org.apache.accumulo.core.zookeeper
Class ZooUtil

java.lang.Object
  org.apache.accumulo.core.zookeeper.ZooUtil

public class ZooUtil
extends Object

Nested Class Summary

static class	ZooUtil.LockID
static class	ZooUtil.NodeExistsPolicy
static class	ZooUtil.NodeMissingPolicy

Field Summary

static List<org.apache.zookeeper.data.ACL>	PRIVATE
static List<org.apache.zookeeper.data.ACL>	PUBLIC

Constructor Summary

ZooUtil()

Method Summary

static boolean	exists(org.apache.zookeeper.ZooKeeper zk, String zPath)
static byte[]	getData(org.apache.zookeeper.ZooKeeper zk, String zPath, org.apache.zookeeper.data.Stat stat)
static byte[]	getLockData(ZooCache zc, String path)
static String	getRoot(Instance instance)
static String	getRoot(String instanceId)
static org.apache.zookeeper.data.Stat	getStatus(org.apache.zookeeper.ZooKeeper zk, String zPath)
static boolean	isLockHeld(org.apache.zookeeper.ZooKeeper zk, ZooUtil.LockID lid)
static String	putEphemeralData(org.apache.zookeeper.ZooKeeper zk, String zPath, byte[] data)
static String	putEphemeralSequential(org.apache.zookeeper.ZooKeeper zk, String zPath, byte[] data)
static boolean	putPersistentData(org.apache.zookeeper.ZooKeeper zk, String zPath, byte[] data, int version, ZooUtil.NodeExistsPolicy policy)
static boolean	putPersistentData(org.apache.zookeeper.ZooKeeper zk, String zPath, byte[] data, int version, ZooUtil.NodeExistsPolicy policy, List<org.apache.zookeeper.data.ACL> acls)
static boolean	putPersistentData(org.apache.zookeeper.ZooKeeper zk, String zPath, byte[] data, ZooUtil.NodeExistsPolicy policy) Create a persistent node with the default ACL
static String	putPersistentSequential(org.apache.zookeeper.ZooKeeper zk, String zPath, byte[] data)
static boolean	putPrivatePersistentData(org.apache.zookeeper.ZooKeeper zk, String zPath, byte[] data, ZooUtil.NodeExistsPolicy policy)
static void	recursiveCopyPersistent(org.apache.zookeeper.ZooKeeper zk, String source, String destination, ZooUtil.NodeExistsPolicy policy)
static void	recursiveDelete(org.apache.zookeeper.ZooKeeper zk, String zPath, int version, ZooUtil.NodeMissingPolicy policy) This method will delete a node and all its children from zookeeper
static void	recursiveDelete(org.apache.zookeeper.ZooKeeper zk, String zPath, ZooUtil.NodeMissingPolicy policy)

Methods inherited from class java.lang.Object

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

Field Detail

PRIVATE

public static final List<org.apache.zookeeper.data.ACL> PRIVATE

PUBLIC

public static final List<org.apache.zookeeper.data.ACL> PUBLIC

Constructor Detail

ZooUtil

public ZooUtil()

Method Detail

recursiveDelete

public static void recursiveDelete(org.apache.zookeeper.ZooKeeper zk,
                                   String zPath,
                                   int version,
                                   ZooUtil.NodeMissingPolicy policy)
                            throws org.apache.zookeeper.KeeperException,
                                   InterruptedException

This method will delete a node and all its children from zookeeper

Parameters:

zPath - the path to delete

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

recursiveDelete

public static void recursiveDelete(org.apache.zookeeper.ZooKeeper zk,
                                   String zPath,
                                   ZooUtil.NodeMissingPolicy policy)
                            throws org.apache.zookeeper.KeeperException,
                                   InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putPersistentData

public static boolean putPersistentData(org.apache.zookeeper.ZooKeeper zk,
                                        String zPath,
                                        byte[] data,
                                        ZooUtil.NodeExistsPolicy policy)
                                 throws org.apache.zookeeper.KeeperException,
                                        InterruptedException

Create a persistent node with the default ACL

Returns:

true if the node was created or altered; false if it was skipped

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putPersistentData

public static boolean putPersistentData(org.apache.zookeeper.ZooKeeper zk,
                                        String zPath,
                                        byte[] data,
                                        int version,
                                        ZooUtil.NodeExistsPolicy policy)
                                 throws org.apache.zookeeper.KeeperException,
                                        InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putPersistentData

public static boolean putPersistentData(org.apache.zookeeper.ZooKeeper zk,
                                        String zPath,
                                        byte[] data,
                                        int version,
                                        ZooUtil.NodeExistsPolicy policy,
                                        List<org.apache.zookeeper.data.ACL> acls)
                                 throws org.apache.zookeeper.KeeperException,
                                        InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

getData

public static byte[] getData(org.apache.zookeeper.ZooKeeper zk,
                             String zPath,
                             org.apache.zookeeper.data.Stat stat)
                      throws org.apache.zookeeper.KeeperException,
                             InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

getStatus

public static org.apache.zookeeper.data.Stat getStatus(org.apache.zookeeper.ZooKeeper zk,
                                                       String zPath)
                                                throws org.apache.zookeeper.KeeperException,
                                                       InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

exists

public static boolean exists(org.apache.zookeeper.ZooKeeper zk,
                             String zPath)
                      throws org.apache.zookeeper.KeeperException,
                             InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

recursiveCopyPersistent

public static void recursiveCopyPersistent(org.apache.zookeeper.ZooKeeper zk,
                                           String source,
                                           String destination,
                                           ZooUtil.NodeExistsPolicy policy)
                                    throws org.apache.zookeeper.KeeperException,
                                           InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

getRoot

public static String getRoot(Instance instance)

getRoot

public static String getRoot(String instanceId)

putPrivatePersistentData

public static boolean putPrivatePersistentData(org.apache.zookeeper.ZooKeeper zk,
                                               String zPath,
                                               byte[] data,
                                               ZooUtil.NodeExistsPolicy policy)
                                        throws org.apache.zookeeper.KeeperException,
                                               InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putPersistentSequential

public static String putPersistentSequential(org.apache.zookeeper.ZooKeeper zk,
                                             String zPath,
                                             byte[] data)
                                      throws org.apache.zookeeper.KeeperException,
                                             InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putEphemeralData

public static String putEphemeralData(org.apache.zookeeper.ZooKeeper zk,
                                      String zPath,
                                      byte[] data)
                               throws org.apache.zookeeper.KeeperException,
                                      InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putEphemeralSequential

public static String putEphemeralSequential(org.apache.zookeeper.ZooKeeper zk,
                                            String zPath,
                                            byte[] data)
                                     throws org.apache.zookeeper.KeeperException,
                                            InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

getLockData

public static byte[] getLockData(ZooCache zc,
                                 String path)

isLockHeld

public static boolean isLockHeld(org.apache.zookeeper.ZooKeeper zk,
                                 ZooUtil.LockID lid)
                          throws org.apache.zookeeper.KeeperException,
                                 InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException