Package org.aksw.commons.io.util

Class FileMerger

java.lang.Object

org.aksw.commons.io.util.FileMerger

public class FileMerger
extends Object

Merges the byte content of a list of files into a single file. Use create(Path, List) to set up an instance of this class. Use run() to perform the merge. Calling run while another thread is already running raises an IllegalStateException. In principle, run be called again after another invocation completes in which the process with the exact same parameters is repeated; although typically the usefulness is limited.

Author:

Claus Stadler

Field Summary

Fields

Modifier and Type	Field	Description
protected Path	destPath
protected List<PathTransfer>	pathTransfers
protected Collection<Consumer<? super FileMerger>>	progressListeners
protected Thread	runThread
protected long	totalTransferSize
protected long	transferred

Constructor Summary

Constructors

Constructor	Description
FileMerger(Path destPath, List<PathTransfer> pathTransfers, long totalTransferSize)

Method Summary

Modifier and Type	Method	Description
void	abort()
Runnable	addProgressListener(Consumer<? super FileMerger> progressListener)
static FileMerger	create(Path destPath, List<Path> srcPaths)	Merge a sequence of files into a single destination file.
double	getProgress()	Convenience method that return the ration of transferred bytes and total bytes
void	notifyProgressListeners()
void	run()

Methods inherited from class java.lang.Object

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

Field Details

pathTransfers

protected List<PathTransfer> pathTransfers

destPath

protected Path destPath

totalTransferSize

protected long totalTransferSize

runThread

protected Thread runThread

transferred

protected long transferred

progressListeners

protected Collection<Consumer<? super FileMerger>> progressListeners

Constructor Details

FileMerger

public FileMerger(Path destPath,
 List<PathTransfer> pathTransfers,
 long totalTransferSize)

Method Details

addProgressListener

public Runnable addProgressListener(Consumer<? super FileMerger> progressListener)

notifyProgressListeners

public void notifyProgressListeners()

getProgress

public double getProgress()

Convenience method that return the ration of transferred bytes and total bytes

abort

public void abort()

run

public void run()
         throws IOException

Throws:

IOException

create

public static FileMerger create(Path destPath,
 List<Path> srcPaths)
                         throws IOException

Merge a sequence of files into a single destination file. The destination must not yet exist.

Parameters:

dest -

srcPaths -

Throws:

IOException