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 package org.apache.rat.analysis.matchers;
20
21 import java.util.Collection;
22
23 import org.apache.rat.analysis.IHeaderMatcher;
24
25 /**
26 * A matcher that performs a logical {@code AND} across all the contained matchers.
27 */
28 public class AndMatcher extends AbstractMatcherContainer {
29
30 /**
31 * Constructs the AndMatcher with the specified id and enclosed collection.
32 * @param id the to use. If null or an empty string a unique random id will be created.
33 * @param enclosed the enclosed collection.
34 */
35 public AndMatcher(String id, Collection<? extends IHeaderMatcher> enclosed) {
36 super(id, enclosed);
37 }
38
39 /**
40 * Constructs the AndMatcher with the a unique random id and the enclosed collection.
41 * @param enclosed the enclosed collection.
42 */
43 public AndMatcher(Collection<? extends IHeaderMatcher> enclosed) {
44 this(null, enclosed);
45 }
46
47 @Override
48 public State currentState() {
49 State dflt = State.t;
50 for (IHeaderMatcher matcher : enclosed) {
51 switch (matcher.currentState()) {
52 case f:
53 return State.f;
54 case i:
55 dflt = State.i;
56 break;
57 default:
58 // do nothing
59 break;
60 }
61 }
62 return dflt;
63 }
64
65 @Override
66 public State matches(String line) {
67 enclosed.stream().filter(x -> x.currentState() == State.i).forEach(x -> x.matches(line));
68 return currentState();
69 }
70
71 @Override
72 public State finalizeState() {
73 enclosed.forEach(IHeaderMatcher::finalizeState);
74 return currentState();
75 }
76 }