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1   ////////////////////////////////////////////////////////////////////////////////
2   // checkstyle: Checks Java source code for adherence to a set of rules.
3   // Copyright (C) 2001-2018 the original author or authors.
4   //
5   // This library is free software; you can redistribute it and/or
6   // modify it under the terms of the GNU Lesser General Public
7   // License as published by the Free Software Foundation; either
8   // version 2.1 of the License, or (at your option) any later version.
9   //
10  // This library is distributed in the hope that it will be useful,
11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  // Lesser General Public License for more details.
14  //
15  // You should have received a copy of the GNU Lesser General Public
16  // License along with this library; if not, write to the Free Software
17  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  ////////////////////////////////////////////////////////////////////////////////
19  
20  package com.puppycrawl.tools.checkstyle.filters;
21  
22  import java.util.Objects;
23  
24  /**
25   * This filter accepts an Integer in a range.
26   * @author Rick Giles
27   */
28  class IntRangeFilter implements IntFilter {
29  
30      /** Lower bound of the range. */
31      private final Integer lowerBound;
32  
33      /** Upper bound of the range. */
34      private final Integer upperBound;
35  
36      /**
37       * Constructs a {@code IntRangeFilter} with a
38       * lower bound and an upper bound for the range.
39       * @param lowerBound the lower bound of the range.
40       * @param upperBound the upper bound of the range.
41       */
42      IntRangeFilter(int lowerBound, int upperBound) {
43          this.lowerBound = lowerBound;
44          this.upperBound = upperBound;
45      }
46  
47      @Override
48      public boolean accept(int intValue) {
49          return lowerBound.compareTo(intValue) <= 0
50              && upperBound.compareTo(intValue) >= 0;
51      }
52  
53      @Override
54      public int hashCode() {
55          return Objects.hash(lowerBound, upperBound);
56      }
57  
58      @Override
59      public boolean equals(Object other) {
60          if (this == other) {
61              return true;
62          }
63          if (other == null || getClass() != other.getClass()) {
64              return false;
65          }
66          final IntRangeFilter intRangeFilter = (IntRangeFilter) other;
67          return Objects.equals(lowerBound, intRangeFilter.lowerBound)
68                  && Objects.equals(upperBound, intRangeFilter.upperBound);
69      }
70  
71  }