org.apache.hadoop.hbase.security.visibility

Class ZKVisibilityLabelWatcher

java.lang.Object

org.apache.hadoop.hbase.zookeeper.ZKListener

org.apache.hadoop.hbase.security.visibility.ZKVisibilityLabelWatcher

@InterfaceAudience.Private
public class ZKVisibilityLabelWatcher
extends org.apache.hadoop.hbase.zookeeper.ZKListener

A zk watcher that watches the labels table znode. This would create a znode /hbase/visibility_labels and will have a serialized form of a set of labels in the system.

Field Summary

Fields inherited from class org.apache.hadoop.hbase.zookeeper.ZKListener

watcher

Constructor Summary

Constructors

Constructor and Description
ZKVisibilityLabelWatcher(org.apache.hadoop.hbase.zookeeper.ZKWatcher watcher, VisibilityLabelsCache labelsCache, org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method and Description
void	nodeChildrenChanged(String path)
void	nodeCreated(String path)
void	nodeDataChanged(String path)
void	nodeDeleted(String path)
void	start()
void	writeToZookeeper(byte[] data, boolean labelsOrUserAuths) Write a labels mirror or user auths mirror into zookeeper

Methods inherited from class org.apache.hadoop.hbase.zookeeper.ZKListener

getWatcher

Methods inherited from class java.lang.Object

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

Constructor Detail

ZKVisibilityLabelWatcher

public ZKVisibilityLabelWatcher(org.apache.hadoop.hbase.zookeeper.ZKWatcher watcher,
                                VisibilityLabelsCache labelsCache,
                                org.apache.hadoop.conf.Configuration conf)

Method Detail

start

public void start()
           throws org.apache.zookeeper.KeeperException

Throws:

org.apache.zookeeper.KeeperException

nodeCreated

public void nodeCreated(String path)

Overrides:

nodeCreated in class org.apache.hadoop.hbase.zookeeper.ZKListener

nodeDeleted

public void nodeDeleted(String path)

Overrides:

nodeDeleted in class org.apache.hadoop.hbase.zookeeper.ZKListener

nodeDataChanged

public void nodeDataChanged(String path)

Overrides:

nodeDataChanged in class org.apache.hadoop.hbase.zookeeper.ZKListener

nodeChildrenChanged

public void nodeChildrenChanged(String path)

Overrides:

nodeChildrenChanged in class org.apache.hadoop.hbase.zookeeper.ZKListener

writeToZookeeper

public void writeToZookeeper(byte[] data,
                             boolean labelsOrUserAuths)

Write a labels mirror or user auths mirror into zookeeper

Parameters:

data -

labelsOrUserAuths - true for writing labels and false for user auths.