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 */
18
19 package org.apache.commons.net.ftp;
20
21 /**
22 * Implements some simple FTPFileFilter classes.
23 * @since 2.2
24 */
25 public class FTPFileFilters {
26
27 /**
28 * Accepts all FTPFile entries, including null.
29 */
30 public static final FTPFileFilter ALL = new FTPFileFilter() {
31 @Override
32 public boolean accept(FTPFile file) {
33 return true;
34 }
35 };
36
37 /**
38 * Accepts all non-null FTPFile entries.
39 */
40 public static final FTPFileFilter NON_NULL = new FTPFileFilter() {
41 @Override
42 public boolean accept(FTPFile file) {
43 return file != null;
44 }
45 };
46
47 /**
48 * Accepts all (non-null) FTPFile directory entries.
49 */
50 public static final FTPFileFilter DIRECTORIES = new FTPFileFilter() {
51 @Override
52 public boolean accept(FTPFile file) {
53 return file != null && file.isDirectory();
54 }
55 };
56
57 }