Connor Wooding - Java Backend Sample

src/main/java/levvel/io/controller/BlogController.java

@@ -1,11 +1,15 @@
 package levvel.io.controller;
 
 import levvel.io.model.Blog;
+import levvel.io.model.Comment;
+import levvel.io.model.CommentList;
 import levvel.io.service.BlogService;
 import lombok.AllArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
+
 @RestController
 @AllArgsConstructor
 @RequestMapping("/blog")
@@ -24,4 +28,22 @@ public ResponseEntity<Blog> getBlog(@PathVariable String id) {
         Blog blog = blogService.getBlog(id);
         return ResponseEntity.ok().body(blog);
     }
+
+    @GetMapping("")
+    public ResponseEntity<List<Blog>> getBlogs() {
+        List<Blog> blogs = blogService.getBlogs();
+        return ResponseEntity.ok().body(blogs);
+    }
+
+    @PostMapping("/post/{id}/comment")
+    public ResponseEntity<Comment> addComment(@PathVariable String id, @RequestBody Comment comment) {
+        blogService.addComment(id, comment);
+        return ResponseEntity.ok().body(comment);
+    }
+
+    @GetMapping("/post/{id}/comment")
+    public ResponseEntity<List<Comment>> getComments(@PathVariable String id) {
+        List<Comment> comments = blogService.getComments(id);
+        return ResponseEntity.ok().body(comments);
+    }
 }

src/main/java/levvel/io/data/CommentRepository.java

@@ -0,0 +1,9 @@
+package levvel.io.data;
+
+import levvel.io.model.CommentList;
+import org.springframework.data.mongodb.repository.MongoRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface CommentRepository extends MongoRepository<CommentList, String> {
+}

src/main/java/levvel/io/model/Comment.java

@@ -0,0 +1,24 @@
+package levvel.io.model;
+
+import lombok.Data;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.Id;
+import org.springframework.data.annotation.LastModifiedDate;
+
+import java.time.LocalDateTime;
+
+@Data
+public class Comment {
+
+    @Id
+    String id;
+
+    @CreatedDate
+    private LocalDateTime createdDate;
+
+    @LastModifiedDate
+    private LocalDateTime lastModifiedDate;
+
+    String author;
+    String text;
+}

src/main/java/levvel/io/model/CommentList.java

@@ -0,0 +1,21 @@
+package levvel.io.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import org.springframework.data.annotation.Id;
+
+import java.util.List;
+
+@Data
+@AllArgsConstructor
+public class CommentList {
+
+    @Id
+    String blogId;
+
+    List<Comment> comments;
+
+    public void addComment(Comment comment) {
+        comments.add(comment);
+    }
+}

src/main/java/levvel/io/service/BlogService.java

@@ -1,10 +1,19 @@
 package levvel.io.service;
 
 import levvel.io.model.Blog;
+import levvel.io.model.Comment;
+
+import java.util.List;
 
 public interface BlogService {
 
     void addBlog(Blog blog);
 
     Blog getBlog(String id);
+
+    List<Blog> getBlogs();
+
+    void addComment(String id, Comment comment);
+
+    List<Comment> getComments(String id);
 }

src/main/java/levvel/io/service/BlogServiceImpl.java

@@ -1,23 +1,57 @@
 package levvel.io.service;
 
 import levvel.io.data.BlogRepository;
+import levvel.io.data.CommentRepository;
 import levvel.io.model.Blog;
+import levvel.io.model.Comment;
+import levvel.io.model.CommentList;
 import lombok.AllArgsConstructor;
 import org.springframework.stereotype.Service;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @Service
 @AllArgsConstructor
 public class BlogServiceImpl implements BlogService {
 
     private BlogRepository blogRepository;
+    private CommentRepository commentRepository;
 
     @Override
     public void addBlog(Blog blog) {
+        // Save the blog
         blogRepository.save(blog);
+
+        // Create a comment section for this Blog
+        CommentList commentList = new CommentList(blog.getId(), new ArrayList<>());
+        commentRepository.save(commentList);
     }
 
     @Override
     public Blog getBlog(String id) {
+        // Get the blog from the id
         return blogRepository.findById(id).orElseGet(null);
     }
+
+    @Override
+    public List<Blog> getBlogs() {
+        // Function to get all blogs, useful for debugging
+        return blogRepository.findAll();
+    }
+
+    @Override
+    public void addComment(String id, Comment comment) {
+        // Get current comment list for this blog and append comment to it
+        CommentList commentList = commentRepository.findById(id).orElseGet(null);
+        commentList.addComment(comment);
+        commentRepository.save(commentList);
+    }
+
+    @Override
+    public List<Comment> getComments(String id) {
+        // Get the object and extract the list of comments
+        CommentList commentList = commentRepository.findById(id).orElseGet(null);
+        return commentList.getComments();
+    }
 }

src/main/resources/application.properties

@@ -1 +1 @@
-
+server.port=8090

src/test/java/levvel/io/BlogTest.java

@@ -0,0 +1,34 @@
+package levvel.io;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import levvel.io.model.Blog;
+import levvel.io.model.Comment;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Objects;
+
+public abstract class BlogTest {
+
+    protected static final String ID = "fake_id";
+
+    protected Blog getBlogFromResource() throws IOException {
+        File file = new File(
+                Objects.requireNonNull(this.getClass().getClassLoader().getResource("addBlog.json")).getFile()
+        );
+
+        ObjectMapper mapper = new ObjectMapper();
+
+        return mapper.readValue(file, Blog.class);
+    }
+
+    protected Comment getCommentFromResource() throws IOException {
+        File file = new File(
+                Objects.requireNonNull(this.getClass().getClassLoader().getResource("addComment.json")).getFile()
+        );
+
+        ObjectMapper mapper = new ObjectMapper();
+
+        return mapper.readValue(file, Comment.class);
+    }
+}

src/test/java/levvel/io/WorkSampleApplicationTests.java

@@ -1,13 +1,34 @@
 package levvel.io;
 
+import levvel.io.controller.BlogController;
+import levvel.io.data.BlogRepository;
+import levvel.io.data.CommentRepository;
+import levvel.io.service.BlogService;
 import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 
+
 @SpringBootTest
 class WorkSampleApplicationTests {
 
+	@Autowired
+	private BlogController blogController;
+
+	@Autowired
+	private BlogService blogService;
+
+	@Autowired
+	private BlogRepository blogRepository;
+
+	@Autowired
+	private CommentRepository commentRepository;
+
 	@Test
-	void contextLoads() {
+	public void contextLoads() {
+		assert(blogController != null);
+		assert(blogService != null);
+		assert(blogRepository != null);
+		assert(commentRepository != null);
 	}
-
 }

src/test/java/levvel/io/controller/BlogControllerTest.java

@@ -0,0 +1,61 @@
+package levvel.io.controller;
+
+import levvel.io.BlogTest;
+import levvel.io.model.Blog;
+import levvel.io.model.Comment;
+import levvel.io.service.BlogService;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.http.ResponseEntity;
+
+import java.io.IOException;
+import java.util.List;
+
+import static org.mockito.Mockito.mock;
+
+public class BlogControllerTest extends BlogTest {
+
+    private BlogController blogController;
+
+    private Blog blog;
+    private Comment comment;
+
+    @BeforeEach
+    void setup() throws IOException {
+        BlogService blogService = mock(BlogService.class);
+
+        blogController = new BlogController(blogService);
+
+        blog = getBlogFromResource();
+        comment = getCommentFromResource();
+    }
+
+    @Test
+    void testAddBlog() {
+        ResponseEntity<Blog> response = blogController.addBlog(blog);
+
+        Assertions.assertEquals(response.getStatusCodeValue(), 200);
+    }
+
+    @Test
+    void testGetBlog() {
+        ResponseEntity<Blog> response = blogController.getBlog(ID);
+
+        Assertions.assertEquals(response.getStatusCodeValue(), 200);
+    }
+
+    @Test
+    void testAddComment() {
+        ResponseEntity<Comment> response = blogController.addComment(ID, comment);
+
+        Assertions.assertEquals(response.getStatusCodeValue(), 200);
+    }
+
+    @Test
+    void testGetComment() {
+        ResponseEntity<List<Comment>> response = blogController.getComments(ID);
+
+        Assertions.assertEquals(response.getStatusCodeValue(), 200);
+    }
+}

src/test/java/levvel/io/service/BlogServiceImplTest.java

@@ -0,0 +1,87 @@
+package levvel.io.service;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import levvel.io.BlogTest;
+import levvel.io.data.BlogRepository;
+import levvel.io.data.CommentRepository;
+import levvel.io.model.Blog;
+import levvel.io.model.Comment;
+import levvel.io.model.CommentList;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+import static java.util.Optional.ofNullable;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.*;
+
+public class BlogServiceImplTest extends BlogTest {
+
+    private BlogService blogService;
+
+    private BlogRepository blogRepository;
+    private CommentRepository commentRepository;
+
+    private Blog blog;
+    private Comment comment;
+    private CommentList commentList;
+
+    @BeforeEach
+    void setup() throws IOException {
+        blogRepository = mock(BlogRepository.class);
+        commentRepository = mock(CommentRepository.class);
+
+        blogService = new BlogServiceImpl(blogRepository, commentRepository);
+
+        blog = getBlogFromResource();
+        comment = getCommentFromResource();
+
+        commentList = new CommentList(blog.getId(), new ArrayList<>());
+    }
+
+    @Test
+    void testAddBlog() {
+        blogService.addBlog(blog);
+
+        verify(blogRepository).save(any());
+        verify(commentRepository).save(any());
+    }
+
+    @Test
+    void testGetBlog() {
+        when(blogRepository.findById(any())).thenReturn(ofNullable(blog));
+
+        Blog returnedBlog = blogService.getBlog(ID);
+
+        verify(blogRepository).findById(ID);
+
+        Assertions.assertEquals(blog, returnedBlog);
+    }
+
+    @Test
+    void testAddComment() {
+        when(commentRepository.findById(any())).thenReturn(ofNullable(commentList));
+
+        blogService.addComment(ID, comment);
+
+        verify(commentRepository).findById(any());
+        verify(commentRepository).save(any());
+    }
+
+    @Test
+    void testGetComments() {
+        when(commentRepository.findById(any())).thenReturn(ofNullable(commentList));
+
+        List<Comment> comments = blogService.getComments(ID);
+
+        verify(commentRepository).findById(any());
+
+        Assertions.assertEquals(comments, commentList.getComments());
+    }
+}