File SortClauseComparator.java
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Classes
| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| SortClauseComparator | 36 | 11 | 0% | 7 | 15 |
Contributing tests
This file is covered by 10 tests.
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| 1 | /* | |
| 2 | * See the NOTICE file distributed with this work for additional | |
| 3 | * information regarding copyright ownership. | |
| 4 | * | |
| 5 | * This is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms of the GNU Lesser General Public License as | |
| 7 | * published by the Free Software Foundation; either version 2.1 of | |
| 8 | * the License, or (at your option) any later version. | |
| 9 | * | |
| 10 | * This software 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 software; if not, write to the Free | |
| 17 | * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
| 18 | * 02110-1301 USA, or see the FSF site: http://www.fsf.org. | |
| 19 | */ | |
| 20 | package org.xwiki.extension.repository.internal; | |
| 21 | ||
| 22 | import java.util.Collection; | |
| 23 | import java.util.Comparator; | |
| 24 | ||
| 25 | import org.apache.commons.lang3.ObjectUtils; | |
| 26 | import org.xwiki.extension.Extension; | |
| 27 | import org.xwiki.extension.repository.search.ExtensionQuery.ORDER; | |
| 28 | import org.xwiki.extension.repository.search.ExtensionQuery.SortClause; | |
| 29 | ||
| 30 | /** | |
| 31 | * A custom {@link Comparator} for {@link Extension} based on {@link SortClause}. | |
| 32 | * | |
| 33 | * @version $Id: 3086536ea441228d599db7d7798b5ffe2ac1b996 $ | |
| 34 | * @since 7.0M2 | |
| 35 | */ | |
| 36 | public class SortClauseComparator implements Comparator<Extension> | |
| 37 | { | |
| 38 | private final Collection<SortClause> sortClauses; | |
| 39 | ||
| 40 | /** | |
| 41 | * @param sortClauses the sort clauses | |
| 42 | */ | |
| 43 | 52 |  public SortClauseComparator(Collection<SortClause> sortClauses) |
| 44 | { | |
| 45 | 52 | this.sortClauses = sortClauses; |
| 46 | } | |
| 47 | ||
| 48 | 353 | @Override |
| 49 | public int compare(Extension o1, Extension o2) | |
| 50 | { | |
| 51 | 353 | for (SortClause sortClause : this.sortClauses) { |
| 52 | 0 | int result = compare(o1, o2, sortClause); |
| 53 | ||
| 54 | 0 | if (result != 0) { |
| 55 | 0 | return result; |
| 56 | } | |
| 57 | } | |
| 58 | ||
| 59 | 353 | return 0; |
| 60 | } | |
| 61 | ||
| 62 | 0 | private int compare(Extension o1, Extension o2, SortClause sortClause) |
| 63 | { | |
| 64 | 0 | Object value1 = o1.get(sortClause.getField()); |
| 65 | 0 | Object value2 = o2.get(sortClause.getField()); |
| 66 | ||
| 67 | 0 | if (value1 instanceof Comparable && value2 instanceof Comparable) { |
| 68 | 0 | return ObjectUtils.compare((Comparable) value1, (Comparable) value2) |
| 69 | 0 | + (sortClause.getOrder() == ORDER.ASC ? 1 : -1); |
| 70 | } | |
| 71 | ||
| 72 | 0 | return 0; |
| 73 | } | |
| 74 | } |