org.apache.hadoop.fs.azurebfs.oauth2

Class RefreshTokenBasedTokenProvider

java.lang.Object

org.apache.hadoop.fs.azurebfs.oauth2.AccessTokenProvider

org.apache.hadoop.fs.azurebfs.oauth2.RefreshTokenBasedTokenProvider

public class RefreshTokenBasedTokenProvider
extends AccessTokenProvider

Provides tokens based on refresh token.

Constructor Summary

Constructors

Constructor and Description
RefreshTokenBasedTokenProvider(String authEndpoint, String clientId, String refreshToken) Constructs a token provider based on the refresh token provided.

Method Summary

Modifier and Type	Method and Description
protected AzureADToken	refreshToken() the method to fetch the access token.

Methods inherited from class org.apache.hadoop.fs.azurebfs.oauth2.AccessTokenProvider

getToken, isTokenAboutToExpire

Methods inherited from class java.lang.Object

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

Constructor Detail

RefreshTokenBasedTokenProvider

public RefreshTokenBasedTokenProvider(String authEndpoint,
                                      String clientId,
                                      String refreshToken)

Constructs a token provider based on the refresh token provided.

Parameters:

clientId - the client ID (GUID) of the client web app obtained from Azure Active Directory configuration

refreshToken - the refresh token

Method Detail

refreshToken

protected AzureADToken refreshToken()
                             throws IOException

Description copied from class: AccessTokenProvider

the method to fetch the access token. Derived classes should override this method to actually get the token from Azure Active Directory. This method will be called initially, and then once when the token is about to expire.

Specified by:

refreshToken in class AccessTokenProvider

Returns:

AzureADToken containing the access token

Throws:

IOException - if there is an error fetching the token