org.apache.hadoop.mapreduce.security.token
Class JobTokenIdentifier

java.lang.Object
  org.apache.hadoop.security.token.TokenIdentifier
      org.apache.hadoop.mapreduce.security.token.JobTokenIdentifier

All Implemented Interfaces:

Writable

public class JobTokenIdentifier
extends TokenIdentifier

The token identifier for job token

Nested Class Summary

static class

JobTokenIdentifier.Renewer

Field Summary

static Text

KIND_NAME

Constructor Summary

JobTokenIdentifier()
Default constructor

JobTokenIdentifier(Text jobid)
Create a job token identifier from a jobid

Method Summary

Text	getJobId() Get the jobid
Text	getKind() Get the token kind
UserGroupInformation	getUser() Get the Ugi with the username encoded in the token identifier
void	readFields(DataInput in) Deserialize the fields of this object from in.
void	write(DataOutput out) Serialize the fields of this object to out.

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

getBytes

Methods inherited from class java.lang.Object

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

Field Detail

KIND_NAME

public static final Text KIND_NAME

Constructor Detail

JobTokenIdentifier

public JobTokenIdentifier()

Default constructor

JobTokenIdentifier

public JobTokenIdentifier(Text jobid)

Create a job token identifier from a jobid

Parameters:

jobid - the jobid to use

Method Detail

getKind

public Text getKind()

Get the token kind

Specified by:

getKind in class TokenIdentifier

Returns:

the kind of the token

getUser

public UserGroupInformation getUser()

Get the Ugi with the username encoded in the token identifier

Specified by:

getUser in class TokenIdentifier

Returns:

the username. null is returned if username in the identifier is empty or null.

getJobId

public Text getJobId()

Get the jobid

Returns:

the jobid

readFields

public void readFields(DataInput in)
                throws IOException

Deserialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

Parameters:

in - DataInput to deseriablize this object from.

Throws:

IOException

write

public void write(DataOutput out)
           throws IOException

Serialize the fields of this object to out.

Parameters:

out - DataOuput to serialize this object into.

Throws:

IOException