Package fr.dyade.aaa.util.backup

Class RestoreFile

java.lang.Object

java.io.RandomAccessFile

fr.dyade.aaa.util.backup.RestoreFile

All Implemented Interfaces:

Closeable, DataInput, DataOutput, AutoCloseable

public class RestoreFile
extends RandomAccessFile
implements Closeable

Class allowing to handles a backup file.

Field Summary

Fields

Modifier and Type	Field	Description
private int	nbRead
private int	nbRecords

Constructor Summary

Constructors

Constructor	Description
RestoreFile(File file)	Opens a backup file to restore it.

Method Summary

Modifier and Type	Method	Description
static void	dump(File file, Pattern filter)	Dumps the objects contained in the backup file.
static void	extract(File backupFile, Pattern filter, File extractDir)	Extracts the objects contained in the backup file to the specified directory.
int	getNbRecords()	Number of objects recorded in the file.
BackupRecord	getNextRecord()	Reads the next record in file.
static void	list(File file, Pattern filter)	Lists the objects contained in the backup file.

Methods inherited from class java.io.RandomAccessFile

close, getChannel, getFD, getFilePointer, length, read, read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, seek, setLength, skipBytes, write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.io.Closeable

close

Field Detail

nbRecords

private int nbRecords

nbRead

private int nbRead

Constructor Detail

RestoreFile

public RestoreFile(File file)
            throws IOException

Opens a backup file to restore it.

Parameters:

file - The file to restore.

Throws:

IOException - An error occurs.

Method Detail

getNbRecords

public int getNbRecords()

Number of objects recorded in the file.

Returns:

the number of objects recorded in the file.

getNextRecord

public BackupRecord getNextRecord()
                           throws IOException

Reads the next record in file.

Returns:

the next record in file.

Throws:

IOException - An error occurs.

list

public static void list(File file,
                        Pattern filter)
                 throws IOException

Lists the objects contained in the backup file.

Parameters:

file - The backup file.

filter - The filter.

Throws:

IOException - An error occurs.

extract

public static void extract(File backupFile,
                           Pattern filter,
                           File extractDir)
                    throws IOException

Extracts the objects contained in the backup file to the specified directory.

Parameters:

backupFile - The backup file.

filter - The filter.

extractDir - The directory where to extract the data.

Throws:

IOException - An error occurs.

dump

public static void dump(File file,
                        Pattern filter)
                 throws IOException

Dumps the objects contained in the backup file.

Parameters:

file - The backup file.

filter - The filter.

Throws:

IOException - An error occurs.