Package org.apache.hadoop.yarn.server.utils

Class YarnServerSecurityUtils

java.lang.Object

org.apache.hadoop.yarn.server.utils.YarnServerSecurityUtils

@Private
public final class YarnServerSecurityUtils
extends java.lang.Object

Utility class that contains commonly used server methods.

Method Summary

Modifier and Type	Method	Description
static org.apache.hadoop.yarn.security.AMRMTokenIdentifier	authorizeRequest()	Authorizes the current request and returns the AMRMTokenIdentifier for the current application.
static org.apache.hadoop.security.Credentials	parseCredentials(org.apache.hadoop.yarn.api.records.ContainerLaunchContext launchContext)	Parses the container launch context and returns a Credential instance that contains all the tokens from the launch context.
static void	updateAMRMToken(org.apache.hadoop.yarn.api.records.Token token, org.apache.hadoop.security.UserGroupInformation user, org.apache.hadoop.conf.Configuration conf)	Update the new AMRMToken into the ugi used for RM proxy.

Methods inherited from class java.lang.Object

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

Method Detail

authorizeRequest

public static org.apache.hadoop.yarn.security.AMRMTokenIdentifier authorizeRequest()
                                                                            throws org.apache.hadoop.yarn.exceptions.YarnException

Authorizes the current request and returns the AMRMTokenIdentifier for the current application.

Returns:

the AMRMTokenIdentifier instance for the current user

Throws:

org.apache.hadoop.yarn.exceptions.YarnException - exceptions from yarn servers.

updateAMRMToken

public static void updateAMRMToken(org.apache.hadoop.yarn.api.records.Token token,
                                   org.apache.hadoop.security.UserGroupInformation user,
                                   org.apache.hadoop.conf.Configuration conf)

Update the new AMRMToken into the ugi used for RM proxy.

Parameters:

token - the new AMRMToken sent by RM

user - ugi used for RM proxy

conf - configuration

parseCredentials

public static org.apache.hadoop.security.Credentials parseCredentials(org.apache.hadoop.yarn.api.records.ContainerLaunchContext launchContext)
                                                               throws java.io.IOException

Parses the container launch context and returns a Credential instance that contains all the tokens from the launch context.

Parameters:

launchContext - ContainerLaunchContext.

Returns:

the credential instance

Throws:

java.io.IOException - if there are I/O errors.