Package org.apache.hadoop.hdfs.server.datanode

Class DataStorage.VolumeBuilder

java.lang.Object

org.apache.hadoop.hdfs.server.datanode.DataStorage.VolumeBuilder

Enclosing class:

DataStorage

@Private
@Unstable
public static class DataStorage.VolumeBuilder
extends java.lang.Object

VolumeBuilder holds the metadata (e.g., the storage directories) of the prepared volume returned from DataStorage.prepareVolume(DataNode, StorageLocation, List). Calling build() to add the metadata to DataStorage so that this prepared volume can be active.

Constructor Summary

Constructors

Constructor	Description
VolumeBuilder(DataStorage storage, Storage.StorageDirectory sd)

Method Summary

Modifier and Type	Method	Description
void	build()	Add loaded metadata of a data volume to DataStorage.
Storage.StorageDirectory	getStorageDirectory()

Methods inherited from class java.lang.Object

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

Constructor Detail

VolumeBuilder

@VisibleForTesting
public VolumeBuilder(DataStorage storage,
                     Storage.StorageDirectory sd)

Method Detail

getStorageDirectory

public final Storage.StorageDirectory getStorageDirectory()

build

public void build()

Add loaded metadata of a data volume to DataStorage.