org.apache.hadoop.mapreduce.security.token

类 JobTokenSecretManager

java.lang.Object

org.apache.hadoop.security.token.SecretManager<JobTokenIdentifier>

org.apache.hadoop.mapreduce.security.token.JobTokenSecretManager

public class JobTokenSecretManager
extends SecretManager<JobTokenIdentifier>

SecretManager for job token. It can be used to cache generated job tokens.

嵌套类概要

从类继承的嵌套类/接口 org.apache.hadoop.security.token.SecretManager

SecretManager.InvalidToken

构造器概要

构造器

构造器和说明
JobTokenSecretManager() Default constructor

方法概要

方法

限定符和类型	方法和说明
void	addTokenForJob(String jobId, Token<JobTokenIdentifier> token) Add the job token of a job to cache
static byte[]	computeHash(byte[] msg, SecretKey key) Compute the HMAC hash of the message using the key
JobTokenIdentifier	createIdentifier() Create an empty job token identifier
byte[]	createPassword(JobTokenIdentifier identifier) Create a new password/secret for the given job token identifier.
static SecretKey	createSecretKey(byte[] key) Convert the byte[] to a secret key
void	removeTokenForJob(String jobId) Remove the cached job token of a job from cache
byte[]	retrievePassword(JobTokenIdentifier identifier) Look up the token password/secret for the given job token identifier.
SecretKey	retrieveTokenSecret(String jobId) Look up the token password/secret for the given jobId.

从类继承的方法 org.apache.hadoop.security.token.SecretManager

createPassword, generateSecret

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

JobTokenSecretManager

public JobTokenSecretManager()

Default constructor

方法详细资料

createSecretKey

public static SecretKey createSecretKey(byte[] key)

Convert the byte[] to a secret key

参数:

key - the byte[] to create the secret key from

返回:

the secret key

computeHash

public static byte[] computeHash(byte[] msg,
                 SecretKey key)

Compute the HMAC hash of the message using the key

参数:

msg - the message to hash

key - the key to use

返回:

the computed hash

createPassword

public byte[] createPassword(JobTokenIdentifier identifier)

Create a new password/secret for the given job token identifier.

指定者:

createPassword 在类中 SecretManager<JobTokenIdentifier>

参数:

identifier - the job token identifier

返回:

token password/secret

addTokenForJob

public void addTokenForJob(String jobId,
                  Token<JobTokenIdentifier> token)

Add the job token of a job to cache

参数:

jobId - the job that owns the token

token - the job token

removeTokenForJob

public void removeTokenForJob(String jobId)

Remove the cached job token of a job from cache

参数:

jobId - the job whose token is to be removed

retrieveTokenSecret

public SecretKey retrieveTokenSecret(String jobId)
                              throws SecretManager.InvalidToken

Look up the token password/secret for the given jobId.

参数:

jobId - the jobId to look up

返回:

token password/secret as SecretKey

抛出:

InvalidToken

SecretManager.InvalidToken

retrievePassword

public byte[] retrievePassword(JobTokenIdentifier identifier)
                        throws SecretManager.InvalidToken

Look up the token password/secret for the given job token identifier.

指定者:

retrievePassword 在类中 SecretManager<JobTokenIdentifier>

参数:

identifier - the job token identifier to look up

返回:

token password/secret as byte[]

抛出:

InvalidToken

SecretManager.InvalidToken

createIdentifier

public JobTokenIdentifier createIdentifier()

Create an empty job token identifier

指定者:

createIdentifier 在类中 SecretManager<JobTokenIdentifier>

返回:

a newly created empty job token identifier