/**
* The utillib library.
* More information is available at http://www.jinchess.com/.
* Copyright (C) 2002 Alexander Maryanovsky.
* All rights reserved.
*
* The utillib library 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 2 of the
* License, or (at your option) any later version.
*
* The utillib library 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 utillib library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
import java.io.File;
import java.io.FilenameFilter;
/**
* An implementation of the <code>java.io.FilenameFilter</code> which accepts
* files whose name ends with a certain string. This makes it useful for
* accepting files with a certain extension.
*/
public class ExtensionFilenameFilter implements FilenameFilter{
/**
* The strings with one of which a file's name must end in order to pass the
* filter.
*/
private final String [] endStrings;
/**
* Creates a new ExtensionFilenameFilter with the given string. Only files
* ending with that string will be accepted. Note that in order to use this
* class to accept only files with a certain extension, you must also provide
* the '.' character before the extension. For example, to accept only 'txt'
* files, you must pass ".txt".
*/
public ExtensionFilenameFilter(String endString){
this(new String[]{endString});
}
/**
* Creates a new ExtensionFilenameFilter with the given string array. Only
* files ending with one of the strings in the given string array will be
* accepted by the created ExtensionFilenameFilter. Note that in order to use
* this class to accept only files with a certain extension, you must also
* provide the '.' character before the extension. For example, to accept
* only 'txt' files, you must pass ".txt".
*/
public ExtensionFilenameFilter(String [] endStrings){
this.endStrings = new String[endStrings.length];
for (int i=0;i<endStrings.length;i++){
this.endStrings[i] = endStrings[i];
}
}
/**
* Tests whether the specified file passes the filter. Returns true if the
* file's name ends with one of the string specified in the constructor.
*/
public boolean accept(File dir, String filename){
for (int i=0;i<endStrings.length;i++){
if (filename.endsWith(endStrings[i]))
return true;
}
return false;
}
}
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