Package org.apache.hadoop.hdfs.server.federation.resolver

Class RemoteLocation

java.lang.Object

org.apache.hadoop.hdfs.server.federation.router.RemoteLocationContext

org.apache.hadoop.hdfs.server.federation.resolver.RemoteLocation

All Implemented Interfaces:

java.lang.Comparable<RemoteLocationContext>

public class RemoteLocation
extends RemoteLocationContext

A location in a remote namespace consisting of a nameservice ID and a HDFS path (destination). It also contains the federated location (source).

Constructor Summary

Constructors

Constructor	Description
RemoteLocation(java.lang.String nsId, java.lang.String dPath, java.lang.String sPath)	Create a new remote location.
RemoteLocation(java.lang.String nsId, java.lang.String nnId, java.lang.String dPath, java.lang.String sPath)	Create a new remote location pointing to a particular namenode in the namespace.
RemoteLocation(RemoteLocation remoteLocation, java.lang.String path)	Use the Ns and Nn of a remote location and another path to create a new remote location pointing.

Method Summary

Modifier and Type	Method	Description
java.lang.String	getDest()	Destination in this location.
java.lang.String	getNameserviceId()	Returns an identifier for a unique namespace.
java.lang.String	getSrc()	Original source location.
java.lang.String	toString()

Methods inherited from class org.apache.hadoop.hdfs.server.federation.router.RemoteLocationContext

compareTo, equals, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RemoteLocation

public RemoteLocation(java.lang.String nsId,
                      java.lang.String dPath,
                      java.lang.String sPath)

Create a new remote location.

Parameters:

nsId - Destination namespace.

dPath - Path in the destination namespace.

sPath - Path in the federated level.

RemoteLocation

public RemoteLocation(java.lang.String nsId,
                      java.lang.String nnId,
                      java.lang.String dPath,
                      java.lang.String sPath)

Create a new remote location pointing to a particular namenode in the namespace.

Parameters:

nsId - Destination namespace.

nnId - Destination namenode.

dPath - Path in the destination namespace.

sPath - Path in the federated level

RemoteLocation

public RemoteLocation(RemoteLocation remoteLocation,
                      java.lang.String path)

Use the Ns and Nn of a remote location and another path to create a new remote location pointing.

Parameters:

remoteLocation - A remoteLocation.

path - Path in the destination namespace.

Method Detail

getNameserviceId

public java.lang.String getNameserviceId()

Description copied from class: RemoteLocationContext

Returns an identifier for a unique namespace.

Specified by:

getNameserviceId in class RemoteLocationContext

Returns:

Namespace identifier.

getDest

public java.lang.String getDest()

Description copied from class: RemoteLocationContext

Destination in this location. For example the path in a remote namespace.

Specified by:

getDest in class RemoteLocationContext

Returns:

Destination in this location.

getSrc

public java.lang.String getSrc()

Description copied from class: RemoteLocationContext

Original source location.

Specified by:

getSrc in class RemoteLocationContext

Returns:

Source path.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object