com.liferay.portlet.shopping.util.comparator.ItemPriceComparator Maven / Gradle / Ivy
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Contains interfaces for the portal services. Interfaces are only loaded by the global class loader and are shared by all plugins.
/**
* Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.portlet.shopping.util.comparator;
import com.liferay.portal.kernel.util.OrderByComparator;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portlet.shopping.model.ShoppingItem;
/**
* @author Brian Wing Shun Chan
*/
public class ItemPriceComparator extends OrderByComparator {
public static final String ORDER_BY_ASC =
"ShoppingItem.categoryId ASC, ShoppingItem.price ASC, " +
"ShoppingItem.name ASC";
public static final String ORDER_BY_DESC =
"ShoppingItem.categoryId DESC, ShoppingItem.price DESC, " +
"ShoppingItem.name DESC";
public static final String[] ORDER_BY_FIELDS =
{"categoryId", "price", "name"};
public ItemPriceComparator() {
this(false);
}
public ItemPriceComparator(boolean ascending) {
_ascending = ascending;
}
@Override
public int compare(Object obj1, Object obj2) {
ShoppingItem item1 = (ShoppingItem)obj1;
ShoppingItem item2 = (ShoppingItem)obj2;
Long categoryId1 = new Long(item1.getCategoryId());
Long categoryId2 = new Long(item2.getCategoryId());
int value = categoryId1.compareTo(categoryId2);
if (value == 0) {
double price1 = (1 - item1.getDiscount()) * item1.getPrice();
double price2 = (1 - item2.getDiscount()) * item2.getPrice();
if (price1 < price2) {
value = -1;
}
else if (price1 > price2) {
value = 1;
}
}
if (value == 0) {
String name1 = StringUtil.toLowerCase(item1.getName());
String name2 = StringUtil.toLowerCase(item2.getName());
value = name1.compareTo(name2);
}
if (_ascending) {
return value;
}
else {
return -value;
}
}
@Override
public String getOrderBy() {
if (_ascending) {
return ORDER_BY_ASC;
}
else {
return ORDER_BY_DESC;
}
}
@Override
public String[] getOrderByFields() {
return ORDER_BY_FIELDS;
}
@Override
public boolean isAscending() {
return _ascending;
}
private boolean _ascending;
}