private void processBackgroundCallback(CuratorEvent event) throws Exception {
String path = null;
boolean nodeExists = false;
if (event.getResultCode() == KeeperException.Code.NODEEXISTS.intValue()) {
path = event.getPath();
nodeExists = true;
} else if (event.getResultCode() == KeeperException.Code.OK.intValue()) {
path = event.getName();
} else if (event.getResultCode() == KeeperException.Code.NOAUTH.intValue()) {
log.warn("Client does not have authorisation to write node at path {}", event.getPath());
authFailure.set(true);
return;
}
if (path != null) {
authFailure.set(false);
nodePath.set(path);
watchNode();
if (nodeExists) {
client.setData().inBackground(setDataCallback).forPath(getActualPath(), getData());
} else {
initialisationComplete();
}
} else {
createNode();
}
}
@Override
public void process(WatchedEvent event) throws Exception {
if (event.getType() == EventType.NodeDeleted) {
createNode();
} else if (event.getType() == EventType.NodeDataChanged) {
watchNode();
}
}
@Override
public void processResult(CuratorFramework client, CuratorEvent event) throws Exception {
if (event.getResultCode() == KeeperException.Code.NONODE.intValue()) {
createNode();
} else {
boolean isEphemeral = event.getStat().getEphemeralOwner() != 0;
if (isEphemeral != mode.isEphemeral()) {
log.warn(
"Existing node ephemeral state doesn't match requested state. Maybe the node was created outside of PersistentNode? "
+ basePath);
}
}
}
/**
* You must call start() to initiate the persistent node. An attempt to create the node in the
* background will be started
*/
public void start() {
Preconditions.checkState(state.compareAndSet(State.LATENT, State.STARTED), "Already started");
client.getConnectionStateListenable().addListener(connectionStateListener);
createNode();
}
@Override
public void stateChanged(CuratorFramework client, ConnectionState newState) {
if (newState == ConnectionState.RECONNECTED) {
createNode();
}
}