org.metastatic.rsync
Class Rebuilder

java.lang.Object
  |
  +--org.metastatic.rsync.Rebuilder

public class Rebuilder

extends Object

Methods for file reconstruction from deltas.

Constructor Summary

Rebuilder()

Method Summary

static byte[]	rebuild(byte[] buf, List deltas) Reconstruct data into a new byte array.
static void	rebuild(OutputStream out, byte[] buf, List deltas) Reconstruct data into an output stream.
static void	rebuild(OutputStream out, File oldFile, List deltas) Reconstruct a file into an output stream.
static void	rebuildFile(File oldFile, File newFile, List deltas) Reconstruct a file into newFile.
static File	rebuildFile(File oldFile, List deltas) Reconstruct a file into a new file created with File.createTempFile(java.lang.String,java.lang.String,java.io.File).
static void	rebuildFileInPlace(File file, List deltas) Reconstruct a file in-place.

Methods inherited from class java.lang.Object

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

Constructor Detail

Rebuilder

public Rebuilder()

Method Detail

rebuild

public static byte[] rebuild(byte[] buf,
                             List deltas)

Reconstruct data into a new byte array.

Parameters:

buf - The original data.

deltas - The deltas to apply.

Returns:

The reconstructed data.

rebuild

public static void rebuild(OutputStream out,
                           byte[] buf,
                           List deltas)
                    throws IOException

Reconstruct data into an output stream.

Parameters:

out - The sink for reconstructed data.

buf - The original data.

deltas - The deltas to apply.

IOException

rebuild

public static void rebuild(OutputStream out,
                           File oldFile,
                           List deltas)
                    throws IOException

Reconstruct a file into an output stream.

Parameters:

out - The sink for reconstructed data.

oldFile - The original file.

deltas - The deltas to apply.

IOException

rebuildFile

public static File rebuildFile(File oldFile,
                               List deltas)
                        throws IOException

Reconstruct a file into a new file created with File.createTempFile(java.lang.String,java.lang.String,java.io.File). This file can then be renamed to the destination.

Parameters:

oldFile - The original file.

deltas - A collection of Deltas to apply to the original file.

Returns:

A unique File containing the reconstruction.

IOException

rebuildFile

public static void rebuildFile(File oldFile,
                               File newFile,
                               List deltas)
                        throws IOException

Reconstruct a file into newFile.

Parameters:

oldFile - The original file.

newFile - The file to write the reconstruction to. This must be a different file than oldFile

deltas - The Deltas to apply.

IOException

rebuildFileInPlace

public static void rebuildFileInPlace(File file,
                                      List deltas)
                               throws IOException

Reconstruct a file in-place. The contents of file will be overwritten with the contents of the reconstructed file.

Parameters:

file - The file to reconstruct.

deltas - The Deltas to apply.

IOException