001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018package org.apache.commons.io.filefilter; 019 020import java.io.File; 021import java.nio.file.FileVisitResult; 022import java.nio.file.Path; 023import java.nio.file.attribute.BasicFileAttributes; 024import java.util.Objects; 025 026/** 027 * Accepts only an exact {@link File} object match. You can use this filter to visit the start directory when walking a 028 * file tree with 029 * {@link java.nio.file.Files#walkFileTree(java.nio.file.Path, java.util.Set, int, java.nio.file.FileVisitor)}. 030 * 031 * @since 2.9.0 032 */ 033public class FileEqualsFileFilter extends AbstractFileFilter { 034 035 private final File file; 036 private final Path path; 037 038 /** 039 * Constructs a new instance for the given {@link File}. 040 * 041 * @param file The file to match. 042 */ 043 public FileEqualsFileFilter(final File file) { 044 this.file = Objects.requireNonNull(file, "file"); 045 this.path = file.toPath(); 046 } 047 048 @Override 049 public boolean accept(final File file) { 050 return Objects.equals(this.file, file); 051 } 052 053 @Override 054 public FileVisitResult accept(final Path path, final BasicFileAttributes attributes) { 055 return toFileVisitResult(Objects.equals(this.path, path)); 056 } 057}