org.apache.hadoop.hbase.security.token

Class TokenUtil

java.lang.Object

org.apache.hadoop.hbase.security.token.TokenUtil

@InterfaceAudience.Public
public class TokenUtil
extends Object

Utility methods for obtaining authentication tokens.

Constructor Summary

Constructors

Constructor and Description
TokenUtil()

Method Summary

Modifier and Type	Method and Description
static void	addTokenForJob(Connection conn, org.apache.hadoop.mapred.JobConf job, User user) Checks for an authentication token for the given user, obtaining a new token if necessary, and adds it to the credentials for the given map reduce job.
static void	addTokenForJob(Connection conn, User user, org.apache.hadoop.mapreduce.Job job) Checks for an authentication token for the given user, obtaining a new token if necessary, and adds it to the credentials for the given map reduce job.
static boolean	addTokenIfMissing(Connection conn, User user) Checks if an authentication tokens exists for the connected cluster, obtaining one if needed and adding it to the user's credentials.
static void	obtainAndCacheToken(Connection conn, User user) Obtain an authentication token for the given user and add it to the user's credentials.
static org.apache.hadoop.security.token.Token<AuthenticationTokenIdentifier>	obtainToken(Connection conn) Obtain and return an authentication token for the current user.
static org.apache.hadoop.security.token.Token<AuthenticationTokenIdentifier>	obtainToken(Connection conn, User user) Obtain and return an authentication token for the current user.
static void	obtainTokenForJob(Connection conn, org.apache.hadoop.mapred.JobConf job, User user) Obtain an authentication token on behalf of the given user and add it to the credentials for the given map reduce job.
static void	obtainTokenForJob(Connection conn, User user, org.apache.hadoop.mapreduce.Job job) Obtain an authentication token on behalf of the given user and add it to the credentials for the given map reduce job.
static org.apache.hadoop.security.token.Token<AuthenticationTokenIdentifier>	toToken(AuthenticationProtos.Token proto) Converts a protobuf Token message back into a Token instance.
static AuthenticationProtos.Token	toToken(org.apache.hadoop.security.token.Token<AuthenticationTokenIdentifier> token) Converts a Token instance (with embedded identifier) to the protobuf representation.

Methods inherited from class java.lang.Object

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

Constructor Detail

TokenUtil

public TokenUtil()

Method Detail

obtainToken

public static org.apache.hadoop.security.token.Token<AuthenticationTokenIdentifier> obtainToken(Connection conn)
                                                                                         throws IOException

Obtain and return an authentication token for the current user.

Parameters:

conn - The HBase cluster connection

Returns:

the authentication token instance

Throws:

IOException - if a remote error or serialization problem occurs.

toToken

public static AuthenticationProtos.Token toToken(org.apache.hadoop.security.token.Token<AuthenticationTokenIdentifier> token)

Converts a Token instance (with embedded identifier) to the protobuf representation.

Parameters:

token - the Token instance to copy

Returns:

the protobuf Token message

obtainToken

public static org.apache.hadoop.security.token.Token<AuthenticationTokenIdentifier> obtainToken(Connection conn,
                                                                                                User user)
                                                                                         throws IOException,
                                                                                                InterruptedException

Obtain and return an authentication token for the current user.

Parameters:

conn - The HBase cluster connection

Returns:

the authentication token instance

Throws:

IOException

InterruptedException

obtainAndCacheToken

public static void obtainAndCacheToken(Connection conn,
                                       User user)
                                throws IOException,
                                       InterruptedException

Obtain an authentication token for the given user and add it to the user's credentials.

Parameters:

conn - The HBase cluster connection

user - The user for whom to obtain the token

Throws:

IOException - If making a remote call to the authentication service fails

InterruptedException - If executing as the given user is interrupted

obtainTokenForJob

public static void obtainTokenForJob(Connection conn,
                                     User user,
                                     org.apache.hadoop.mapreduce.Job job)
                              throws IOException,
                                     InterruptedException

Obtain an authentication token on behalf of the given user and add it to the credentials for the given map reduce job.

Parameters:

conn - The HBase cluster connection

user - The user for whom to obtain the token

job - The job instance in which the token should be stored

Throws:

IOException - If making a remote call to the authentication service fails

InterruptedException - If executing as the given user is interrupted

obtainTokenForJob

public static void obtainTokenForJob(Connection conn,
                                     org.apache.hadoop.mapred.JobConf job,
                                     User user)
                              throws IOException,
                                     InterruptedException

Obtain an authentication token on behalf of the given user and add it to the credentials for the given map reduce job.

Parameters:

conn - The HBase cluster connection

user - The user for whom to obtain the token

job - The job configuration in which the token should be stored

Throws:

IOException - If making a remote call to the authentication service fails

InterruptedException - If executing as the given user is interrupted

addTokenForJob

public static void addTokenForJob(Connection conn,
                                  org.apache.hadoop.mapred.JobConf job,
                                  User user)
                           throws IOException,
                                  InterruptedException

Checks for an authentication token for the given user, obtaining a new token if necessary, and adds it to the credentials for the given map reduce job.

Parameters:

conn - The HBase cluster connection

user - The user for whom to obtain the token

job - The job configuration in which the token should be stored

Throws:

IOException - If making a remote call to the authentication service fails

InterruptedException - If executing as the given user is interrupted

addTokenForJob

public static void addTokenForJob(Connection conn,
                                  User user,
                                  org.apache.hadoop.mapreduce.Job job)
                           throws IOException,
                                  InterruptedException

Checks for an authentication token for the given user, obtaining a new token if necessary, and adds it to the credentials for the given map reduce job.

Parameters:

conn - The HBase cluster connection

user - The user for whom to obtain the token

job - The job instance in which the token should be stored

Throws:

IOException - If making a remote call to the authentication service fails

InterruptedException - If executing as the given user is interrupted

addTokenIfMissing

public static boolean addTokenIfMissing(Connection conn,
                                        User user)
                                 throws IOException,
                                        InterruptedException

Checks if an authentication tokens exists for the connected cluster, obtaining one if needed and adding it to the user's credentials.

Parameters:

conn - The HBase cluster connection

user - The user for whom to obtain the token

Returns:

true if the token was added, false if it already existed

Throws:

IOException - If making a remote call to the authentication service fails

InterruptedException - If executing as the given user is interrupted

toToken

public static org.apache.hadoop.security.token.Token<AuthenticationTokenIdentifier> toToken(AuthenticationProtos.Token proto)

Converts a protobuf Token message back into a Token instance.

Parameters:

proto - the protobuf Token message

Returns:

the Token instance