Class | Line # | Actions | |||
---|---|---|---|---|---|
SetUtils | 25 | 14 | 7 |
1 | /* | |
2 | * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$) | |
3 | * Copyright (C) $$Year-Rel$$ The Jalview Authors | |
4 | * | |
5 | * This file is part of Jalview. | |
6 | * | |
7 | * Jalview is free software: you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation, either version 3 | |
10 | * of the License, or (at your option) any later version. | |
11 | * | |
12 | * Jalview is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty | |
14 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR | |
15 | * PURPOSE. See the GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with Jalview. If not, see <http://www.gnu.org/licenses/>. | |
19 | * The Jalview Authors are detailed in the 'AUTHORS' file. | |
20 | */ | |
21 | package jalview.util; | |
22 | ||
23 | import java.util.Set; | |
24 | ||
25 | public class SetUtils | |
26 | { | |
27 | /** | |
28 | * Returns the count of things that are in one or other of two sets but not in | |
29 | * both. The sets are not modified. | |
30 | * | |
31 | * @param set1 | |
32 | * @param set2 | |
33 | * @return | |
34 | */ | |
35 | 13 | public static int countDisjunction(Set<? extends Object> set1, |
36 | Set<? extends Object> set2) | |
37 | { | |
38 | 13 | if (set1 == null) |
39 | { | |
40 | 3 | return set2 == null ? 0 : set2.size(); |
41 | } | |
42 | 10 | if (set2 == null) |
43 | { | |
44 | 3 | return set1.size(); |
45 | } | |
46 | ||
47 | 7 | int size1 = set1.size(); |
48 | 7 | int size2 = set2.size(); |
49 | 7 | Set<? extends Object> smallerSet = size1 < size2 ? set1 : set2; |
50 | 7 | Set<? extends Object> largerSet = (smallerSet == set1 ? set2 : set1); |
51 | 7 | int inCommon = 0; |
52 | 7 | for (Object k : smallerSet) |
53 | { | |
54 | 7 | if (largerSet.contains(k)) |
55 | { | |
56 | 6 | inCommon++; |
57 | } | |
58 | } | |
59 | ||
60 | 7 | int notInCommon = (size1 - inCommon) + (size2 - inCommon); |
61 | 7 | return notInCommon; |
62 | } | |
63 | } |