org.apache.hadoop.security.token
Class TokenIdentifier

java.lang.Object
  org.apache.hadoop.security.token.TokenIdentifier

All Implemented Interfaces:

Writable

Direct Known Subclasses:

AbstractDelegationTokenIdentifier, JobTokenIdentifier

public abstract class TokenIdentifier
extends Object
implements Writable

An identifier that identifies a token, may contain public information about a token, including its kind (or type).

Constructor Summary

TokenIdentifier()

Method Summary

byte[]	getBytes() Get the bytes for the token identifier
abstract Text	getKind() Get the token kind
abstract UserGroupInformation	getUser() Get the Ugi with the username encoded in the token identifier

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.io.Writable

readFields, write

Constructor Detail

TokenIdentifier

public TokenIdentifier()

Method Detail

getKind

public abstract Text getKind()

Get the token kind

Returns:

the kind of the token

getUser

public abstract UserGroupInformation getUser()

Get the Ugi with the username encoded in the token identifier

Returns:

the username. null is returned if username in the identifier is empty or null.

getBytes

public byte[] getBytes()

Get the bytes for the token identifier

Returns:

the bytes of the identifier