1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one *
3 * or more contributor license agreements. See the NOTICE file *
4 * distributed with this work for additional information *
5 * regarding copyright ownership. The ASF licenses this file *
6 * to you under the Apache License, Version 2.0 (the *
7 * "License"); you may not use this file except in compliance *
8 * with the License. You may obtain a copy of the License at *
9 * *
10 * http://www.apache.org/licenses/LICENSE-2.0 *
11 * *
12 * Unless required by applicable law or agreed to in writing, *
13 * software distributed under the License is distributed on an *
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
15 * KIND, either express or implied. See the License for the *
16 * specific language governing permissions and limitations *
17 * under the License. *
18 */
19
20 package org.apache.rat.walker;
21
22 import org.apache.rat.report.IReportable;
23
24 import java.io.File;
25 import java.io.FilenameFilter;
26 import java.util.regex.Pattern;
27
28 /**
29 * Abstract walker.
30 */
31 public abstract class Walker implements IReportable {
32
33 protected final File file;
34 protected final String name;
35
36 protected final FilenameFilter filter;
37
38 protected static FilenameFilter regexFilter(final Pattern pattern) {
39 return (dir, name) -> {
40 final boolean result;
41 if (pattern == null) {
42 result = true;
43 } else {
44 result = !pattern.matcher(name).matches();
45 }
46 return result;
47 };
48 }
49
50 protected final boolean isNotIgnored(final File file) {
51 boolean result = false;
52 if (filter != null) {
53 final String name = file.getName();
54 final File dir = file.getParentFile();
55 result = !filter.accept(dir, name);
56 }
57 return !result;
58 }
59
60 public Walker(File file, final FilenameFilter filter) {
61 this(file.getPath(), file, filter);
62 }
63
64 protected Walker(final String name, final File file, final FilenameFilter filter) {
65 this.name = name;
66 this.file = file;
67 this.filter = filter;
68 }
69
70 }