FileWipingContentCleanerListener (Alfresco Repository 7.310 API)

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

All Methods Instance Methods Concrete Methods
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 Detail
  - FileWipingContentCleanerListener
```
public FileWipingContentCleanerListener()
```
- Method Detail
  - 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