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

Class VolumeScannerCBInjector

java.lang.Object

org.apache.hadoop.hdfs.server.datanode.VolumeScannerCBInjector

@VisibleForTesting
@Private
public class VolumeScannerCBInjector
extends java.lang.Object

Used for injecting call backs in VolumeScanner and BlockScanner tests. Calls into this are a no-op in production code.

Constructor Summary

Constructors

Constructor	Description
VolumeScannerCBInjector()

Method Summary

Modifier and Type	Method	Description
static VolumeScannerCBInjector	get()
void	preSavingBlockIteratorTask(VolumeScanner volumeScanner)
static void	set(VolumeScannerCBInjector injector)
void	shutdownCallBack(VolumeScanner volumeScanner)
void	terminationCallBack(VolumeScanner volumeScanner)

Methods inherited from class java.lang.Object

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

Constructor Detail

VolumeScannerCBInjector

public VolumeScannerCBInjector()

Method Detail

get

public static VolumeScannerCBInjector get()

set

public static void set(VolumeScannerCBInjector injector)

preSavingBlockIteratorTask

public void preSavingBlockIteratorTask(VolumeScanner volumeScanner)

shutdownCallBack

public void shutdownCallBack(VolumeScanner volumeScanner)

terminationCallBack

public void terminationCallBack(VolumeScanner volumeScanner)