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/*
* Copyright 2008-2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.broadleafcommerce.core.pricing.service.workflow;
import org.broadleafcommerce.core.catalog.domain.ProductBundle;
import org.broadleafcommerce.core.catalog.domain.SkuBundleItem;
import org.broadleafcommerce.core.catalog.service.CatalogService;
import org.broadleafcommerce.core.order.dao.FulfillmentGroupItemDao;
import org.broadleafcommerce.core.order.dao.OrderItemDao;
import org.broadleafcommerce.core.order.domain.BundleOrderItem;
import org.broadleafcommerce.core.order.domain.DiscreteOrderItem;
import org.broadleafcommerce.core.order.domain.FulfillmentGroup;
import org.broadleafcommerce.core.order.domain.FulfillmentGroupItem;
import org.broadleafcommerce.core.order.domain.Order;
import org.broadleafcommerce.core.order.domain.OrderItem;
import org.broadleafcommerce.core.order.service.OrderService;
import org.broadleafcommerce.core.order.service.exception.ItemNotFoundException;
import org.broadleafcommerce.core.order.service.exception.RemoveFromCartException;
import org.broadleafcommerce.core.order.service.type.OrderItemType;
import org.broadleafcommerce.core.pricing.service.exception.PricingException;
import org.broadleafcommerce.core.workflow.BaseActivity;
import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* This pricing workflow step will automatically bundle items in the cart.
*
* For example, if a ProductBundle exists of two items and the user has
* one of the items in their cart. If they then add the second item,
* this activity will replace the two items with the ProductBundle.
*
* This only occurs if the ProductBundle is set to "automatically" bundle.
*
*/
public class AutoBundleActivity extends BaseActivity {
@Resource(name="blCatalogService")
protected CatalogService catalogService;
@Resource(name="blOrderService")
protected OrderService orderService;
@Resource(name="blOrderItemDao")
protected OrderItemDao orderItemDao;
@Resource(name="blFulfillmentGroupItemDao")
protected FulfillmentGroupItemDao fulfillmentGroupItemDao;
public PricingContext execute(PricingContext context) throws Exception {
Order order = context.getSeedData();
order = handleAutomaticBundling(order);
context.setSeedData(order);
return context;
}
public Order handleAutomaticBundling(Order order) throws PricingException, RemoveFromCartException {
boolean itemsHaveBeenUnbundled = false;
List unbundledItems = null;
List productBundles = catalogService.findAutomaticProductBundles();
Set processedBundleIds = new HashSet();
for (ProductBundle productBundle : productBundles) {
int existingUses = countExistingUsesOfBundle(order, productBundle);
Integer maxApplications = null;
for (SkuBundleItem skuBundleItem : productBundle.getSkuBundleItems()) {
int maxSkuApplications = countMaximumApplications(order, skuBundleItem, processedBundleIds);
if (maxApplications == null || maxApplications > maxSkuApplications) {
maxApplications = maxSkuApplications;
}
}
processedBundleIds.add(productBundle.getId());
if (maxApplications != existingUses) {
if (! itemsHaveBeenUnbundled) {
// Store the discrete items that were part of automatic bundles
unbundledItems = unBundleItems(order);
order = removeAutomaticBundles(order);
itemsHaveBeenUnbundled = true;
}
// Create a new bundle with maxApplication occurrences
order = bundleItems(order, productBundle, maxApplications, unbundledItems);
}
}
return order;
}
/**
* Removes all automatic bundles from the order and replaces with DiscreteOrderItems.
*
* @param order
* @throws PricingException
*/
private Order removeAutomaticBundles(Order order) throws PricingException {
List bundlesToRemove = new ArrayList();
for (OrderItem orderItem : order.getOrderItems()) {
if (orderItem instanceof BundleOrderItem) {
BundleOrderItem bundleOrderItem = (BundleOrderItem) orderItem;
if (bundleOrderItem.getProductBundle() != null && bundleOrderItem.getProductBundle().getAutoBundle()) {
bundlesToRemove.add(bundleOrderItem);
}
}
}
for (BundleOrderItem bundleOrderItem : bundlesToRemove) {
try {
order = orderService.removeItem(order.getId(), bundleOrderItem.getId(), false);
} catch (RemoveFromCartException e) {
throw new PricingException("Could not remove item", e);
}
}
return order;
}
/**
* Removes all automatic bundles from the order and replaces with DiscreteOrderItems.
*
* @param order
*/
private List unBundleItems(Order order) throws PricingException{
List unbundledItems = null;
for (OrderItem orderItem : order.getOrderItems()) {
if (orderItem instanceof BundleOrderItem) {
BundleOrderItem bundleOrderItem = (BundleOrderItem) orderItem;
if (bundleOrderItem.getProductBundle() != null && bundleOrderItem.getProductBundle().getAutoBundle()) {
if (unbundledItems == null) {
unbundledItems = new ArrayList();
}
for(DiscreteOrderItem item : bundleOrderItem.getDiscreteOrderItems()) {
DiscreteOrderItem newOrderItem = (DiscreteOrderItem) item.clone();
newOrderItem.setQuantity(item.getQuantity() * bundleOrderItem.getQuantity());
newOrderItem.setSkuBundleItem(null);
newOrderItem.setBundleOrderItem(null);
newOrderItem.updateSaleAndRetailPrices();
newOrderItem.setOrder(order);
unbundledItems.add(newOrderItem);
}
}
}
}
return unbundledItems;
}
/**
* Builds a BundleOrderItem based on the passed in productBundle. Creates new DiscreteOrderItems.
* Removes the existing matching DiscreteOrderItems or modifies the quantity if needed.
*
* @param order
* @param productBundle
* @param numApplications
* @throws PricingException
* @throws ItemNotFoundException
*/
private Order bundleItems(Order order, ProductBundle productBundle, Integer numApplications, List unbundledItems) throws PricingException, RemoveFromCartException {
BundleOrderItem bundleOrderItem = (BundleOrderItem) orderItemDao.create(OrderItemType.BUNDLE);
bundleOrderItem.setQuantity(numApplications);
bundleOrderItem.setCategory(productBundle.getDefaultCategory());
bundleOrderItem.setSku(productBundle.getDefaultSku());
bundleOrderItem.setName(productBundle.getName());
bundleOrderItem.setProductBundle(productBundle);
bundleOrderItem.setOrder(order);
// make a copy of the fulfillment group items since they will be deleted when the order items are removed
Map skuIdFulfillmentGroupMap = new HashMap();
for (FulfillmentGroup fulfillmentGroup : order.getFulfillmentGroups()) {
for (FulfillmentGroupItem fulfillmentGroupItem : fulfillmentGroup.getFulfillmentGroupItems()) {
if (fulfillmentGroupItem.getOrderItem() instanceof DiscreteOrderItem) {
DiscreteOrderItem discreteOrderItem = (DiscreteOrderItem) fulfillmentGroupItem.getOrderItem();
skuIdFulfillmentGroupMap.put(discreteOrderItem.getSku().getId(), fulfillmentGroupItem);
}
}
}
for (SkuBundleItem skuBundleItem : productBundle.getSkuBundleItems()) {
List itemMatches = new ArrayList();
int skuMatches = populateItemMatchesForSku(itemMatches, order, unbundledItems, skuBundleItem.getSku().getId());
int skusRequired = skuBundleItem.getQuantity()* numApplications;
if (skuMatches < skusRequired) {
throw new IllegalArgumentException("Something went wrong creating automatic bundles. Not enough skus to fulfill bundle requirements for sku id: " + skuBundleItem.getSku().getId());
}
// remove-all-items from order
// this call also deletes any fulfillment group items that are associated with that order item
for (DiscreteOrderItem item : itemMatches) {
order = orderService.removeItem(order.getId(), item.getId(), false);
}
DiscreteOrderItem baseItem = null;
if (itemMatches.size() > 0) {
baseItem = itemMatches.get(0);
} else {
for (DiscreteOrderItem discreteOrderItem : unbundledItems) {
if (discreteOrderItem.getSku().getId().equals(skuBundleItem.getSku().getId())) {
baseItem = discreteOrderItem;
}
}
}
// Add item to the skuBundle
DiscreteOrderItem newSkuBundleItem = (DiscreteOrderItem) baseItem.clone();
newSkuBundleItem.setSkuBundleItem(skuBundleItem);
newSkuBundleItem.setBundleOrderItem(bundleOrderItem);
newSkuBundleItem.setQuantity(skuBundleItem.getQuantity());
newSkuBundleItem.setOrder(null);
bundleOrderItem.getDiscreteOrderItems().add(newSkuBundleItem);
if (skuMatches > skusRequired) {
// Add a non-bundled item to the order with the remaining sku count.
DiscreteOrderItem newOrderItem = (DiscreteOrderItem) baseItem.clone();
newOrderItem.setBundleOrderItem(null);
newOrderItem.setSkuBundleItem(null);
newOrderItem.setQuantity(skuMatches - skusRequired);
newOrderItem = (DiscreteOrderItem) orderItemDao.save(newOrderItem);
newOrderItem.setOrder(order);
newOrderItem.updateSaleAndRetailPrices();
// Re-associate fulfillment group item to newOrderItem
FulfillmentGroupItem fulfillmentGroupItem = skuIdFulfillmentGroupMap.get(newSkuBundleItem.getSku().getId());
if (fulfillmentGroupItem != null) {
FulfillmentGroupItem newFulfillmentGroupItem = fulfillmentGroupItem.clone();
newFulfillmentGroupItem.setOrderItem(newOrderItem);
newFulfillmentGroupItem.setQuantity(newOrderItem.getQuantity());
newFulfillmentGroupItem = fulfillmentGroupItemDao.save(newFulfillmentGroupItem);
//In case this activity is run inside a transaction, we need to set the relationships on the order directly
//these associations may have not been committed yet. This order is used in other activities and will not be reloaded if in a transaction.
for (FulfillmentGroup fg : order.getFulfillmentGroups()) {
if (newFulfillmentGroupItem.getFulfillmentGroup() != null && fg.getId().equals(newFulfillmentGroupItem.getFulfillmentGroup().getId())) {
fg.addFulfillmentGroupItem(newFulfillmentGroupItem);
}
}
}
order.getOrderItems().add(newOrderItem);
}
}
bundleOrderItem.updateSaleAndRetailPrices();
order.getOrderItems().add(bundleOrderItem);
order = orderService.save(order, false);
for (OrderItem orderItem : order.getOrderItems()) {
if (orderItem instanceof BundleOrderItem) {
BundleOrderItem bundleItem = (BundleOrderItem) orderItem;
for (DiscreteOrderItem discreteOrderItem : bundleItem.getDiscreteOrderItems()) {
// Re-associate fulfillment group item to newly created skuBundles
FulfillmentGroupItem fulfillmentGroupItem = skuIdFulfillmentGroupMap.get(discreteOrderItem.getSku().getId());
if (fulfillmentGroupItem != null) {
FulfillmentGroupItem newFulfillmentGroupItem = fulfillmentGroupItem.clone();
newFulfillmentGroupItem.setOrderItem(discreteOrderItem);
newFulfillmentGroupItem.setQuantity(discreteOrderItem.getQuantity());
//In case this activity is run inside a transaction, we need to set the relationships on the order directly
//these associations may have not been committed yet. This order is used in other activities and will not be reloaded if in a transaction.
for (FulfillmentGroup fg : order.getFulfillmentGroups()) {
if (newFulfillmentGroupItem.getFulfillmentGroup() != null && fg.getId().equals(newFulfillmentGroupItem.getFulfillmentGroup().getId())) {
fg.addFulfillmentGroupItem(newFulfillmentGroupItem);
}
}
}
}
}
}
//reload order with new fulfillment group items
order = orderService.save(order, false);
return order;
}
protected int countExistingUsesOfBundle(Order order, ProductBundle bundle) {
int existingUses=0;
for (OrderItem orderItem : order.getOrderItems()) {
if (orderItem instanceof BundleOrderItem) {
BundleOrderItem bundleOrderItem = (BundleOrderItem) orderItem;
if (bundleOrderItem.getProductBundle() != null) {
if (bundleOrderItem.getProductBundle().getId().equals(bundle.getId())) {
existingUses = existingUses+1;
}
}
}
}
return existingUses;
}
protected int populateItemMatchesForSku(List matchingItems, Order order, List unbundledItems, Long skuId) {
int skuMatches = 0;
for (OrderItem orderItem : order.getOrderItems()) {
if (orderItem instanceof DiscreteOrderItem) {
DiscreteOrderItem item = (DiscreteOrderItem) orderItem;
if (skuId.equals(item.getSku().getId())) {
matchingItems.add(item);
skuMatches = skuMatches + item.getQuantity();
}
}
}
if (unbundledItems != null) {
for (DiscreteOrderItem discreteOrderItem : unbundledItems) {
if (skuId.equals(discreteOrderItem.getSku().getId())) {
skuMatches = skuMatches + discreteOrderItem.getQuantity();
}
}
}
return skuMatches;
}
protected int countMaximumApplications(Order order, SkuBundleItem skuBundleItem, Set processedBundles) {
int skuMatches = 0;
Long skuId = skuBundleItem.getSku().getId();
for (OrderItem orderItem : order.getOrderItems()) {
if (orderItem instanceof DiscreteOrderItem) {
DiscreteOrderItem item = (DiscreteOrderItem) orderItem;
if (skuId.equals(item.getSku().getId())) {
skuMatches = skuMatches + item.getQuantity();
}
} else if (orderItem instanceof BundleOrderItem) {
BundleOrderItem bundleItem = (BundleOrderItem) orderItem;
if (bundleItem.getProductBundle() != null && bundleItem.getProductBundle().getAutoBundle()) {
if (! processedBundles.contains(bundleItem.getId())) {
for(DiscreteOrderItem discreteItem : bundleItem.getDiscreteOrderItems()) {
if (skuId.equals(discreteItem.getSku().getId())) {
skuMatches = skuMatches + (discreteItem.getQuantity() * bundleItem.getQuantity());
}
}
}
}
}
}
return skuMatches / skuBundleItem.getQuantity();
}
}