Package de.xima.fc.api.file

Class FileAPI

java.lang.Object

de.xima.fc.api.ASubAPI

de.xima.fc.api.file.FileAPI

public class FileAPI
extends ASubAPI

API class for interaction with files.

Author:

XIMA MEDIA GmbH

Constructor Summary

Constructors

Constructor	Description
FileAPI()

Method Summary

Modifier and Type	Method	Description
<D extends IFileDataEntity<F>,F extends IKeyDependentFileEntity<E,D>,E extends IFileMapProviding<F,D>> byte[]	getFileData(UserContext uc, E entity, String fileKey)	Returns the file data of a file belonging to the given entity with the given file key.
<E extends IFileDataEntity<?>,T extends IFileProviding<?,E>> byte[]	getFileData(UserContext uc, T entity)
<F extends IFileEntity<?,?>> byte[]	getFileDataFromFileEntity(UserContext uc, F fileEntity)	Returns the file data of the given file entity.
<T extends IFileEntity<?,?>> byte[]	getFileEntityData(UserContext uc, T fileEntity)
<T extends IFileEntity<?,?>> InputStream	getFileEntityStream(UserContext uc, T fileEntity)
<D extends IFileDataEntity<F>,F extends IKeyDependentFileEntity<E,D>,E extends IFileMapProviding<F,D>> InputStream	getFileStream(UserContext uc, E entity, String fileKey)	Returns the file data of a file belonging to the given entity with the given file key.
<E extends IFileDataEntity<?>,T extends IFileProviding<?,E>> InputStream	getFileStream(UserContext uc, T entity)	Method for downloading a file by the Attachment ID.
<F extends IFileEntity<?,?>> InputStream	getFileStreamFromFileEntity(UserContext uc, F fileEntity)	Returns the file data of the given file entity.
<D extends IFileDataEntity<F>,F extends IKeyDependentFileEntity<E,D>,E extends IFileMapProviding<F,D>> byte[]	getUncachedFileData(UserContext uc, E entity, String fileKey)	Returns the file data of a file belonging to the given entity with the given file key.
<E extends IFileDataEntity<?>,T extends IFileProviding<?,E>> byte[]	getUncachedFileData(UserContext uc, T entity)
<T extends IFileEntity<?,?>> byte[]	getUncachedFileEntityData(UserContext uc, T fileEntity)
<E extends IFileDataEntity<?>,T extends IFileEntity<?,E>> T	updateFileData(UserContext uc, T entity, byte[] data)

Methods inherited from class de.xima.fc.api.ASubAPI

getHandlerProvider

Methods inherited from class java.lang.Object

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

Constructor Detail

FileAPI

public FileAPI()

Method Detail

getFileStream

public <E extends IFileDataEntity<?>,T extends IFileProviding<?,E>> InputStream getFileStream(UserContext uc,
                                                                                                          T entity)
                                                                                                   throws FileNotFoundException

Method for downloading a file by the Attachment ID.

Parameters:

uc - UserContext the user context in which the action is to be performed.

entity - IFileDataEntity the searched file.

Returns:

InputStream on the searched file.

Throws:

FileNotFoundException - if the file operation couldn't executed successful and a error occurs.

Since:

2.4.3

getFileStream

public <D extends IFileDataEntity<F>,F extends IKeyDependentFileEntity<E,D>,E extends IFileMapProviding<F,D>> InputStream getFileStream(UserContext uc,
                                                                                                                                                                E entity,
                                                                                                                                                                String fileKey)

Returns the file data of a file belonging to the given entity with the given file key. If the file is not cache-able or not yet cached it will be read from the database otherwise it will be retrieved from the file cache.

Type Parameters:

E - file map providing base entity type

D - file data entity type

F - file entity type

Parameters:

uc - user context for database transactions.

entity - that owns the file

fileKey - key identifying the the file entity

Returns:

file data of the request file as an input stream.

Since:

8.0.0

getFileStreamFromFileEntity

public <F extends IFileEntity<?,?>> InputStream getFileStreamFromFileEntity(UserContext uc,
                                                                                  F fileEntity)

Returns the file data of the given file entity. If the file is not cache-able or not yet cached it will be read from the database otherwise it will be retrieved from the file cache.

Type Parameters:

F - file entity type

Parameters:

uc - user context for database transactions.

fileEntity - that holds the file data

Returns:

file data of the request file as an input stream.

Since:

8.0.0

getFileEntityStream

public <T extends IFileEntity<?,?>> InputStream getFileEntityStream(UserContext uc,
                                                                          T fileEntity)
                                                                   throws FileNotFoundException

Throws:

FileNotFoundException

getFileData

public <E extends IFileDataEntity<?>,T extends IFileProviding<?,E>> byte[] getFileData(UserContext uc,
                                                                                                   T entity)
                                                                                            throws IOException

Throws:

IOException

getFileData

public <D extends IFileDataEntity<F>,F extends IKeyDependentFileEntity<E,D>,E extends IFileMapProviding<F,D>> byte[] getFileData(UserContext uc,
                                                                                                                                                         E entity,
                                                                                                                                                         String fileKey)

Returns the file data of a file belonging to the given entity with the given file key. If the file is not cache-able or not yet cached it will be read from the database otherwise it will be retrieved from the file cache.

Type Parameters:

E - file map providing base entity type

D - file data entity type

F - file entity type

Parameters:

uc - user context for database transactions.

entity - that owns the file

fileKey - key identifying the the file entity

Returns:

file data of the request file as a byte array.

Since:

8.0.0

getFileDataFromFileEntity

public <F extends IFileEntity<?,?>> byte[] getFileDataFromFileEntity(UserContext uc,
                                                                           F fileEntity)

Returns the file data of the given file entity. If the file is not cache-able or not yet cached it will be read from the database otherwise it will be retrieved from the file cache.

Type Parameters:

F - file entity type

Parameters:

uc - user context for database transactions.

fileEntity - that holds the file data

Returns:

file data of the request file as a byte array.

Since:

8.0.0

getFileEntityData

public <T extends IFileEntity<?,?>> byte[] getFileEntityData(UserContext uc,
                                                                   T fileEntity)
                                                            throws IOException

Throws:

IOException

getUncachedFileData

public <E extends IFileDataEntity<?>,T extends IFileProviding<?,E>> byte[] getUncachedFileData(UserContext uc,
                                                                                                           T entity)

getUncachedFileData

public <D extends IFileDataEntity<F>,F extends IKeyDependentFileEntity<E,D>,E extends IFileMapProviding<F,D>> byte[] getUncachedFileData(UserContext uc,
                                                                                                                                                                 E entity,
                                                                                                                                                                 String fileKey)

Returns the file data of a file belonging to the given entity with the given file key.

Type Parameters:

E - file map providing base entity type

D - file data entity type

F - file entity type

Parameters:

uc - user context for database transactions.

entity - that owns the file

fileKey - key identifying the the file entity

Returns:

file data of the request file as a byte array.

Since:

8.0.0

getUncachedFileEntityData

public <T extends IFileEntity<?,?>> byte[] getUncachedFileEntityData(UserContext uc,
                                                                           T fileEntity)

updateFileData

public <E extends IFileDataEntity<?>,T extends IFileEntity<?,E>> T updateFileData(UserContext uc,
                                                                                              T entity,
                                                                                              byte[] data)