public static boolean hasChildren(ClusterState clusterState, String path) throws Exception {
if (clusterState == null || path == null) {
return false;
}
List<String> children = clusterState.get_children(path, false);
return children != null && !children.isEmpty();
}
public static List<ZookeeperNode> listZKNodes(String clusterName, String parent) {
List<ZookeeperNode> nodes = new ArrayList<>();
try {
ClusterState clusterState = getAndCreateClusterState(clusterName);
if (clusterState == null) {
throw new IllegalStateException("Cluster state is null");
}
List<String> elements = clusterState.get_children(parent, false);
for (String element : elements) {
String path = PathUtils.normalize_path(parent + Cluster.ZK_SEPERATOR + element);
nodes.add(new ZookeeperNode(parent, element, hasChildren(clusterState, path)));
}
} catch (Exception e) {
LOG.error("Get zookeeper info error!", e);
}
return nodes;
}