public static String createIfAbsent(ZooKeeper zk, String path, byte[] data, CreateMode createMode, boolean gc)
throws KeeperException, InterruptedException {
String pathCreated = null;
try {
pathCreated = zk.create(path, data, Ids.OPEN_ACL_UNSAFE, createMode);
} catch (NodeExistsException e) {
LOG.debug("Create skipped for existing znode: path={}", path);
}
if (gc && (pathCreated == null) && CreateMode.EPHEMERAL.equals(createMode)) {
Stat stat = zk.exists(path, false);
if (stat != null && zk.getSessionId() != stat.getEphemeralOwner()) {
deleteIfExists(zk, path, -1);
pathCreated = zk.create(path, data, Ids.OPEN_ACL_UNSAFE, createMode);
}
}
return pathCreated;
}