Package com.example.blogs.app.api.post.service

Class TransactionalFileUploader

java.lang.Object

com.example.blogs.app.api.post.service.TransactionalFileUploader

@Service
public class TransactionalFileUploader
extends Object

Handles file uploads with automatic rollback when database transactions fail.

Constructor Summary

Constructors

Constructor	Description
TransactionalFileUploader()

Method Summary

Modifier and Type	Method	Description
FileEntity	uploadWithTransactionRollback(MultipartFile file, String path)	Uploads a file and registers a transaction synchronization callback to delete it if the transaction rolls back.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TransactionalFileUploader

public TransactionalFileUploader()

Method Details

uploadWithTransactionRollback

public FileEntity uploadWithTransactionRollback(MultipartFile file,
 String path)

Uploads a file and registers a transaction synchronization callback to delete it if the transaction rolls back. Ensures uploaded files are cleaned up from S3 when the associated database transaction fails.

Parameters:

file - the multipart file to upload

path - the storage path where the file should be uploaded

Returns:

the uploaded file entity with metadata

Throws:

FailedToRollbackS3FileException - if the rollback cleanup fails