org.apache.accumulo.fate.zookeeper

Class ZooReaderWriter

java.lang.Object

org.apache.accumulo.fate.zookeeper.ZooReader

org.apache.accumulo.fate.zookeeper.ZooReaderWriter

All Implemented Interfaces:

IZooReader, IZooReaderWriter

public class ZooReaderWriter
extends ZooReader
implements IZooReaderWriter

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ZooReaderWriter.Mutator

Field Summary

Fields inherited from class org.apache.accumulo.fate.zookeeper.ZooReader

keepers, timeout

Constructor Summary

Constructors

Constructor and Description
ZooReaderWriter(String string, int timeInMillis, String scheme, byte[] auth)

Method Summary

Methods

Modifier and Type	Method and Description
void	delete(String path, int version)
static ZooReaderWriter	getInstance(String zookeepers, int timeInMillis, String scheme, byte[] auth)
static IZooReaderWriter	getRetryingInstance(String zookeepers, int timeInMillis, String scheme, byte[] auth) get an instance that retries when zookeeper connection errors occur
org.apache.zookeeper.ZooKeeper	getZooKeeper()
boolean	isLockHeld(ZooUtil.LockID lockID)
void	mkdirs(String path)
byte[]	mutate(String zPath, byte[] createValue, List<org.apache.zookeeper.data.ACL> acl, ZooReaderWriter.Mutator mutator)
String	putEphemeralData(String zPath, byte[] data)
String	putEphemeralSequential(String zPath, byte[] data)
void	putPersistentData(String zPath, byte[] data, int version, ZooUtil.NodeExistsPolicy policy)
boolean	putPersistentData(String zPath, byte[] data, ZooUtil.NodeExistsPolicy policy) Create a persistent node with the default ACL
String	putPersistentSequential(String zPath, byte[] data)
boolean	putPrivatePersistentData(String zPath, byte[] data, ZooUtil.NodeExistsPolicy policy)
void	recursiveCopyPersistent(String source, String destination, ZooUtil.NodeExistsPolicy policy)
void	recursiveDelete(String zPath, int version, ZooUtil.NodeMissingPolicy policy)
void	recursiveDelete(String zPath, ZooUtil.NodeMissingPolicy policy)

Methods inherited from class org.apache.accumulo.fate.zookeeper.ZooReader

exists, exists, getChildren, getChildren, getData, getSession, getStatus, getStatus, sync

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.accumulo.fate.zookeeper.IZooReaderWriter

sync

Methods inherited from interface org.apache.accumulo.fate.zookeeper.IZooReader

exists, exists, getChildren, getChildren, getData, getStatus, getStatus

Constructor Detail

ZooReaderWriter

public ZooReaderWriter(String string,
               int timeInMillis,
               String scheme,
               byte[] auth)

Method Detail

getZooKeeper

public org.apache.zookeeper.ZooKeeper getZooKeeper()

Specified by:

getZooKeeper in interface IZooReaderWriter

Overrides:

getZooKeeper in class ZooReader

recursiveDelete

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

Specified by:

recursiveDelete in interface IZooReaderWriter

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

recursiveDelete

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

Specified by:

recursiveDelete in interface IZooReaderWriter

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putPersistentData

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

Create a persistent node with the default ACL

Specified by:

putPersistentData in interface IZooReaderWriter

Returns:

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

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putPrivatePersistentData

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

Specified by:

putPrivatePersistentData in interface IZooReaderWriter

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putPersistentData

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

Specified by:

putPersistentData in interface IZooReaderWriter

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putPersistentSequential

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

Specified by:

putPersistentSequential in interface IZooReaderWriter

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putEphemeralData

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

Specified by:

putEphemeralData in interface IZooReaderWriter

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

putEphemeralSequential

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

Specified by:

putEphemeralSequential in interface IZooReaderWriter

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

recursiveCopyPersistent

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

Specified by:

recursiveCopyPersistent in interface IZooReaderWriter

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

delete

public void delete(String path,
          int version)
            throws InterruptedException,
                   org.apache.zookeeper.KeeperException

Specified by:

delete in interface IZooReaderWriter

Throws:

InterruptedException

org.apache.zookeeper.KeeperException

mutate

public byte[] mutate(String zPath,
            byte[] createValue,
            List<org.apache.zookeeper.data.ACL> acl,
            ZooReaderWriter.Mutator mutator)
              throws Exception

Specified by:

mutate in interface IZooReaderWriter

Throws:

Exception

getInstance

public static ZooReaderWriter getInstance(String zookeepers,
                          int timeInMillis,
                          String scheme,
                          byte[] auth)

getRetryingInstance

public static IZooReaderWriter getRetryingInstance(String zookeepers,
                                   int timeInMillis,
                                   String scheme,
                                   byte[] auth)

get an instance that retries when zookeeper connection errors occur

Returns:

an instance that retries when Zookeeper connection errors occur.

isLockHeld

public boolean isLockHeld(ZooUtil.LockID lockID)
                   throws org.apache.zookeeper.KeeperException,
                          InterruptedException

Specified by:

isLockHeld in interface IZooReaderWriter

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

mkdirs

public void mkdirs(String path)
            throws org.apache.zookeeper.KeeperException,
                   InterruptedException

Specified by:

mkdirs in interface IZooReaderWriter

Throws:

org.apache.zookeeper.KeeperException

InterruptedException