Package org.apache.hadoop.hbase.security.access

Class SnapshotScannerHDFSAclCleaner

java.lang.Object

org.apache.hadoop.hbase.BaseConfigurable

org.apache.hadoop.hbase.master.cleaner.BaseFileCleanerDelegate

org.apache.hadoop.hbase.master.cleaner.BaseHFileCleanerDelegate

org.apache.hadoop.hbase.security.access.SnapshotScannerHDFSAclCleaner

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, FileCleanerDelegate, Stoppable

@LimitedPrivate("Configuration")
@Evolving
public class SnapshotScannerHDFSAclCleaner
extends BaseHFileCleanerDelegate

Implementation of a file cleaner that checks if a empty directory with no subdirs and subfiles is deletable when user scan snapshot feature is enabled

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOG
private HMaster	master
private boolean	userScanSnapshotEnabled

Constructor Summary

Constructors

Constructor	Description
SnapshotScannerHDFSAclCleaner()

Method Summary

Modifier and Type	Method	Description
void	init(Map<String,Object> params)	this method is used to pass some instance into subclass
(package private) static boolean	isArchiveDataDir(org.apache.hadoop.fs.Path path)
(package private) static boolean	isArchiveNamespaceDir(org.apache.hadoop.fs.Path path)
(package private) static boolean	isArchiveTableDir(org.apache.hadoop.fs.Path path)
private boolean	isEmptyArchiveDirDeletable(org.apache.hadoop.fs.Path dir)
boolean	isEmptyDirDeletable(org.apache.hadoop.fs.Path dir)	Check if a empty directory with no subdirs or subfiles can be deleted
protected boolean	isFileDeletable(org.apache.hadoop.fs.FileStatus fStat)	Should the master delete the file or keep it?
private boolean	namespaceExists(String namespace)
void	setConf(org.apache.hadoop.conf.Configuration conf)
private boolean	tableExists(TableName tableName)

Methods inherited from class org.apache.hadoop.hbase.master.cleaner.BaseHFileCleanerDelegate

isStopped, stop

Methods inherited from class org.apache.hadoop.hbase.master.cleaner.BaseFileCleanerDelegate

getDeletableFiles

Methods inherited from class org.apache.hadoop.hbase.BaseConfigurable

getConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf

Methods inherited from interface org.apache.hadoop.hbase.master.cleaner.FileCleanerDelegate

postClean, preClean

Field Details

LOG

private static final org.slf4j.Logger LOG

master

private HMaster master

userScanSnapshotEnabled

private boolean userScanSnapshotEnabled

Constructor Details

SnapshotScannerHDFSAclCleaner

public SnapshotScannerHDFSAclCleaner()

Method Details

init

public void init(Map<String,Object> params)

Description copied from interface: FileCleanerDelegate

this method is used to pass some instance into subclass

Specified by:

init in interface FileCleanerDelegate

Overrides:

init in class BaseFileCleanerDelegate

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

Overrides:

setConf in class BaseConfigurable

isFileDeletable

protected boolean isFileDeletable(org.apache.hadoop.fs.FileStatus fStat)

Description copied from class: BaseFileCleanerDelegate

Should the master delete the file or keep it?

Specified by:

isFileDeletable in class BaseFileCleanerDelegate

Parameters:

fStat - file status of the file to check

Returns:

true if the file is deletable, false if not

isEmptyDirDeletable

public boolean isEmptyDirDeletable(org.apache.hadoop.fs.Path dir)

Description copied from interface: FileCleanerDelegate

Check if a empty directory with no subdirs or subfiles can be deleted

Parameters:

dir - Path of the directory

Returns:

True if the directory can be deleted, otherwise false

isEmptyArchiveDirDeletable

private boolean isEmptyArchiveDirDeletable(org.apache.hadoop.fs.Path dir)

isArchiveDataDir

@Private
static boolean isArchiveDataDir(org.apache.hadoop.fs.Path path)

isArchiveNamespaceDir

@Private
static boolean isArchiveNamespaceDir(org.apache.hadoop.fs.Path path)

isArchiveTableDir

@Private
static boolean isArchiveTableDir(org.apache.hadoop.fs.Path path)

namespaceExists

private boolean namespaceExists(String namespace)
                         throws IOException

Throws:

IOException

tableExists

private boolean tableExists(TableName tableName)
                     throws IOException

Throws:

IOException