ch.braincell.stickbackup.process
Class BackupTask

java.lang.Object
  ch.braincell.stickbackup.process.BackupTask

public class BackupTask
extends java.lang.Object

Main class for backup tasks. This one starts the backup and processes it.

Author:

Andreas Studer

Field Summary

protected java.io.File	archivedDir archive directory where the obsolete files of the destination goes.
static java.lang.String	archiveFileDir all archiving files will be stored in a subdirectory "archive".
protected java.util.AbstractList<java.io.File>	archivingDestinationDirs All deleted or moved directories.
protected java.util.Set<java.io.File>	archivingDestinationFiles All deleted, moved or changed files from the backup directory which needs to be archived.
static java.lang.String	backupFileDir all backuped files will be copied in the subdirectory "backup".
protected int	backupprogress counts up in the progress of the backup.
protected java.io.File	destinationDir destination directory where the backup of the source goes.
protected int	destinationDirLength Length of the destination directory path (convenience for some methods)
protected java.util.Map<java.lang.String,java.io.File>	destinationDirList directory list of the destination directory (all already backed up files).
protected java.util.Map<java.lang.String,java.io.File>	destinationFileList Filelist of the destination directory (all already backed up files).
protected ch.braincell.stickbackup.process.ProcessListenerObservant	listener
protected java.util.AbstractList<java.io.File>	newSourceDirs All new directories from the source who needs to be backed up.
protected java.util.Set<java.io.File>	newSourceFiles All new or changed files from the source who needs to be backed up.
protected boolean	processCanceled is set to true if the backup process should be canceled.
protected java.io.File	sourceDir Source directory which needs to be backed up.
protected int	sourceDirLength Length of the source directory path (convenience for some methods)
protected java.util.Map<java.lang.String,java.io.File>	sourceDirList directory list of the source directory to be backed up
protected java.util.Map<java.lang.String,java.io.File>	sourceFileList Filelist of the source directory to be backed up

Constructor Summary

BackupTask()

Method Summary

void	addListener(ProcessListener listener)
protected void	archiveDirectories(java.util.Date date) Create all deleted / changed / moved Directories since the last backup in the archive directory.
protected void	archiveFiles(java.util.Date date) Copy all deleted / changed / moved files since the last backup from the destination directory to the archive directory.
protected void	backupDirectories() Create the new backup: create all new / moved directories from the source to the destination directory.
protected void	backupFiles() Create the new backup: copy all new / moved / changed files from the source to the destination directory.
protected void	cleanupArchivedDirectories() Deletes all archived Directories from the backup directory (destination directory).
protected void	cleanupArchivedFiles() Deletes all archived files from the backup directory (destination directory).
protected void	copyFile(java.io.File source, java.io.File destination) Copies a file from the source to the destination.
protected void	findAllChangedAndNewFiles() Compares the source directory with the destination directory and finds all changed and new files.
protected void	findAllNewSourceDirectories() Compares the source directory with the destination directory and finds all new directories.
protected void	findAllRemovedSourceDirectories() Compares the source directory with the destination directory and finds all removed directories.
protected void	findAllRemovedSourceFiles() Compares the source directory with the destination directory and finds all deleted and moved files.
int	getBackupprogress() Gets the actual progress index of the process.
boolean	isProcessCanceled() test if the process is canceled by the user.
protected void	loadDestDir() Loads all files from the destination directory (recursive) where the last backup is.
protected void	loadSourceDir() Loads all Files from the source directory (recursive) which needs to be backed up.
void	processBackupAndArchive() Processes archiving and backup of the files.
int	readFilesToBackupAndArchive() Reads the files from the source and the destination.
void	setProcessCanceled(boolean processCanceled) Sets the cancelation of the process.

Methods inherited from class java.lang.Object

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

Field Detail

backupFileDir

public static final java.lang.String backupFileDir

all backuped files will be copied in the subdirectory "backup".

archiveFileDir

public static final java.lang.String archiveFileDir

all archiving files will be stored in a subdirectory "archive".

backupprogress

protected volatile int backupprogress

counts up in the progress of the backup.

processCanceled

protected volatile boolean processCanceled

is set to true if the backup process should be canceled.

sourceFileList

protected java.util.Map<java.lang.String,java.io.File> sourceFileList

Filelist of the source directory to be backed up

sourceDirList

protected java.util.Map<java.lang.String,java.io.File> sourceDirList

directory list of the source directory to be backed up

destinationFileList

protected java.util.Map<java.lang.String,java.io.File> destinationFileList

Filelist of the destination directory (all already backed up files).

destinationDirList

protected java.util.Map<java.lang.String,java.io.File> destinationDirList

directory list of the destination directory (all already backed up files).

newSourceFiles

protected java.util.Set<java.io.File> newSourceFiles

All new or changed files from the source who needs to be backed up.

newSourceDirs

protected java.util.AbstractList<java.io.File> newSourceDirs

All new directories from the source who needs to be backed up.

archivingDestinationFiles

protected java.util.Set<java.io.File> archivingDestinationFiles

All deleted, moved or changed files from the backup directory which needs to be archived.

archivingDestinationDirs

protected java.util.AbstractList<java.io.File> archivingDestinationDirs

All deleted or moved directories.

sourceDir

protected java.io.File sourceDir

Source directory which needs to be backed up.

destinationDir

protected java.io.File destinationDir

destination directory where the backup of the source goes.

archivedDir

protected java.io.File archivedDir

archive directory where the obsolete files of the destination goes.

sourceDirLength

protected int sourceDirLength

Length of the source directory path (convenience for some methods)

destinationDirLength

protected int destinationDirLength

Length of the destination directory path (convenience for some methods)

listener

protected ch.braincell.stickbackup.process.ProcessListenerObservant listener

Constructor Detail

BackupTask

public BackupTask()

Method Detail

addListener

public void addListener(ProcessListener listener)

readFilesToBackupAndArchive

public int readFilesToBackupAndArchive()

Reads the files from the source and the destination. Both directories will be compared to find out which source files need to be backed up and which destination files needs to be archived.

Returns:

maximum index for watching the progress.

processBackupAndArchive

public void processBackupAndArchive()

Processes archiving and backup of the files. First there will be archiving of obsolete or changed backup-files. Then the source files will be archived.

loadSourceDir

protected void loadSourceDir()

Loads all Files from the source directory (recursive) which needs to be backed up.

loadDestDir

protected void loadDestDir()

Loads all files from the destination directory (recursive) where the last backup is.

findAllChangedAndNewFiles

protected void findAllChangedAndNewFiles()

Compares the source directory with the destination directory and finds all changed and new files.

findAllNewSourceDirectories

protected void findAllNewSourceDirectories()

Compares the source directory with the destination directory and finds all new directories. They will be backed up.

findAllRemovedSourceFiles

protected void findAllRemovedSourceFiles()

Compares the source directory with the destination directory and finds all deleted and moved files. They will be archived.

findAllRemovedSourceDirectories

protected void findAllRemovedSourceDirectories()

Compares the source directory with the destination directory and finds all removed directories. They will be archived.

archiveDirectories

protected void archiveDirectories(java.util.Date date)

Create all deleted / changed / moved Directories since the last backup in the archive directory.

Parameters:

date - the date to create the subdirectory in the archive.

Throws:

java.io.IOException

archiveFiles

protected void archiveFiles(java.util.Date date)
                     throws java.io.IOException

Copy all deleted / changed / moved files since the last backup from the destination directory to the archive directory.

Parameters:

date - the date to create the subdirectory in the archive.

Throws:

java.io.IOException

cleanupArchivedFiles

protected void cleanupArchivedFiles()
                             throws java.io.IOException

Deletes all archived files from the backup directory (destination directory).

Throws:

java.io.IOException

cleanupArchivedDirectories

protected void cleanupArchivedDirectories()

Deletes all archived Directories from the backup directory (destination directory).

backupDirectories

protected void backupDirectories()

Create the new backup: create all new / moved directories from the source to the destination directory.

backupFiles

protected void backupFiles()
                    throws java.io.IOException

Create the new backup: copy all new / moved / changed files from the source to the destination directory.

Throws:

java.io.IOException

copyFile

protected void copyFile(java.io.File source,
                        java.io.File destination)
                 throws java.io.IOException

Copies a file from the source to the destination.

Parameters:

source - sourcefile. Will be opened readonly.

destination - destinationfile.

Throws:

java.io.IOException

isProcessCanceled

public boolean isProcessCanceled()

test if the process is canceled by the user.

Returns:

true if it is canceled, false otherwise.

setProcessCanceled

public void setProcessCanceled(boolean processCanceled)

Sets the cancelation of the process.

getBackupprogress

public int getBackupprogress()

Gets the actual progress index of the process.

Returns:

index of progress.