Package org.apache.hadoop.tools

Class CopyFilter

java.lang.Object

org.apache.hadoop.tools.CopyFilter

Direct Known Subclasses:

RegexCopyFilter, RegexpInConfigurationFilter, TrueCopyFilter

public abstract class CopyFilter
extends java.lang.Object

Interface for excluding files from DistCp.

Constructor Summary

Constructors

Constructor	Description
CopyFilter()

Method Summary

Modifier and Type	Method	Description
static CopyFilter	getCopyFilter(org.apache.hadoop.conf.Configuration conf)	Public factory method which returns the appropriate implementation of CopyFilter.
void	initialize()	Default initialize method does nothing.
abstract boolean	shouldCopy(org.apache.hadoop.fs.Path path)	Predicate to determine if a file can be excluded from copy.

Methods inherited from class java.lang.Object

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

Constructor Detail

CopyFilter

public CopyFilter()

Method Detail

initialize

public void initialize()

Default initialize method does nothing.

shouldCopy

public abstract boolean shouldCopy(org.apache.hadoop.fs.Path path)

Predicate to determine if a file can be excluded from copy.

Parameters:

path - a Path to be considered for copying

Returns:

boolean, true to copy, false to exclude

getCopyFilter

public static CopyFilter getCopyFilter(org.apache.hadoop.conf.Configuration conf)

Public factory method which returns the appropriate implementation of CopyFilter.

Parameters:

conf - DistCp configuration

Returns:

An instance of the appropriate CopyFilter