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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.util;
20  
21  import org.apache.rat.analysis.IHeaderMatcher;
22  import org.apache.rat.analysis.RatHeaderAnalysisException;
23  import org.apache.rat.api.Document;
24  
25  import java.util.List;
26  
27  /**
28   * Delegates to an ordered set of matchers.
29   *
30   */
31  public final class HeaderMatcherMultiplexer implements IHeaderMatcher {
32  
33      private final List<IHeaderMatcher> matchers;
34  
35      public HeaderMatcherMultiplexer(final List<IHeaderMatcher> matchers) {
36          this.matchers = matchers;
37      }
38  
39      public boolean match(Document subject, String line) throws RatHeaderAnalysisException {
40          boolean result = false;
41          for (IHeaderMatcher matcher : matchers) {
42              result = matcher.match(subject, line);
43              if (result) {
44                  break;
45              }
46          }
47          return result;
48      }
49  
50      public void reset() {
51          for (IHeaderMatcher matcher : matchers) {
52              matcher.reset();
53          }
54      }
55  
56  }