Package org.ntnu.idi.idatt2106.sparesti.sparestibackend.service

Class FileSystemStorageService

java.lang.Object

org.ntnu.idi.idatt2106.sparesti.sparestibackend.service.FileSystemStorageService

@Service
public class FileSystemStorageService
extends Object

Service responsible for uploading and getting images for users, challenges and goals.

Since:

1.5.24

Version:

1.0

Author:

L.M.L. Nilsen

Constructor Summary

Constructors

Constructor	Description
FileSystemStorageService(UserService userService, ChallengeRepository challengeRepository, GoalRepository goalRepository, StorageProperties properties)	Constructor for FileSystemStorageService

Method Summary

Modifier and Type	Method	Description
org.springframework.core.io.Resource	getImage(String baseFilename, org.springframework.security.core.userdetails.UserDetails userDetails)	Gets an image for a user, challenge or goal.
void	save(org.springframework.web.multipart.MultipartFile file, String identifier, org.springframework.security.core.userdetails.UserDetails userDetails)	Save a valid image for a user, challenge or goal depending on the filename.

Methods inherited from class java.lang.Object

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

Constructor Details

FileSystemStorageService

public FileSystemStorageService(UserService userService,
 ChallengeRepository challengeRepository,
 GoalRepository goalRepository,
 StorageProperties properties)

Constructor for FileSystemStorageService

Parameters:

userService - User service for communicating with users

challengeRepository - Challenge repo for finding challenges

goalRepository - Goal repo for finding goals

properties - Storage properties

Method Details

save

public void save(org.springframework.web.multipart.MultipartFile file,
 String identifier,
 org.springframework.security.core.userdetails.UserDetails userDetails)
          throws IOException

Save a valid image for a user, challenge or goal depending on the filename. If the filename has the format {username}-P.png the image belongs to a user, {goalId}-G.png for goals and {challengeId}-C.png for a challenge. The valid filetypes are png, jpg, jpeg and gif.

Parameters:

file - The image file that is getting saved.

identifier - The filename without the extension.

userDetails - UserDetails for user who wants to save image.

Throws:

IOException - If the file is empty.

StorageException - If the file type is unsupported, or the filename format is wrong.

getImage

public org.springframework.core.io.Resource getImage(String baseFilename,
 org.springframework.security.core.userdetails.UserDetails userDetails)

Gets an image for a user, challenge or goal.

Parameters:

baseFilename - The name of the file, without the file extension.

userDetails - The UserDetails of the user wanting to get an image.

Returns:

Returns the file as a Resource.

Throws:

StorageException - If the challenge or goal does not belong to the user.