/*
* Copyright (C) 2012, Katy Hilgenberg.
* Special acknowledgments to: Knowledge & Data Engineering Group, University of Kassel (http://www.kde.cs.uni-kassel.de).
* Contact: sdcf@cs.uni-kassel.de
*
* This file is part of the SDCFramework (Sensor Data Collection Framework) project.
*
* The SDCFramework is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The SDCFramework is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SDCFramework. If not, see <http://www.gnu.org/licenses/>.
*/
package de.unikassel.android.sdcframework.util;
import java.io.File;
import java.io.FilenameFilter;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* A file name filter using a matcher for regular filename expressions.
*
* @author Katy Hilgenberg
*
*/
public class FileMatcherFilter implements FilenameFilter
{
/**
* The pattern.
*/
private final Pattern pattern;
/**
* Constructor
*
* @param pattern
*/
public FileMatcherFilter( String pattern )
{
super();
this.pattern =
Pattern.compile( pattern, Pattern.UNICODE_CASE
| Pattern.CASE_INSENSITIVE );
}
/*
* (non-Javadoc)
*
* @see java.io.FilenameFilter#accept(java.io.File, java.lang.String)
*/
@Override
public boolean accept( File dir, String name )
{
if ( new File( dir, name ).isDirectory() ) return true;
Matcher m = pattern.matcher( name );
return m.find();
}
}