org.apache.hadoop.yarn.security
Class ContainerTokenIdentifier

java.lang.Object
  org.apache.hadoop.security.token.TokenIdentifier
      org.apache.hadoop.yarn.security.ContainerTokenIdentifier

All Implemented Interfaces:

Writable

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class ContainerTokenIdentifier
extends org.apache.hadoop.security.token.TokenIdentifier

TokenIdentifier for a container. Encodes ContainerId, Resource needed by the container and the target NMs host-address.

Field Summary

static Text

KIND

Constructor Summary

ContainerTokenIdentifier()
Default constructor needed by RPC layer/SecretManager.

ContainerTokenIdentifier(ContainerId containerID, String hostName, String appSubmitter, Resource r, long expiryTimeStamp, int masterKeyId, long rmIdentifier)

Method Summary

String	getApplicationSubmitter()
ContainerId	getContainerID()
long	getExpiryTimeStamp()
Text	getKind() Get the token kind
int	getMasterKeyId()
String	getNmHostAddress()
Resource	getResource()
long	getRMIdentifer() Get the RMIdentifier of RM in which containers are allocated
org.apache.hadoop.security.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, getTrackingId

Methods inherited from class java.lang.Object

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

Field Detail

KIND

public static final Text KIND

Constructor Detail

ContainerTokenIdentifier

public ContainerTokenIdentifier(ContainerId containerID,
                                String hostName,
                                String appSubmitter,
                                Resource r,
                                long expiryTimeStamp,
                                int masterKeyId,
                                long rmIdentifier)

ContainerTokenIdentifier

public ContainerTokenIdentifier()

Default constructor needed by RPC layer/SecretManager.

Method Detail

getContainerID

public ContainerId getContainerID()

getApplicationSubmitter

public String getApplicationSubmitter()

getNmHostAddress

public String getNmHostAddress()

getResource

public Resource getResource()

getExpiryTimeStamp

public long getExpiryTimeStamp()

getMasterKeyId

public int getMasterKeyId()

getRMIdentifer

public long getRMIdentifer()

Get the RMIdentifier of RM in which containers are allocated

Returns:

RMIdentifier

write

public void write(DataOutput out)
           throws IOException

Description copied from interface: Writable

Serialize the fields of this object to out.

Parameters:

out - DataOuput to serialize this object into.

Throws:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

Description copied from interface: Writable

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

getKind

public Text getKind()

Description copied from class: org.apache.hadoop.security.token.TokenIdentifier

Get the token kind

Specified by:

getKind in class org.apache.hadoop.security.token.TokenIdentifier

Returns:

the kind of the token

getUser

public org.apache.hadoop.security.UserGroupInformation getUser()

Description copied from class: org.apache.hadoop.security.token.TokenIdentifier

Get the Ugi with the username encoded in the token identifier

Specified by:

getUser in class org.apache.hadoop.security.token.TokenIdentifier

Returns:

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