org.cdlib.xtf.util
Class DirSync

Object
  DirSync

public class DirSync
extends Object

Routines to synchronize one directory hierarchy to match another. Now uses rsync for speed and simplicity, and adds a threshold above which we avoid per-subdirectory syncing and just do the whole thing.

Author:

Martin Haye

Field Summary

private SubDirFilter	filter
private static int	MAX_RSYNC_BATCH
static int	MAX_SELECTIVE_SYNC

Constructor Summary

DirSync()
Initialize a directory syncer with no sub-directory filter (all sub-directories will be scanned.)

DirSync(SubDirFilter filter)
Initialize with a sub-directory filter.

Method Summary

void	runRsync(File src, File dst, List<String> subDirs, String[] extraArgs) Run an rsync command with the standard arguments plus the specified subdirectories and optional extra args.
private void	selectiveSync(File srcDir, File dstDir) The main workhorse of the scanner.
void	syncDirs(File srcDir, File dstDir) Sync the files from source to dest.

Methods inherited from class Object

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

Field Detail

MAX_SELECTIVE_SYNC

public static final int MAX_SELECTIVE_SYNC

See Also:

Constant Field Values

MAX_RSYNC_BATCH

private static final int MAX_RSYNC_BATCH

See Also:

Constant Field Values

filter

private SubDirFilter filter

Constructor Detail

DirSync

public DirSync()

Initialize a directory syncer with no sub-directory filter (all sub-directories will be scanned.)

DirSync

public DirSync(SubDirFilter filter)

Initialize with a sub-directory filter.

Method Detail

syncDirs

public void syncDirs(File srcDir,
                     File dstDir)
              throws IOException

Sync the files from source to dest.

Parameters:

srcDir - Directory to match

dstDir - Directory to modify

Throws:

IOException - If anything goes wrong

selectiveSync

private void selectiveSync(File srcDir,
                           File dstDir)
                    throws IOException

The main workhorse of the scanner.

Parameters:

srcDir - Directory to match

dstDir - Directory to modify

Throws:

IOException - If anything goes wrong

runRsync

public void runRsync(File src,
                     File dst,
                     List<String> subDirs,
                     String[] extraArgs)
              throws IOException

Run an rsync command with the standard arguments plus the specified subdirectories and optional extra args.

Parameters:

src - Directory (or file) to match

dst - Directory (or file) to modify

subDirs - Sub-directories to rsync (null for all)

Throws:

IOException - If anything goes wrong