org.apache.hadoop.security.token

类 Token<T extends TokenIdentifier>

java.lang.Object

org.apache.hadoop.security.token.Token<T>

所有已实现的接口:

Writable

public class Token<T extends TokenIdentifier>
extends Object
implements Writable

The client-side form of the token.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	Token.TrivialRenewer A trivial renewer for token kinds that aren't managed.

字段概要

字段

限定符和类型	字段和说明
static org.apache.commons.logging.Log	LOG

构造器概要

构造器

构造器和说明
Token() Default constructor
Token(byte[] identifier, byte[] password, Text kind, Text service) Construct a token from the components.
Token(Token<T> other) Clone a token.
Token(T id, SecretManager<T> mgr) Construct a token given a token identifier and a secret manager for the type of the token identifier.

方法概要

方法

限定符和类型	方法和说明
void	cancel(Configuration conf) Cancel this delegation token
void	decodeFromUrlString(String newValue) Decode the given url safe string into this token.
String	encodeToUrlString() Encode this token as a url safe string
boolean	equals(Object right)
byte[]	getIdentifier() Get the token identifier
Text	getKind() Get the token kind
byte[]	getPassword() Get the token password/secret
Text	getService() Get the service on which the token is supposed to be used
int	hashCode()
boolean	isManaged() Is this token managed so that it can be renewed or cancelled?
void	readFields(DataInput in) Deserialize the fields of this object from in.
long	renew(Configuration conf) Renew this delegation token
void	setKind(Text newKind) Set the token kind.
void	setService(Text newService) Set the service on which the token is supposed to be used
String	toString()
void	write(DataOutput out) Serialize the fields of this object to out.

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

字段详细资料

LOG

public static final org.apache.commons.logging.Log LOG

构造器详细资料

Token

public Token(T id,
     SecretManager<T> mgr)

Construct a token given a token identifier and a secret manager for the type of the token identifier.

参数:

id - the token identifier

mgr - the secret manager

Token

public Token(byte[] identifier,
     byte[] password,
     Text kind,
     Text service)

Construct a token from the components.

参数:

identifier - the token identifier

password - the token's password

kind - the kind of token

service - the service for this token

Token

public Token()

Default constructor

Token

public Token(Token<T> other)

Clone a token.

参数:

other - the token to clone

方法详细资料

getIdentifier

public byte[] getIdentifier()

Get the token identifier

返回:

the token identifier

getPassword

public byte[] getPassword()

Get the token password/secret

返回:

the token password/secret

getKind

public Text getKind()

Get the token kind

返回:

the kind of the token

setKind

@InterfaceAudience.Private
public void setKind(Text newKind)

Set the token kind. This is only intended to be used by services that wrap another service's token, such as HFTP wrapping HDFS.

参数:

newKind -

getService

public Text getService()

Get the service on which the token is supposed to be used

返回:

the service name

setService

public void setService(Text newService)

Set the service on which the token is supposed to be used

参数:

newService - the service name

readFields

public void readFields(DataInput in)
                throws IOException

Deserialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

指定者:

readFields 在接口中 Writable

参数:

in - DataInput to deseriablize this object from.

抛出:

IOException

write

public void write(DataOutput out)
           throws IOException

Serialize the fields of this object to out.

指定者:

write 在接口中 Writable

参数:

out - DataOuput to serialize this object into.

抛出:

IOException

encodeToUrlString

public String encodeToUrlString()
                         throws IOException

Encode this token as a url safe string

返回:

the encoded string

抛出:

IOException

decodeFromUrlString

public void decodeFromUrlString(String newValue)
                         throws IOException

Decode the given url safe string into this token.

参数:

newValue - the encoded string

抛出:

IOException

equals

public boolean equals(Object right)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object

toString

public String toString()

覆盖:

toString 在类中 Object

isManaged

public boolean isManaged()
                  throws IOException

Is this token managed so that it can be renewed or cancelled?

返回:

true, if it can be renewed and cancelled.

抛出:

IOException

renew

public long renew(Configuration conf)
           throws IOException,
                  InterruptedException

Renew this delegation token

返回:

the new expiration time

抛出:

IOException

InterruptedException

cancel

public void cancel(Configuration conf)
            throws IOException,
                   InterruptedException

Cancel this delegation token

抛出:

IOException

InterruptedException