001 /*--------------------------------------------------------------------------+ 002 $Id: FileExtensionFilter.java 26283 2010-02-18 11:18:57Z juergens $ 003 | | 004 | Copyright 2005-2010 Technische Universitaet Muenchen | 005 | | 006 | Licensed under the Apache License, Version 2.0 (the "License"); | 007 | you may not use this file except in compliance with the License. | 008 | You may obtain a copy of the License at | 009 | | 010 | http://www.apache.org/licenses/LICENSE-2.0 | 011 | | 012 | Unless required by applicable law or agreed to in writing, software | 013 | distributed under the License is distributed on an "AS IS" BASIS, | 014 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 015 | See the License for the specific language governing permissions and | 016 | limitations under the License. | 017 +--------------------------------------------------------------------------*/ 018 package edu.tum.cs.commons.filesystem; 019 020 import java.io.File; 021 022 import edu.tum.cs.commons.string.StringUtils; 023 024 /** 025 * This is a file filter finding only "normal" files having one of the specified 026 * extensions. 027 * 028 * @author Benjamin Hummel 029 * @author Florian Deissenboeck 030 * @author $Author: juergens $ 031 * @version $Rev: 26283 $ 032 * @levd.rating GREEN Hash: 9F45801971F39E82A3241CF6B2E64CE6 033 */ 034 public class FileExtensionFilter extends FileOnlyFilter { 035 036 /** The extension to match. */ 037 private final String[] extensions; 038 039 /** 040 * Creates a new file extension filter. 041 * 042 * @param extensions 043 * the extension required by the files (without the dot). Note 044 * that using an empty string will not find all files without 045 * extension, but rather those ending in a single dot. 046 */ 047 public FileExtensionFilter(String... extensions) { 048 this.extensions = new String[extensions.length]; 049 for (int i = 0; i < extensions.length; i++) { 050 this.extensions[i] = "." + extensions[i]; 051 } 052 } 053 054 /** {@inheritDoc} */ 055 @Override 056 public boolean accept(File file) { 057 return super.accept(file) 058 && StringUtils.endsWithOneOf(file.getName(), extensions); 059 } 060 }