Java tutorial
/******************************************************************************* * Copyright 2013 Thomas Letsch (contact@thomas-letsch.de) * * 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.moserp.product.rest; import org.moserp.product.domain.Product; import org.moserp.product.domain.ProductCatalog; import org.moserp.product.repository.ProductCatalogRepository; import org.moserp.product.repository.ProductRepository; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.rest.core.support.DomainObjectMerger; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.*; import java.util.List; @RestController @RequestMapping("/productCatalogs") public class ProductCatalogController { @Autowired private ProductRepository productRepository; @Autowired private ProductCatalogRepository productCatalogRepository; @Autowired private DomainObjectMerger domainObjectMerger; @ResponseBody @RequestMapping(method = RequestMethod.PUT, value = "/{catalogId}/products") public ResponseEntity<?> updateProducts(@PathVariable String catalogId, @RequestBody List<Product> products) { ProductCatalog productCatalog = productCatalogRepository.findOne(catalogId); if (productCatalog == null) { return ResponseEntity.notFound().build(); } for (Product newProduct : products) { Product product = productRepository.findByExternalId(newProduct.getExternalId()); if (product == null) { product = newProduct; } else { domainObjectMerger.merge(newProduct, product, DomainObjectMerger.NullHandlingPolicy.IGNORE_NULLS); } product.setCatalog(productCatalog); productRepository.save(product); } return ResponseEntity.ok().build(); } }