Java tutorial
/* * Copyright 2016 Pivotal Software, Inc.. * * 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 io.github.proxyprint.kitchen.controllers.printshops; import com.google.gson.Gson; import com.google.gson.JsonArray; import com.google.gson.JsonObject; import io.github.proxyprint.kitchen.models.consumer.Consumer; import io.github.proxyprint.kitchen.models.printshops.PrintShop; import io.github.proxyprint.kitchen.models.printshops.Review; import io.github.proxyprint.kitchen.models.repositories.ConsumerDAO; import io.github.proxyprint.kitchen.models.repositories.PrintShopDAO; import io.github.proxyprint.kitchen.models.repositories.ReviewDAO; import io.swagger.annotations.ApiOperation; import java.security.Principal; import java.util.Map; import java.util.Set; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import org.springframework.security.access.annotation.Secured; import org.springframework.transaction.annotation.Transactional; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.context.request.WebRequest; /** * * @author jose */ @RestController @Transactional public class ReviewController { @Autowired private ConsumerDAO consumers; @Autowired private PrintShopDAO printshops; @Autowired private ReviewDAO reviews; @Autowired private Gson GSON; @ApiOperation(value = "Returns all printshop reviews", notes = "404 if the printshop doesn't exist.") @Secured({ "ROLE_MANAGER", "ROLE_EMPLOYEE", "ROLE_USER" }) @RequestMapping(value = "/printshops/{id}/reviews", method = RequestMethod.GET) public ResponseEntity<String> getPrintShopReviews(@PathVariable("id") long id) { PrintShop pShop = this.printshops.findOne(id); if (pShop == null) { return new ResponseEntity(HttpStatus.NOT_FOUND); } else { Set<Review> reviews = pShop.getReviews(); JsonObject review; JsonArray obj = new JsonArray(); for (Review r : reviews) { review = new JsonObject(); review.addProperty("id", r.getId()); review.addProperty("description", r.getDescription()); review.addProperty("rating", r.getRating()); review.addProperty("username", r.getConsumer().getName()); obj.add(review); } return new ResponseEntity(this.GSON.toJson(obj), HttpStatus.OK); } } @ApiOperation(value = "Add a review to a printshop with the given ID", notes = "404 if the printshop doesn't exist.") @Secured({ "ROLE_USER" }) @RequestMapping(value = "/printshops/{id}/reviews", method = RequestMethod.POST) public ResponseEntity<String> addPrintShopReview(@PathVariable("id") long id, Principal principal, @RequestBody Map<String, String> params) { PrintShop pShop = this.printshops.findOne(id); if (pShop == null) { return new ResponseEntity(HttpStatus.NOT_FOUND); } Consumer consumer = this.consumers.findByUsername(principal.getName()); String reviewText = params.get("review"); int rating = Integer.parseInt(params.get("rating")); Review review = reviews.save(new Review(reviewText, rating, consumer)); pShop.addReview(review); pShop.updatePrintShopRating(); this.printshops.save(pShop); return new ResponseEntity(this.GSON.toJson(review), HttpStatus.OK); } @ApiOperation(value = "Edit an existing printshop review", notes = "404 if the printshop or the review doesn't exist.") @Secured({ "ROLE_USER" }) @RequestMapping(value = "/printshops/{printShopId}/reviews/{reviewId}", method = RequestMethod.PUT) public ResponseEntity<String> editPrintShopReview(@PathVariable("printShopId") long printShopId, @PathVariable("reviewId") long reviewId, Principal principal, WebRequest request) { PrintShop pShop = this.printshops.findOne(printShopId); if (pShop == null) { return new ResponseEntity(HttpStatus.NOT_FOUND); } Review review = this.reviews.findOne(reviewId); if (review == null) { return new ResponseEntity(HttpStatus.NOT_FOUND); } else if (!review.getConsumer().getUsername().equals(principal.getName())) { return new ResponseEntity(HttpStatus.UNAUTHORIZED); } pShop.removeReview(review); String reviewText = request.getParameter("review"); int rating = Integer.parseInt(request.getParameter("rating")); review.setDescription(reviewText); review.setRating(rating); pShop.addReview(review); pShop.updatePrintShopRating(); this.printshops.save(pShop); return new ResponseEntity(this.GSON.toJson(review), HttpStatus.OK); } @ApiOperation(value = "Delete an existing printshop review", notes = "404 if the printshop or the review doesn't exist.") @Secured({ "ROLE_USER" }) @RequestMapping(value = "/printshops/{printShopId}/reviews/{reviewId}", method = RequestMethod.DELETE) public ResponseEntity<String> deletePrintShopReview(@PathVariable("printShopId") long printShopId, @PathVariable("reviewId") long reviewId, Principal principal, WebRequest request) { PrintShop pShop = this.printshops.findOne(printShopId); if (pShop == null) { return new ResponseEntity(HttpStatus.NOT_FOUND); } Review review = this.reviews.findOne(reviewId); if (review == null) { return new ResponseEntity(HttpStatus.NOT_FOUND); } else if (!review.getConsumer().getUsername().equals(principal.getName())) { return new ResponseEntity(HttpStatus.UNAUTHORIZED); } pShop.removeReview(review); this.printshops.save(pShop); return new ResponseEntity(this.GSON.toJson(review), HttpStatus.OK); } }