private Set<Node> getNodes(LoadBalancer loadBalancer) {
    NodeApi nodeApi = clb.getNodeApiForZoneAndLoadBalancer(Constants.ZONE, loadBalancer.getId());
    Set<Node> nodes = Sets.newHashSet();

    for (Node node : nodeApi.list().concat()) {
      if (node.getAddress().startsWith("10.180.1")) {
        nodes.add(node);
      }
    }

    return nodes;
  }
  private void removeNodesFromLoadBalancer(Set<Node> nodes, LoadBalancer loadBalancer)
      throws TimeoutException {
    System.out.println("Remove Nodes");

    NodeApi nodeApi = clb.getNodeApiForZoneAndLoadBalancer(Constants.ZONE, loadBalancer.getId());
    Iterable<Integer> nodeIds = Iterables.transform(nodes, new NodeToInteger());

    nodeApi.remove(nodeIds);

    // Wait for the Load Balancer to become Active before moving on
    // If you want to know what's happening during the polling, enable logging. See
    // /jclouds-example/rackspace/src/main/java/org/jclouds/examples/rackspace/Logging.java
    if (!LoadBalancerPredicates.awaitAvailable(lbApi).apply(loadBalancer)) {
      throw new TimeoutException("Timeout on loadBalancer: " + loadBalancer);
    }

    System.out.println("  " + nodeIds);
  }