net.shopxx.service.impl.ShippingMethodServiceImpl.java Source code

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Here is the source code for net.shopxx.service.impl.ShippingMethodServiceImpl.java

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/*
 * Copyright 2005-2015 shopxx.net. All rights reserved.
 * Support: http://3936242.01p.com/
 * License: http://3936242.01p.com/license
 */
package net.shopxx.service.impl;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

import net.shopxx.Setting;
import net.shopxx.entity.Area;
import net.shopxx.entity.FreightConfig;
import net.shopxx.entity.Receiver;
import net.shopxx.entity.ShippingMethod;
import net.shopxx.service.ShippingMethodService;
import net.shopxx.util.SystemUtils;

import org.apache.commons.collections.CollectionUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.Assert;

@Service("shippingMethodServiceImpl")
public class ShippingMethodServiceImpl extends BaseServiceImpl<ShippingMethod, Long>
        implements ShippingMethodService {

    @Transactional(readOnly = true)
    public BigDecimal calculateFreight(ShippingMethod shippingMethod, Area area, Integer weight) {
        Assert.notNull(shippingMethod);

        Setting setting = SystemUtils.getSetting();
        BigDecimal firstPrice = shippingMethod.getDefaultFirstPrice();
        BigDecimal continuePrice = shippingMethod.getDefaultContinuePrice();
        if (area != null && CollectionUtils.isNotEmpty(shippingMethod.getFreightConfigs())) {
            List<Area> areas = new ArrayList<Area>();
            areas.addAll(area.getParents());
            areas.add(area);
            for (int i = areas.size() - 1; i >= 0; i--) {
                FreightConfig freightConfig = shippingMethod.getFreightConfig(areas.get(i));
                if (freightConfig != null) {
                    firstPrice = freightConfig.getFirstPrice();
                    continuePrice = freightConfig.getContinuePrice();
                    break;
                }
            }
        }
        if (weight == null || weight <= shippingMethod.getFirstWeight()
                || continuePrice.compareTo(BigDecimal.ZERO) == 0) {
            return setting.setScale(firstPrice);
        } else {
            double contiuneWeightCount = Math
                    .ceil((weight - shippingMethod.getFirstWeight()) / (double) shippingMethod.getContinueWeight());
            return setting.setScale(
                    firstPrice.add(continuePrice.multiply(new BigDecimal(String.valueOf(contiuneWeightCount)))));
        }
    }

    @Transactional(readOnly = true)
    public BigDecimal calculateFreight(ShippingMethod shippingMethod, Receiver receiver, Integer weight) {
        return calculateFreight(shippingMethod, receiver != null ? receiver.getArea() : null, weight);
    }

}