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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.maven.shared.dependency.analyzer;
20  
21  import java.util.Collection;
22  import java.util.Collections;
23  import java.util.regex.Pattern;
24  import java.util.stream.Collectors;
25  
26  /**
27   * Patterns for classes
28   */
29  public class ClassesPatterns {
30  
31      private final Collection<Pattern> patterns;
32  
33      /**
34       * Default constructor.
35       *
36       * @param patterns a patterns to mach
37       */
38      public ClassesPatterns(Collection<String> patterns) {
39          if (patterns == null) {
40              this.patterns = Collections.emptyList();
41          } else {
42              this.patterns = patterns.stream().map(Pattern::compile).collect(Collectors.toSet());
43          }
44      }
45  
46      public ClassesPatterns() {
47          this.patterns = Collections.emptySet();
48      }
49  
50      public boolean isMatch(String className) {
51          if (patterns.isEmpty()) {
52              return false;
53          }
54          return patterns.stream().anyMatch(pattern -> pattern.matcher(className).matches());
55      }
56  }