Merge pull request #9 from team-moodit/MOODIT-33-파일-정보-DB-저장-로직-구현

feat: 파일 메타데이터 저장을 위한 FileEntity 및 JpaRepository 추가

Author: jake8771

src/main/java/com/team/moodit/storage/db/core/BaseIdEntity.java

@@ -0,0 +1,15 @@
+package com.team.moodit.storage.db.core;
+
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.MappedSuperclass;
+import lombok.Getter;
+
+@Getter
+@MappedSuperclass
+abstract public class BaseIdEntity {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+}

src/main/java/com/team/moodit/storage/db/core/FileEntity.java

@@ -0,0 +1,34 @@
+package com.team.moodit.storage.db.core;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Table;
+import java.time.LocalDateTime;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.CreationTimestamp;
+
+@Getter
+@Entity
+@Table(name = "file")
+@AllArgsConstructor
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class FileEntity extends BaseIdEntity {
+    private Long userId;
+    private String objectKey;
+    private String originalName;
+    private String contentType;
+    private Long size;
+
+    public FileEntity(Long userId, String objectKey, String originalName, String contentType, Long size) {
+        this.userId = userId;
+        this.objectKey = objectKey;
+        this.originalName = originalName;
+        this.contentType = contentType;
+        this.size = size;
+    }
+
+    @CreationTimestamp
+    private LocalDateTime createdAt;
+}

src/main/java/com/team/moodit/storage/db/core/FileRepository.java

@@ -0,0 +1,6 @@
+package com.team.moodit.storage.db.core;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface FileRepository extends JpaRepository<FileEntity, Long> {
+}

src/main/java/com/team/moodit/storage/db/s3/S3Uploader.java

@@ -1,7 +1,5 @@
 package com.team.moodit.storage.db.s3;
 
-import com.team.moodit.support.error.ApiException;
-import com.team.moodit.support.error.ErrorType;
 import java.io.IOException;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;

src/main/java/com/team/moodit/support/file/FileUploader.java

@@ -1,5 +1,7 @@
 package com.team.moodit.support.file;
 
+import com.team.moodit.storage.db.core.FileEntity;
+import com.team.moodit.storage.db.core.FileRepository;
 import com.team.moodit.storage.db.s3.S3Uploader;
 import com.team.moodit.support.error.ApiException;
 import com.team.moodit.support.error.ErrorType;
@@ -16,6 +18,7 @@
 @RequiredArgsConstructor
 public class FileUploader {
     private final S3Uploader s3Uploader;
+    private final FileRepository fileRepository;
 
     @Value("${storage.s3.endpoint}") private String endpoint;
     @Value("${storage.s3.bucket}") private String bucket;
@@ -24,13 +27,21 @@ public UploadResult upload(Long userId, MultipartFile file) {
         try {
             String objectKey = uploadToS3(file);
 
-            // TODO: FileEntity 등 저장 로직 추가
+            FileEntity savedFile = fileRepository.save(
+                    new FileEntity(
+                            userId,
+                            objectKey,
+                            file.getOriginalFilename(),
+                            file.getContentType(),
+                            file.getSize()
+                    )
+            );
 
             return new UploadResult(
-                    1L,
+                    savedFile.getId(),
                     endpoint + "/" + bucket + "/" + objectKey
             );
-        } catch (IOException e) {
+        } catch (Exception e) {
             log.error("[FileUploader] userId: {}, filename: {}. size: {} bytes, message: {}", userId, file.getOriginalFilename(), file.getSize(), e.getMessage(), e);
             throw new ApiException(ErrorType.FILE_UPLOADING_FAILED);
         }