Class GroupDescriptor

java.lang.Object

GroupDescriptor

public class GroupDescriptor
extends java.lang.Object

This class opens the Group Descriptor of a block group and reads the Inode Table Pointers for all the block groups

Author:

Petros Soutzis, 2017-19

Field Summary

Fields

Modifier and Type	Field and Description
private java.nio.ByteBuffer	buffer
private int[]	gdPointer
private int	groupCount

Constructor Summary

Constructors

Constructor and Description
GroupDescriptor(byte[] bytes, int groupCount) Constructor of the GroupDescriptor class

Method Summary

Modifier and Type	Method and Description
(package private) int[]	getGDescPointer()
private void	read() This method reads the group descriptor for each block group and adds the offset of the inode table pointer to the gdPointer[] array

Methods inherited from class java.lang.Object

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

Field Detail

buffer

private java.nio.ByteBuffer buffer

groupCount

private int groupCount

gdPointer

private int[] gdPointer

Constructor Detail

GroupDescriptor

public GroupDescriptor(byte[] bytes,
                       int groupCount)

Constructor of the GroupDescriptor class

Parameters:

bytes - is the array of bytes that the group descriptor class will use

groupCount - is the number of block groups, calculated from data obtained from the SuperBlock

Method Detail

read

private void read()

This method reads the group descriptor for each block group and adds the offset of the inode table pointer to the gdPointer[] array

getGDescPointer

int[] getGDescPointer()

Returns:

the array of Inode Tables