org.apache.hadoop.crypto.key
Interface KeyProviderDelegationTokenExtension.DelegationTokenExtension

All Superinterfaces:

KeyProviderExtension.Extension

Enclosing class:

KeyProviderDelegationTokenExtension

public static interface KeyProviderDelegationTokenExtension.DelegationTokenExtension
extends KeyProviderExtension.Extension

DelegationTokenExtension is a type of Extension that exposes methods to needed to work with Delegation Tokens.

Method Summary

org.apache.hadoop.security.token.Token<?>[]

addDelegationTokens(String renewer, org.apache.hadoop.security.Credentials credentials) The implementer of this class will take a renewer and add all delegation tokens associated with the renewer to the Credentials object if it is not already present,

Method Detail

addDelegationTokens

org.apache.hadoop.security.token.Token<?>[] addDelegationTokens(String renewer,
                                                                org.apache.hadoop.security.Credentials credentials)
                                                                throws IOException

The implementer of this class will take a renewer and add all delegation tokens associated with the renewer to the Credentials object if it is not already present,

Parameters:

renewer - the user allowed to renew the delegation tokens

credentials - cache in which to add new delegation tokens

Returns:

list of new delegation tokens

Throws:

IOException - thrown if IOException if an IO error occurs.