Seminar2

build.gradle

@@ -1,5 +1,7 @@
 plugins {
     id 'java'
+    id 'org.springframework.boot' version '3.3.4'
+    id 'io.spring.dependency-management' version '1.1.6'
 }
 
 group = 'org.example'
@@ -8,12 +10,24 @@ version = '1.0-SNAPSHOT'
 repositories {
     mavenCentral()
 }
+java{
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
+}
 
 dependencies {
+    implementation 'org.springframework.boot:spring-boot-starter'
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    testImplementation ' org.springframework.boot:sorubg-boot-starter-test'
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+
     testImplementation platform('org.junit:junit-bom:5.9.1')
     testImplementation 'org.junit.jupiter:junit-jupiter'
 
     implementation 'com.ibm.icu:icu4j:72.1'
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+    runtimeOnly 'com.h2database:h2'
 }
 
 test {

src/main/java/org/example/diary/DiaryApplication.java

@@ -0,0 +1,11 @@
+package org.example.diary;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DiaryApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(DiaryApplication.class, args);
+    }
+}

src/main/java/org/example/diary/api/DiaryController.java

@@ -0,0 +1,67 @@
+package org.example.diary.api;
+
+import org.example.diary.api.dto.request.DiaryCreateRequest;
+import org.example.diary.api.dto.request.DiaryGetByCategoryRequest;
+import org.example.diary.api.dto.request.DiaryUpdateRequest;
+import org.example.diary.api.dto.response.DiaryListResponse;
+import org.example.diary.api.dto.response.DiaryResponse;
+import org.example.diary.api.dto.response.DiarySpecificResponse;
+import org.example.diary.repository.entity.DiaryEntity;
+import org.example.diary.service.Diary;
+import org.example.diary.service.DiaryService;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@RestController
+public class DiaryController {
+
+    private final DiaryService diaryService;
+
+    public DiaryController(DiaryService diaryService) {
+        this.diaryService = diaryService;
+    }
+
+    @PostMapping("/diaries")
+    void post(@RequestBody DiaryCreateRequest request) {
+        diaryService.createDiary(request);
+    }
+
+    @GetMapping("/diaries")
+    ResponseEntity<DiaryListResponse> get() {
+        List<Diary> diaryList = diaryService.getList();
+        List<DiaryResponse> diaryResponseList = new ArrayList<>();
+        for (Diary diary : diaryList) {
+            diaryResponseList.add(new DiaryResponse(diary.getId(), diary.getTitle(),diary.getBody()));
+        }
+        return ResponseEntity.ok(new DiaryListResponse(diaryResponseList));
+    }
+
+    @GetMapping("/diaries/category")
+    ResponseEntity<DiaryListResponse> getByCategory(@RequestBody final DiaryGetByCategoryRequest request){
+        List<DiaryEntity> diaryList = diaryService.getListByCategory(request.category());
+        List<DiaryResponse> diaryResponseList = new ArrayList<>();
+        for (DiaryEntity diary : diaryList) {
+            diaryResponseList.add(new DiaryResponse(diary.getId(), diary.getTitle(), diary.getBody()));
+        }
+        return ResponseEntity.ok(new DiaryListResponse(diaryResponseList));
+    }
+
+    @GetMapping("/diaries/{id}")
+    ResponseEntity<DiarySpecificResponse> getSpecific(@PathVariable final long id) {
+        DiarySpecificResponse response =  diaryService.getDiarySpecific(id);
+        return ResponseEntity.ok(response);
+    }
+
+    @PatchMapping("/diaries/{id}")
+    void updateDiary(@PathVariable final long id,@RequestBody final DiaryUpdateRequest request) {
+        diaryService.updateDiary(id, request);
+    }
+
+    @DeleteMapping("/diaries/{id}")
+    void deleteDiary(@PathVariable final long id){
+        diaryService.deleteDiary(id);
+    }
+}

src/main/java/org/example/diary/api/dto/request/DiaryCreateRequest.java

@@ -0,0 +1,10 @@
+package org.example.diary.api.dto.request;
+
+import org.example.diary.repository.entity.Category;
+
+public record DiaryCreateRequest(
+        String title,
+        String body,
+        Category category
+){
+}

src/main/java/org/example/diary/api/dto/request/DiaryGetByCategoryRequest.java

@@ -0,0 +1,8 @@
+package org.example.diary.api.dto.request;
+
+import org.example.diary.repository.entity.Category;
+
+public record DiaryGetByCategoryRequest(
+        Category category
+) {
+}

src/main/java/org/example/diary/api/dto/request/DiaryUpdateRequest.java

@@ -0,0 +1,4 @@
+package org.example.diary.api.dto.request;
+
+public record DiaryUpdateRequest(String body) {
+}

src/main/java/org/example/diary/api/dto/response/DiaryListResponse.java

@@ -0,0 +1,15 @@
+package org.example.diary.api.dto.response;
+
+import java.util.List;
+
+public class DiaryListResponse {
+    private final List<DiaryResponse> diaryResponseList;
+
+    public List<DiaryResponse> getDiaryResponseList() {
+        return diaryResponseList;
+    }
+
+    public DiaryListResponse(List<DiaryResponse> diaryResponseList) {
+        this.diaryResponseList = diaryResponseList;
+    }
+}

src/main/java/org/example/diary/api/dto/response/DiaryResponse.java

@@ -0,0 +1,25 @@
+package org.example.diary.api.dto.response;
+
+public class DiaryResponse {
+    private final long id;
+    private final String title;
+    private final String body;
+
+    public DiaryResponse(long id, String title, String body) {
+        this.id = id;
+        this.title = title;
+        this.body = body;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getBody(){
+        return body;
+    }
+}

src/main/java/org/example/diary/api/dto/response/DiarySpecificResponse.java

@@ -0,0 +1,14 @@
+package org.example.diary.api.dto.response;
+
+import org.example.diary.repository.entity.Category;
+
+import java.time.LocalDateTime;
+
+public record DiarySpecificResponse(
+        long id,
+        String title,
+        String body,
+        Category category,
+        LocalDateTime date
+        ) {
+}

src/main/java/org/example/diary/repository/DiaryRepository.java

@@ -0,0 +1,21 @@
+package org.example.diary.repository;
+
+import org.example.diary.repository.entity.Category;
+import org.example.diary.repository.entity.DiaryEntity;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+import java.util.Optional;
+
+@Component
+public interface DiaryRepository extends JpaRepository<DiaryEntity,Long> {
+
+    @Query("SELECT d FROM DiaryEntity d ORDER BY LENGTH(d.body) ASC ")
+    List<DiaryEntity> findAllOrderByBodyLengthDesc();
+
+    Optional<DiaryEntity> findByTitle(String title);
+
+    List<DiaryEntity> findAllByCategory(Category category);
+}

src/main/java/org/example/diary/repository/adapter/DiaryDeleter.java

@@ -0,0 +1,23 @@
+package org.example.diary.repository.adapter;
+
+import org.example.diary.repository.entity.DiaryEntity;
+import org.example.diary.repository.DiaryRepository;
+import org.springframework.stereotype.Component;
+
+@Component
+public class DiaryDeleter {
+    private final DiaryRepository diaryRepository;
+    private final DiaryFinder diaryFinder;
+
+    public DiaryDeleter (DiaryRepository diaryRepository,DiaryFinder diaryFinder) {
+
+        this.diaryRepository = diaryRepository;
+        this.diaryFinder = diaryFinder;
+    }
+
+    public void deleteDiary(final long id){
+        DiaryEntity diaryEntity = diaryFinder.getDiaryEntity(id);
+        diaryRepository.delete(diaryEntity);
+    }
+}
+