Java tutorial
/* * Copyright 2016-2017 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 com.kazuki43zoo.jpetstore.ui; import com.kazuki43zoo.jpetstore.component.event.EntityChangedEvent; import com.kazuki43zoo.jpetstore.domain.Account; import com.kazuki43zoo.jpetstore.domain.Product; import com.kazuki43zoo.jpetstore.service.AccountUserDetails; import com.kazuki43zoo.jpetstore.service.CatalogService; import lombok.RequiredArgsConstructor; import org.springframework.context.event.EventListener; import org.springframework.security.authentication.event.AuthenticationSuccessEvent; import org.springframework.stereotype.Component; import java.util.List; /** * @author Kazuki Shimizu */ @Component @RequiredArgsConstructor public class EventListeners { private final CatalogService catalogService; private final Favourite favourite; @EventListener public void handleAuthenticationSuccessEvent(AuthenticationSuccessEvent event) { Account account = ((AccountUserDetails) event.getAuthentication().getPrincipal()).getAccount(); loadFavouriteProductList(account); } @EventListener public void handleAccountChangedEvent(EntityChangedEvent<Account> event) { Account account = event.getEntity(); loadFavouriteProductList(account); } private void loadFavouriteProductList(Account account) { if (account.isListOption()) { List<Product> productList = catalogService.getProductListByCategory(account.getFavouriteCategoryId()); favourite.setProductList(productList); } else { favourite.setProductList(null); } } }