rossi.fstools.fs.fatfs
Class VFatDirEntry

java.lang.Object
  rossi.fstools.fs.fatfs.VFatDirEntry

All Implemented Interfaces:

DiskStructure

public class VFatDirEntry

extends java.lang.Object

implements DiskStructure

Representation of a VFAT directory entry. This is where long filenames are stored.

  On disk the superblock looks like this:

        31        24        16       8       0
        --------------------------------------
  0000  |  Seq     |      Name               |
        --------------------------------------
  0004  |           Name                     |
        --------------------------------------
  0008  |           Name            |Attr    |
        --------------------------------------
  000C  | Resrvd| Hash     |   Name          |
        --------------------------------------
  0010  |           Name                     |
        --------------------------------------
  0014  |           Name                     |
        --------------------------------------
  0018  |    Name          |   Start         |
        --------------------------------------
  001C  |           Name                     |
        --------------------------------------

 

Field Summary

protected byte	attr Attributes.
protected byte	hashValue Hash value of the FatDirEntry this is associated with.
protected java.lang.String	name A fragment of the long filename.
protected byte	sequence Sequence number.
protected int	start Starting cluster

Constructor Summary

VFatDirEntry()
Default constructor.

Method Summary

byte	getAttr() Attribute byte.
int	getDataSize() Get the size in bytes of the structure.
byte	getHashValue() Hash value of the FatDirEntry this long filename vfat record is assocated with.
java.lang.String	getName() Fragment of the long name stored in this record.
byte	getSequence() Get the sequence number.
int	getStart() Starting cluster.
void	loadFromBuffer(byte[] buffer, int offset) Loads the object from a memory buffer
void	setAttr(byte aAttr)
void	setHashValue(byte aHashValue)
void	setName(java.lang.String aName)
void	setSequence(byte aSequence)
void	setStart(int aStart)

Methods inherited from class java.lang.Object

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

Field Detail

sequence

protected byte sequence

Sequence number. First part of long filename is numbered 1, the last part has bit 6 set.

name

protected java.lang.String name

A fragment of the long filename.

attr

protected byte attr

Attributes. Must be 0xf.

hashValue

protected byte hashValue

Hash value of the FatDirEntry this is associated with.

start

protected int start

Starting cluster

Constructor Detail

VFatDirEntry

public VFatDirEntry()

Default constructor.

Method Detail

getDataSize

public int getDataSize()

Description copied from interface: DiskStructure

Get the size in bytes of the structure. For variable length sturctures this may represent the minimum length rather than the actual length.

Specified by:

getDataSize in interface DiskStructure

Returns:

the size of the structure.

getSequence

public byte getSequence()

Get the sequence number. First part of long filename is numbered 1, the last part has bit 6 set.

Returns:

sequence number.

setSequence

public void setSequence(byte aSequence)

getName

public java.lang.String getName()

Fragment of the long name stored in this record.

Returns:

long name fragment.

setName

public void setName(java.lang.String aName)

getAttr

public byte getAttr()

Attribute byte. Must by 0xf.

setAttr

public void setAttr(byte aAttr)

getHashValue

public byte getHashValue()

Hash value of the FatDirEntry this long filename vfat record is assocated with.

Returns:

hash value.

setHashValue

public void setHashValue(byte aHashValue)

getStart

public int getStart()

Starting cluster. Not used.

Returns:

starting cluster.

setStart

public void setStart(int aStart)

loadFromBuffer

public void loadFromBuffer(byte[] buffer,
                           int offset)
                    throws FsException

Description copied from interface: DiskStructure

Loads the object from a memory buffer

Specified by:

loadFromBuffer in interface DiskStructure

Parameters:

buffer - a byte[] containing data to be read in populating the object

offset - a int indicating the offset within the buffer to start parsing.

Throws:

FsException - if a parse error occurs.