com.knowgate.io.filefilter

Class SizeFileFilter

java.lang.Object

com.knowgate.io.filefilter.AbstractFileFilter

com.knowgate.io.filefilter.SizeFileFilter

All Implemented Interfaces:

IOFileFilter, FileFilter, FilenameFilter, Serializable

public class SizeFileFilter
extends AbstractFileFilter
implements Serializable

Filters files based on size, can filter either smaller files or files equal to or larger than a given threshold.

For example, to print all files and directories in the current directory whose size is greater than 1 MB:

 File dir = new File(".");
 String[] files = dir.list( new SizeFileFilter(1024 * 1024) );
 for ( int i = 0; i < files.length; i++ ) {
     System.out.println(files[i]);
 }
 

Since:

Commons IO 1.2

Version:

$Id: SizeFileFilter.java 591058 2007-11-01 15:47:05Z niallp $

Author:

Rahul Akolkar

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SizeFileFilter(long size) Constructs a new size file filter for files equal to or larger than a certain size.
SizeFileFilter(long size, boolean acceptLarger) Constructs a new size file filter for files based on a certain size threshold.

Method Summary

Modifier and Type	Method and Description
boolean	accept(File file) Checks to see if the size of the file is favorable.
String	toString() Provide a String representaion of this file filter.

Methods inherited from class com.knowgate.io.filefilter.AbstractFileFilter

accept

Methods inherited from class java.lang.Object

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

Constructor Detail

SizeFileFilter

public SizeFileFilter(long size)

Constructs a new size file filter for files equal to or larger than a certain size.

Parameters:

size - the threshold size of the files

Throws:

IllegalArgumentException - if the size is negative

SizeFileFilter

public SizeFileFilter(long size,
                      boolean acceptLarger)

Constructs a new size file filter for files based on a certain size threshold.

Parameters:

size - the threshold size of the files

acceptLarger - if true, files equal to or larger are accepted, otherwise smaller ones (but not equal to)

Throws:

IllegalArgumentException - if the size is negative

Method Detail

accept

public boolean accept(File file)

Checks to see if the size of the file is favorable.

If size equals threshold and smaller files are required, file IS NOT selected. If size equals threshold and larger files are required, file IS selected.

Specified by:

accept in interface IOFileFilter

Specified by:

accept in interface FileFilter

Overrides:

accept in class AbstractFileFilter

Parameters:

file - the File to check

Returns:

true if the filename matches

toString

public String toString()

Provide a String representaion of this file filter.

Overrides:

toString in class AbstractFileFilter

Returns:

a String representaion