Feat: example controller 추가 (#20)

src/main/java/com/dnd/runus/domain/example/ExampleController.java

@@ -0,0 +1,68 @@
+package com.dnd.runus.domain.example;
+
+import com.dnd.runus.global.exception.BusinessException;
+import com.dnd.runus.global.exception.type.ApiErrorType;
+import com.dnd.runus.global.exception.type.ErrorType;
+import io.swagger.v3.oas.annotations.Operation;
+import lombok.Getter;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageImpl;
+import org.springframework.data.domain.Pageable;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+
+import java.time.Instant;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/api/v1/examples")
+public class ExampleController { // FIXME: 추후 삭제
+    @Operation(summary = "페이징 테스트, 복잡한 페이징(pageable) 결과는 나중에 정해서 간략화해도 좋을 것 같아요")
+    @GetMapping("/pagination")
+    public Page<?> a(Pageable pageable) {
+        List<String> list = List.of("a", "b", "c", "d", "e", "f", "g", "h", "i", "j");
+        List<String> sublist = list.subList(
+                (int) pageable.getOffset(), Math.min((int) pageable.getOffset() + pageable.getPageSize(), list.size()));
+        return new PageImpl<>(sublist, pageable, list.size());
+    }
+
+    @Operation(summary = "input 테스트, input을 반환합니다.")
+    @GetMapping("/input")
+    public String name(@RequestParam String input) {
+        return input;
+    }
+
+    @Operation(summary = "header 테스트, request와 함께 입력한 header들을 반환합니다.")
+    @GetMapping("/headers")
+    public Map<String, String> headers(@RequestHeader(value = "authorization") Map<String, String> headers) {
+        return headers;
+    }
+
+    @Operation(summary = "데이터 테스트, 시간 관련 형식도 정하면 좋을 것 같아요")
+    @GetMapping("/data")
+    public MyData data() {
+        return new MyData();
+    }
+
+    @Getter
+    public static class MyData {
+        int a;
+        String b = "b";
+        Instant c = Instant.now();
+        String d = LocalDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME);
+    }
+
+    @GetMapping("/empty")
+    @ResponseStatus(HttpStatus.OK)
+    public void empty() {}
+
+    @Operation(summary = "COOKIE_NOT_FOND 에러 테스트")
+    @ApiErrorType({ErrorType.COOKIE_NOT_FOND, ErrorType.FAILED_VALIDATION})
+    @GetMapping("/errors")
+    public String errors() {
+        throw new BusinessException(ErrorType.COOKIE_NOT_FOND, "쿠키 이름~~");
+    }
+}