Package org.apache.hadoop.hbase.util

Class AbstractFileStatusFilter

java.lang.Object

org.apache.hadoop.hbase.util.AbstractFileStatusFilter

All Implemented Interfaces:

org.apache.hadoop.fs.PathFilter, FileStatusFilter

Direct Known Subclasses:

FSUtils.BlackListDirFilter, FSUtils.FamilyDirFilter, FSUtils.FileFilter, FSUtils.HFileFilter, FSUtils.ReferenceFileFilter, FSUtils.RegionDirFilter

@Private
@Evolving
public abstract class AbstractFileStatusFilter
extends Object
implements org.apache.hadoop.fs.PathFilter, FileStatusFilter

Typical base class for file status filter. Works more efficiently when filtering file statuses, otherwise implementation will need to lookup filestatus for the path which will be expensive.

Constructor Summary

Constructors

Constructor	Description
AbstractFileStatusFilter()

Method Summary

Modifier and Type	Method	Description
boolean	accept(org.apache.hadoop.fs.FileStatus f)	Tests whether or not the specified filestatus should be included in a filestatus list.
boolean	accept(org.apache.hadoop.fs.Path p)
protected abstract boolean	accept(org.apache.hadoop.fs.Path p, Boolean isDir)	Filters out a path.
protected boolean	isDirectory(org.apache.hadoop.fs.FileSystem fs, Boolean isDir, org.apache.hadoop.fs.Path p)
protected boolean	isFile(org.apache.hadoop.fs.FileSystem fs, Boolean isDir, org.apache.hadoop.fs.Path p)

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractFileStatusFilter

public AbstractFileStatusFilter()

Method Details

accept

protected abstract boolean accept(org.apache.hadoop.fs.Path p,
 @CheckForNull
 Boolean isDir)

Filters out a path. Can be given an optional directory hint to avoid filestatus lookup.

Parameters:

p - A filesystem path

isDir - An optional boolean indicating whether the path is a directory or not

Returns:

true if the path is accepted, false if the path is filtered out

accept

public boolean accept(org.apache.hadoop.fs.FileStatus f)

Description copied from interface: FileStatusFilter

Tests whether or not the specified filestatus should be included in a filestatus list.

Specified by:

accept in interface FileStatusFilter

Parameters:

f - The filestatus to be tested

Returns:

true if and only if the filestatus should be included

accept

public boolean accept(org.apache.hadoop.fs.Path p)

Specified by:

accept in interface org.apache.hadoop.fs.PathFilter

isFile

protected boolean isFile(org.apache.hadoop.fs.FileSystem fs,
 @CheckForNull
 Boolean isDir,
 org.apache.hadoop.fs.Path p)
                  throws IOException

Throws:

IOException

isDirectory

protected boolean isDirectory(org.apache.hadoop.fs.FileSystem fs,
 @CheckForNull
 Boolean isDir,
 org.apache.hadoop.fs.Path p)
                       throws IOException

Throws:

IOException