| ItemPriceComparator.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.portlet.shopping.util.comparator;
24
25 import com.liferay.portal.kernel.util.OrderByComparator;
26 import com.liferay.portlet.shopping.model.ShoppingItem;
27
28 /**
29 * <a href="ItemPriceComparator.java.html"><b><i>View Source</i></b></a>
30 *
31 * @author Brian Wing Shun Chan
32 */
33 public class ItemPriceComparator extends OrderByComparator {
34
35 public static String ORDER_BY_ASC = "categoryId ASC, price ASC, name ASC";
36
37 public static String ORDER_BY_DESC =
38 "categoryId DESC, price DESC, name DESC";
39
40 public static String[] ORDER_BY_FIELDS = {"categoryId", "price", "name"};
41
42 public ItemPriceComparator() {
43 this(false);
44 }
45
46 public ItemPriceComparator(boolean asc) {
47 _asc = asc;
48 }
49
50 public int compare(Object obj1, Object obj2) {
51 ShoppingItem item1 = (ShoppingItem)obj1;
52 ShoppingItem item2 = (ShoppingItem)obj2;
53
54 Long categoryId1 = new Long(item1.getCategoryId());
55 Long categoryId2 = new Long(item2.getCategoryId());
56
57 int value = categoryId1.compareTo(categoryId2);
58
59 if (value == 0) {
60 double price1 = (1 - item1.getDiscount()) * item1.getPrice();
61 double price2 = (1 - item2.getDiscount()) * item2.getPrice();
62
63 if (price1 < price2) {
64 value = -1;
65 }
66 else if (price1 > price2) {
67 value = 1;
68 }
69 }
70
71 if (value == 0) {
72 value = item1.getName().toLowerCase().compareTo(
73 item2.getName().toLowerCase());
74 }
75
76 if (_asc) {
77 return value;
78 }
79 else {
80 return -value;
81 }
82 }
83
84 public String getOrderBy() {
85 if (_asc) {
86 return ORDER_BY_ASC;
87 }
88 else {
89 return ORDER_BY_DESC;
90 }
91 }
92
93 public String[] getOrderByFields() {
94 return ORDER_BY_FIELDS;
95 }
96
97 public boolean isAscending() {
98 return _asc;
99 }
100
101 private boolean _asc;
102
103 }