org.apache.hadoop.hbase.zookeeper

Class ZNodePaths

java.lang.Object

org.apache.hadoop.hbase.zookeeper.ZNodePaths

@InterfaceAudience.Private
public class ZNodePaths
extends Object

Class that hold all the paths of znode for HBase.

Field Summary

Fields

Modifier and Type	Field and Description
String	backupMasterAddressesZNode
String	balancerZNode
String	baseZNode
String	clusterIdZNode
String	clusterStateZNode
String	drainingZNode
String	hfileRefsZNode
String	masterAddressZNode
String	masterMaintZNode
static String	META_ZNODE_PREFIX
org.apache.hbase.thirdparty.com.google.common.collect.ImmutableMap<Integer,String>	metaReplicaZNodes
String	metaZNodePrefix
String	namespaceZNode
String	peersZNode
String	queuesZNode
String	regionNormalizerZNode
String	replicationZNode
String	rsZNode
String	splitLogZNode
String	switchZNode
String	tableLockZNode
String	tableZNode Deprecated.
static char	ZNODE_PATH_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
ZNodePaths(org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method and Description
int	getMetaReplicaIdFromZnode(String znode) Parse the meta replicaId from the passed znode
String	getZNodeForReplica(int replicaId) Get the znode string corresponding to a replicaId
boolean	isAnyMetaReplicaZNode(String node) Is the znode of any meta replica
boolean	isClientReadable(String node) Returns whether the znode is supposed to be readable by the client and DOES NOT contain sensitive information (world readable).
boolean	isDefaultMetaReplicaZnode(String znode) Is it the default meta replica's znode
static String	joinZNode(String prefix, String suffix) Join the prefix znode name with the suffix znode name to generate a proper full znode name.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

ZNODE_PATH_SEPARATOR

public static final char ZNODE_PATH_SEPARATOR

See Also:

Constant Field Values

META_ZNODE_PREFIX

public static final String META_ZNODE_PREFIX

See Also:

Constant Field Values

baseZNode

public final String baseZNode

metaZNodePrefix

public final String metaZNodePrefix

metaReplicaZNodes

public final org.apache.hbase.thirdparty.com.google.common.collect.ImmutableMap<Integer,String> metaReplicaZNodes

rsZNode

public final String rsZNode

drainingZNode

public final String drainingZNode

masterAddressZNode

public final String masterAddressZNode

backupMasterAddressesZNode

public final String backupMasterAddressesZNode

clusterStateZNode

public final String clusterStateZNode

tableZNode

@Deprecated
public final String tableZNode

Deprecated.

clusterIdZNode

public final String clusterIdZNode

splitLogZNode

public final String splitLogZNode

balancerZNode

public final String balancerZNode

regionNormalizerZNode

public final String regionNormalizerZNode

switchZNode

public final String switchZNode

tableLockZNode

public final String tableLockZNode

namespaceZNode

public final String namespaceZNode

masterMaintZNode

public final String masterMaintZNode

replicationZNode

public final String replicationZNode

peersZNode

public final String peersZNode

queuesZNode

public final String queuesZNode

hfileRefsZNode

public final String hfileRefsZNode

Constructor Detail

ZNodePaths

public ZNodePaths(org.apache.hadoop.conf.Configuration conf)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

isAnyMetaReplicaZNode

public boolean isAnyMetaReplicaZNode(String node)

Is the znode of any meta replica

Parameters:

node -

Returns:

true or false

getZNodeForReplica

public String getZNodeForReplica(int replicaId)

Get the znode string corresponding to a replicaId

Parameters:

replicaId -

Returns:

znode

getMetaReplicaIdFromZnode

public int getMetaReplicaIdFromZnode(String znode)

Parse the meta replicaId from the passed znode

Parameters:

znode - the name of the znode, does not include baseZNode

Returns:

replicaId

isDefaultMetaReplicaZnode

public boolean isDefaultMetaReplicaZnode(String znode)

Is it the default meta replica's znode

Parameters:

znode - the name of the znode, does not include baseZNode

Returns:

true or false

isClientReadable

public boolean isClientReadable(String node)

Returns whether the znode is supposed to be readable by the client and DOES NOT contain sensitive information (world readable).

joinZNode

public static String joinZNode(String prefix,
                               String suffix)

Join the prefix znode name with the suffix znode name to generate a proper full znode name.

Assumes prefix does not end with slash and suffix does not begin with it.

Parameters:

prefix - beginning of znode name

suffix - ending of znode name

Returns:

result of properly joining prefix with suffix