| 1 | /* This file is part of Aard Dictionary for Android <http://aarddict.org>. |
| 2 | * |
| 3 | * This program is free software: you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 3 |
| 5 | * as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License <http://www.gnu.org/licenses/gpl-3.0.txt> |
| 11 | * for more details. |
| 12 | * |
| 13 | * Copyright (C) 2010 Igor Tkach |
| 14 | */ |
| 15 | |
| 16 | package aarddict; |
| 17 | |
| 18 | import java.util.Comparator; |
| 19 | import java.util.UUID; |
| 20 | |
| 21 | final class PreferredDictionaryComparator implements Comparator<Volume> { |
| 22 | |
| 23 | private final UUID preferred; |
| 24 | |
| 25 | PreferredDictionaryComparator(UUID preferred) { |
| 26 | this.preferred = preferred; |
| 27 | } |
| 28 | |
| 29 | public int compare(Volume d1, Volume d2) { |
| 30 | UUID id1 = d1.getDictionaryId(); |
| 31 | UUID id2 = d2.getDictionaryId(); |
| 32 | if (id1.equals(id2)) { |
| 33 | if (id1.equals(preferred)) { |
| 34 | return d1.header.volume - d2.header.volume; |
| 35 | } |
| 36 | } |
| 37 | else if (id1.equals(preferred)) { |
| 38 | return -1; |
| 39 | } |
| 40 | if (id2.equals(preferred)) { |
| 41 | return 1; |
| 42 | } |
| 43 | return 0; |
| 44 | } |
| 45 | } |