BlogResource.java

package com.ippon.belt.web.rest;

import com.ippon.belt.domain.Blog;
import com.ippon.belt.repository.BlogRepository;
import com.ippon.belt.web.rest.errors.BadRequestAlertException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import javax.validation.Valid;
import javax.validation.constraints.NotNull;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.ResponseEntity;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;
import tech.jhipster.web.util.HeaderUtil;
import tech.jhipster.web.util.ResponseUtil;

/**
 * REST controller for managing {@link com.ippon.belt.domain.Blog}.
 */
@RestController
@RequestMapping("/api")
@Transactional
public class BlogResource {

    private final Logger log = LoggerFactory.getLogger(BlogResource.class);

    private static final String ENTITY_NAME = "blog";

    @Value("${jhipster.clientApp.name}")
    private String applicationName;

    private final BlogRepository blogRepository;

    public BlogResource(BlogRepository blogRepository) {
        this.blogRepository = blogRepository;
    }

    /**
     * {@code POST  /blogs} : Create a new blog.
     *
     * @param blog the blog to create.
     * @return the {@link ResponseEntity} with status {@code 201 (Created)} and with body the new blog, or with status {@code 400 (Bad Request)} if the blog has already an ID.
     * @throws URISyntaxException if the Location URI syntax is incorrect.
     */
    @PostMapping("/blogs")
    public ResponseEntity<Blog> createBlog(@Valid @RequestBody Blog blog) throws URISyntaxException {
        log.debug("REST request to save Blog : {}", blog);
        if (blog.getId() != null) {
            throw new BadRequestAlertException("A new blog cannot already have an ID", ENTITY_NAME, "idexists");
        }
        Blog result = blogRepository.save(blog);
        return ResponseEntity
            .created(new URI("/api/blogs/" + result.getId()))
            .headers(HeaderUtil.createEntityCreationAlert(applicationName, true, ENTITY_NAME, result.getId().toString()))
            .body(result);
    }

    /**
     * {@code PUT  /blogs/:id} : Updates an existing blog.
     *
     * @param id the id of the blog to save.
     * @param blog the blog to update.
     * @return the {@link ResponseEntity} with status {@code 200 (OK)} and with body the updated blog,
     * or with status {@code 400 (Bad Request)} if the blog is not valid,
     * or with status {@code 500 (Internal Server Error)} if the blog couldn't be updated.
     * @throws URISyntaxException if the Location URI syntax is incorrect.
     */
    @PutMapping("/blogs/{id}")
    public ResponseEntity<Blog> updateBlog(@PathVariable(value = "id", required = false) final Long id, @Valid @RequestBody Blog blog)
        throws URISyntaxException {
        log.debug("REST request to update Blog : {}, {}", id, blog);
        if (blog.getId() == null) {
            throw new BadRequestAlertException("Invalid id", ENTITY_NAME, "idnull");
        }
        if (!Objects.equals(id, blog.getId())) {
            throw new BadRequestAlertException("Invalid ID", ENTITY_NAME, "idinvalid");
        }

        if (!blogRepository.existsById(id)) {
            throw new BadRequestAlertException("Entity not found", ENTITY_NAME, "idnotfound");
        }

        Blog result = blogRepository.save(blog);
        return ResponseEntity
            .ok()
            .headers(HeaderUtil.createEntityUpdateAlert(applicationName, true, ENTITY_NAME, blog.getId().toString()))
            .body(result);
    }

    /**
     * {@code PATCH  /blogs/:id} : Partial updates given fields of an existing blog, field will ignore if it is null
     *
     * @param id the id of the blog to save.
     * @param blog the blog to update.
     * @return the {@link ResponseEntity} with status {@code 200 (OK)} and with body the updated blog,
     * or with status {@code 400 (Bad Request)} if the blog is not valid,
     * or with status {@code 404 (Not Found)} if the blog is not found,
     * or with status {@code 500 (Internal Server Error)} if the blog couldn't be updated.
     * @throws URISyntaxException if the Location URI syntax is incorrect.
     */
    @PatchMapping(value = "/blogs/{id}", consumes = { "application/json", "application/merge-patch+json" })
    public ResponseEntity<Blog> partialUpdateBlog(
        @PathVariable(value = "id", required = false) final Long id,
        @NotNull @RequestBody Blog blog
    ) throws URISyntaxException {
        log.debug("REST request to partial update Blog partially : {}, {}", id, blog);
        if (blog.getId() == null) {
            throw new BadRequestAlertException("Invalid id", ENTITY_NAME, "idnull");
        }
        if (!Objects.equals(id, blog.getId())) {
            throw new BadRequestAlertException("Invalid ID", ENTITY_NAME, "idinvalid");
        }

        if (!blogRepository.existsById(id)) {
            throw new BadRequestAlertException("Entity not found", ENTITY_NAME, "idnotfound");
        }

        Optional<Blog> result = blogRepository
            .findById(blog.getId())
            .map(existingBlog -> {
                if (blog.getName() != null) {
                    existingBlog.setName(blog.getName());
                }
                if (blog.getHandle() != null) {
                    existingBlog.setHandle(blog.getHandle());
                }

                return existingBlog;
            })
            .map(blogRepository::save);

        return ResponseUtil.wrapOrNotFound(
            result,
            HeaderUtil.createEntityUpdateAlert(applicationName, true, ENTITY_NAME, blog.getId().toString())
        );
    }

    /**
     * {@code GET  /blogs} : get all the blogs.
     *
     * @return the {@link ResponseEntity} with status {@code 200 (OK)} and the list of blogs in body.
     */
    @GetMapping("/blogs")
    public List<Blog> getAllBlogs() {
        log.debug("REST request to get all Blogs");
        return blogRepository.findByUserIsCurrentUser();
    }

    /**
     * {@code GET  /blogs/:id} : get the "id" blog.
     *
     * @param id the id of the blog to retrieve.
     * @return the {@link ResponseEntity} with status {@code 200 (OK)} and with body the blog, or with status {@code 404 (Not Found)}.
     */
    @GetMapping("/blogs/{id}")
    public ResponseEntity<Blog> getBlog(@PathVariable Long id) {
        log.debug("REST request to get Blog : {}", id);
        Optional<Blog> blog = blogRepository.findById(id);
        return ResponseUtil.wrapOrNotFound(blog);
    }

    /**
     * {@code DELETE  /blogs/:id} : delete the "id" blog.
     *
     * @param id the id of the blog to delete.
     * @return the {@link ResponseEntity} with status {@code 204 (NO_CONTENT)}.
     */
    @DeleteMapping("/blogs/{id}")
    public ResponseEntity<Void> deleteBlog(@PathVariable Long id) {
        log.debug("REST request to delete Blog : {}", id);
        blogRepository.deleteById(id);
        return ResponseEntity
            .noContent()
            .headers(HeaderUtil.createEntityDeletionAlert(applicationName, true, ENTITY_NAME, id.toString()))
            .build();
    }
}