org.apache.hadoop.yarn.security.client
Class ClientToAMTokenSecretManager

java.lang.Object
  org.apache.hadoop.security.token.SecretManager<ClientToAMTokenIdentifier>
      org.apache.hadoop.yarn.security.client.BaseClientToAMTokenSecretManager
          org.apache.hadoop.yarn.security.client.ClientToAMTokenSecretManager

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class ClientToAMTokenSecretManager
extends BaseClientToAMTokenSecretManager

A simple SecretManager for AMs to validate Client-RM tokens issued to clients by the RM using the underlying master-key shared by RM to the AMs on their launch. All the methods are called by either Hadoop RPC or YARN, so this class is strictly for the purpose of inherit/extend and register with Hadoop RPC.

Constructor Summary

ClientToAMTokenSecretManager(ApplicationAttemptId applicationAttemptID, byte[] key)

Method Summary

SecretKey	getMasterKey(ApplicationAttemptId applicationAttemptID)
byte[]	retrievePassword(ClientToAMTokenIdentifier identifier) Retrieve the password for the given token identifier.
void	setMasterKey(byte[] key)

Methods inherited from class org.apache.hadoop.security.token.SecretManager

checkAvailableForRead, createPassword, createSecretKey, generateSecret, retriableRetrievePassword

Methods inherited from class java.lang.Object

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

Constructor Detail

ClientToAMTokenSecretManager

public ClientToAMTokenSecretManager(ApplicationAttemptId applicationAttemptID,
                                    byte[] key)

Method Detail

retrievePassword

public byte[] retrievePassword(ClientToAMTokenIdentifier identifier)
                        throws org.apache.hadoop.security.token.SecretManager.InvalidToken

Description copied from class: org.apache.hadoop.security.token.SecretManager

Retrieve the password for the given token identifier. Should check the date or registry to make sure the token hasn't expired or been revoked. Returns the relevant password.

Parameters:

identifier - the identifier to validate

Returns:

the password to use

Throws:

org.apache.hadoop.security.token.SecretManager.InvalidToken - the token was invalid

getMasterKey

public SecretKey getMasterKey(ApplicationAttemptId applicationAttemptID)

setMasterKey

public void setMasterKey(byte[] key)