org.apache.accumulo.fate.zookeeper
Class ZooUtil

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

public class ZooUtil
extends Object

Nested Class Summary

static class	ZooUtil.LockID
static class	ZooUtil.NodeExistsPolicy
static class	ZooUtil.NodeMissingPolicy
protected static class	ZooUtil.ZooKeeperConnectionInfo

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(ZooUtil.ZooKeeperConnectionInfo info, String zPath)
static byte[]	getData(ZooUtil.ZooKeeperConnectionInfo info, String zPath, org.apache.zookeeper.data.Stat stat)
static byte[]	getLockData(ZooCache zc, String path)
static org.apache.zookeeper.data.Stat	getStatus(ZooUtil.ZooKeeperConnectionInfo info, String zPath)
protected static org.apache.zookeeper.ZooKeeper	getZooKeeper(String keepers, int timeout, String scheme, byte[] auth)
protected static org.apache.zookeeper.ZooKeeper	getZooKeeper(ZooUtil.ZooKeeperConnectionInfo info)
static boolean	isLockHeld(ZooUtil.ZooKeeperConnectionInfo info, ZooUtil.LockID lid)
static String	putEphemeralData(ZooUtil.ZooKeeperConnectionInfo info, String zPath, byte[] data)
static String	putEphemeralSequential(ZooUtil.ZooKeeperConnectionInfo info, String zPath, byte[] data)
static boolean	putPersistentData(ZooUtil.ZooKeeperConnectionInfo info, String zPath, byte[] data, int version, ZooUtil.NodeExistsPolicy policy)
static boolean	putPersistentData(ZooUtil.ZooKeeperConnectionInfo info, String zPath, byte[] data, int version, ZooUtil.NodeExistsPolicy policy, List<org.apache.zookeeper.data.ACL> acls)
static boolean	putPersistentData(ZooUtil.ZooKeeperConnectionInfo info, String zPath, byte[] data, ZooUtil.NodeExistsPolicy policy) Create a persistent node with the default ACL
static String	putPersistentSequential(ZooUtil.ZooKeeperConnectionInfo info, String zPath, byte[] data)
static boolean	putPrivatePersistentData(ZooUtil.ZooKeeperConnectionInfo info, String zPath, byte[] data, ZooUtil.NodeExistsPolicy policy)
static void	recursiveCopyPersistent(ZooUtil.ZooKeeperConnectionInfo info, String source, String destination, ZooUtil.NodeExistsPolicy policy)
protected static void	retryOrThrow(Retry retry, org.apache.zookeeper.KeeperException e)

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

getZooKeeper

protected static org.apache.zookeeper.ZooKeeper getZooKeeper(ZooUtil.ZooKeeperConnectionInfo info)

getZooKeeper

protected static org.apache.zookeeper.ZooKeeper getZooKeeper(String keepers,
                                                             int timeout,
                                                             String scheme,
                                                             byte[] auth)

retryOrThrow

protected static void retryOrThrow(Retry retry,
                                   org.apache.zookeeper.KeeperException e)
                            throws org.apache.zookeeper.KeeperException

Throws:

org.apache.zookeeper.KeeperException

putPersistentData

public static boolean putPersistentData(ZooUtil.ZooKeeperConnectionInfo info,
                                        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(ZooUtil.ZooKeeperConnectionInfo info,
                                        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(ZooUtil.ZooKeeperConnectionInfo info,
                                        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(ZooUtil.ZooKeeperConnectionInfo info,
                             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(ZooUtil.ZooKeeperConnectionInfo info,
                                                       String zPath)
                                                throws org.apache.zookeeper.KeeperException,
                                                       InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

exists

public static boolean exists(ZooUtil.ZooKeeperConnectionInfo info,
                             String zPath)
                      throws org.apache.zookeeper.KeeperException,
                             InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

recursiveCopyPersistent

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

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putPrivatePersistentData

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

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putPersistentSequential

public static String putPersistentSequential(ZooUtil.ZooKeeperConnectionInfo info,
                                             String zPath,
                                             byte[] data)
                                      throws org.apache.zookeeper.KeeperException,
                                             InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putEphemeralData

public static String putEphemeralData(ZooUtil.ZooKeeperConnectionInfo info,
                                      String zPath,
                                      byte[] data)
                               throws org.apache.zookeeper.KeeperException,
                                      InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putEphemeralSequential

public static String putEphemeralSequential(ZooUtil.ZooKeeperConnectionInfo info,
                                            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(ZooUtil.ZooKeeperConnectionInfo info,
                                 ZooUtil.LockID lid)
                          throws org.apache.zookeeper.KeeperException,
                                 InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException