Backend Base

.vscode/settings.json

@@ -1,4 +1,5 @@
 {
+  // https://code.visualstudio.com/docs/java/java-debugging
   "java.configuration.updateBuildConfiguration": "automatic",
   "java.compile.nullAnalysis.mode": "automatic",
   "java.dependency.syncWithFolderExplorer": true,
@@ -8,7 +9,9 @@
   },
   "java.completion.favoriteStaticMembers": [
     "org.hamcrest.Matchers.*",
+    "org.junit.jupiter.api.*",
     "org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*",
     "org.springframework.test.web.servlet.result.MockMvcResultMatchers.*"
-  ]
+  ],
+  "java.debug.settings.hotCodeReplace": "manual" // change to "auto" if you want to enable
 }

back/README.md

@@ -5,20 +5,28 @@
    - [`ktlint --format`](https://github.com/pinterest/ktlint?tab=readme-ov-file#quick-start)
 
 
-com.example
-  ├── core
-  │   ├── domain1
-  │   │   ├── subcontext1
-  │   │   ├── subcontext2
-  │   │   └── common
-  │   ├── domain2
-  │   └── shared
-  │       └── metadata
-  ├── api
-  │   ├── controller
-  │   └── service
-  └── util
-
-TODO: refactor project structure 
-
-TODO: add questions
+# 2. 표현식 Expression
+1. [x] 숫자 연산자 우선순위 오해 OperationPriority
+   - [x] 이진 시프트 BinaryShift
+   - [x] 비트 연산자 BitwiseOperator
+2. [x] 조건식의 괄호 누락 MissingParentheses
+   - [x] &&, ||의 우선순위 LogicalOperatorPrecedence
+   - [x] 조건 연산자와 덧셈 TernaryWithAddition
+   - [x] 조건 연산자와 null 검사 TernaryWithNullCheck
+3. [ ] 덧셈이 아닌 결합으로 작동 StringConcatenation
+4. [ ] 멀티라인 문자열 리터럴 MultilineStringLiteral
+5. [ ] 단항 덧셈 연산자 UnaryPlusOperator
+6. [ ] 조건 표현식의 묵시적 타입 변환 ImplicitTypeConversion
+   - [ ] 조건 표현식의 박싱된 숫자 BoxedNumberConditional
+   - [ ] 중첩 조건 표현식 NestedConditional
+7. [ ] 비단락 논리 연산자 사용 NonShortCircuitOperator
+8. [ ] &&와 || 혼용 MixedLogicalOperators
+9. [ ] 잘못된 가변 인수 호출 VarArgsIssues
+   - [ ] 모호한 가변 인수 호출 AmbiguousVarArgs
+   - [ ] 배열과 컬렉션 혼용 ArrayCollectionMixup
+   - [ ] 가변 인수에 원시 배열 전달 PrimitiveArrayToVarArgs 
+10. [ ] 조건 연산자와 가변 인수 호출 TernaryWithVarArgs
+11. [ ] 반환값 무시 IgnoredReturnValue
+12. [ ] 새롭게 생성된 객체를 사용하지 않음 UnusedObjects
+13. [ ] 잘못된 메서드를 참조하는 바인딩 IncorrectMethodBinding
+14. [ ] 메서드 참조 시 잘못된 메서드 지정 WrongMethodReference

back/build.gradle.kts

@@ -41,9 +41,8 @@ dependencies {
     testCompileOnly("org.projectlombok:lombok")
     testAnnotationProcessor("org.projectlombok:lombok")
 
-    // Document RESTful services by combining hand-written with Asciidoctor
-    // and auto-generated snippets produced with Spring MVC Test
-    testImplementation("org.springframework.restdocs:spring-restdocs-mockmvc")
+  // SpringDoc OpenAPI UI for REST API documentation
+    implementation("org.springdoc:springdoc-openapi-starter-webmvc-ui:2.8.5")
 
     // Spring Data base dependency without any database-specific functionality
     implementation("org.springframework.data:spring-data-commons")

back/src/main/java/com/example/mistakes/QuestionEntityBuilder.java

@@ -0,0 +1,19 @@
+package com.example.mistakes;
+
+import com.example.mistakes.api.questions.QuestionEntity;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class QuestionEntityBuilder<T> {
+  public QuestionEntity build(Class<T> cls) {
+    return new QuestionEntity(cls.getCanonicalName());
+  }
+
+  public static QuestionEntity of(Class<?> cls) {
+    return new QuestionEntity(cls.getCanonicalName());
+  }
+
+  public static Iterable<QuestionEntity> of(Class<?>... cls) {
+    return List.of(cls).stream().map(QuestionEntityBuilder::of).collect(Collectors.toList());
+  }
+}

back/src/main/java/com/example/mistakes/api/hello/HelloDTO.java

@@ -1,6 +1,6 @@
 package com.example.mistakes.api.hello;
 
-import com.example.mistakes.base.type.definition.Message;
+import com.example.mistakes.base.type.Message;
 
 @Deprecated
 public record HelloDTO(String message) implements Message {}

back/src/main/java/com/example/mistakes/api/questions/ChaptersController.java

@@ -0,0 +1,49 @@
+package com.example.mistakes.api.questions;
+
+import com.example.mistakes.base.type.ResponseMany;
+import com.example.mistakes.service.QuestionService;
+import java.util.List;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api")
+public class ChaptersController {
+  @Autowired private final QuestionService service;
+
+  public ChaptersController(QuestionService service) {
+    this.service = service;
+  }
+
+  private ResponseEntity<ResponseMany<QuestionEntity>> _response(Iterable<QuestionEntity> data) {
+    final var dto = new ResClassQuestion(data);
+    return ResponseEntity.ok().body(dto);
+  }
+
+  @GetMapping("/{chapterName}")
+  public ResponseEntity<ResponseMany<QuestionEntity>> getAllMistakesInChapter(
+      @PathVariable String chapterName) {
+    final var data = this.service.findAllByChapterName(chapterName);
+    return _response(data);
+  }
+
+  @GetMapping("/{chapterName}/{mistakeId}")
+  public ResponseEntity<ResponseMany<QuestionEntity>> getExamplesInMistake(
+      @PathVariable String chapterName, @PathVariable Integer mistakeId) {
+    final var data = this.service.findAllByMistakeId(mistakeId);
+    return _response(data);
+  }
+
+  @GetMapping("/{chapterName}/{mistakeId}/{exampleId}")
+  public ResponseEntity<ResponseMany<QuestionEntity>> getOneExample(
+      @PathVariable String chapterName,
+      @PathVariable Integer mistakeId,
+      @PathVariable Integer exampleId) {
+    final var data = this.service.findOne(chapterName, mistakeId, exampleId);
+    return _response(List.of(data));
+  }
+}

back/src/main/java/com/example/mistakes/api/questions/ExamplesController.java

@@ -0,0 +1,37 @@
+package com.example.mistakes.api.questions;
+
+import com.example.mistakes.base.type.ResponseMany;
+import com.example.mistakes.service.QuestionService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/examples")
+public class ExamplesController {
+  @Autowired private final QuestionService service;
+
+  public ExamplesController(QuestionService service) {
+    this.service = service;
+  }
+
+  private ResponseEntity<ResponseMany<QuestionEntity>> _response(Iterable<QuestionEntity> data) {
+    final var dto = new ResClassQuestion(data);
+    return ResponseEntity.ok().body(dto);
+  }
+
+  @GetMapping("/")
+  public ResponseEntity<ResponseMany<QuestionEntity>> getAll() {
+    final var data = this.service.findAll();
+    return _response(data);
+  }
+
+  @GetMapping("/{id}")
+  public ResponseEntity<ResponseMany<QuestionEntity>> getOneById(@PathVariable("id") Integer id) {
+    final var data = this.service.findAllByMistakeId(id);
+    return _response(data);
+  }
+}