Package org.exoplatform.commons.file.services.impl

Class FileServiceImpl

java.lang.Object

org.exoplatform.commons.file.services.impl.FileServiceImpl

All Implemented Interfaces:

FileService

public class FileServiceImpl
extends Object
implements FileService

File Service which stores the file metadata in a database, and uses a BinaryProvider to store the file binary. Created by The eXo Platform SAS Author : eXoPlatform exo@exoplatform.com

Constructor Summary

Constructors

Constructor	Description
FileServiceImpl(DataStorage dataStorage, BinaryProvider resourceProvider, NameSpaceService nameSpaceService, org.exoplatform.services.listener.ListenerService listenerService)

Method Summary

Modifier and Type	Method	Description
FileInfo	deleteFile(long id)	Delete file with the given id The file is not physically deleted, it is only a logical deletion
FileItem	getFile(long id)	Get the file (info + binary) of the given id
FileInfo	getFileInfo(long id)	Get only the file info of the given id
List<FileInfo>	getFileInfoListByChecksum(String checksum)	Get the files info of the given checksum
List<FileItem>	getFilesByChecksum(String checksum)	Get the files (info + binary) of the given checksum
FileItem	updateFile(FileItem file)	Update the stored file using the provided DAO and binary provider.
FileItem	writeFile(FileItem file)	Store the file using the provided DAO and binary provider.

Methods inherited from class java.lang.Object

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

Constructor Details

FileServiceImpl

public FileServiceImpl(DataStorage dataStorage,
 BinaryProvider resourceProvider,
 NameSpaceService nameSpaceService,
 org.exoplatform.services.listener.ListenerService listenerService)

Method Details

getFileInfo

public FileInfo getFileInfo(long id)

Description copied from interface: FileService

Get only the file info of the given id

Specified by:

getFileInfo in interface FileService

Parameters:

id - file id

Returns:

file info

getFileInfoListByChecksum

public List<FileInfo> getFileInfoListByChecksum(String checksum)

Description copied from interface: FileService

Get the files info of the given checksum

Specified by:

getFileInfoListByChecksum in interface FileService

Parameters:

checksum - files checksum

Returns:

list file info

getFile

public FileItem getFile(long id)
                 throws FileStorageException

Description copied from interface: FileService

Get the file (info + binary) of the given id

Specified by:

getFile in interface FileService

Parameters:

id - file id

Returns:

fileItem

Throws:

FileStorageException - signals that an I/O exception of some sort has occurred.

writeFile

public FileItem writeFile(FileItem file)
                   throws FileStorageException,
IOException

Description copied from interface: FileService

Store the file using the provided DAO and binary provider. This method is transactional, meaning that if the write of the info or of the binary fails, nothing must be persisted.

Specified by:

writeFile in interface FileService

Parameters:

file - file item

Returns:

updated file item

Throws:

FileStorageException - signals that an error occur on save resource.

IOException - signals that an I/O exception of some sort has occurred.

updateFile

public FileItem updateFile(FileItem file)
                    throws FileStorageException,
IOException

Description copied from interface: FileService

Update the stored file using the provided DAO and binary provider. This method is transactional, meaning that if the write of the info or of the binary fails, nothing must be persisted.

Specified by:

updateFile in interface FileService

Parameters:

file - file item

Returns:

updated file item

Throws:

FileStorageException - signals that an error occur on save resource.

IOException - signals that an I/O exception of some sort has occurred.

deleteFile

public FileInfo deleteFile(long id)

Description copied from interface: FileService

Delete file with the given id The file is not physically deleted, it is only a logical deletion

Specified by:

deleteFile in interface FileService

Parameters:

id - Id of the file to delete

Returns:

file Info

getFilesByChecksum

public List<FileItem> getFilesByChecksum(String checksum)
                                  throws FileStorageException

Description copied from interface: FileService

Get the files (info + binary) of the given checksum

Specified by:

getFilesByChecksum in interface FileService

Parameters:

checksum - files checksum

Returns:

list fileItem

Throws:

FileStorageException - signals that an I/O exception of some sort has occurred.