Package org.alfresco.repo.content.cleanup

Class FileWipingContentCleanerListener

java.lang.Object

org.alfresco.repo.content.cleanup.FileWipingContentCleanerListener

All Implemented Interfaces:

ContentStoreCleanerListener

public class FileWipingContentCleanerListener
extends Object
implements ContentStoreCleanerListener

Simple listener that overwrites files with zeros.

Wire this into the EagerContentStoreCleaner as a listener and it will ensure that files have their contents overwritten with zeros before deletion. Note that this process does not affect the content lifecycyle in any way i.e. content will still follow the same orphan path as before.

Clearly wiring this up with a DeletedContentBackupCleanerListener is pointless as you will be making a copy of the before wiping it or end up copying a file full of zero depending on the order of the listeners.

Since:

4.0.1

Author:

Derek Hulley

Constructor Summary

Constructors

Constructor	Description
FileWipingContentCleanerListener()

Method Summary

Modifier and Type	Method	Description
void	beforeDelete(ContentStore sourceStore, String contentUrl)	Handle the notification that a store is about to be deleted
protected void	shred(File file)	Called by shred(ContentReader) when the reader points to a physical file.
protected void	shred(ContentReader reader)	Override to perform shredding on disparate forms of readers.

Methods inherited from class java.lang.Object

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

Constructor Details

FileWipingContentCleanerListener

public FileWipingContentCleanerListener()

Method Details

beforeDelete

public void beforeDelete(ContentStore sourceStore,
 String contentUrl)
                  throws ContentIOException

Description copied from interface: ContentStoreCleanerListener

Handle the notification that a store is about to be deleted

Specified by:

beforeDelete in interface ContentStoreCleanerListener

Parameters:

sourceStore - the store from which the content will be deleted

contentUrl - the URL of the content to be deleted

Throws:

ContentIOException

shred

protected void shred(ContentReader reader)
              throws IOException

Override to perform shredding on disparate forms of readers. This implementation will, by default, identify more specific readers and make calls for those.

Parameters:

reader - the reader to the content needing shredding

Throws:

IOException - any IO error

shred

protected void shred(File file)
              throws IOException

Called by shred(ContentReader) when the reader points to a physical file. The default implementation simply overwrites the content with zeros.

Parameters:

file - the file to shred before deletion

Throws:

IOException - any IO error