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org.lilyproject.util.zookeeper.ZooKeeperItf.exists()方法的使用及代码示例

转载 作者:知者 更新时间:2024-03-14 20:52:49 26 4
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本文整理了Java中org.lilyproject.util.zookeeper.ZooKeeperItf.exists()方法的一些代码示例,展示了ZooKeeperItf.exists()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。ZooKeeperItf.exists()方法的具体详情如下:
包路径:org.lilyproject.util.zookeeper.ZooKeeperItf
类名称:ZooKeeperItf
方法名:exists

ZooKeeperItf.exists介绍

暂无

代码示例

代码示例来源:origin: NGDATA/lilyproject

@Override
  public Stat execute() throws KeeperException, InterruptedException {
    return zk.exists(childPath, false);
  }
});

代码示例来源:origin: NGDATA/lilyproject

@Override
  public Boolean execute() throws KeeperException, InterruptedException {
    return zk.exists("/lily", false) != null;
  }
});

代码示例来源:origin: NGDATA/lilyproject

@Override
  public Stat execute() throws KeeperException, InterruptedException {
    return zk.exists(pathToWatch, watcher);
  }
});

代码示例来源:origin: NGDATA/lilyproject

@Override
public void exists(String path, Watcher watcher, StatCallback cb, Object ctx) {
  wrapped.exists(path, watcher, cb, ctx);
}

代码示例来源:origin: NGDATA/lilyproject

@Override
public void exists(String path, boolean watch, StatCallback cb, Object ctx) {
  wrapped.exists(path, watch, cb, ctx);
}

代码示例来源:origin: NGDATA/lilyproject

@Override
public Stat exists(String path, Watcher watcher) throws KeeperException, InterruptedException {
  return wrapped.exists(path, watcher);
}

代码示例来源:origin: NGDATA/lilyproject

@Override
public Stat exists(String path, boolean watch) throws KeeperException, InterruptedException {
  return wrapped.exists(path, watch);
}

代码示例来源:origin: NGDATA/lilyproject

private void watchPathsForExistence() throws InterruptedException {
  for (String path : EXISTENCE_PATHS) {
    try {
      zooKeeper.exists(path, true);
    } catch (KeeperException e) {
      if (Thread.currentThread().isInterrupted()) {
        if (log.isDebugEnabled()) {
          log.debug("Failed to put existence watcher on " + path + " : thread is interrupted");
        }
      } else {
        log.warn("Failed to put existence watcher on " + path, e);
      }
    }
  }
}

代码示例来源:origin: NGDATA/lilyproject

@Override
  public Boolean execute() throws KeeperException, InterruptedException {
    if (zk.exists(subPath.toString(), false) == null) {
      try {
        zk.create(subPath.toString(), newData, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
        return true;
      } catch (KeeperException.NodeExistsException e) {
        return false;
      }
    }
    return false;
  }
});

代码示例来源:origin: NGDATA/lilyproject

@Override
  public Boolean execute() throws KeeperException, InterruptedException {
    Stat stat = zk.exists(path, false);
    if (stat != null) {
      try {
        zk.delete(path, stat.getVersion());
      } catch (KeeperException.NoNodeException nne) {
        // This is ok, the node is already gone
      }
      // We don't catch BadVersion or NotEmpty as these are probably signs that there is something
      // unexpected going on with the node that is to be deleted
    }
    return true;
  }
});

代码示例来源:origin: NGDATA/lilyproject

Stat stat = zk.exists(electionPath + "/" + leader, false);

代码示例来源:origin: NGDATA/lilyproject

Stat stat = zk.exists(nodesPath, true);
if (stat == null) {
  if (log.isInfoEnabled()) {

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