Package com.usatiuk.dhfsfs.objects

Class FileHelper

java.lang.Object

com.usatiuk.dhfsfs.objects.FileHelper

@ApplicationScoped
public class FileHelper
extends Object

Helper class for working with files.

Constructor Summary

Constructors

Constructor	Description
FileHelper()

Method Summary

Modifier and Type	Method	Description
List<org.apache.commons.lang3.tuple.Pair<Long,JObjectKey>>	getChunks(File file)	Get the chunks of a file.
void	replaceChunks(File file, List<org.apache.commons.lang3.tuple.Pair<Long,JObjectKey>> chunks)	Replace the chunks of a file.

Methods inherited from class java.lang.Object

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

Constructor Details

FileHelper

public FileHelper()

Method Details

getChunks

public List<org.apache.commons.lang3.tuple.Pair<Long,JObjectKey>> getChunks(File file)

Get the chunks of a file. Transaction is expected to be already started.

Parameters:

file - the file to get chunks from

Returns:

a list of pairs of chunk offset and chunk key

replaceChunks

public void replaceChunks(File file,
 List<org.apache.commons.lang3.tuple.Pair<Long,JObjectKey>> chunks)

Replace the chunks of a file. All previous chunks will be deleted. Transaction is expected to be already started.

Parameters:

file - the file to replace chunks in

chunks - the list of pairs of chunk offset and chunk key