public ZookeeperPrefixChildFilter(ZookeeperEphemeralPrefixGenerator prefixGenerator)
  {
    _prefixGenerator = prefixGenerator;
  }
@Test(dataProvider = "prefixFilterDataProvider")
  public void testZookeeperPrefixChildFilter(String hostName, List<String> children, List<String> expectedFilteredChildren)
  {
    ZookeeperPrefixChildFilter filter = new ZookeeperPrefixChildFilter(new AnnouncerHostPrefixGenerator(hostName));
    List<String> actualFilteredChildren = filter.filter(children);
    Assert.assertEquals(actualFilteredChildren, expectedFilteredChildren);
  }