1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.io.filefilter; 18 19 import java.io.File; 20 21 /** 22 * An abstract class which implements the Java FileFilter and FilenameFilter 23 * interfaces via the IOFileFilter interface. 24 * <p> 25 * Note that a subclass <b>must</b> override one of the accept methods, 26 * otherwise your class will infinitely loop. 27 * 28 * @since Commons IO 1.0 29 * @version $Revision: 539231 $ $Date: 2007-05-18 04:10:33 +0100 (Fri, 18 May 2007) $ 30 * 31 * @author Stephen Colebourne 32 */ 33 public abstract class AbstractFileFilter implements IOFileFilter { 34 35 /** 36 * Checks to see if the File should be accepted by this filter. 37 * 38 * @param file the File to check 39 * @return true if this file matches the test 40 */ accept(File file)41 public boolean accept(File file) { 42 return accept(file.getParentFile(), file.getName()); 43 } 44 45 /** 46 * Checks to see if the File should be accepted by this filter. 47 * 48 * @param dir the directory File to check 49 * @param name the filename within the directory to check 50 * @return true if this file matches the test 51 */ accept(File dir, String name)52 public boolean accept(File dir, String name) { 53 return accept(new File(dir, name)); 54 } 55 56 /** 57 * Provide a String representaion of this file filter. 58 * 59 * @return a String representaion 60 */ toString()61 public String toString() { 62 String name = getClass().getName(); 63 int period = name.lastIndexOf('.'); 64 return (period > 0 ? name.substring(period + 1) : name); 65 } 66 67 } 68