org.apache.hadoop.hdfs.web

Class WebHdfsFileSystem.DtRenewer

java.lang.Object

org.apache.hadoop.security.token.TokenRenewer

org.apache.hadoop.hdfs.web.WebHdfsFileSystem.DtRenewer

Enclosing class:

WebHdfsFileSystem

public static class WebHdfsFileSystem.DtRenewer
extends TokenRenewer

Delegation token renewer.

Constructor Summary

Constructors

Constructor and Description
WebHdfsFileSystem.DtRenewer()

Method Summary

Methods

Modifier and Type	Method and Description
void	cancel(Token<?> token, Configuration conf) Cancel the given token
boolean	handleKind(Text kind) Does this renewer handle this kind of token?
boolean	isManaged(Token<?> token) Is the given token managed? Only managed tokens may be renewed or cancelled.
long	renew(Token<?> token, Configuration conf) Renew the given token.

Methods inherited from class java.lang.Object

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

Constructor Detail

WebHdfsFileSystem.DtRenewer

public WebHdfsFileSystem.DtRenewer()

Method Detail

handleKind

public boolean handleKind(Text kind)

Description copied from class: TokenRenewer

Does this renewer handle this kind of token?

Specified by:

handleKind in class TokenRenewer

Parameters:

kind - the kind of the token

Returns:

true if this renewer can renew it

isManaged

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

Description copied from class: TokenRenewer

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

Specified by:

isManaged in class TokenRenewer

Parameters:

token - the token being checked

Returns:

true if the token may be renewed or cancelled

Throws:

IOException

renew

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

Description copied from class: TokenRenewer

Renew the given token.

Specified by:

renew in class TokenRenewer

Returns:

the new expiration time

Throws:

IOException

InterruptedException

cancel

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

Description copied from class: TokenRenewer

Cancel the given token

Specified by:

cancel in class TokenRenewer

Throws:

IOException

InterruptedException