1
14
15 package com.liferay.portlet.shopping.util.comparator;
16
17 import com.liferay.portal.kernel.util.OrderByComparator;
18 import com.liferay.portlet.shopping.model.ShoppingItem;
19
20
25 public class ItemPriceComparator extends OrderByComparator {
26
27 public static String ORDER_BY_ASC = "categoryId ASC, price ASC, name ASC";
28
29 public static String ORDER_BY_DESC =
30 "categoryId DESC, price DESC, name DESC";
31
32 public static String[] ORDER_BY_FIELDS = {"categoryId", "price", "name"};
33
34 public ItemPriceComparator() {
35 this(false);
36 }
37
38 public ItemPriceComparator(boolean asc) {
39 _asc = asc;
40 }
41
42 public int compare(Object obj1, Object obj2) {
43 ShoppingItem item1 = (ShoppingItem)obj1;
44 ShoppingItem item2 = (ShoppingItem)obj2;
45
46 Long categoryId1 = new Long(item1.getCategoryId());
47 Long categoryId2 = new Long(item2.getCategoryId());
48
49 int value = categoryId1.compareTo(categoryId2);
50
51 if (value == 0) {
52 double price1 = (1 - item1.getDiscount()) * item1.getPrice();
53 double price2 = (1 - item2.getDiscount()) * item2.getPrice();
54
55 if (price1 < price2) {
56 value = -1;
57 }
58 else if (price1 > price2) {
59 value = 1;
60 }
61 }
62
63 if (value == 0) {
64 value = item1.getName().toLowerCase().compareTo(
65 item2.getName().toLowerCase());
66 }
67
68 if (_asc) {
69 return value;
70 }
71 else {
72 return -value;
73 }
74 }
75
76 public String getOrderBy() {
77 if (_asc) {
78 return ORDER_BY_ASC;
79 }
80 else {
81 return ORDER_BY_DESC;
82 }
83 }
84
85 public String[] getOrderByFields() {
86 return ORDER_BY_FIELDS;
87 }
88
89 public boolean isAscending() {
90 return _asc;
91 }
92
93 private boolean _asc;
94
95 }