org.mycore.frontend.fileupload
Class MCRUploadHandlerIFS

java.lang.Object
  org.mycore.frontend.fileupload.MCRUploadHandler
      org.mycore.frontend.fileupload.MCRUploadHandlerIFS

Direct Known Subclasses:

MCRSWFUploadHandlerIFS

public class MCRUploadHandlerIFS
extends MCRUploadHandler

handles uploads via the UploadApplet and store files directly into the IFS.

Version:

$Revision: 14986 $ $Date: 2009-03-20 21:41:45 +0100 (Fri, 20 Mar 2009) $

Author:

Thomas Scheffler (yagee)

See Also:

MCRUploadHandler

Field Summary

protected MCRDerivate	derivate
protected boolean	newDerivate
protected MCRDirectory	rootDir

Fields inherited from class org.mycore.frontend.fileupload.MCRUploadHandler

logger, uploadID, url

Constructor Summary

MCRUploadHandlerIFS(String docId, String derId, String url)

Method Summary

boolean	acceptFile(String path, String checksum, long length) Message from UploadApplet If you want all files transfered omit this method
protected void	commitTransaction()
protected void	createNewDerivate(String docId, MCRObjectID newDerID)
void	finishUpload() Finish upload, store derivate
protected static String	getMainFilePath(MCRDirectory root)
protected void	init(String docId, String derId)
long	receiveFile(String path, InputStream in, long length, String md5) When the applet uploads a file, this method is called so that the UploadHandler subclass can store the file on the server side.
protected void	rollbackTransaction()
protected static void	setDefaultPermissions(MCRObjectID derID)
protected void	startTransaction()
void	startUpload(int numFiles) Start Upload for MyCoRe

Methods inherited from class org.mycore.frontend.fileupload.MCRUploadHandler

cancelUpload, getID, getRedirectURL, unregister

Methods inherited from class java.lang.Object

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

Field Detail

derivate

protected MCRDerivate derivate

rootDir

protected MCRDirectory rootDir

newDerivate

protected boolean newDerivate

Constructor Detail

MCRUploadHandlerIFS

public MCRUploadHandlerIFS(String docId,
                           String derId,
                           String url)

Method Detail

init

protected void init(String docId,
                    String derId)

startUpload

public void startUpload(int numFiles)
                 throws Exception

Start Upload for MyCoRe

Specified by:

startUpload in class MCRUploadHandler

Parameters:

numFiles - the number of files that the applet will upload

Throws:

Exception

acceptFile

public boolean acceptFile(String path,
                          String checksum,
                          long length)
                   throws Exception

Message from UploadApplet If you want all files transfered omit this method

Overrides:

acceptFile in class MCRUploadHandler

Parameters:

path - file name

checksum - md5 checksum of of file

length - the length of the file in bytes (file size)

Returns:

true transfer file false don't send file

Throws:

Exception

receiveFile

public long receiveFile(String path,
                        InputStream in,
                        long length,
                        String md5)
                 throws Exception

Description copied from class: MCRUploadHandler

When the applet uploads a file, this method is called so that the UploadHandler subclass can store the file on the server side. When the UploadHandler could read less than length bytes from the InputStream at the time the InputStream has no data any more, the user at the remote side canceled upload during file transfer. The UploadHandler then can decide to delete the file, but must return the number of bytes stored. The UploadHandler can also compare the MD5 checksum calculated at the client side with its own checksum, to detect magical transfer errors. This method is not covered by a database transaction. The implementation has to handle transactions by itself.

Specified by:

receiveFile in class MCRUploadHandler

Parameters:

path - the path and filename of the file

in - the inputstream to read the content of the file from

length - the total file size as number of bytes. This may be 0, meaning that the file is empty or the file size is not known.

md5 - the md5 checksum calculated at the client applet side. This may be null, meaning that the md5 checksum is not known.

Returns:

the number of bytes that have been stored.

Throws:

Exception

finishUpload

public void finishUpload()
                  throws Exception

Finish upload, store derivate

Specified by:

finishUpload in class MCRUploadHandler

Throws:

Exception

createNewDerivate

protected void createNewDerivate(String docId,
                                 MCRObjectID newDerID)

getMainFilePath

protected static String getMainFilePath(MCRDirectory root)

setDefaultPermissions

protected static void setDefaultPermissions(MCRObjectID derID)

startTransaction

protected void startTransaction()

commitTransaction

protected void commitTransaction()

rollbackTransaction

protected void rollbackTransaction()