org.apache.hadoop.security.token

类 TokenRenewer

java.lang.Object

org.apache.hadoop.security.token.TokenRenewer

直接已知子类:

DFSClient.Renewer, HftpFileSystem.TokenManager, JobClient.Renewer, Token.TrivialRenewer, WebHdfsFileSystem.DtRenewer

public abstract class TokenRenewer
extends Object

This is the interface for plugins that handle tokens.

构造器概要

构造器

构造器和说明
TokenRenewer()

方法概要

方法

限定符和类型	方法和说明
abstract void	cancel(Token<?> token, Configuration conf) Cancel the given token
abstract boolean	handleKind(Text kind) Does this renewer handle this kind of token?
abstract boolean	isManaged(Token<?> token) Is the given token managed?
abstract long	renew(Token<?> token, Configuration conf) Renew the given token.

从类继承的方法 java.lang.Object

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

构造器详细资料

TokenRenewer

public TokenRenewer()

方法详细资料

handleKind

public abstract boolean handleKind(Text kind)

Does this renewer handle this kind of token?

参数:

kind - the kind of the token

返回:

true if this renewer can renew it

isManaged

public abstract boolean isManaged(Token<?> token)
                           throws IOException

Is the given token managed? Only managed tokens may be renewed or cancelled.

参数:

token - the token being checked

返回:

true if the token may be renewed or cancelled

抛出:

IOException

renew

public abstract long renew(Token<?> token,
         Configuration conf)
                    throws IOException,
                           InterruptedException

Renew the given token.

返回:

the new expiration time

抛出:

IOException

InterruptedException

cancel

public abstract void cancel(Token<?> token,
          Configuration conf)
                     throws IOException,
                            InterruptedException

Cancel the given token

抛出:

IOException

InterruptedException