;
}