[REFACTOR] 파일 시스템 버전에 따른 로직 분리 (#271)

* feat: 파일 버전 표시를 위한 클래스 추가

-  yml 파일의 값을 읽은 후, 로컬/프로덕션 버전 정보를 저장하는 클래스 작성

* feat: 파일 응답 클래스 구조 변경

- accessURI를 source로 변경
- 파일 버전 정보(environment) 추가 - LOCAL / PROD

* fix: 쿼리문 오류 수정

- PK 관련 에러 수정

* refactor: 버전 별 처리 방법 변경

- LOCAL 버전의 경우 파일을 다운로드 받아 BASE64로 인코딩한 문자열을 반환하도록 변경
- PROD 버전의 경우 파일에 접근할 수 있는 URI 반환

src/main/java/com/genius/gitget/global/file/dto/FileEnv.java

@@ -0,0 +1,19 @@
+package com.genius.gitget.global.file.dto;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.env.Environment;
+import org.springframework.stereotype.Component;
+
+@Component
+public class FileEnv {
+    private static Environment environment;
+
+    @Autowired
+    public FileEnv(Environment env) {
+        environment = env;
+    }
+
+    public static String getFileEnvironment() {
+        return environment.getProperty("file.mode").toUpperCase();
+    }
+}

src/main/java/com/genius/gitget/global/file/dto/FileResponse.java

@@ -2,13 +2,14 @@
 
 public record FileResponse(
         Long fileId,
-        String accessURI) {
+        String source,
+        String environment) {
 
     public static FileResponse createExistFile(Long filesId, String accessURI) {
-        return new FileResponse(filesId, accessURI);
+        return new FileResponse(filesId, accessURI, FileEnv.getFileEnvironment());
     }
 
     public static FileResponse createNotExistFile() {
-        return new FileResponse(0L, "");
+        return new FileResponse(0L, "", FileEnv.getFileEnvironment());
     }
 }

src/main/java/com/genius/gitget/global/file/service/LocalFileService.java

@@ -13,8 +13,11 @@
 import com.genius.gitget.global.util.exception.BusinessException;
 import java.io.File;
 import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.StandardCopyOption;
+import java.util.Base64;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.core.io.UrlResource;
 import org.springframework.web.multipart.MultipartFile;
 
 public class LocalFileService implements FileService {
@@ -45,7 +48,13 @@ public FileDTO upload(MultipartFile multipartFile, FileType fileType) {
 
     @Override
     public String getFileAccessURI(Files files) {
-        return files.getFileURI();
+        try {
+            UrlResource urlResource = new UrlResource("file:" + files.getFileURI());
+            byte[] encode = Base64.getEncoder().encode(urlResource.getContentAsByteArray());
+            return new String(encode, StandardCharsets.UTF_8);
+        } catch (IOException e) {
+            return "";
+        }
     }
 
     @Override

src/main/java/com/genius/gitget/global/file/service/S3FileService.java

@@ -13,14 +13,14 @@
 import com.genius.gitget.global.file.dto.UpdateDTO;
 import com.genius.gitget.global.util.exception.BusinessException;
 import java.io.IOException;
-import java.net.URL;
 import org.springframework.web.multipart.MultipartFile;
 
 public class S3FileService implements FileService {
     private final AmazonS3 amazonS3;
     private final FileUtil fileUtil;
     private final String bucket;
     private final String cloudFrontDomain;
+
     public S3FileService(AmazonS3 amazonS3, FileUtil fileUtil, String bucket, String cloudFrontDomain) {
         this.amazonS3 = amazonS3;
         this.fileUtil = fileUtil;
@@ -30,8 +30,7 @@ public S3FileService(AmazonS3 amazonS3, FileUtil fileUtil, String bucket, String
 
     @Override
     public String getFileAccessURI(Files files) {
-        URL url = amazonS3.getUrl(bucket, files.getFileURI());
-        return cloudFrontDomain + url.getFile();
+        return cloudFrontDomain + files.getFileURI();
     }
 
     @Override

src/main/resources/data.sql

@@ -44,9 +44,8 @@ FROM (SELECT 1                      AS identifier,
              'PROFILE_FRAME') AS new_items
 WHERE (SELECT COUNT(*) FROM item) < 3;
 
-INSERT INTO users (`point`, user_id, nickname, information, identifier, tags, provider_info, `role`)
+INSERT INTO users (`point`, nickname, information, identifier, tags, provider_info, `role`)
 SELECT 0,
-       104,
        'Guest',
        '자기 소개입니다.',
        'Guest',

src/test/java/com/genius/gitget/global/file/domain/FilesTest.java

@@ -20,13 +20,13 @@ public void should_updateFiles_when_passUpdateDTO() {
                 .fileType(FileType.INSTANCE)
                 .originalFilename("originalFilename")
                 .savedFilename("savedFilename")
-                .fileURI("accessURI")
+                .fileURI("source")
                 .build();
 
         UpdateDTO updateDTO = UpdateDTO.builder()
                 .savedFilename("new savedFilename")
                 .originalFilename("new originalFilename")
-                .fileURI("new accessURI")
+                .fileURI("new source")
                 .build();
 
         //when