| DocumentComparator.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 *
5 *
6 *
7 * The contents of this file are subject to the terms of the Liferay Enterprise
8 * Subscription License ("License"). You may not use this file except in
9 * compliance with the License. You can obtain a copy of the License by
10 * contacting Liferay, Inc. See the License for the specific language governing
11 * permissions and limitations under the License, including but not limited to
12 * distribution rights of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.kernel.search;
24
25 import java.util.ArrayList;
26 import java.util.Comparator;
27 import java.util.List;
28
29 /**
30 * <a href="DocumentComparator.java.html"><b><i>View Source</i></b></a>
31 *
32 * @author Brian Wing Shun Chan
33 */
34 public class DocumentComparator implements Comparator<Document> {
35
36 public DocumentComparator() {
37 this(true, false);
38 }
39
40 public DocumentComparator(boolean asc, boolean caseSensitive) {
41 _asc = asc;
42 _caseSensitive = caseSensitive;
43 }
44
45 public void addOrderBy(String name) {
46 addOrderBy(name, _asc, _caseSensitive);
47 }
48
49 public void addOrderBy(String name, boolean asc, boolean caseSensitive) {
50 DocumentComparatorOrderBy orderBy = new DocumentComparatorOrderBy(
51 name, asc, caseSensitive);
52
53 _columns.add(orderBy);
54 }
55
56 public int compare(Document doc1, Document doc2) {
57 for (DocumentComparatorOrderBy orderBy : _columns) {
58 String value1 = doc1.get(orderBy.getName());
59 String value2 = doc2.get(orderBy.getName());
60
61 if (!orderBy.isAsc()) {
62 String temp = value1;
63
64 value1 = value2;
65 value2 = temp;
66 }
67
68 int result = 0;
69
70 if ((value1 != null) && (value2 != null)) {
71 if (orderBy.isCaseSensitive()) {
72 result = value1.compareTo(value2);
73 }
74 else {
75 result = value1.compareToIgnoreCase(value2);
76 }
77 }
78
79 if (result != 0) {
80 return result;
81 }
82 }
83
84 return 0;
85 }
86
87 private boolean _asc;
88 private boolean _caseSensitive;
89 private List<DocumentComparatorOrderBy> _columns =
90 new ArrayList<DocumentComparatorOrderBy>();
91
92 }