Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
CSVFilter |
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| 2.0;2 |
1 | //////////////////////////////////////////////////////////////////////////////// | |
2 | // checkstyle: Checks Java source code for adherence to a set of rules. | |
3 | // Copyright (C) 2001-2014 Oliver Burn | |
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 | package com.puppycrawl.tools.checkstyle.filters; | |
20 | ||
21 | import com.google.common.collect.Sets; | |
22 | import java.util.Set; | |
23 | import java.util.StringTokenizer; | |
24 | ||
25 | /** | |
26 | * <p> | |
27 | * This filter accepts an integer that matches a CSV value, where | |
28 | * each value is an integer or a range of integers. | |
29 | * </p> | |
30 | * @author Rick Giles | |
31 | * @author o_sukhodolsky | |
32 | */ | |
33 | class CSVFilter implements IntFilter | |
34 | { | |
35 | /** filter set */ | |
36 | 27 | private final Set<IntFilter> mFilters = Sets.newHashSet(); |
37 | ||
38 | /** | |
39 | * Adds a IntFilter to the set. | |
40 | * @param aFilter the IntFilter to add. | |
41 | */ | |
42 | public void addFilter(IntFilter aFilter) | |
43 | { | |
44 | 41 | mFilters.add(aFilter); |
45 | 41 | } |
46 | ||
47 | /** | |
48 | * Returns the IntFilters of the filter set. | |
49 | * @return the IntFilters of the filter set. | |
50 | */ | |
51 | protected Set<IntFilter> getFilters() | |
52 | { | |
53 | 33 | return mFilters; |
54 | } | |
55 | ||
56 | /** | |
57 | * Constructs a <code>CSVFilter</code> from a CSV, Comma-Separated Values, | |
58 | * string. Each value is an integer, or a range of integers. A range of | |
59 | * integers is of the form integer-integer, such as 1-10. | |
60 | * Note: integers must be non-negative. | |
61 | * @param aPattern the CSV string. | |
62 | * @throws NumberFormatException if a component substring does not | |
63 | * contain a parsable integer. | |
64 | */ | |
65 | public CSVFilter(String aPattern) | |
66 | throws NumberFormatException | |
67 | 27 | { |
68 | 27 | final StringTokenizer tokenizer = new StringTokenizer(aPattern, ","); |
69 | 64 | while (tokenizer.hasMoreTokens()) { |
70 | 38 | final String token = tokenizer.nextToken().trim(); |
71 | 38 | final int index = token.indexOf("-"); |
72 | 38 | if (index == -1) { |
73 | 19 | final int matchValue = Integer.parseInt(token); |
74 | 18 | addFilter(new IntMatchFilter(matchValue)); |
75 | 18 | } |
76 | else { | |
77 | 19 | final int lowerBound = |
78 | Integer.parseInt(token.substring(0, index)); | |
79 | 19 | final int upperBound = |
80 | Integer.parseInt(token.substring(index + 1)); | |
81 | 19 | addFilter(new IntRangeFilter(lowerBound, upperBound)); |
82 | } | |
83 | 37 | } |
84 | 26 | } |
85 | ||
86 | /** | |
87 | * Determines whether an Integer matches a CSV integer value. | |
88 | * @param aInt the Integer to check. | |
89 | * @return true if aInt is an Integer that matches a CSV value. | |
90 | */ | |
91 | public boolean accept(int aInt) | |
92 | { | |
93 | 33 | for (IntFilter filter : getFilters()) { |
94 | 41 | if (filter.accept(aInt)) { |
95 | 16 | return true; |
96 | } | |
97 | } | |
98 | 17 | return false; |
99 | } | |
100 | ||
101 | @Override | |
102 | public String toString() | |
103 | { | |
104 | 0 | return mFilters.toString(); |
105 | } | |
106 | ||
107 | @Override | |
108 | public int hashCode() | |
109 | { | |
110 | 0 | return mFilters.hashCode(); |
111 | } | |
112 | ||
113 | @Override | |
114 | public boolean equals(Object aObject) | |
115 | { | |
116 | 12 | if (aObject instanceof CSVFilter) { |
117 | 9 | final CSVFilter other = (CSVFilter) aObject; |
118 | 9 | return this.mFilters.equals(other.mFilters); |
119 | } | |
120 | 3 | return false; |
121 | } | |
122 | } |