org.apache.pulsar.zookeeper

Class ZkUtils

java.lang.Object

org.apache.pulsar.zookeeper.ZkUtils

public final class ZkUtils
extends Object

ZooKeeper utils.

Constructor Summary

Constructors

Constructor and Description
ZkUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	checkNodeAndWaitExpired(ZooKeeper zk, String path, long sessionTimeoutMs) Check if the provided path exists or not and wait it expired if possible.
static String	getParentForPath(String path) Returns the parent path of the provided path.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ZkUtils

public ZkUtils()

Method Detail

checkNodeAndWaitExpired

public static boolean checkNodeAndWaitExpired(ZooKeeper zk,
                                              String path,
                                              long sessionTimeoutMs)
                                       throws KeeperException,
                                              InterruptedException

Check if the provided path exists or not and wait it expired if possible.

Parameters:

zk - the zookeeper client instance

path - the zookeeper path

sessionTimeoutMs - session timeout in milliseconds

Returns:

true if path exists, otherwise return false

Throws:

KeeperException - when failed to access zookeeper

InterruptedException - interrupted when waiting for znode to be expired

getParentForPath

public static String getParentForPath(String path)

Returns the parent path of the provided path. Works for UNIX-style paths only and is intended to be used for zookeeper paths. If you have a file system path use Paths.get(String, String...) and Path.getParent() instead.

Parameters:

path - the zookeeper path

Returns:

the parent path or null if no parent exists