Package org.apache.accumulo.fate.zookeeper

Class ZooUtil

java.lang.Object

org.apache.accumulo.fate.zookeeper.ZooUtil

public class ZooUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ZooUtil.LockID
static class	ZooUtil.NodeExistsPolicy
static class	ZooUtil.NodeMissingPolicy
protected static class	ZooUtil.ZooKeeperConnectionInfo

Field Summary

Fields

Modifier and Type	Field	Description
static Retry.RetryFactory	DEFAULT_RETRY
static List<org.apache.zookeeper.data.ACL>	PRIVATE
static List<org.apache.zookeeper.data.ACL>	PUBLIC

Constructor Summary

Constructors

Constructor	Description
ZooUtil()

Method Summary

Modifier and Type	Method	Description
static boolean	exists(ZooUtil.ZooKeeperConnectionInfo info, String zPath)
static List<org.apache.zookeeper.data.ACL>	getACL(org.apache.zookeeper.ZooKeeper zk, String zPath, org.apache.zookeeper.data.Stat stat)
static byte[]	getData(ZooUtil.ZooKeeperConnectionInfo info, String zPath, org.apache.zookeeper.data.Stat stat)
static String	getInstanceIDFromHdfs(org.apache.hadoop.fs.Path instanceDirectory, AccumuloConfiguration conf, org.apache.hadoop.conf.Configuration hadoopConf)
static byte[]	getLockData(ZooCache zc, String path)
static String	getRoot(String instanceId)
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

DEFAULT_RETRY

public static final Retry.RetryFactory DEFAULT_RETRY

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

getACL

public static List<org.apache.zookeeper.data.ACL> getACL(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

getRoot

public static String getRoot(String instanceId)

getInstanceIDFromHdfs

public static String getInstanceIDFromHdfs(org.apache.hadoop.fs.Path instanceDirectory,
                                           AccumuloConfiguration conf,
                                           org.apache.hadoop.conf.Configuration hadoopConf)