org.apache.hadoop.hdfs.server.namenode

Class INodeAttributeProvider

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.INodeAttributeProvider

@InterfaceAudience.Public
@InterfaceStability.Unstable
public abstract class INodeAttributeProvider
extends Object

Constructor Summary

Constructors

Constructor and Description
INodeAttributeProvider()

Method Summary

Methods

Modifier and Type	Method and Description
abstract org.apache.hadoop.hdfs.server.namenode.INodeAttributes	getAttributes(String[] pathElements, org.apache.hadoop.hdfs.server.namenode.INodeAttributes inode)
org.apache.hadoop.hdfs.server.namenode.INodeAttributes	getAttributes(String fullPath, org.apache.hadoop.hdfs.server.namenode.INodeAttributes inode)
org.apache.hadoop.hdfs.server.namenode.INodeAttributeProvider.AccessControlEnforcer	getExternalAccessControlEnforcer(org.apache.hadoop.hdfs.server.namenode.INodeAttributeProvider.AccessControlEnforcer defaultEnforcer) Can be over-ridden by implementations to provide a custom Access Control Enforcer that can provide an alternate implementation of the default permission checking logic.
abstract void	start() Initialize the provider.
abstract void	stop() Shutdown the provider.

Methods inherited from class java.lang.Object

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

Constructor Detail

INodeAttributeProvider

public INodeAttributeProvider()

Method Detail

start

public abstract void start()

Initialize the provider. This method is called at NameNode startup time.

stop

public abstract void stop()

Shutdown the provider. This method is called at NameNode shutdown time.

getAttributes

public org.apache.hadoop.hdfs.server.namenode.INodeAttributes getAttributes(String fullPath,
                                                                   org.apache.hadoop.hdfs.server.namenode.INodeAttributes inode)

getAttributes

public abstract org.apache.hadoop.hdfs.server.namenode.INodeAttributes getAttributes(String[] pathElements,
                                                                   org.apache.hadoop.hdfs.server.namenode.INodeAttributes inode)

getExternalAccessControlEnforcer

public org.apache.hadoop.hdfs.server.namenode.INodeAttributeProvider.AccessControlEnforcer getExternalAccessControlEnforcer(org.apache.hadoop.hdfs.server.namenode.INodeAttributeProvider.AccessControlEnforcer defaultEnforcer)

Can be over-ridden by implementations to provide a custom Access Control Enforcer that can provide an alternate implementation of the default permission checking logic.

Parameters:

defaultEnforcer - The Default AccessControlEnforcer

Returns:

The AccessControlEnforcer to use