Package org.apache.hadoop.hdfs.server.balancer

Class KeyManager

java.lang.Object

org.apache.hadoop.hdfs.server.balancer.KeyManager

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, org.apache.hadoop.hdfs.protocol.datatransfer.sasl.DataEncryptionKeyFactory

@Private
public class KeyManager
extends java.lang.Object
implements java.io.Closeable, org.apache.hadoop.hdfs.protocol.datatransfer.sasl.DataEncryptionKeyFactory

The class provides utilities for key and token management.

Constructor Summary

Constructors

Constructor	Description
KeyManager(java.lang.String blockpoolID, NamenodeProtocol namenode, boolean encryptDataTransfer, org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method	Description
void	close()
org.apache.hadoop.security.token.Token<org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier>	getAccessToken(org.apache.hadoop.hdfs.protocol.ExtendedBlock eb, org.apache.hadoop.fs.StorageType[] storageTypes, java.lang.String[] storageIds)	Get an access token for a block.
org.apache.hadoop.hdfs.security.token.block.DataEncryptionKey	newDataEncryptionKey()
void	startBlockKeyUpdater()

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyManager

public KeyManager(java.lang.String blockpoolID,
                  NamenodeProtocol namenode,
                  boolean encryptDataTransfer,
                  org.apache.hadoop.conf.Configuration conf)
           throws java.io.IOException

Throws:

java.io.IOException

Method Detail

startBlockKeyUpdater

public void startBlockKeyUpdater()

getAccessToken

public org.apache.hadoop.security.token.Token<org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier> getAccessToken(org.apache.hadoop.hdfs.protocol.ExtendedBlock eb,
                                                                                                                               org.apache.hadoop.fs.StorageType[] storageTypes,
                                                                                                                               java.lang.String[] storageIds)
                                                                                                                        throws java.io.IOException

Get an access token for a block.

Throws:

java.io.IOException

newDataEncryptionKey

public org.apache.hadoop.hdfs.security.token.block.DataEncryptionKey newDataEncryptionKey()

Specified by:

newDataEncryptionKey in interface org.apache.hadoop.hdfs.protocol.datatransfer.sasl.DataEncryptionKeyFactory

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable