/**
* Checks of the Cachelet watcher has been triggered and will create/remove {@link CacheletZNode}s
* when necessary. <br>
* <br>
* Notifies any listeners if Cachelets are added or removed and updates any CacheletZNodes.
*
* @throws KeeperException
* @throws InterruptedException
*/
public void update() throws KeeperException, InterruptedException {
if (cacheletWatcher != null) {
if (cacheletWatcher.isDeleted()) {
return;
} else if (cacheletWatcher.isTriggered()) {
cacheletWatcher.reset();
updateCacheletMap(Nimbus.getZooKeeper().getChildren(cacheZNode, cacheletWatcher));
}
for (CacheletZNode node : cacheletMap.values()) {
node.update();
}
}
}
public CacheZNode(String cacheName) throws KeeperException, InterruptedException {
this.cacheName = cacheName;
cacheZNode = Nimbus.ROOT_ZNODE + "/" + this.cacheName;
cacheletWatcher = new ChildZNodeWatcher();
updateCacheletMap(Nimbus.getZooKeeper().getChildren(cacheZNode, cacheletWatcher));
}