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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.regex.Pattern;
22  
23  /**
24   * A simple regular expression matching IHeaderMatcher
25   */
26  public class SimpleRegexMatcher extends AbstractSimpleMatcher {
27      private final Pattern pattern;
28  
29      /**
30       * Constructs a regex pattern matcher with a unique random id and the specified Regex pattern.
31       * @param pattern the pattern to match.  Pattern will only match a single line from the input stream.
32       */
33      public SimpleRegexMatcher(Pattern pattern) {
34          this(null, pattern);
35      }
36  
37      /**
38       * Constructs a regex pattern matcher with a unique random id and the specified Regex pattern.
39       * @param id the id for this matcher
40       * @param pattern the pattern to match.  Pattern will only match a single line from the input stream.
41       */
42      public SimpleRegexMatcher(String id, Pattern pattern) {
43          super(id);
44          this.pattern = pattern;
45      }
46  
47      @Override
48      public boolean doMatch(String line) {
49          return pattern.matcher(line).find();
50      }
51  }