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 */ 018 019package org.apache.commons.net.ftp; 020 021/** 022 * Implements some simple FTPFileFilter classes. 023 * @since 2.2 024 */ 025public class FTPFileFilters { 026 027 /** 028 * Accepts all FTPFile entries, including null. 029 */ 030 public static final FTPFileFilter ALL = new FTPFileFilter() { 031 @Override 032 public boolean accept(FTPFile file) { 033 return true; 034 } 035 }; 036 037 /** 038 * Accepts all non-null FTPFile entries. 039 */ 040 public static final FTPFileFilter NON_NULL = new FTPFileFilter() { 041 @Override 042 public boolean accept(FTPFile file) { 043 return file != null; 044 } 045 }; 046 047 /** 048 * Accepts all (non-null) FTPFile directory entries. 049 */ 050 public static final FTPFileFilter DIRECTORIES = new FTPFileFilter() { 051 @Override 052 public boolean accept(FTPFile file) { 053 return file != null && file.isDirectory(); 054 } 055 }; 056 057}