| ItemPriceComparator.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * The contents of this file are subject to the terms of the Liferay Enterprise
5 * Subscription License ("License"). You may not use this file except in
6 * compliance with the License. You can obtain a copy of the License by
7 * contacting Liferay, Inc. See the License for the specific language governing
8 * permissions and limitations under the License, including but not limited to
9 * distribution rights of the Software.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17 * SOFTWARE.
18 */
19
20 package com.liferay.portlet.shopping.util.comparator;
21
22 import com.liferay.portal.kernel.util.OrderByComparator;
23 import com.liferay.portlet.shopping.model.ShoppingItem;
24
25 /**
26 * <a href="ItemPriceComparator.java.html"><b><i>View Source</i></b></a>
27 *
28 * @author Brian Wing Shun Chan
29 *
30 */
31 public class ItemPriceComparator extends OrderByComparator {
32
33 public static String ORDER_BY_ASC = "categoryId ASC, price ASC, name ASC";
34
35 public static String ORDER_BY_DESC =
36 "categoryId DESC, price DESC, name DESC";
37
38 public ItemPriceComparator() {
39 this(false);
40 }
41
42 public ItemPriceComparator(boolean asc) {
43 _asc = asc;
44 }
45
46 public int compare(Object obj1, Object obj2) {
47 ShoppingItem item1 = (ShoppingItem)obj1;
48 ShoppingItem item2 = (ShoppingItem)obj2;
49
50 Long categoryId1 = new Long(item1.getCategoryId());
51 Long categoryId2 = new Long(item2.getCategoryId());
52
53 int value = categoryId1.compareTo(categoryId2);
54
55 if (value == 0) {
56 double price1 = (1 - item1.getDiscount()) * item1.getPrice();
57 double price2 = (1 - item2.getDiscount()) * item2.getPrice();
58
59 if (price1 < price2) {
60 value = -1;
61 }
62 else if (price1 > price2) {
63 value = 1;
64 }
65 }
66
67 if (value == 0) {
68 value = item1.getName().toLowerCase().compareTo(
69 item2.getName().toLowerCase());
70 }
71
72 if (_asc) {
73 return value;
74 }
75 else {
76 return -value;
77 }
78 }
79
80 public String getOrderBy() {
81 if (_asc) {
82 return ORDER_BY_ASC;
83 }
84 else {
85 return ORDER_BY_DESC;
86 }
87 }
88
89 private boolean _asc;
90
91 }