Java tutorial
/* * Copyright 2013-2014 ReConf Team * * 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 reconf.server.services.component; import java.util.*; import javax.servlet.http.*; import org.springframework.beans.factory.annotation.*; import org.springframework.http.*; import org.springframework.security.core.*; import org.springframework.transaction.annotation.*; import org.springframework.web.bind.annotation.*; import reconf.server.domain.*; import reconf.server.domain.result.*; import reconf.server.repository.*; import reconf.server.services.*; @CrudService public class UpsertComponentService { @Autowired ProductRepository products; @Autowired ComponentRepository components; @RequestMapping(value = "/product/{prod}/component/{comp}", method = RequestMethod.PUT) @Transactional public ResponseEntity<ComponentResult> doIt(@PathVariable("prod") String productId, @PathVariable("comp") String componentId, @RequestParam(value = "desc", required = false) String description, HttpServletRequest request, Authentication auth) { ComponentKey key = new ComponentKey(productId, componentId); Component reqComponent = new Component(key, description); List<String> errors = DomainValidator.checkForErrors(key); if (!errors.isEmpty()) { return new ResponseEntity<ComponentResult>(new ComponentResult(reqComponent, errors), HttpStatus.BAD_REQUEST); } Product product = products.findOne(key.getProduct()); if (product == null) { return new ResponseEntity<ComponentResult>(new ComponentResult(reqComponent, Product.NOT_FOUND), HttpStatus.NOT_FOUND); } HttpStatus status = null; Component dbComponent = components.findOne(key); if (dbComponent == null) { dbComponent = new Component(key, description); components.save(dbComponent); status = HttpStatus.CREATED; } else { dbComponent.setDescription(description); status = HttpStatus.OK; } return new ResponseEntity<ComponentResult>( new ComponentResult(dbComponent, CrudServiceUtils.getBaseUrl(request)), status); } }