feat: file_store 테이블 생성

src/main/java/com/audio/core/book/domain/entity/BookVersion.java

@@ -40,11 +40,9 @@ public class BookVersion extends BaseEntity {
     @Enumerated(EnumType.STRING)
     private LengthPreset lengthPreset;
 
-    @Column(name = "book_s3_key")
-    private String bookS3Key;
+    private Long bookFileId;
 
-    @Column(name = "audio_s3_key")
-    private String audioS3Key;
+    private Long audioFileId;
 
     private String language = "en-Us";
 

src/main/java/com/audio/core/storage/domain/entity/FileStore.java

@@ -0,0 +1,31 @@
+package com.audio.core.storage.domain.entity;
+
+import com.audio.common.entity.BaseEntity;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.experimental.SuperBuilder;
+
+@Entity
+@SuperBuilder
+@AllArgsConstructor
+@NoArgsConstructor
+@Getter
+public class FileStore extends BaseEntity {
+
+    @Id
+    @GeneratedValue
+    private Long id;
+
+    private String objectKey;
+
+    private String originalFileName;
+
+    private String contentType;
+
+    private Long sizeBytes;
+}

src/main/java/com/audio/core/storage/domain/repository/FileStoreRepository.java

@@ -0,0 +1,9 @@
+package com.audio.core.storage.domain.repository;
+
+import com.audio.core.storage.domain.entity.FileStore;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface FileStoreRepository extends JpaRepository<FileStore, Long> {
+}

src/main/java/com/audio/core/storage/domain/service/FileStoreService.java

@@ -0,0 +1,30 @@
+package com.audio.core.storage.domain.service;
+
+import com.audio.core.storage.domain.entity.FileStore;
+import com.audio.core.storage.domain.repository.FileStoreRepository;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+@Slf4j
+public class FileStoreService {
+
+    private final FileStoreRepository fileStoreRepository;
+
+    public record SaveFileStoreRequest(String objectKey, String fileName, String contentType, Long sizeBytes) {}
+
+    @Transactional
+    public void save(SaveFileStoreRequest request) {
+        FileStore fileStore = FileStore.builder()
+            .objectKey(request.objectKey())
+            .originalFileName(request.fileName)
+            .contentType(request.contentType)
+            .sizeBytes(request.sizeBytes)
+            .build();
+
+        fileStoreRepository.save(fileStore);
+    }
+}

src/main/resources/db/changelog/changelog.yaml

@@ -4,4 +4,6 @@ databaseChangeLog:
   - includeAll:
       path: db/sql/book/251215
   - includeAll:
-      path: db/sql/filestore/251221
+      path: db/sql/filestore/251221
+  - includeAll:
+      path: db/sql/book/251222

src/main/resources/db/sql/book/251222/1_update_book_version.sql

@@ -0,0 +1,8 @@
+-- liquibase formatted sql
+-- changeset ijeongmin:1_update_book_version.sql
+alter table book_version
+    change column book_s3_key book_file_id bigint null,
+    change column audio_s3_key audio_file_id bigint null,
+
+    add index idx_book_version_book_file_id (book_file_id),
+    add index idx_book_version_audio_file_id (audio_file_id);