ArticlesController.java
package edu.ucsb.cs156.example.controllers;
import edu.ucsb.cs156.example.entities.Articles;
import edu.ucsb.cs156.example.errors.EntityNotFoundException;
import edu.ucsb.cs156.example.repositories.ArticlesRepository;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.tags.Tag;
import lombok.extern.slf4j.Slf4j;
import com.fasterxml.jackson.core.JsonProcessingException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import javax.validation.Valid;
import java.time.LocalDateTime;
@Tag(name = "Articles")
@RequestMapping("/api/Articles")
@RestController
@Slf4j
public class ArticlesController extends ApiController {
@Autowired
ArticlesRepository articlesRepository;
@Operation(summary= "List all articles")
@PreAuthorize("hasRole('ROLE_USER')")
@GetMapping("/all")
public Iterable<Articles> allArticles() {
Iterable<Articles> articles = articlesRepository.findAll();
return articles;
}
@Operation(summary= "Create a new article")
@PreAuthorize("hasRole('ROLE_ADMIN')")
@PostMapping("/post")
public Articles postArticles(
@Parameter(name="title") @RequestParam String title,
@Parameter(name="url") @RequestParam String url,
@Parameter(name="explanation") @RequestParam String explanation,
@Parameter(name="email") @RequestParam String email,
@Parameter(name="dateAdded",description="(in iso format, e.g. YYYY-mm-ddTHH:MM:SS; see https://en.wikipedia.org/wiki/ISO_8601)") @RequestParam("dateAdded") @DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME) LocalDateTime dateAdded)
throws JsonProcessingException {
// For an explanation of @DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)
// See: https://www.baeldung.com/spring-date-parameters
log.info("dateAdded={}", dateAdded);
Articles articles = new Articles();
articles.setTitle(title);
articles.setUrl(url);
articles.setExplanation(explanation);
articles.setEmail(email);
articles.setDateAdded(dateAdded);
Articles savedArticles = articlesRepository.save(articles);
return savedArticles;
}
@Operation(summary= "Get a single article")
@PreAuthorize("hasRole('ROLE_USER')")
@GetMapping("")
public Articles getById(
@Parameter(name="id") @RequestParam Long id) {
Articles articles = articlesRepository.findById(id)
.orElseThrow(() -> new EntityNotFoundException(Articles.class, id));
return articles;
}
@Operation(summary= "Delete a Article")
@PreAuthorize("hasRole('ROLE_ADMIN')")
@DeleteMapping("")
public Object deleteArticle(
@Parameter(name="id") @RequestParam Long id) {
Articles articles = articlesRepository.findById(id)
.orElseThrow(() -> new EntityNotFoundException(Articles.class, id));
articlesRepository.delete(articles);
return genericMessage("Articles with id %s deleted".formatted(id));
}
@Operation(summary= "Update a single article")
@PreAuthorize("hasRole('ROLE_ADMIN')")
@PutMapping("")
public Articles updateArticle(
@Parameter(name="id") @RequestParam Long id,
@RequestBody @Valid Articles incoming) {
Articles articles = articlesRepository.findById(id)
.orElseThrow(() -> new EntityNotFoundException(Articles.class, id));
articles.setTitle(incoming.getTitle());
articles.setUrl(incoming.getUrl());
articles.setExplanation(incoming.getExplanation());
articles.setEmail(incoming.getEmail());
articles.setDateAdded(incoming.getDateAdded());
articlesRepository.save(articles);
return articles;
}
}