org.ow2.weblab.crawler.filter
Class ExtensionFilter

java.lang.Object
  org.ow2.weblab.crawler.filter.ExtensionFilter

All Implemented Interfaces:

java.io.FileFilter

public class ExtensionFilter
extends java.lang.Object
implements java.io.FileFilter

Use this class when you need a FileFilter on file extension (.jpg, .txt, .mpeg, ...) If reject mode, given extensions are not rejected. Else, the extensions are the only accepted.

Author:

Jérémie Doucy, ymombrun

Field Summary

protected java.util.List<java.lang.String>	extensions The extensions to test.
protected boolean	rejectMode Whether extensions are the accepted ones or the rejected ones.

Constructor Summary

ExtensionFilter(java.util.List<java.lang.String> extentions, boolean rejectMode)
Create a file filter using extension

Method Summary

boolean	accept(java.io.File file)
static java.lang.String	getFileExtension(java.io.File file)

Methods inherited from class java.lang.Object

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

Field Detail

extensions

protected java.util.List<java.lang.String> extensions

The extensions to test.

rejectMode

protected boolean rejectMode

Whether extensions are the accepted ones or the rejected ones.

Constructor Detail

ExtensionFilter

public ExtensionFilter(java.util.List<java.lang.String> extentions,
                       boolean rejectMode)

Create a file filter using extension

Parameters:

extentions - The extensions to test.

rejectMode - Whether extensions are the accepted ones or the rejected ones.

Method Detail

accept

public boolean accept(java.io.File file)

Specified by:

accept in interface java.io.FileFilter

getFileExtension

public static java.lang.String getFileExtension(java.io.File file)

Parameters:

file - The file to extract extension.

Returns:

The extension of the file or the empty String if nothing is found.